Average Weather in February in Johnstonville California, United States
Daily low temperatures increase by 4°F, from 28°F to 31°F, rarely falling below 18°F or exceeding 39°F.
For reference, on August 3, the hottest day of the year, temperatures in Johnstonville typically range from 56°F to 87°F, while on January 1, the coldest day of the year, they range from 25°F to 41°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 Johnstonville experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 56% throughout the month.
The clearest day of the month is February 1, with clear, mostly clear, or partly cloudy conditions 44% of the time.
For reference, on January 10, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 57%, while on July 28, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 89%.
Cloud Cover Categories in February
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Johnstonville, the chance of a wet day over the course of February is increasing, starting the month at 28% and ending it at 32%.
For reference, the year's highest daily chance of a wet day is 32% on February 28, and its lowest chance is 2% on August 23.
Over the course of February in Johnstonville, the chance of a day with only rain increases from 20% to 26%, the chance of a day with mixed snow and rain remains an essentially constant 5% 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 Johnstonville is gradually increasing, starting the month at 2.8 inches, when it rarely exceeds 5.7 inches or falls below 0.6 inches, and ending the month at 3.1 inches, when it rarely exceeds 6.4 inches or falls below 0.6 inches.
The highest average 31-day accumulation is 3.2 inches on February 19.
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 Johnstonville is essentially constant, remaining about 0.2 inches throughout, and rarely exceeding 0.8 inches or falling to 0.0 inches.
Average Monthly Liquid-Equivalent Snowfall in February
Over the course of February in Johnstonville, 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, 27 seconds, and weekly increase of 17 minutes, 10 seconds.
The shortest day of the month is February 1, with 10 hours, 10 minutes of daylight and the longest day is February 28, with 11 hours, 16 minutes of daylight.
Hours of Daylight and Twilight in February
The latest sunrise of the month in Johnstonville is 7:11 AM on February 1 and the earliest sunrise is 34 minutes earlier at 6:36 AM on February 28.
The earliest sunset is 5:21 PM on February 1 and the latest sunset is 32 minutes later at 5:53 PM on February 28.
Daylight saving time is observed in Johnstonville during 2017, 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 5:32 AM and sets 15 hours, 4 minutes later, at 8:36 PM, while on December 21, the shortest day of the year, it rises at 7:22 AM and sets 9 hours, 17 minutes later, at 4:39 PM.
Sunrise & Sunset with Twilight and Daylight Saving Time in February
The chance that a given day will be muggy in Johnstonville is essentially constant during February, remaining around 0% throughout.
Humidity Comfort Levels in February
The average hourly wind speed in Johnstonville is gradually increasing during February, increasing from 5.7 miles per hour to 6.3 miles per hour over the course of the month.
For reference, on April 5, the windiest day of the year, the daily average wind speed is 6.5 miles per hour, while on August 6, the calmest day of the year, the daily average wind speed is 5.1 miles per hour.
Average Wind Speed in February
Wind Direction in February
The growing season in Johnstonville typically lasts for 5.5 months (170 days), from around May 3 to around October 20, rarely starting before April 14 or after May 25, and rarely ending before September 30 or after November 8.
The month of February in Johnstonville 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 Johnstonville are essentially constant during February, remaining within 5°F of 6°F throughout.
Growing Degree Days in February
The average daily incident shortwave solar energy in Johnstonville is increasing during February, rising by 1.0 kWh, from 2.9 kWh to 3.9 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 Johnstonville are 40.384 deg latitude, -120.587 deg longitude, and 4,160 ft elevation.
The topography within 2 miles of Johnstonville contains significant variations in elevation, with a maximum elevation change of 509 feet and an average elevation above sea level of 4,160 feet. Within 10 miles contains significant variations in elevation (3,753 feet). Within 50 miles also contains extreme variations in elevation (8,560 feet).
The area within 2 miles of Johnstonville is covered by shrubs (43%), cropland (42%), and grassland (15%), within 10 miles by shrubs (54%) and trees (31%), and within 50 miles by shrubs (52%) and trees (40%).
This report illustrates the typical weather in Johnstonville 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 5 weather stations near enough to contribute to our estimation of the temperature and dew point in Johnstonville.
For each station, the records are corrected for the elevation difference between that station and Johnstonville 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 Johnstonville is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Johnstonville and a given station.
The stations contributing to this reconstruction are: Reno Stead Airport (29%, 100 kilometers, southeast); Alturas Municipal Airport (23%, 123 kilometers, north); Blue Canyon-Nyack Airport (21%, 124 kilometers, south); Chico Municipal Airport (14%, 126 kilometers, southwest); and Redding Municipal Airport (13%, 146 kilometers, west).
Time zones for aiports and weather stations are provided by AskGeo.com .