Climateby Month

Santa Clara, CA weather in March

NOAA 1991-2020 normals and daily records · Santa Clara all year

Santa Clara is cool in March, with some rain: highs average 65°F and nights drop to about 47°F. Expect about 9 wet days. A good month for most outdoor plans.

Normal high
65°F
Normal low
47°F
Wet days
9
2.1 in total
Muggy days
0
dew point 65°F+

How March changes from start to finish

Normal values at the start and end of March
March 1March 31
Normal high64°F66°F
Normal low46°F48°F
Chance of a wet day34%27%
Sunrise / sunset6:38 am / 6:01 pm6:54 am / 7:29 pm
Daylight11.4 h12.6 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

  1. 6 am50°Fdew point 45°F
  2. 9 am54°Fdew point 47°F
  3. Noon59°Fdew point 47°F
  4. 3 pm60°Fdew point 46°F
  5. 6 pm56°Fdew point 46°F
  6. 9 pm53°Fdew point 46°F

NOAA hourly normals (local standard time) from San Francisco Intl Airport (29 mi away); average wind 10 mph; clear or few clouds in 31% of daytime hours, mostly cloudy or overcast in 52%.

What kind of days to expect

  • Comfortable dayshigh 65-80°F and dew point under 60°F16 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 snow9 of 31
  • Notable rainat least 0.10 in5 of 31
  • Freezing nightslow 32°F or below0 of 31

Average days per March, counted from daily records for each year 1991-2020.

Rain in March

Normal precipitation is 2.1 in; a dry March brings about 1.0 in and a wet one about 2.6 in (25th and 75th percentiles). About 1 day brings half an inch or more.

How March varies from year to year

  • Warmest March, 1991-20202004: average high 72°F
  • Coolest March1999: average high 59°F
  • Wettest March2006: 4.5 in
  • Driest March2008: 0.1 in
  • Highest reading84°F (March 26, 2015)
  • Lowest reading35°F (March 10, 2009)

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

FebruaryMarchApril
Normal high62°F65°F68°F
Normal low45°F47°F49°F
Wet days1096
Comfortable days81618
Daylight10.8 h12.0 h13.2 h

Highs change by +3°F from February and +3°F into April.

Nearby alternatives in March

How Santa Clara ranks in March

  • Normal high157th warmest of 378 cities; 49th of 60 in California
  • Wet days202nd driest of 378
  • Comfortable days66th most of 339

What to pack for Santa Clara in March

  • A rain jacket or umbrella – rain on about 9 days

Heating and cooling

March has 285 heating degree days and 1 cooling degree days (base 65°F), 11% of the year's total heating and cooling demand.

Questions

How cold is Santa Clara in March?

The normal high is 65°F and the normal low is 47°F. From 1991 to 2020 the coldest March reading was 35°F (March 10, 2009).

Does it rain a lot in Santa Clara in March?

About 9 days in March have at least 0.01 in of precipitation, and the normal total is 2.1 in. The wettest March in 1991-2020 was in 2006 (4.6 in); the driest was in 2008 (0.2 in).

Is March a good time to visit Santa Clara?

March ranks 8th of 12 months on our comfort score for Santa Clara (69 out of 100). It has about 16 comfortable days. The best months are May, June and July.

Where the numbers come from

  • Temperature: Moffett Federal Airfield (USW00023244), 6.2 mi NW of the city center, 39 ft . NOAA normals and daily records, 1991-2020.
  • Rain and frost dates: San Jose (USW00023293), 1.8 mi ENE of the city center, 51 ft . NOAA normals and daily records, 1991-2020.
  • Snowfall and snow depth: San Jose (USC00047821), 2.9 mi E of the city center, 67 ft . NOAA normals and daily records, 1991-2020.
  • Humidity and wind by hour and cloud cover: San Francisco Intl Airport (USW00023234), 29 mi NW of the city center, 8 ft (64 ft lower than the city). NOAA normals and daily records, 1991-2020.
  • Daily humidity and wind: N Y. Mineta Sn Jo Intl Apt (724945-23293), 1.8 mi E of the city center, 49 ft . Hourly observations, 1991-2020.