March weather forecastBrentwood, CA

March
Weather in March
March, the first month of the spring in Brentwood, is a comfortable month, with an average temperature fluctuating between 43.9°F (6.6°C) and 63.5°F (17.5°C).Temperature
The unfolding of March shows an average high-temperature of a comfortable 63.5°F (17.5°C), indicating a slight variance from February's 59.7°F (15.4°C). An average low-temperature of 43.9°F (6.6°C) is expected during March.Humidity
In Brentwood, the average relative humidity in March is 73%.Rainfall
In Brentwood, in March, during 12.3 rainfall days, 1.77" (45mm) of precipitation is typically accumulated. Throughout the year, in Brentwood, there are 62 rainfall days, and 10.16" (258mm) of precipitation is accumulated.Snowfall
In Brentwood, California, snow does not fall in January through November.Daylight
In Brentwood, the average length of the day in March is 11h and 59min.On the first day of the month, sunrise is at 6:37 am and sunset at 6:00 pm PST. On the last day of March, in Brentwood, sunrise is at 6:52 am and sunset at 7:29 pm PDT.
Note: On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from PST to PDT. Daylight Saving Time lasts until Sunday, November 3. 2024, at 2:00 am; consequently, the time zone reverts from PDT to PST.
Sunshine
The average sunshine in March in Brentwood is 7.9h.UV index
The average daily maximum UV index in March is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index, 4 in March, converts into the following recommendations:
Ensure safety - Recommendations to avert sunburn are presented. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in March
Brentwood, CA
- Average high temperature in March: 63.5°F
The warmest month (with the highest average high temperature) is July (88.5°F).
The month with the lowest average high temperature is December (55°F).
- Average low temperature in March: 43.9°F
The month with the highest average low temperature is September (57.7°F).
The coldest month (with the lowest average low temperature) is January (41.5°F).
Average pressure in March
Brentwood, CA
- Average pressure in March: 30.07"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in March
Brentwood, CA
- Average wind speed in March: 6mph
The windiest month (with the highest average wind speed) is June (7.8mph).
The calmest months (with the lowest average wind speed) are January and November (4.5mph).
Average humidity in March
Brentwood, CA
- Average humidity in March: 73%
The month with the highest relative humidity is January (74%).
The month with the lowest relative humidity is September (52%).
Average rainfall in March
Brentwood, CA
- Average rainfall in March: 1.77"
The wettest month (with the highest rainfall) is February (2.09").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in March
Brentwood, CA
- Average rainfall days in March: 12.3 days
The month with the highest number of rainy days is March (12.3 days).
The month with the least rainy days is August (0.8 days).
Average snowfall days in March
Brentwood, CA
- Average snowfall days in March: 0 days
The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in March /
Average sunshine in March
Brentwood, CA
- Average daylight in March: 12h and 0min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in March: 7h and 54min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in March
Brentwood, CA
- Average sunshine days in March: 17.7 days
The month with the most sunshine days is August (29.8 days).
The month with the least sunshine days is March (17.7 days).
Average UV index in March
Brentwood, CA
- Average UV index in March: 4
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in March
Brentwood, CA
- Average cloud cover in March: 35
The months with the most cloud cover are March and December (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 5).
Average visibility in March
Brentwood, CA
- Average visibility in March: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





