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Average Weather in March in Walden Tennessee, United States

Daily low temperatures increase by 8°F, from 36°F to 43°F, rarely falling below 23°F or exceeding 56°F.

For reference, on July 22, 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 March

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 March. 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 March

Average Hourly Temperature in March in Walden18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM4 AM8 AM12 PM4 PM8 PM12 AMFebAprvery coldcoldcoolcomfortablecoolfreezing
The average hourly temperature, color coded into bands: 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 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).

Clouds

The month of March in Walden experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 51% throughout the month.

The clearest day of the month is March 31, with clear, mostly clear, or partly cloudy conditions 51% 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 20, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 67%.

Cloud Cover Categories in March

Cloud Cover Categories in March in Walden1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%FebAprMar 148%Mar 148%Mar 3151%Mar 3151%Mar 1150%Mar 1150%Mar 2150%Mar 2150%clearmostly clearpartly cloudymostly cloudyovercast
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds: clear < 20% < mostly clear < 40% < partly cloudy < 60% < mostly cloudy < 80% < overcast.

Precipitation

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 March is essentially constant, remaining around 31% throughout.

For reference, the year's highest daily chance of a wet day is 44% on July 9, and its lowest chance is 21% on October 16.

Over the course of March in Walden, the chance of a day with only rain increases from 29% to 32%, the chance of a day with mixed snow and rain remains an essentially constant 1% throughout, and the chance of a day with only snow remains an essentially constant 0% throughout.

Probability of Precipitation in March

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 March in Walden is essentially constant, remaining about 4.4 inches throughout, and rarely exceeding 7.6 inches or falling below 1.9 inches.

The highest average 31-day accumulation is 4.5 inches on March 17.

Average Monthly Rainfall in March

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 liquid-equivalent snowfall.

Snowfall

We report snowfall in liquid-equivalent terms. The actual depth of new snowfall is typically between 5 and 10 times the liquid-equivalent amount, assuming the ground is frozen. As with rainfall, we consider the liquid-equivalent snowfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day liquid-equivalent snowfall during March in Walden is essentially constant, remaining about 0.1 inches throughout, and rarely exceeding 0.8 inches or falling below -0.0 inches.

Average Monthly Liquid-Equivalent Snowfall in March

The average liquid-equivalent 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.

Sun

Over the course of March in Walden, the length of the day is rapidly increasing. From the start to the end of the month, the length of the day increases by 1 hour, 6 minutes, implying an average daily increase of 2 minutes, 13 seconds, and weekly increase of 15 minutes, 31 seconds.

The shortest day of the month is March 1, with 11 hours, 27 minutes of daylight and the longest day is March 31, with 12 hours, 33 minutes of daylight.

Hours of Daylight and Twilight in March

Hours of Daylight and Twilight in March in Walden1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrFebAprMar 2012 hr, 6 minMar 2012 hr, 6 minnightnightdaydayMar 111 hr, 27 minMar 111 hr, 27 min
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 6:57 AM on March 11 and the latest sunrise is 59 minutes later at 7:55 AM on March 12.

The earliest sunset is 6:36 PM on March 1 and the latest sunset is 1 hour, 25 minutes later at 8:02 PM on March 31.

Daylight saving time (DST) starts at 3:00 AM on March 12, 2017, shifting sunrise and sunset to be an hour later.

For reference, on June 21, 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 7:45 AM and sets 9 hours, 47 minutes later, at 5:33 PM.

Sunrise & Sunset with Twilight and Daylight Saving Time in March

The solar day over the course of March. 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.

Humidity

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 essentially constant during March, remaining around 0% throughout.

For reference, on July 24, the muggiest day of the year, there are muggy conditions 82% of the time, while on December 18, the least muggy day of the year, there are muggy conditions 0% of the time.

Humidity Comfort Levels in March

The percentage of time spent at various humidity comfort levels, categorized by dew point: dry < 55°F < comfortable < 60°F < humid < 65°F < muggy < 70°F < oppressive < 75°F < miserable.

Wind

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 March, remaining within 0.1 miles per hour of 5.5 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 August 1, the calmest day of the year, the daily average wind speed is 3.2 miles per hour.

Average Wind Speed in March

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 March is predominantly from the south, with a peak proportion of 38% on March 31.

Wind Direction in March

Wind Direction in March in WaldenSNS1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%FebAprwestsouthnortheast
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions (north, east, south, and west), excluding hours in which the mean wind speed is less than 1 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Growing Season

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 7 to around October 28, rarely starting before March 16 or after April 26, and rarely ending before October 9 or after November 15.

The month of March in Walden is more likely than not fully outside of the growing season, with the chance that a given day is in the growing season rapidly increasing from 2% to 34% over the course of the month.

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

Time Spent in Various Temperature Bands and the Growing Season in March in Walden1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%FebAprMar 12%Mar 12%Mar 3134%Mar 3134%Mar 116%Mar 116%Mar 2117%Mar 2117%50%Apr 750%Apr 790%Apr 2690%Apr 26freezingvery coldcoldcoolcomfortablewarmfrigid
The percentage of time spent in various temperature bands: 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 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 gradually increasing during March, increasing by 123°F, from 63°F to 186°F, over the course of the month.

Growing Degree Days in March

The average growing degree days accumulated over the course of March, with 25th to 75th and 10th to 90th percentile bands.

Solar Energy

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 increasing during March, rising by 1.2 kWh, from 4.0 kWh to 5.2 kWh, over the course of the month.

Average Daily Incident Shortwave Solar Energy in March

The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.

Topography

For the purposes of this report, the geographical coordinates of Walden are 35.165 deg latitude, -85.301 deg longitude, and 1,660 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%).

Data Sources

This report illustrates the typical weather in Walden year round, 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: Lovell Field (55%, 17 kilometers, southeast); Winchester Municipal Airport (18%, 70 kilometers, west); Scottsboro Municipal Airport Word Field (14%, 83 kilometers, southwest); and Crossville Memorial Airport (13%, 90 kilometers, north).

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Tables of the Sun, Moon and Planets , 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 aiports and weather stations are provided by AskGeo.com .

Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.

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.