Climateby Month

Riverside, CA weather in March

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

March in Riverside: mild and mostly dry. Highs 72°F, lows 47°F, rain on about 5 days. A great month for outdoor plans.

Normal high
72°F
Normal low
47°F
Wet days
5
1.6 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°F74°F
Normal low46°F48°F
Chance of a wet day19%12%
Sunrise / sunset6:18 am / 5:45 pm6:38 am / 7:09 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 am45°Fdew point 41°F
  2. 9 am57°Fdew point 43°F
  3. Noon66°Fdew point 39°F
  4. 3 pm68°Fdew point 40°F
  5. 6 pm61°Fdew point 42°F
  6. 9 pm53°Fdew point 43°F

NOAA hourly normals (local standard time) from March AFB (9 mi away); average wind 5 mph; clear or few clouds in 56% of daytime hours, mostly cloudy or overcast in 36%.

What kind of days to expect

  • Comfortable dayshigh 65-80°F and dew point under 60°F18 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 1.6 in; a dry March brings about 0.3 in and a wet one about 2.1 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 82°F
  • Coolest March2006: average high 64°F
  • Wettest March1991: 5.7 in
  • Driest March1997: no measurable precipitation
  • Highest reading97°F (March 31, 2011)
  • Lowest reading30°F (March 4, 2002)

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 high68°F72°F76°F
Normal low45°F47°F50°F
Wet days652
Comfortable days131817
Daylight11.0 h12.0 h13.0 h

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

Nearby alternatives in March

How Riverside ranks in March

  • Normal high65th warmest of 378 cities; 6th of 60 in California
  • Wet days27th driest of 378
  • Comfortable days26th most of 339

What to pack for Riverside in March

  • Layers – afternoons near 72°F but nights near 47°F

Heating and cooling

March has 189 heating degree days and 18 cooling degree days (base 65°F), 6% of the year's total heating and cooling demand.

Questions

How hot is Riverside in March?

The normal high is 72°F and the normal low is 47°F. From 1991 to 2020 the hottest March reading was 97°F (March 31, 2011).

Does it rain a lot in Riverside in March?

About 5 days in March have at least 0.01 in of precipitation, and the normal total is 1.6 in. The wettest March in 1991-2020 was in 1991 (5.7 in); the driest was in 1997, with no measurable precipitation.

Is March a good time to visit Riverside?

March ranks 3rd of 12 months on our comfort score for Riverside (72 out of 100). It has about 18 comfortable days and about 1 day at 90°F or hotter. The best months are March, April and May.

Where the numbers come from

  • Temperature and frost dates: Riverside Muni Airport (USW00003171), 2.4 mi W of the city center, 805 ft . NOAA normals and daily records, 1991-2020.
  • Rain, snowfall and snow depth: Riverside Fire Stn 3 (USC00047470), 0.5 mi ESE of the city center, 840 ft . NOAA normals and daily records, 1991-2020.
  • Humidity and wind by hour and cloud cover: March AFB (USW00023119), 9.2 mi ESE of the city center, 1,516 ft (687 ft higher than the city). NOAA normals and daily records, 1991-2020.
  • Daily humidity and wind: March Air Reserve Base (722860-23119), 9.2 mi ESE of the city center, 1,536 ft (707 ft higher than the city). Hourly observations, 1991-2020.