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Climate and Average Weather Year Round in Franklin Michigan, United States

In Franklin, the summers are warm; the winters are freezing, snowy, and windy; and it is partly cloudy year round. Over the course of the year, the temperature typically varies from 20°F to 84°F and is rarely below 5°F or above 92°F.

Based on the tourism score, the best time of year to visit Franklin for warm-weather activities is from mid June to mid September.

Climate in Franklin

very coldcoldcoolwarmcoolcoldvery coldJanFebMarAprMayJunJulAugSepOctNovDecNowNow67%67%36%36%clearovercastprecipitation: 2.8 inprecipitation: 2.8 in1.2 in1.2 inmuggy: 29%muggy: 29%0%0%drydrytourism score: 6.9tourism score: 6.90.00.0
Franklin weather by month. Click on each chart for more information.

The warm season lasts for 3.7 months, from May 25 to September 16, with an average daily high temperature above 73°F. The hottest month of the year in Franklin is July, with an average high of 83°F and low of 65°F.

The cold season lasts for 3.4 months, from November 29 to March 9, with an average daily high temperature below 42°F. The coldest month of the year in Franklin is January, with an average low of 21°F and high of 32°F.

Average High and Low Temperature in Franklin

Average High and Low Temperature in FranklinwarmcoldcoldJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°FJan 2932°FJan 2932°FJul 1884°FJul 1884°F20°F20°F66°F66°FMay 2573°FMay 2573°FSep 1673°FSep 1673°FNov 2942°FNov 2942°FMar 942°FMar 942°F54°F54°F56°F56°F31°F31°F27°F27°FNowNow
The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.
AverageJanFebMarAprMayJunJulAugSepOctNovDec
High 32°F35°F46°F59°F70°F80°F83°F81°F73°F61°F48°F37°F
Temp. 26°F28°F37°F48°F60°F70°F74°F72°F65°F52°F41°F31°F
Low 21°F22°F30°F41°F51°F61°F65°F64°F56°F45°F35°F26°F

The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.

Average Hourly Temperature in Franklin

Average Hourly Temperature in FranklinJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMNowNowfreezingvery coldvery coldcoldcoldcoolcoolcomfortablewarmfreezing
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

Odessa, Ukraine (5,087 miles away); Blagodatnoye, Russia (5,517 miles); and Damāvand, Iran (6,349 miles) are the far-away foreign places with temperatures most similar to Franklin (view comparison).

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In Franklin, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.

The clearer part of the year in Franklin begins around May 31 and lasts for 5.0 months, ending around October 31.

The clearest month of the year in Franklin is August, during which on average the sky is clear, mostly clear, or partly cloudy 67% of the time.

The cloudier part of the year begins around October 31 and lasts for 7.0 months, ending around May 31.

The cloudiest month of the year in Franklin is January, during which on average the sky is overcast or mostly cloudy 64% of the time.

Cloud Cover Categories in Franklin

Cloud Cover Categories in FranklinclearercloudiercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Aug 2267%Aug 2267%Jan 1036%Jan 1036%May 3152%May 3152%Oct 3152%Oct 3152%NowNowclearmostly clearpartly cloudymostly cloudyovercast
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds.
FractionJanFebMarAprMayJunJulAugSepOctNovDec
Cloudier 64%61%56%53%51%43%36%33%35%43%53%61%
Clearer 36%39%44%47%49%57%64%67%65%57%47%39%

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Franklin varies throughout the year.

The wetter season lasts 6.3 months, from March 29 to October 7, with a greater than 26% chance of a given day being a wet day. The month with the most wet days in Franklin is June, with an average of 10.1 days with at least 0.04 inches of precipitation.

The drier season lasts 5.7 months, from October 7 to March 29. The month with the fewest wet days in Franklin is February, with an average of 5.4 days with at least 0.04 inches of precipitation.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Based on this categorization, the most common form of precipitation in Franklin changes throughout the year.

Rain alone is the most common for 11 months, from February 8 to January 19. The month with the most days of rain alone in Franklin is June, with an average of 10.1 days.

Snow alone is the most common for 2.9 weeks, from January 19 to February 8. The month with the most days of snow alone in Franklin is January, with an average of 2.3 days.

