Average Weather in March in Janesville California, United States
Daily high temperatures increase by 7°F, from 49°F to 56°F, rarely falling below 39°F or exceeding 69°F.
Daily low temperatures increase by 3°F, from 31°F to 34°F, rarely falling below 23°F or exceeding 42°F.
For reference, on July 29, the hottest day of the year, temperatures in Janesville typically range from 56°F to 86°F, while on December 31, the coldest day of the year, they range from 25°F to 40°F.
Average High and Low Temperature in March
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
Navacerrada, Spain (5,572 miles away); Yeşilova, Turkey (6,749 miles); and Aydıncık, Turkey (6,683 miles) are the far-away foreign places with temperatures most similar to Janesville (view comparison).
The month of March in Janesville experiences gradually decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 57% to 50%. The highest chance of overcast or mostly cloudy conditions is 57% on March 1.
The clearest day of the month is March 31, with clear, mostly clear, or partly cloudy conditions 50% 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 March
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Janesville, the chance of a wet day over the course of March is very rapidly decreasing, starting the month at 32% and ending it at 20%.
For reference, the year's highest daily chance of a wet day is 32% on February 28, and its lowest chance is 2% on July 20.
Over the course of March in Janesville, the chance of a day with only rain decreases from 25% to 17%, the chance of a day with mixed snow and rain decreases from 5% to 3%, and the chance of a day with only snow remains an essentially constant 1% throughout.
Probability of Precipitation in March
The average sliding 31-day rainfall during March in Janesville is rapidly decreasing, starting the month at 3.2 inches, when it rarely exceeds 6.6 inches or falls below 0.6 inches, and ending the month at 1.8 inches, when it rarely exceeds 4.2 inches or falls below 0.3 inches.
Average Monthly Rainfall in March
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 Janesville is essentially constant, remaining about 0.2 inches throughout, and rarely exceeding 0.7 inches or falling to 0.0 inches.
Average Monthly Liquid-Equivalent Snowfall in March
Over the course of March in Janesville, 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, 20 minutes, implying an average daily increase of 2 minutes, 40 seconds, and weekly increase of 18 minutes, 41 seconds.
The shortest day of the month is March 1, with 11 hours, 18 minutes of daylight and the longest day is March 31, with 12 hours, 38 minutes of daylight.
Hours of Daylight and Twilight in March
The earliest sunrise of the month in Janesville is 6:21 AM on March 10 and the latest sunrise is 58 minutes later at 7:19 AM on March 11.
The earliest sunset is 5:53 PM on March 1 and the latest sunset is 1 hour, 32 minutes later at 7:25 PM on March 31.
Daylight saving time (DST) starts at 3:00 AM on March 11, 2018, shifting sunrise and sunset to be an hour later.
For reference, on June 21, the longest day of the year, the Sun rises at 5:32 AM and sets 15 hours, 3 minutes later, at 8:35 PM, while on December 21, the shortest day of the year, it rises at 7:21 AM and sets 9 hours, 18 minutes later, at 4:39 PM.
Sunrise & Sunset with Twilight and Daylight Saving Time in March
The chance that a given day will be muggy in Janesville is essentially constant during March, remaining around 0% throughout.
Humidity Comfort Levels in March
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed in Janesville is essentially constant during March, remaining within 0.2 miles per hour of 6.2 miles per hour throughout.
For reference, on April 5, the windiest day of the year, the daily average wind speed is 6.4 miles per hour, while on August 6, the calmest day of the year, the daily average wind speed is 5.0 miles per hour.
Average Wind Speed in March
Wind Direction in March
The growing season in Janesville typically lasts for 5.5 months (170 days), from around May 2 to around October 20, rarely starting before April 13 or after May 24, and rarely ending before September 28 or after November 8.
The month of March in Janesville is reliably fully outside of the growing season.
Time Spent in Various Temperature Bands and the Growing Season in March
The average accumulated growing degree days in Janesville are gradually increasing during March, increasing by 37°F, from 10°F to 47°F, over the course of the month.
Growing Degree Days in March
The average daily incident shortwave solar energy in Janesville is rapidly increasing during March, rising by 1.6 kWh, from 4.0 kWh to 5.6 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in March
For the purposes of this report, the geographical coordinates of Janesville are 40.297 deg latitude, -120.524 deg longitude, and 4,344 ft elevation.
The topography within 2 miles of Janesville contains very significant variations in elevation, with a maximum elevation change of 1,542 feet and an average elevation above sea level of 4,389 feet. Within 10 miles contains very significant variations in elevation (3,770 feet). Within 50 miles also contains extreme variations in elevation (6,949 feet).
The area within 2 miles of Janesville is covered by shrubs (61%), grassland (24%), and trees (12%), within 10 miles by shrubs (39%) and trees (34%), and within 50 miles by shrubs (52%) and trees (40%).
This report illustrates the typical weather in Janesville 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 6 weather stations near enough to contribute to our estimation of the temperature and dew point in Janesville.
For each station, the records are corrected for the elevation difference between that station and Janesville 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 Janesville is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Janesville and a given station.
The stations contributing to this reconstruction are: Reno Stead Airport (30%, 89 kilometers, southeast); Blue Canyon-Nyack Airport (21%, 115 kilometers, south); Chico Municipal Airport (11%, 126 kilometers, southwest); Oroville Municipal Airport (11%, 130 kilometers, southwest); Alturas Municipal Airport (17%, 133 kilometers, north); and Redding Municipal Airport (10%, 152 kilometers, west).
Time zones for aiports and weather stations are provided by AskGeo.com .