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October Weather in Walden Tennessee, United States

Daily high temperatures decrease by 10°F, from 73°F to 63°F, rarely falling below 51°F or exceeding 81°F.

Daily low temperatures decrease by 10°F, from 53°F to 43°F, rarely falling below 30°F or exceeding 63°F.

For reference, on July 21, the hottest day of the year, temperatures in Walden typically range from 67°F to 85°F, while on January 23, the coldest day of the year, they range from 29°F to 46°F.

Average High and Low Temperature in October in Walden

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.

The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on October. The horizontal axis is the day, 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 October in Walden

Average Hourly Temperature in October in WaldenOct112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 AMSepNovvery coldvery coldcoldcoolcomfortablewarmcomfortable
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.

Massanzago-Ca' Baglioni-San Dono, Italy (4,857 miles away) is the far-away foreign place with temperatures most similar to Walden (view comparison).

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The month of October in Walden experiences gradually increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 34% to 39%.

The clearest day of the month is October 7, with clear, mostly clear, or partly cloudy conditions 67% of the time.

For reference, on January 3, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 56%, while on September 19, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 67%.

Cloud Cover Categories in October in Walden

Cloud Cover Categories in October in WaldenOct11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%SepNovOct 166%Oct 166%Oct 3161%Oct 3161%Oct 1166%Oct 1166%Oct 2163%Oct 2163%clearmostly 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.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Walden, the chance of a wet day over the course of October is essentially constant, remaining around 23% throughout.

For reference, the year's highest daily chance of a wet day is 44% on July 8, and its lowest chance is 21% on October 15.

Probability of Precipitation in October in Walden

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).

Rainfall

To show variation within the month and not just the monthly total, we show the rainfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day rainfall during October in Walden is essentially constant, remaining about 3.2 inches throughout, and rarely exceeding 6.4 inches or falling below 0.9 inches.

Average Monthly Rainfall in October in Walden

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.

Over the course of October in Walden, the length of the day is rapidly decreasing. From the start to the end of the month, the length of the day decreases by 1 hour, 3 minutes, implying an average daily decrease of 2 minutes, 6 seconds, and weekly decrease of 14 minutes, 39 seconds.

The shortest day of the month is October 31, with 10 hours, 45 minutes of daylight and the longest day is October 1, with 11 hours, 48 minutes of daylight.

Hours of Daylight and Twilight in October in Walden

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.

The earliest sunrise of the month in Walden is 7:36 AM on October 1 and the latest sunrise is 26 minutes later at 8:02 AM on October 31.

The latest sunset is 7:24 PM on October 1 and the earliest sunset is 37 minutes earlier at 6:47 PM on October 31.

Daylight saving time is observed in Walden during 2024, but it neither starts nor ends during October, so the entire month is in standard time.

For reference, on June 20, the longest day of the year, the Sun rises at 6:27 AM and sets 14 hours, 32 minutes later, at 8:58 PM, while on December 21, the shortest day of the year, it rises at 7:46 AM and sets 9 hours, 47 minutes later, at 5:33 PM.

Sunrise & Sunset with Twilight and Daylight Saving Time in October in Walden

Sunrise & Sunset with Twilight and Daylight Saving Time in October in WaldenOct11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031312 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMSepNov7:36 AM7:36 AMOct 17:24 PMOct 17:24 PM8:02 AM8:02 AMOct 316:47 PMOct 316:47 PM7:44 AM7:44 AMOct 117:10 PMOct 117:10 PM7:52 AM7:52 AMOct 216:58 PMOct 216:58 PMSolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day over the course of October. 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 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 October in Walden

Solar Elevation and Azimuth in October in WaldenOct112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 AMSepNov001010202020303040405000010102020303030405060
northeastsouthwest
Solar elevation and azimuth over the course of October 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 October 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. The label associated with each bar indicates the date and time that the phase is obtained, and the companion time labels indicate the rise and set times of the Moon for the nearest time interval in which the moon is above the horizon.

