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Riverside, CA vs Seattle, WA weather comparison

Riverside

CA

Riverside endures about 106 more days above 90 °F each year.

Riverside sees rain or snow on roughly 127 fewer days each year. Riverside enjoys about 137 more sunny days a year than Seattle.

The year at a glance

Averages from 30 years of climate history, 1991-2020

Annual weather statistics for Riverside, CA and Seattle, WA
RiversideMetricSeattle
284 daysSunny daysclear or partly cloudy skies147 days
10 inPrecipitationper year37 in
30 daysWet daysrain or snow per year157 days
0 inSnowfallper year6 in
108 daysHot daysabove 90 °F3 days
3 daysFreezing nightsat or below 32 °F28 days
62%Humidityaverage relative78%
67 °FAverage temperatureyear round54 °F

Monthly temperatures

Average daily high and low for each month, in °F. The gap between the two lines is what an ordinary day feels like across the year.

RiversideSeattle

Daily highs

6080100JanMarMayJulSepNovRiverside, Jan: 70 °FRiverside, Feb: 69 °FRiverside, Mar: 73 °FRiverside, Apr: 78 °FRiverside, May: 81 °FRiverside, Jun: 89 °FRiverside, Jul: 95 °FRiverside, Aug: 97 °FRiverside, Sep: 93 °FRiverside, Oct: 84 °FRiverside, Nov: 76 °FRiverside, Dec: 69 °FSeattle, Jan: 48 °FSeattle, Feb: 50 °FSeattle, Mar: 55 °FSeattle, Apr: 59 °FSeattle, May: 66 °FSeattle, Jun: 71 °FSeattle, Jul: 77 °FSeattle, Aug: 77 °FSeattle, Sep: 72 °FSeattle, Oct: 61 °FSeattle, Nov: 53 °FSeattle, Dec: 47 °F

Daily lows

405060JanMarMayJulSepNovRiverside, Jan: 43 °FRiverside, Feb: 44 °FRiverside, Mar: 46 °FRiverside, Apr: 50 °FRiverside, May: 55 °FRiverside, Jun: 59 °FRiverside, Jul: 64 °FRiverside, Aug: 64 °FRiverside, Sep: 62 °FRiverside, Oct: 55 °FRiverside, Nov: 47 °FRiverside, Dec: 42 °FSeattle, Jan: 37 °FSeattle, Feb: 37 °FSeattle, Mar: 39 °FSeattle, Apr: 43 °FSeattle, May: 49 °FSeattle, Jun: 53 °FSeattle, Jul: 57 °FSeattle, Aug: 58 °FSeattle, Sep: 54 °FSeattle, Oct: 47 °FSeattle, Nov: 40 °FSeattle, Dec: 37 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Riverside high706973788189959793847669
Seattle high485055596671777772615347
Riverside low434446505559646462554742
Seattle low373739434953575854474037

Monthly precipitation

Total rain plus melted snow for each month, in inches. Taller bars mean wetter months.

RiversideSeattle
0.02.04.0JanMarMayJulSepNovRiverside, Jan: 2.1 inRiverside, Feb: 2.4 inRiverside, Mar: 1.5 inRiverside, Apr: 0.7 inRiverside, May: 0.3 inRiverside, Jun: 0.1 inRiverside, Jul: 0.0 inRiverside, Aug: 0.0 inRiverside, Sep: 0.1 inRiverside, Oct: 0.5 inRiverside, Nov: 0.7 inRiverside, Dec: 1.5 inSeattle, Jan: 4.9 inSeattle, Feb: 3.4 inSeattle, Mar: 3.9 inSeattle, Apr: 3.2 inSeattle, May: 2.1 inSeattle, Jun: 1.7 inSeattle, Jul: 0.7 inSeattle, Aug: 0.9 inSeattle, Sep: 1.9 inSeattle, Oct: 3.7 inSeattle, Nov: 5.4 inSeattle, Dec: 5.0 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Riverside2.12.41.50.70.30.10.00.00.10.50.71.5
Seattle4.93.43.93.22.11.70.70.91.93.75.45.0

Monthly sunny days

Days each month with clear or partly cloudy skies, so compare the same month between cities.

RiversideSeattle
0102030JanMarMayJulSepNovRiverside, Jan: 19 daysRiverside, Feb: 16 daysRiverside, Mar: 18 daysRiverside, Apr: 21 daysRiverside, May: 24 daysRiverside, Jun: 27 daysRiverside, Jul: 29 daysRiverside, Aug: 30 daysRiverside, Sep: 28 daysRiverside, Oct: 26 daysRiverside, Nov: 24 daysRiverside, Dec: 21 daysSeattle, Jan: 7 daysSeattle, Feb: 10 daysSeattle, Mar: 9 daysSeattle, Apr: 10 daysSeattle, May: 12 daysSeattle, Jun: 13 daysSeattle, Jul: 20 daysSeattle, Aug: 21 daysSeattle, Sep: 18 daysSeattle, Oct: 12 daysSeattle, Nov: 8 daysSeattle, Dec: 7 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Riverside191618212427293028262421
Seattle71091012132021181287

Keep comparing

Nearby cities and popular picks for each side of this matchup. Any two cities can be compared from the home page.

Riverside vs another city

See the full Riverside, CA climate profile

More California cities

Seattle vs another city

See the full Seattle, WA climate profile

More Washington cities

About this data

Every figure on this page is a 30 year average computed from daily climate history for 1991-2020, using each city's own coordinates. Wet days count days with measurable precipitation, calibrated against the wet day counts in NOAA's published climate normals. Sunny days count clear plus partly cloudy days, defined as average cloud cover of 63 percent or less and calibrated against NOAA's published sky cover tables. Snowfall figures are model estimates anchored to NOAA station measurements near each city.

Weather data by Open-Meteo.com (CC BY 4.0). Contains modified Copernicus Climate Change Service information (ERA5, ERA5-Land).