March weather forecastO'Brien, CA
March
Weather in March
March, the first month of the spring in O'Brien, is still a cool month, with an average temperature fluctuating between 37°F (2.8°C) and 54.1°F (12.3°C).Temperature
As March unfolds, the average high-temperature reaches a still cool 54.1°F (12.3°C), hinting at a slight fluctuation from the previous month. During the month of March, O'Brien anticipates a mean low-temperature of 37°F (2.8°C).Humidity
The most humid month is March, with an average relative humidity of 77%.Rainfall
March is the month with the most rainfall. Rain falls for 16.8 days and accumulates 4.8" (122mm) of precipitation.Snowfall
Months with snowfall are January through March, November and December. March is the last month it regularly snows. During 0.8 snowfall days, in March, O'Brien aggregates 0.79" (20mm) of snow. Throughout the year, there are 4.6 snowfall days, and 4.45" (113mm) of snow is accumulated.Daylight
The average length of the day in March is 11h and 59min.On the first day of March, sunrise is at 6:41 am and sunset at 6:01 pm PST. On the last day of the month, sunrise is at 6:52 am and sunset at 7:33 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 is 7.1h.UV index
The average daily maximum UV index in March is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: In March, the maximum UV index of 3 suggests this advice:
Exercise prevention - Precautions against solar damage are endorsed. Direct Sun exposure should be minimized especially during midday when radiation is most intense. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in March
O'Brien, CA
- Average high temperature in March: 54.1°F
The warmest month (with the highest average high temperature) is July (91.6°F).
The month with the lowest average high temperature is December (47.8°F).
- Average low temperature in March: 37°F
The month with the highest average low temperature is July (59.4°F).
The coldest month (with the lowest average low temperature) is December (33.6°F).
Average pressure in March
O'Brien, CA
- Average pressure in March: 30.06"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is August (29.92"Hg).
Average wind speed in March
O'Brien, CA
- Average wind speed in March: 5.3mph
The windiest months (with the highest average wind speed) are March and October (5.3mph).
The calmest months (with the lowest average wind speed) are August and November (4.5mph).
Average humidity in March
O'Brien, CA
- Average humidity in March: 77%
The month with the highest relative humidity is March (77%).
The month with the lowest relative humidity is August (37%).
Average rainfall in March
O'Brien, CA
- Average rainfall in March: 4.8"
The wettest month (with the highest rainfall) is March (4.8").
The driest month (with the least rainfall) is July (0.12").
Average rainfall days in March
O'Brien, CA
- Average rainfall days in March: 16.8 days
The month with the highest number of rainy days is March (16.8 days).
The month with the least rainy days is August (1.7 days).
Average snowfall in March
O'Brien, CA
- Average snowfall in March: 0.79"
The month with the highest snowfall is November (1.3").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in March
O'Brien, CA
- Average snowfall days in March: 0.8 days
The month with the highest number of snowfall days is February (1.9 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in March /
Average sunshine in March
O'Brien, CA
- Average daylight in March: 12h and 0min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in March: 7h and 6min
The month with the most sunshine is July (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in March
O'Brien, CA
- Average sunshine days in March: 11.8 days
The month with the most sunshine days is August (27.1 days).
The month with the least sunshine days is March (11.8 days).
Average UV index in March
O'Brien, CA
- Average UV index in March: 3
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are February, November and December (UV index 2).
Average cloud cover in March
O'Brien, CA
- Average cloud cover in March: 44
The month with the most cloud cover is March (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in March
O'Brien, CA
- Average visibility in March: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is December (5mi).





