Santa Rosa, CA weather in March
Santa Rosa is mild in March, with frequent rain: highs average 66°F and nights drop to about 41°F. Expect about 11 wet days. A good month for most outdoor plans.
- Normal high
- 66°F
- Normal low
- 41°F
- Wet days
- 11
- 5.2 in total
- Muggy days
- 0
- dew point 65°F+
How March changes from start to finish
| March 1 | March 31 | |
|---|---|---|
| Normal high | 64°F | 68°F |
| Normal low | 40°F | 41°F |
| Chance of a wet day | 39% | 32% |
| Sunrise / sunset | 6:42 am / 6:03 pm | 6:57 am / 7:32 pm |
| Daylight | 11.3 h | 12.6 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Pacific Time).
A typical March day
- 6 am46°Fdew point 42°F
- 9 am55°Fdew point 46°F
- Noon62°Fdew point 46°F
- 3 pm64°Fdew point 46°F
- 6 pm59°Fdew point 47°F
- 9 pm52°Fdew point 45°F
NOAA hourly normals (local standard time) from Travis AFB (44 mi away); average wind 10 mph; clear or few clouds in 52% of daytime hours, mostly cloudy or overcast in 38%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F17 of 31
- Hot dayshigh 90°F or more0 of 31
- Muggy daysdaily mean dew point 65°F or more0 of 31
- Wet daysat least 0.01 in of rain or melted snow11 of 31
- Notable rainat least 0.10 in8 of 31
- Freezing nightslow 32°F or below4 of 31
Average days per March, counted from daily records for each year 1991-2020.
Rain in March
Normal precipitation is 5.2 in; a dry March brings about 2.0 in and a wet one about 6.8 in (25th and 75th percentiles). About 4 days bring half an inch or more, and about 1 an inch or more. Snow is very rare.
How March varies from year to year
- Warmest March, 1991-20202004: average high 76°F
- Coolest March2006: average high 58°F
- Wettest March1995: 16.3 in
- Driest March2007: 0.07 in
- Highest reading90°F (March 17, 2004)
- Lowest reading25°F (March 2, 2011)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
March compared with February and April
| February | March | April | |
|---|---|---|---|
| Normal high | 62°F | 66°F | 70°F |
| Normal low | 39°F | 41°F | 42°F |
| Wet days | 12 | 11 | 7 |
| Comfortable days | 12 | 17 | 20 |
| Daylight | 10.8 h | 12.0 h | 13.2 h |
Highs change by +4°F from February and +4°F into April.
Nearby alternatives in March
- Drier: Concord, CA49 mi · high 66°F · 8 wet days
- Cooler: South Lake Tahoe, CA151 mi · high 48°F · 10 wet days
How Santa Rosa ranks in March
- Normal high148th warmest of 378 cities; 46th of 60 in California
- Wet days286th driest of 378
- Comfortable days37th most of 339
What to pack for Santa Rosa in March
- Layers – afternoons near 66°F but nights near 41°F
- A rain jacket or umbrella – rain on about 11 days
Heating and cooling
March has 363 heating degree days and 0 cooling degree days (base 65°F), 11% of the year's total heating and cooling demand.
Questions
How cold is Santa Rosa in March?
The normal high is 66°F and the normal low is 41°F. From 1991 to 2020 the coldest March reading was 25°F (most recently on March 2, 2011).
Does it rain a lot in Santa Rosa in March?
About 11 days in March have at least 0.01 in of precipitation, and the normal total is 5.2 in. The wettest March in 1991-2020 was in 1995 (16.3 in); the driest was in 2007 (0.07 in).
Is March a good time to visit Santa Rosa?
March ranks 4th of 12 months on our comfort score for Santa Rosa (68 out of 100). It has about 17 comfortable days. The best months are April and May.
Where the numbers come from
- Temperature and rain: Graton (USC00043578), 8.2 mi W of the city center, 200 ft . NOAA normals and daily records, 1991-2020.
- Snowfall, snow depth and frost dates: Santa Rosa (USC00047965), 1.1 mi N of the city center, 166 ft . NOAA normals and daily records, 1991-2020.
- Humidity and wind by hour and cloud cover: Travis AFB (USW00023202), 44 mi ESE of the city center, 59 ft (106 ft lower than the city). NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Sonoma County Airport (724957-23213), 6.8 mi NW of the city center, 119 ft . Hourly observations, 1991-2020.