Daily Chance of Precipitation in Franklin

Daily Chance of Precipitation in FranklinrainJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Jun 1235%Jun 1235%Feb 316%Feb 316%Mar 2926%Mar 2926%Oct 726%Oct 726%NowNowsnowrain
The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).
Days ofJanFebMarAprMayJunJulAugSepOctNovDec
Rain 2.7d2.4d5.1d8.4d9.9d10.1d10.2d9.8d9.0d7.4d6.3d4.4d
Mixed 0.9d0.9d1.0d0.3d0.0d0.0d0.0d0.0d0.0d0.1d0.4d1.1d
Snow 2.3d2.1d0.9d0.1d0.0d0.0d0.0d0.0d0.0d0.0d0.2d1.4d
Any 5.9d5.4d7.0d8.7d9.9d10.1d10.2d9.8d9.0d7.5d6.8d6.9d

To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Franklin experiences significant seasonal variation in monthly rainfall.

Rain falls throughout the year in Franklin. The month with the most rain in Franklin is September, with an average rainfall of 2.8 inches.

The month with the least rain in Franklin is January, with an average rainfall of 0.8 inches.

Average Monthly Rainfall in Franklin

Average Monthly Rainfall in FranklinJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in1 in1 in2 in2 in3 in3 in4 in4 in5 in5 in6 in6 inJun 12.8 inJun 12.8 inJan 290.7 inJan 290.7 inSep 92.8 inSep 92.8 inAug 22.8 inAug 22.8 inNowNow
The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average snowfall.
JanFebMarAprMayJunJulAugSepOctNovDec
Rainfall 0.8″0.8″1.4″2.3″2.7″2.8″2.6″2.7″2.8″2.2″1.9″1.3″

Snowfall

As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day of the year. Franklin experiences significant seasonal variation in monthly snowfall.

The snowy period of the year lasts for 4.5 months, from November 21 to April 5, with a sliding 31-day snowfall of at least 1.0 inches. The month with the most snow in Franklin is February, with an average snowfall of 5.1 inches.

The snowless period of the year lasts for 7.5 months, from April 5 to November 21. The least snow falls around July 19, with an average total accumulation of 0.0 inches.

Average Monthly Snowfall in Franklin

Average Monthly Snowfall in FranklinsnowsnowJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in2 in2 in4 in4 in6 in6 in8 in8 in10 in10 in12 in12 inFeb 145.1 inFeb 145.1 inJul 190.0 inJul 190.0 inNov 211.0 inNov 211.0 inApr 51.0 inApr 51.0 in
The average snowfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average rainfall.
JanFebMarAprMayJunJulAugSepOctNovDec
Snowfall 4.7″5.1″2.8″0.5″0.0″0.0″0.0″0.0″0.0″0.0″0.6″3.8″

The length of the day in Franklin varies significantly over the course of the year. In 2024, the shortest day is December 21, with 9 hours, 3 minutes of daylight; the longest day is June 20, with 15 hours, 18 minutes of daylight.

Hours of Daylight and Twilight in Franklin

Hours of Daylight and Twilight in FranklinJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 8 minMar 1912 hr, 8 minMar 1915 hr, 18 minJun 2015 hr, 18 minJun 2012 hr, 11 minSep 2212 hr, 11 minSep 229 hr, 3 minDec 219 hr, 3 minDec 21nightnightdayNowNow
The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.
Hours ofJanFebMarAprMayJunJulAugSepOctNovDec
Daylight 9.5h10.6h12.0h13.4h14.6h15.3h14.9h13.8h12.4h11.0h9.8h9.1h

The earliest sunrise is at 5:55 AM on June 14, and the latest sunrise is 2 hours, 14 minutes later at 8:08 AM on November 2. The earliest sunset is at 4:59 PM on December 8, and the latest sunset is 4 hours, 15 minutes later at 9:14 PM on June 26.

Daylight saving time (DST) is observed in Franklin during 2024, starting in the spring on March 10, lasting 7.8 months, and ending in the fall on November 3.

Sunrise & Sunset with Twilight and Daylight Saving Time in Franklin

Sunrise & Sunset with Twilight and Daylight Saving Time in FranklinJanFebMarAprMayJunJulAugSepOctNovDec2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 145:55 AMJun 145:55 AM9:14 PMJun 269:14 PMJun 26Dec 84:59 PMDec 84:59 PM8:08 AMNov 28:08 AMNov 2Mar 10DSTMar 10DSTDSTNov 3DSTNov 3daynightnightnightnightSolarMidnightSolarMidnightSolarNoonSunriseSunsetNowNow
The solar day over the course of the year 2024. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray. The transitions to and from daylight saving time are indicated by the 'DST' labels.

The figure below presents a compact representation of the sun's elevation (the angle of the sun above the horizon) and azimuth (its compass bearing) for every hour of every day in the reporting period. The horizontal axis is the day of the year and the vertical axis is the hour of the day. For a given day and hour of that day, the background color indicates the azimuth of the sun at that moment. The black isolines are contours of constant solar elevation.

