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San Bernardino, CA vs Tucson, AZ weather comparison

San Bernardino

CA

Tucson endures about 49 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 Tucson, AZ
San BernardinoMetricTucson
296 daysSunny daysclear or partly cloudy skies302 days
12 inPrecipitationper year11 in
42 daysWet daysrain or snow per year47 days
14 inSnowfallper year5 in
106 daysHot daysabove 90 °F155 days
3 daysFreezing nightsat or below 32 °F9 days
55%Humidityaverage relative37%
66 °FAverage temperatureyear round71 °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 BernardinoTucson

Daily highs

80100JanMarMayJulSepNovSan 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 °FTucson, Jan: 66 °FTucson, Feb: 69 °FTucson, Mar: 75 °FTucson, Apr: 83 °FTucson, May: 91 °FTucson, Jun: 101 °FTucson, Jul: 100 °FTucson, Aug: 98 °FTucson, Sep: 95 °FTucson, Oct: 86 °FTucson, Nov: 75 °FTucson, Dec: 65 °F

Daily lows

4060JanMarMayJulSepNovSan 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 °FTucson, Jan: 41 °FTucson, Feb: 44 °FTucson, Mar: 49 °FTucson, Apr: 54 °FTucson, May: 63 °FTucson, Jun: 72 °FTucson, Jul: 76 °FTucson, