Average Weather in March in Arnold California, United States
Daily high temperatures increase by 5°F, from 52°F to 57°F, rarely falling below 42°F or exceeding 67°F.
Daily low temperatures increase by 3°F, from 34°F to 37°F, rarely falling below 25°F or exceeding 44°F.
For reference, on July 28, the hottest day of the year, temperatures in Arnold typically range from 55°F to 84°F, while on December 25, the coldest day of the year, they range from 30°F to 47°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
The month of March in Arnold experiences gradually decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 56% to 49%.
The clearest day of the month is March 31, with clear, mostly clear, or partly cloudy conditions 51% of the time.
For reference, on February 21, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 57%, while on July 29, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 90%.
Cloud Cover Categories in March
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Arnold, the chance of a wet day over the course of March is very rapidly decreasing, starting the month at 31% and ending it at 22%.
For reference, the year's highest daily chance of a wet day is 33% on February 21, and its lowest chance is 1% on August 18.
Over the course of March in Arnold, the chance of a day with only rain decreases from 25% to 17%, the chance of a day with mixed snow and rain remains an essentially constant 6% throughout, 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 Arnold is rapidly decreasing, starting the month at 4.2 inches, when it rarely exceeds 8.7 inches or falls below 0.9 inches, and ending the month at 2.5 inches, when it rarely exceeds 5.7 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 Arnold is essentially constant, remaining about 0.2 inches throughout, and rarely exceeding 0.8 inches or falling below -0.0 inches.
Average Monthly Liquid-Equivalent Snowfall in March
Over the course of March in Arnold, 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, 14 minutes, implying an average daily increase of 2 minutes, 29 seconds, and weekly increase of 17 minutes, 22 seconds.
The shortest day of the month is March 1, with 11 hours, 22 minutes of daylight and the longest day is March 31, with 12 hours, 36 minutes of daylight.
Hours of Daylight and Twilight in March
The earliest sunrise of the month in Arnold is 6:19 AM on March 10 and the latest sunrise is 59 minutes later at 7:18 AM on March 11.
The earliest sunset is 5:54 PM on March 1 and the latest sunset is 1 hour, 29 minutes later at 7:23 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 5:38 AM and sets 14 hours, 50 minutes later, at 8:28 PM, while on December 21, the shortest day of the year, it rises at 7:14 AM and sets 9 hours, 30 minutes later, at 4:44 PM.
Sunrise & Sunset with Twilight and Daylight Saving Time in March
The chance that a given day will be muggy in Arnold is essentially constant during March, remaining around 0% throughout.
Humidity Comfort Levels in March
The average hourly wind speed in Arnold is essentially constant during March, remaining within 0.2 miles per hour of 5.5 miles per hour throughout.
For reference, on December 22, the windiest day of the year, the daily average wind speed is 5.8 miles per hour, while on September 24, 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 Arnold typically lasts for 6.2 months (191 days), from around April 22 to around October 30, rarely starting before March 26 or after May 20, and rarely ending before October 5 or after November 22.
The month of March in Arnold is more likely than not fully outside of the growing season, with the chance that a given day is in the growing season increasing from 1% to 13% over the course of the month.
Time Spent in Various Temperature Bands and the Growing Season in March
The average accumulated growing degree days in Arnold are gradually increasing during March, increasing by 48°F, from 29°F to 76°F, over the course of the month.
Growing Degree Days in March
The average daily incident shortwave solar energy in Arnold is rapidly increasing during March, rising by 1.6 kWh, from 4.0 kWh to 5.7 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 Arnold are 38.255 deg latitude, -120.351 deg longitude, and 4,045 ft elevation.
The topography within 2 miles of Arnold contains very significant variations in elevation, with a maximum elevation change of 1,204 feet and an average elevation above sea level of 4,042 feet. Within 10 miles contains very significant variations in elevation (5,289 feet). Within 50 miles also contains extreme variations in elevation (11,598 feet).
The area within 2 miles of Arnold is covered by trees (100%), within 10 miles by trees (65%) and shrubs (34%), and within 50 miles by trees (34%) and shrubs (31%).
This report illustrates the typical weather in Arnold 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 Arnold.
For each station, the records are corrected for the elevation difference between that station and Arnold 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 Arnold is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Arnold and a given station.
The stations contributing to this reconstruction are: Placerville Airport (34%, 62 kilometers, northwest); Bridgeport Sonora Junction (20%, 74 kilometers, east); Lake Tahoe Airport (21%, 78 kilometers, northeast); Stockton Metropolitan Airport (12%, 87 kilometers, southwest); and Modesto City-County Airport (12%, 88 kilometers, southwest).
Time zones for aiports and weather stations are provided by AskGeo.com .