Moon Rise, Set & Phases in October in Walden

Moon Rise, Set & Phases in October in WaldenOct112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMSepNovSep 29:56 PMSep 29:56 PMSep 1710:35 PMSep 1710:35 PMOct 22:50 PMOct 22:50 PMOct 177:27 AMOct 177:27 AMNov 18:48 AMNov 18:48 AMNov 154:29 PMNov 154:29 PM6:41 AM6:41 AM8:09 PM8:09 PM7:40 PM7:40 PM7:56 AM7:56 AM7:25 AM7:25 AM7:21 PM7:21 PM6:35 PM6:35 PM7:57 AM7:57 AM8:10 AM8:10 AM6:41 PM6:41 PM5:15 PM5:15 PM8:17 AM8:17 AM
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.
Oct 2024IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
1%6:29 AME6:59 PMW-12:46 PMS252,341 mi
2
0%7:25 AME7:21 PMW-1:24 PMS252,596 mi
3
1%8:21 AME7:44 PMWSW-2:03 PMS252,420 mi
4
4%9:18 AMESE8:09 PMWSW-2:44 PMS251,805 mi
5
8%10:17 AMESE8:38 PMWSW-3:27 PMS250,721 mi
6
14%11:17 AMESE9:12 PMWSW-4:14 PMS249,130 mi
7
22%12:19 PMESE9:52 PMSW-5:05 PMS247,003 mi
8
31%1:20 PMSE10:41 PMSW-6:00 PMS244,331 mi
9
41%2:17 PMSE11:38 PMSW-6:57 PMS241,157 mi
10
50%3:08 PMSE--7:55 PMS237,587 mi
11
63%-12:42 AMWSW3:53 PMESE8:53 PMS233,804 mi
12
74%-1:52 AMWSW4:32 PMESE9:47 PMS230,070 mi
13
84%-3:03 AMWSW5:05 PMESE10:40 PMS226,701 mi
14
92%-4:16 AMWSW5:36 PME11:31 PMS224,036 mi
15
95%-5:28 AMW6:06 PME--
16
97%-6:42 AMW6:35 PME12:21 AMS222,382 mi
17
100%-7:57 AMWNW7:08 PMENE1:13 AMS221,956 mi
18
99%-9:13 AMWNW7:44 PMENE2:06 AMS222,840 mi
19
95%-10:30 AMWNW8:27 PMENE3:03 AMS224,953 mi
20
88%-11:45 AMWNW9:17 PMNE4:02 AMS228,066 mi
21
80%-12:53 PMNW10:15 PMNE5:04 AMS231,843 mi
22
70%-1:52 PMNW11:18 PMNE6:04 AMS235,906 mi
23
59%-2:40 PMWNW-7:02 AMS239,902 mi
24
50%12:23 AMENE3:19 PMWNW-7:54 AMS243,546 mi
25
38%1:26 AMENE3:51 PMWNW-8:42 AMS246,644 mi
26
29%2:28 AMENE4:18 PMWNW-9:26 AMS249,086 mi
27
20%3:26 AMENE4:42 PMW-10:07 AMS250,833 mi
28
13%4:23 AME5:04 PMW-10:46 AMS251,904 mi
29
7%5:19 AME5:26 PMW-11:24 AMS252,353 mi
30
3%6:15 AME5:49 PMW-12:03 PMS252,255 mi
31
1%7:11 AMESE6:14 PMWSW-12:43 PMS251,688 mi

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.

The chance that a given day will be muggy in Walden is rapidly decreasing during October, falling from 13% to 1% over the course of the month.

For reference, on July 23, the muggiest day of the year, there are muggy conditions 82% of the time, while on December 17, the least muggy day of the year, there are muggy conditions 0% of the time.

Humidity Comfort Levels in October in Walden

Humidity Comfort Levels in October in WaldenOct11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%SepNovOct 113%Oct 113%Oct 311%Oct 311%Oct 115%Oct 115%Oct 212%Oct 212%muggymuggyhumidhumiddrydrycomfortablecomfortableoppressiveoppressive
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.

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 Walden is essentially constant during October, remaining within 0.2 miles per hour of 4.3 miles per hour throughout.

For reference, on February 26, the windiest day of the year, the daily average wind speed is 5.7 miles per hour, while on July 31, the calmest day of the year, the daily average wind speed is 3.2 miles per hour.

Average Wind Speed in October in Walden

The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The hourly average wind direction in Walden throughout October is predominantly from the south, with a peak proportion of 38% on October 30.

Wind Direction in October in Walden

Wind Direction in October in WaldenOct11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%20%80%40%60%60%40%80%20%100%0%SepNovsoutheastnorthwest
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).

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 Walden typically lasts for 6.6 months (204 days), from around April 6 to around October 27, rarely starting before March 15 or after April 25, and rarely ending before October 8 or after November 14.

During October in Walden, the chance that a given day is within the growing season is very rapidly decreasing falling from 96% to 38% over the course of the month.

Time Spent in Various Temperature Bands and the Growing Season in October in Walden

Time Spent in Various Temperature Bands and the Growing Season in October in Waldengrowing seasonOct11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%SepNov96%Oct 196%Oct 1Oct 3138%Oct 3138%86%Oct 1186%Oct 1165%Oct 2165%Oct 21Nov 1410%Nov 1410%freezingvery coldcoldcoolcomfortablewarmhot
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.

The average accumulated growing degree days in Walden are increasing during October, increasing by 263°F, from 3,640°F to 3,902°F, over the course of the month.

Growing Degree Days in October in Walden

Growing Degree Days in October in WaldenOct11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031313,400°F3,400°F3,500°F3,500°F3,600°F3,600°F3,700°F3,700°F3,800°F3,800°F3,900°F3,900°F4,000°F4,000°F4,100°F4,100°F4,200°F4,200°FSepNovOct 13,640°FOct 13,640°FOct 313,902°FOct 313,902°FOct 113,751°FOct 113,751°FOct 213,838°FOct 213,838°F
The average growing degree days accumulated over the course of October, 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 in Walden is decreasing during October, falling by 1.3 kWh, from 4.8 kWh to 3.6 kWh, over the course of the month.

Average Daily Incident Shortwave Solar Energy in October in Walden

Average Daily Incident Shortwave Solar Energy in October in WaldenOct11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWhSepNovOct 14.8 kWhOct 14.8 kWhOct 313.6 kWhOct 313.6 kWhOct 114.5 kWhOct 114.5 kWhOct 214.0 kWhOct 214.0 kWh
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.

For the purposes of this report, the geographical coordinates of Walden are 35.165 deg latitude, -85.301 deg longitude, and 1,900 ft elevation.

The topography within 2 miles of Walden contains very significant variations in elevation, with a maximum elevation change of 1,365 feet and an average elevation above sea level of 1,493 feet. Within 10 miles also contains very significant variations in elevation (1,824 feet). Within 50 miles contains very significant variations in elevation (3,720 feet).

The area within 2 miles of Walden is covered by trees (97%), within 10 miles by trees (71%) and artificial surfaces (18%), and within 50 miles by trees (67%) and cropland (27%).

This report illustrates the typical weather in Walden, 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 4 weather stations near enough to contribute to our estimation of the temperature and dew point in Walden.

For each station, the records are corrected for the elevation difference between that station and Walden 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 Walden is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Walden 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 Walden 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.

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