Average Weather in February in American Falls Idaho, United States
Daily high temperatures increase by 10°F, from 35°F to 44°F, rarely falling below 22°F or exceeding 56°F.
Daily low temperatures increase by 7°F, from 20°F to 27°F, rarely falling below 4°F or exceeding 37°F.
For reference, on July 31, the hottest day of the year, temperatures in American Falls typically range from 56°F to 89°F, while on December 30, the coldest day of the year, they range from 18°F to 32°F.
Average High and Low Temperature in February
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on February. 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 February
The month of February in American Falls experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 55% throughout the month.
The clearest day of the month is February 15, with clear, mostly clear, or partly cloudy conditions 46% of the time.
For reference, on January 17, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 57%, while on July 26, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 82%.
Cloud Cover Categories in February
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In American Falls, the chance of a wet day over the course of February is gradually increasing, starting the month at 13% and ending it at 15%.
For reference, the year's highest daily chance of a wet day is 20% on May 23, and its lowest chance is 5% on July 5.
Over the course of February in American Falls, the chance of a day with only rain increases from 7% to 11%, the chance of a day with mixed snow and rain remains an essentially constant 3% throughout, and the chance of a day with only snow remains an essentially constant 2% throughout.
Probability of Precipitation in February
The average sliding 31-day rainfall during February in American Falls is essentially constant, remaining about 0.6 inches throughout, and rarely exceeding 1.3 inches.
The lowest average 31-day accumulation is 0.5 inches on February 1.
Average Monthly Rainfall in February
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 February in American Falls is essentially constant, remaining about 0.2 inches throughout, and rarely exceeding 0.5 inches or falling to 0.0 inches.
Average Monthly Liquid-Equivalent Snowfall in February
Over the course of February in American Falls, 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, 12 minutes, implying an average daily increase of 2 minutes, 40 seconds, and weekly increase of 18 minutes, 43 seconds.
The shortest day of the month is February 1, with 9 hours, 59 minutes of daylight and the longest day is February 28, with 11 hours, 11 minutes of daylight.
Hours of Daylight and Twilight in February
The latest sunrise of the month in American Falls is 7:45 AM on February 1 and the earliest sunrise is 37 minutes earlier at 7:08 AM on February 28.
The earliest sunset is 5:44 PM on February 1 and the latest sunset is 35 minutes later at 6:19 PM on February 28.
Daylight saving time is observed in American Falls during 2018, but it neither starts nor ends during February, so the entire month is in standard time.
For reference, on June 21, the longest day of the year, the Sun rises at 5:53 AM and sets 15 hours, 20 minutes later, at 9:13 PM, while on December 21, the shortest day of the year, it rises at 7:58 AM and sets 9 hours, 2 minutes later, at 5:00 PM.
Sunrise & Sunset with Twilight and Daylight Saving Time in February
The chance that a given day will be muggy in American Falls is essentially constant during February, remaining around 0% throughout.
For reference, on July 4, the muggiest day of the year, there are muggy conditions 0% of the time, while on January 1, the least muggy day of the year, there are muggy conditions 0% of the time.
Humidity Comfort Levels in February
The average hourly wind speed in American Falls is gradually increasing during February, increasing from 7.9 miles per hour to 8.8 miles per hour over the course of the month.
For reference, on March 29, the windiest day of the year, the daily average wind speed is 9.4 miles per hour, while on August 4, the calmest day of the year, the daily average wind speed is 7.0 miles per hour.
Average Wind Speed in February
Wind Direction in February
The growing season in American Falls typically lasts for 4.6 months (142 days), from around May 9 to around September 28, rarely starting before April 21 or after May 28, and rarely ending before September 9 or after October 20.
The month of February in American Falls is reliably fully outside of the growing season.
Time Spent in Various Temperature Bands and the Growing Season in February
The average accumulated growing degree days in American Falls are essentially constant during February, remaining within 1°F of 2°F throughout.
Growing Degree Days in February
The average daily incident shortwave solar energy in American Falls is increasing during February, rising by 1.1 kWh, from 2.6 kWh to 3.7 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in February
For the purposes of this report, the geographical coordinates of American Falls are 42.786 deg latitude, -112.854 deg longitude, and 4,400 ft elevation.
The topography within 2 miles of American Falls contains only modest variations in elevation, with a maximum elevation change of 466 feet and an average elevation above sea level of 4,427 feet. Within 10 miles contains only modest variations in elevation (2,644 feet). Within 50 miles contains large variations in elevation (5,207 feet).
The area within 2 miles of American Falls is covered by water (37%), cropland (29%), shrubs (15%), and artificial surfaces (11%), within 10 miles by cropland (54%) and shrubs (28%), and within 50 miles by shrubs (56%) and cropland (23%).
This report illustrates the typical weather in American Falls 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 3 weather stations near enough to contribute to our estimation of the temperature and dew point in American Falls.
For each station, the records are corrected for the elevation difference between that station and American Falls 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 American Falls is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between American Falls and a given station.
The stations contributing to this reconstruction are: Pocatello Regional Airport (72%, 28 kilometers, northeast); Burley Municipal Airport (15%, 79 kilometers, west); and Malad City Airport (14%, 83 kilometers, southeast).
Time zones for aiports and weather stations are provided by AskGeo.com .