Climateby Month

Fairfield, CA weather in March

NOAA 1991-2020 normals and daily records · Fairfield all year

In March, Fairfield sees highs around 66°F and lows around 45°F: mild, with some rain. There are about 9 days with rain. Good for outdoor plans.

Normal high
66°F
Normal low
45°F
Wet days
9
3.3 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°F68°F
Normal low44°F46°F
Chance of a wet day34%25%
Sunrise / sunset6:39 am / 6:01 pm6:54 am / 7:30 pm
Daylight11.3 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 am46°Fdew point 42°F
  2. 9 am55°Fdew point 46°F
  3. Noon62°Fdew point 46°F
  4. 3 pm64°Fdew point 46°F
  5. 6 pm59°Fdew point 47°F
  6. 9 pm52°Fdew point 45°F

NOAA hourly normals (local standard time) from Travis AFB (6 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 snow9 of 31
  • Notable rainat least 0.10 in7 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 3.3 in; a dry March brings about 1.4 in and a wet one about 4.7 in (25th and 75th percentiles). About 3 days bring half an inch or more, and about 1 an inch or more.

How March varies from year to year

  • Warmest March, 1991-20202004: average high 76°F
  • Coolest March1991: average high 59°F
  • Wettest March1995: 9.2 in
  • Driest March2007: 0.1 in
  • Highest reading87°F (March 16, 2004)
  • Lowest reading29°F (March 27, 2010)

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°F66°F71°F
Normal low43°F45°F48°F
Wet days1095
Comfortable days101719
Daylight10.8 h12.0 h13.2 h

Highs change by +4°F from February and +5°F into April.

Nearby alternatives in March

How Fairfield ranks in March

  • Normal high141st warmest of 378 cities; 40th of 60 in California
  • Wet days204th driest of 378
  • Comfortable days46th most of 339

What to pack for Fairfield in March

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

Heating and cooling

March has 284 heating degree days and 2 cooling degree days (base 65°F), 8% of the year's total heating and cooling demand.

Questions

How cold is Fairfield in March?

The normal high is 66°F and the normal low is 45°F. From 1991 to 2020 the coldest March reading was 29°F (March 27, 2010).

Does it rain a lot in Fairfield in March?

About 9 days in March have at least 0.01 in of precipitation, and the normal total is 3.3 in. The wettest March in 1991-2020 was in 1995 (9.2 in); the driest was in 2007 (0.1 in).

Is March a good time to visit Fairfield?

March ranks 4th of 12 months on our comfort score for Fairfield (68 out of 100). It has about 17 comfortable days. The best months are April and May.

Where the numbers come from

  • Temperature, rain, snowfall, snow depth and frost dates: Fairfield (USC00042934), 2.3 mi NW of the city center, 40 ft . NOAA normals and daily records, 1991-2020.
  • Humidity and wind by hour and cloud cover: Travis AFB (USW00023202), 5.9 mi ENE of the city center, 59 ft . NOAA normals and daily records, 1991-2020.
  • Daily humidity and wind: Travis Air Force Base (745160-23202), 5.9 mi ENE of the city center, 62 ft . Hourly observations, 1991-2020.