Climateby Month

Irvine, CA weather in March

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

Irvine is mild and mostly dry in March: highs average 71°F and nights drop to about 52°F. Expect about 5 wet days. A great month for outdoor plans.

Normal high
71°F
Normal low
52°F
Wet days
5
1.7 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 high70°F72°F
Normal low51°F53°F
Chance of a wet day20%13%
Sunrise / sunset6:19 am / 5:47 pm6:39 am / 7:10 pm
Daylight11.5 h12.5 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 am54°Fdew point 46°F
  2. 9 am60°Fdew point 47°F
  3. Noon64°Fdew point 48°F
  4. 3 pm63°Fdew point 49°F
  5. 6 pm59°Fdew point 49°F
  6. 9 pm58°Fdew point 49°F

NOAA hourly normals (local standard time) from Los Angeles Intl Airport (37 mi away); average wind 8 mph; clear or few clouds in 34% of daytime hours, mostly cloudy or overcast in 40%.

What kind of days to expect

  • Comfortable dayshigh 65-80°F and dew point under 60°F23 of 31
  • Beach dayshigh 80-95°F, under 0.05 in of rain, afternoon wind under 15 mph5 of 31
  • Hot dayshigh 90°F or more1 of 31
  • Muggy daysdaily mean dew point 65°F or more0 of 31
  • Wet daysat least 0.01 in of rain or melted snow5 of 31
  • Notable rainat least 0.10 in3 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 1.7 in; a dry March brings about 0.4 in and a wet one about 2.3 in (25th and 75th percentiles). About 1 day brings half an inch or more.

How March varies from year to year

  • Warmest March, 1991-20202015: average high 80°F
  • Coolest March1999: average high 67°F
  • Wettest March1995: 7.0 in
  • Driest March1997: no measurable precipitation
  • Highest reading97°F (March 8, 2004)
  • Lowest reading38°F (March 1, 2007)

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 high69°F71°F73°F
Normal low50°F52°F54°F
Wet days753
Comfortable days182322
Daylight11.0 h12.0 h13.0 h

Highs change by +2°F from February and +2°F into April.

Nearby alternatives in March

How Irvine ranks in March

  • Normal high84th warmest of 378 cities; 15th of 60 in California
  • Wet days35th driest of 378
  • Comfortable days4th most of 339

Heating and cooling

March has 129 heating degree days and 21 cooling degree days (base 65°F), 7% of the year's total heating and cooling demand.

Questions

How hot is Irvine in March?

The normal high is 71°F and the normal low is 52°F. From 1991 to 2020 the hottest March reading was 97°F (March 8, 2004).

Does it rain a lot in Irvine in March?

About 5 days in March have at least 0.01 in of precipitation, and the normal total is 1.7 in. The wettest March in 1991-2020 was in 1995 (7.0 in); the driest was in 1997, with no measurable precipitation.

Is March a good time to visit Irvine?

March ranks 4th of 12 months on our comfort score for Irvine (79 out of 100). It has about 23 comfortable days and about 1 day at 90°F or hotter. The best month is May.

Where the numbers come from

  • Temperature, rain, snowfall and snow depth: Santa Ana Fire Stn (USC00047888), 5.7 mi NNW of the city center, 135 ft (81 ft higher than the city). NOAA normals and daily records, 1991-2020.
  • Frost dates: Santa Ana John Wayne Airport (USW00093184), 2.6 mi WNW of the city center, 54 ft . NOAA normals and daily records, 1991-2020.
  • Humidity and wind by hour and cloud cover: Los Angeles Intl Airport (USW00023174), 37 mi WNW of the city center, 97 ft . NOAA normals and daily records, 1991-2020.
  • Daily humidity and wind: J. Wayne Apt-Orange Co Apt (722977-93184), 2.6 mi WNW of the city center, 43 ft . Hourly observations, 1991-2020.