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San Bernardino, CA vs San Diego, CA weather comparison

San Bernardino

CA

San Bernardino picks up around 14 more inches of snow each winter.

San Bernardino endures about 90 more days above 90 °F each year.

The year at a glance

Averages from 30 years of climate history, 1991-2020

Annual weather statistics for San Bernardino, CA and San Diego, CA
San BernardinoMetricSan Diego
296 daysSunny daysclear or partly cloudy skies283 days
12 inPrecipitationper year12 in
42 daysWet daysrain or snow per year38 days
14 inSnowfallper year0 in
106 daysHot daysabove 90 °F15 days
3 daysFreezing nightsat or below 32 °F0 days
55%Humidityaverage relative74%
66 °FAverage temperatureyear round64 °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.

San BernardinoSan Diego

Daily highs

708090JanMarMayJulSepNovSan Bernardino, Jan: 68 °FSan Bernardino, Feb: 69 °FSan Bernardino, Mar: 72 °FSan Bernardino, Apr: 76 °FSan Bernardino, May: 81 °FSan Bernardino, Jun: 88 °FSan Bernardino, Jul: 95 °FSan Bernardino, Aug: 96 °FSan Bernardino, Sep: 93 °FSan Bernardino, Oct: 83 °FSan Bernardino, Nov: 76 °FSan Bernardino, Dec: 68 °FSan Diego, Jan: 67 °FSan Diego, Feb: 67 °FSan Diego, Mar: 69 °FSan Diego, Apr: 71 °FSan Diego, May: 72 °FSan Diego, Jun: 75 °FSan Diego, Jul: 80 °FSan Diego, Aug: 82 °FSan Diego, Sep: 81 °FSan Diego, Oct: 78 °FSan Diego, Nov: 73 °FSan Diego, Dec: 67 °F

Daily lows

405060JanMarMayJulSepNovSan Bernardino, Jan: 42 °FSan Bernardino, Feb: 43 °FSan Bernardino, Mar: 46 °FSan Bernardino, Apr: 49 °FSan Bernardino, May: 54 °FSan Bernardino, Jun: 58 °FSan Bernardino, Jul: 63 °FSan Bernardino, Aug: 64 °FSan Bernardino, Sep: 60 °FSan Bernardino, Oct: 54 °FSan Bernardino, Nov: 46 °FSan Bernardino, Dec: 41 °FSan Diego, Jan: 46 °FSan Diego, Feb: 47 °FSan Diego, Mar: 50 °FSan Diego, Apr: 53 °FSan Diego, May: 57 °FSan Diego, Jun: 60 °FSan Diego, Jul: 64 °FSan Diego, Aug: 65 °FSan Diego, Sep: 64 °FSan Diego, Oct: 58 °FSan Diego, Nov: 50 °FSan Diego, Dec: 45 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
San Bernardino high686972768188959693837668
San Diego high676769717275808281787367
San Bernardino low424346495458636460544641
San Diego low464750535760646564585045

Monthly precipitation

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

San BernardinoSan Diego
0.01.02.03.0JanMarMayJulSepNovSan Bernardino, Jan: 2.2 inSan Bernardino, Feb: 2.7 inSan Bernardino, Mar: 1.6 inSan Bernardino, Apr: 0.8 inSan Bernardino, May: 0.3 inSan Bernardino, Jun: 0.1 inSan Bernardino, Jul: 0.5 inSan Bernardino, Aug: 0.4 inSan Bernardino, Sep: 0.3 inSan Bernardino, Oct: 0.5 inSan Bernardino, Nov: 0.7 inSan Bernardino, Dec: 1.7 inSan Diego, Jan: 2.3 inSan Diego, Feb: 2.9 inSan Diego, Mar: 1.9 inSan Diego, Apr: 0.9 inSan Diego, May: 0.4 inSan Diego, Jun: 0.1 inSan Diego, Jul: 0.1 inSan Diego, Aug: 0.1 inSan Diego, Sep: 0.2 inSan Diego, Oct: 0.6 inSan Diego, Nov: 0.9 inSan Diego, Dec: 1.9 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
San Bernardino2.22.71.60.80.30.10.50.40.30.50.71.7
San Diego2.32.91.90.90.40.10.10.10.20.60.91.9

Monthly sunny days

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

San BernardinoSan Diego
0102030JanMarMayJulSepNovSan Bernardino, Jan: 20 daysSan Bernardino, Feb: 17 daysSan Bernardino, Mar: 21 daysSan Bernardino, Apr: 24 daysSan Bernardino, May: 26 daysSan Bernardino, Jun: 28 daysSan Bernardino, Jul: 29 daysSan Bernardino, Aug: 30 daysSan Bernardino, Sep: 29 daysSan Bernardino, Oct: 28 daysSan Bernardino, Nov: 24 daysSan Bernardino, Dec: 21 daysSan Diego, Jan: 20 daysSan Diego, Feb: 17 daysSan Diego, Mar: 20 daysSan Diego, Apr: 22 daysSan Diego, May: 22 daysSan Diego, Jun: 26 daysSan Diego, Jul: 28 daysSan Diego, Aug: 30 daysSan Diego, Sep: 28 daysSan Diego, Oct: 26 daysSan Diego, Nov: 24 daysSan Diego, Dec: 21 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
San Bernardino201721242628293029282421
San Diego201720222226283028262421

Keep comparing

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

San Bernardino vs another city

See the full San Bernardino, CA climate profile

More California cities

San Diego vs another city

See the full San Diego, CA climate profile

More California 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).