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Summer Weather in Tanaina Alaska, United States

Daily high temperatures are around 64°F, rarely falling below 55°F or exceeding 75°F. The highest daily average high temperature is 67°F on July 13.

Daily low temperatures are around 48°F, rarely falling below 39°F or exceeding 55°F. The highest daily average low temperature is 51°F on July 20.

For reference, on July 13, the hottest day of the year, temperatures in Tanaina typically range from 51°F to 67°F, while on January 16, the coldest day of the year, they range from 11°F to 23°F.

Average High and Low Temperature in the Summer in Tanaina

Average High and Low Temperature in the Summer in TanainaJunJulAug25°F25°F30°F30°F35°F35°F40°F40°F45°F45°F50°F50°F55°F55°F60°F60°F65°F65°F70°F70°F75°F75°FSpringFallJul 1367°FJul 1367°F51°F51°FJun 162°FJun 162°F44°F44°FAug 3160°FAug 3160°F45°F45°FJul 167°FJul 167°F50°F50°FAug 166°FAug 166°F51°F51°F
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 summer temperatures. 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 the Summer in Tanaina

Average Hourly Temperature in the Summer in TanainaJunJulAug12 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 AMSpringFallvery coldvery coldcoldcoolcoolvery cold
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.

Reinsvoll, Norway (3,925 miles away) and Roknäs, Sweden (3,654 miles) are the far-away foreign places with temperatures most similar to Tanaina (view comparison).

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The summer in Tanaina experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 62% throughout the season. The highest chance of overcast or mostly cloudy conditions is 65% on July 10.

The clearest day of the summer is August 27, with clear, mostly clear, or partly cloudy conditions 41% of the time.

For reference, on July 10, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 65%, while on March 15, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 49%.

Cloud Cover Categories in the Summer in Tanaina

Cloud Cover Categories in the Summer in TanainaJunJulAug0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%SpringFallMar 1549%Mar 1549%Jun 141%Jun 141%Aug 3140%Aug 3140%Jul 137%Jul 137%Aug 138%Aug 138%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 Tanaina, the chance of a wet day over the course of the summer is very rapidly increasing, starting the season at 27% and ending it at 42%.

For reference, the year's highest daily chance of a wet day is 44% on September 14, and its lowest chance is 14% on March 27.

Probability of Precipitation in the Summer in Tanaina

Probability of Precipitation in the Summer in TanainaJunJulAug0%0%5%5%10%10%15%15%20%20%25%25%30%30%35%35%40%40%45%45%SpringFallJun 127%Jun 127%Aug 3142%Aug 3142%Jul 130%Jul 130%Aug 141%Aug 141%rain
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 season and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day rainfall during the summer in Tanaina is rapidly increasing, starting the season at 1.8 inches, when it rarely exceeds 3.1 inches or falls below 0.7 inches, and ending the season at 3.7 inches, when it rarely exceeds 6.2 inches or falls below 1.9 inches.

The highest average 31-day accumulation is 3.8 inches on August 25.

Average Monthly Rainfall in the Summer in Tanaina

Average Monthly Rainfall in the Summer in TanainaJunJulAug0 in0 in1 in1 in2 in2 in3 in3 in4 in4 in5 in5 in6 in6 in7 in7 inSpringFallAug 253.8 inAug 253.8 inJun 11.8 inJun 11.8 inJul 12.6 inJul 12.6 inAug 13.5 inAug 13.5 in
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 the summer in Tanaina, the length of the day is very rapidly decreasing. From the start to the end of the season, the length of the day decreases by 4 hours, 38 minutes, implying an average daily decrease of 3 minutes, 4 seconds, and weekly decrease of 21 minutes, 25 seconds.

The shortest day of the summer is August 31, with 14 hours, 18 minutes of daylight and the longest day is June 20, with 19 hours, 34 minutes of daylight.

Hours of Daylight and Twilight in the Summer in Tanaina

Hours of Daylight and Twilight in the Summer in TanainaJunJulAug0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrSpringFall19 hr, 34 minJun 2019 hr, 34 minJun 20nightnightdayday14 hr, 18 minAug 3114 hr, 18 minAug 3117 hr, 8 minAug 117 hr, 8 minAug 1
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 summer in Tanaina is 4:12 AM on June 18 and the latest sunrise is 2 hours, 35 minutes later at 6:47 AM on August 31.

The latest sunset is 11:46 PM on June 22 and the earliest sunset is 2 hours, 41 minutes earlier at 9:06 PM on August 31.

Daylight saving time is observed in Tanaina during 2024, but it neither starts nor ends during the summer, so the entire season is in standard time.

For reference, on June 20, the longest day of the year, the Sun rises at 4:12 AM and sets 19 hours, 34 minutes later, at 11:46 PM, while on December 21, the shortest day of the year, it rises at 10:17 AM and sets 5 hours, 18 minutes later, at 3:35 PM.