Solar Elevation and Azimuth in Franklin

Solar Elevation and Azimuth in FranklinJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AM0001010101020202030303040405050606000010101020202020303040405050602471NowNow
northeastsouthwest
Solar elevation and azimuth over the course of the year 2024. The black lines are lines of constant solar elevation (the angle of the sun above the horizon, in degrees). The background color fills indicate the azimuth (the compass bearing) of the sun. The lightly tinted areas at the boundaries of the cardinal compass points indicate the implied intermediate directions (northeast, southeast, southwest, and northwest).

The figure below presents a compact representation of key lunar data for 2024. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases.

Moon Rise, Set & Phases in Franklin

The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. The shaded overlays indicate night and civil twilight.

We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.

Franklin experiences some seasonal variation in the perceived humidity.

The muggier period of the year lasts for 3.7 months, from May 30 to September 21, during which time the comfort level is muggy, oppressive, or miserable at least 7% of the time. The month with the most muggy days in Franklin is July, with 8.2 days that are muggy or worse.

The least muggy day of the year is February 23, when muggy conditions are essentially unheard of.

Humidity Comfort Levels in Franklin

Humidity Comfort Levels in FranklinmuggyJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Feb 230%Feb 230%Jul 3129%Jul 3129%May 307%May 307%Sep 217%Sep 217%NowNowmuggymuggycomfortablecomfortabledrydryhumidhumidoppressiveoppressive
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The percentage of time spent at various humidity comfort levels, categorized by dew point.
JanFebMarAprMayJunJulAugSepOctNovDec
Muggy days 0.0d0.0d0.0d0.0d1.0d4.5d8.2d7.5d3.1d0.2d0.0d0.0d

This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.

The average hourly wind speed in Franklin experiences significant seasonal variation over the course of the year.

The windier part of the year lasts for 7.2 months, from October 5 to May 10, with average wind speeds of more than 10.6 miles per hour. The windiest month of the year in Franklin is January, with an average hourly wind speed of 13.0 miles per hour.

The calmer time of year lasts for 4.8 months, from May 10 to October 5. The calmest month of the year in Franklin is August, with an average hourly wind speed of 8.2 miles per hour.

Average Wind Speed in Franklin

Average Wind Speed in FranklinwindywindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mph16 mph16 mph18 mph18 mph20 mph20 mphJan 1513.2 mphJan 1513.2 mphAug 38.0 mphAug 38.0 mphOct 510.6 mphOct 510.6 mphMay 1010.6 mphMay 1010.6 mphNowNow
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.
JanFebMarAprMayJunJulAugSepOctNovDec
Wind Speed (mph) 13.012.712.511.910.39.18.38.29.411.012.012.5

The predominant average hourly wind direction in Franklin varies throughout the year.

The wind is most often from the south for 3.4 weeks, from August 24 to September 17, with a peak percentage of 31% on September 13. The wind is most often from the west for 11 months, from September 17 to August 24, with a peak percentage of 46% on January 1.

Wind Direction in Franklin

Wind Direction in FranklinWSWJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%NowNowwestsoutheastnorth
northeastsouthwest
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than 1.0 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Franklin is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.

The average water temperature experiences extreme seasonal variation over the course of the year.

The time of year with warmer water lasts for 3.0 months, from June 22 to September 23, with an average temperature above 66°F. The month of the year in Franklin with the warmest water is August, with an average temperature of 73°F.

The time of year with cooler water lasts for 4.3 months, from December 9 to April 17, with an average temperature below 41°F. The month of the year in Franklin with the coolest water is February, with an average temperature of 33°F.

Average Water Temperature in Franklin

Average Water Temperature in FranklinwarmcoolcoolJanFebMarAprMayJunJulAugSepOctNovDec30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°FAug 374°FAug 374°F33°FFeb 1733°FFeb 17Jun 2266°FJun 2266°FSep 2366°FSep 2366°FDec 941°FDec 941°FApr 1741°FApr 1741°FNowNow
The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.
WaterJanFebMarAprMayJunJulAugSepOctNovDec
Temperature 35°F33°F35°F41°F51°F63°F72°F73°F68°F58°F48°F40°F

To characterize how pleasant the weather is in Franklin throughout the year, we compute two travel scores.

The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best time of year to visit Franklin for general outdoor tourist activities is from mid June to mid September, with a peak score in the third week of August.

Tourism Score in Franklin

Tourism Score in Franklinbest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810106.96.90.00.0NowNowtemperaturetemperature cloudscloudsprecipitationprecipitationtourism score
The tourism score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best time of year to visit Franklin for hot-weather activities is from late June to mid August, with a peak score in the third week of July.

Beach/Pool Score in Franklin

Beach/Pool Score in Franklinbest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810105.65.60.00.0NowNowtemperaturetemperature cloudscloudsprecipitationprecipitationbeach/pool score
The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Methodology

For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed.

Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies.

Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more.

Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter.

Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter.

Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

The growing season in Franklin typically lasts for 6.3 months (194 days), from around April 18 to around October 29, rarely starting before April 2 or after May 4, and rarely ending before October 10 or after November 15.

Time Spent in Various Temperature Bands and the Growing Season in Franklin

Time Spent in Various Temperature Bands and the Growing Season in Franklingrowing seasonJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%50%Apr 1850%Apr 1850%Oct 2950%Oct 2990%May 490%May 490%Oct 1090%Oct 1010%Apr 210%Apr 210%Nov 1510%Nov 150%Dec 180%Dec 18Jul 25100%Jul 25100%frigidfreezingvery coldcoolcomfortablewarmhotcold
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The percentage of time spent in various temperature bands. The black line is the percentage chance that a given day is within the growing season.

Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F.

Based on growing degree days alone, the first spring blooms in Franklin should appear around April 16, only rarely appearing before April 2 or after April 29.

Growing Degree Days in Franklin

Growing Degree Days in FranklinJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F500°F500°F1,000°F1,000°F1,500°F1,500°F2,000°F2,000°F2,500°F2,500°F3,000°F3,000°F3,500°F3,500°FApr 1689°FApr 1689°FJun 21900°FJun 21900°FJul 301,800°FJul 301,800°FDec 313,164°FDec 313,164°F
The average growing degree days accumulated over the course of the year, with 25th to 75th and 10th to 90th percentile bands.

This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.

The average daily incident shortwave solar energy experiences extreme seasonal variation over the course of the year.

The brighter period of the year lasts for 3.6 months, from May 2 to August 20, with an average daily incident shortwave energy per square meter above 5.8 kWh. The brightest month of the year in Franklin is June, with an average of 6.8 kWh.

The darker period of the year lasts for 3.4 months, from November 1 to February 13, with an average daily incident shortwave energy per square meter below 2.5 kWh. The darkest month of the year in Franklin is December, with an average of 1.5 kWh.

Average Daily Incident Shortwave Solar Energy in Franklin

Average Daily Incident Shortwave Solar Energy in FranklinbrightdarkdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh9 kWh9 kWhJun 306.9 kWhJun 306.9 kWhDec 191.4 kWhDec 191.4 kWhMay 25.8 kWhMay 25.8 kWhAug 205.8 kWhAug 205.8 kWhNov 12.5 kWhNov 12.5 kWhFeb 132.5 kWhFeb 132.5 kWhNowNow
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.
JanFebMarAprMayJunJulAugSepOctNovDec
Solar Energy (kWh) 1.72.63.95.26.26.86.75.94.83.32.01.5

For the purposes of this report, the geographical coordinates of Franklin are 42.522 deg latitude, -83.306 deg longitude, and 833 ft elevation.

The topography within 2 miles of Franklin contains only modest variations in elevation, with a maximum elevation change of 236 feet and an average elevation above sea level of 787 feet. Within 10 miles also contains only modest variations in elevation (476 feet). Within 50 miles contains only modest variations in elevation (797 feet).

The area within 2 miles of Franklin is covered by artificial surfaces (95%), within 10 miles by artificial surfaces (93%), and within 50 miles by cropland (43%) and artificial surfaces (23%).

This report illustrates the typical weather in Franklin, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

Temperature and Dew Point

There are 3 weather stations near enough to contribute to our estimation of the temperature and dew point in Franklin.

For each station, the records are corrected for the elevation difference between that station and Franklin according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.

The estimated value at Franklin is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Franklin and a given station.

The stations contributing to this reconstruction are:

To get a sense of how much these sources agree with each other, you can view a comparison of Franklin and the stations that contribute to our estimates of its temperature history and climate. Please note that each source's contribution is adjusted for elevation and the relative change present in the MERRA-2 data.

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , by Jean Meeus.

All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.

Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.

Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.

Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .

Time zones for airports and weather stations are provided by AskGeo.com .

Maps are © OpenStreetMap contributors.

Disclaimer

The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.

We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.

We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.

Please review our full terms contained on our Terms of Service page.