March weather forecastSanta Rosa, CA

March
Weather in March
March signifies a subtle shift towards spring in Santa Rosa, California. The highest rainfall can be observed during March, a total of 2.01" (51mm), interspersed over 12.6 days. Despite the increase in rain, temperature trends align with the approach of spring, exhibiting a subtle rise from the February readings. Pressure readings similarly experience a negligible decline. A noticeable increase in daily sunlight hours reflects the waning winter and the advent of spring.Temperature
Santa Rosa experiences a recorded average high-temperature of a still moderate 60.4°F (15.8°C) in March, closely aligned with February's 58.8°F (14.9°C). During the month of March, the nighttime temperature falls to an average of 43.5°F (6.4°C).Humidity
With an average relative humidity of 77%, March is the most humid month in Santa Rosa.Rainfall
In Santa Rosa, California, in March, during 12.6 rainfall days, 2.01" (51mm) of precipitation is typically accumulated. In Santa Rosa, California, during the entire year, the rain falls for 72.8 days and collects up to 12.01" (305mm) of precipitation.Daylight
The average length of the day in March is 11h and 59min.On the first day of March in Santa Rosa, California, sunrise is at 6:41 am and sunset at 6:04 pm PST. On the last day of the month, sunrise is at 6:55 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
In Santa Rosa, the average sunshine in March is 7.5h.UV index
The average daily maximum UV index in March in Santa Rosa is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum high UV index of 4 in March translates into the following recommendations:
Ensure safety - Imperative it is to shield skin and eyes from damage. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in March
Santa Rosa, CA
- Average high temperature in March: 60.4°F
The warmest month (with the highest average high temperature) is August (79.7°F).
The month with the lowest average high temperature is December (55.6°F).
- Average low temperature in March: 43.5°F
The months with the highest average low temperature are August and September (54.7°F).
The coldest month (with the lowest average low temperature) is December (41.9°F).
Average pressure in March
Santa Rosa, CA
- Average pressure in March: 30.06"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.92"Hg).
Average wind speed in March
Santa Rosa, CA
- Average wind speed in March: 6.5mph
The windiest month (with the highest average wind speed) is May (7.1mph).
The calmest month (with the lowest average wind speed) is November (4.9mph).
Average humidity in March
Santa Rosa, CA
- Average humidity in March: 77%
The month with the highest relative humidity is March (77%).
The month with the lowest relative humidity is September (63%).
Average rainfall in March
Santa Rosa, CA
- Average rainfall in March: 2.01"
The wettest month (with the highest rainfall) is February (2.64").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in March
Santa Rosa, CA
- Average rainfall days in March: 12.6 days
The month with the highest number of rainy days is March (12.6 days).
The month with the least rainy days is August (0.8 days).
Average daylight in March /
Average sunshine in March
Santa Rosa, 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 30min).
- Average sunshine in March: 7h and 30min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in March
Santa Rosa, CA
- Average sunshine days in March: 17.1 days
The month with the most sunshine days is July (27.2 days).
The month with the least sunshine days is March (17.1 days).
Average UV index in March
Santa Rosa, CA
- Average UV index in March: 4
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in March
Santa Rosa, CA
- Average cloud cover in March: 39
The month with the most cloud cover is March (Cloud cover 39).
The month with the least cloud cover is July (Cloud cover 9).
Average visibility in March
Santa Rosa, 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).