Sunrise & Sunset with Twilight in the Summer in Tanaina

Sunrise & Sunset with Twilight in the Summer in TanainaJunJulAug2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM2 AMSpringFall4:12 AM4:12 AM11:45 PMJun 1811:45 PMJun 186:47 AM6:47 AM9:06 PMAug 319:06 PMAug 314:27 AM4:27 AM5:28 AM5:28 AM10:37 PMAug 110:37 PMAug 1SolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day in the summer. 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 the Summer in Tanaina

Solar Elevation and Azimuth in the Summer in TanainaJunJulAug12 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 AMSpringFall00102020303040500010102030304040
northeastsouthwest
Solar elevation and azimuth in the the summer of 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 the summer of 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 the Summer in Tanaina

Moon Rise, Set & Phases in the Summer in TanainaJunJulAug12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMSpringFallMay 77:23 PMMay 77:23 PMMay 235:54 AMMay 235:54 AMJun 64:38 AMJun 64:38 AMJun 215:09 PMJun 215:09 PMJul 52:58 PMJul 52:58 PMJul 212:18 AMJul 212:18 AMAug 43:14 AMAug 43:14 AMAug 1910:26 AMAug 1910:26 AMSep 25:56 PMSep 25:56 PMSep 176:35 PMSep 176:35 PM5:05 AM5:05 AM10:55 PM10:55 PM3:06 AM3:06 AM1:06 AM1:06 AM4:20 AM4:20 AM11:07 PM11:07 PM5:39 AM5:39 AM9:12 PM9:12 PM8:12 PM8:12 PM8:34 AM8:34 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.

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 Tanaina is essentially constant during the summer, remaining around 0% throughout.

Humidity Comfort Levels in the Summer in Tanaina

Humidity Comfort Levels in the Summer in TanainaJunJulAug0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%SpringFallJun 10%Jun 10%Aug 310%Aug 310%Jul 10%Jul 10%Aug 10%Aug 10%drydry
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 Tanaina is essentially constant during the summer, remaining within 0.4 miles per hour of 4.1 miles per hour throughout.

For reference, on January 8, the windiest day of the year, the daily average wind speed is 7.5 miles per hour, while on June 26, the calmest day of the year, the daily average wind speed is 3.7 miles per hour.

The lowest daily average wind speed during the summer is 3.7 miles per hour on June 26.

Average Wind Speed in the Summer in Tanaina

Average Wind Speed in the Summer in TanainaJunJulAug0 mph0 mph1 mph1 mph2 mph2 mph3 mph3 mph4 mph4 mph5 mph5 mph6 mph6 mph7 mph7 mph8 mph8 mphSpringFallJun 263.7 mphJun 263.7 mphJun 14.1 mphJun 14.1 mphAug 314.4 mphAug 314.4 mphAug 14.1 mphAug 14.1 mph
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 Tanaina throughout the summer is predominantly from the south, with a peak proportion of 59% on July 2.

Wind Direction in the Summer in Tanaina

Wind Direction in the Summer in TanainaESEJunJulAug0%100%20%80%40%60%60%40%80%20%100%0%SpringFallsoutheastwestnorth
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).

Tanaina 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 surface water temperature in Tanaina is very rapidly increasing during the summer, rising by 11°F, from 40°F to 51°F, over the course of the season.

The highest average surface water temperature during the summer is 52°F on August 16.

Average Water Temperature in the Summer in Tanaina

Average Water Temperature in the Summer in TanainaJunJulAug30°F30°F35°F35°F40°F40°F45°F45°F50°F50°F55°F55°F60°F60°FSpringFallAug 1652°FAug 1652°FJun 140°FJun 140°FAug 3151°FAug 3151°FJul 147°FJul 147°FAug 151°FAug 151°F
The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.

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 Tanaina typically lasts for 4.6 months (141 days), from around May 6 to around September 24, rarely starting before April 17 or after May 24, and rarely ending before September 6 or after October 13.

The summer in Tanaina is very likely fully within the growing season, with the chance that a given day is in the growing season reaching a high of 100% on July 13.

Time Spent in Various Temperature Bands and the Growing Season in the Summer in Tanaina

Time Spent in Various Temperature Bands and the Growing Season in the Summer in Tanainagrowing seasonJunJulAug0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%SpringFall100%Jul 17100%Jul 1750%May 650%May 650%Sep 2450%Sep 2490%May 2490%May 2490%Sep 690%Sep 6very coldcoldcoolcomfortablefreezing
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 Tanaina are rapidly increasing during the summer, increasing by 634°F, from 97°F to 731°F, over the course of the season.

Growing Degree Days in the Summer in Tanaina

Growing Degree Days in the Summer in TanainaJunJulAug100°F100°F200°F200°F300°F300°F400°F400°F500°F500°F600°F600°F700°F700°F800°F800°F900°F900°FSpringFallJun 197°FJun 197°FAug 31731°FAug 31731°FJul 1292°FJul 1292°FAug 1548°FAug 1548°F
The average growing degree days accumulated over the course of the summer, 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 Tanaina is very rapidly decreasing during the summer, falling by 2.5 kWh, from 5.8 kWh to 3.3 kWh, over the course of the season.

The highest average daily incident shortwave solar energy during the summer is 5.8 kWh on June 8.

Average Daily Incident Shortwave Solar Energy in the Summer in Tanaina

Average Daily Incident Shortwave Solar Energy in the Summer in TanainaJunJulAug0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWhSpringFallJun 85.8 kWhJun 85.8 kWhAug 313.3 kWhAug 313.3 kWhJul 15.5 kWhJul 15.5 kWhAug 14.5 kWhAug 14.5 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 Tanaina are 61.627 deg latitude, -149.428 deg longitude, and 495 ft elevation.

The topography within 2 miles of Tanaina contains only modest variations in elevation, with a maximum elevation change of 184 feet and an average elevation above sea level of 479 feet. Within 10 miles contains only modest variations in elevation (4,836 feet). Within 50 miles also contains extreme variations in elevation (10,200 feet).

The area within 2 miles of Tanaina is covered by trees (53%) and artificial surfaces (41%), within 10 miles by trees (44%) and shrubs (22%), and within 50 miles by trees (25%) and shrubs (21%).

This report illustrates the typical weather in Tanaina, 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 Tanaina.

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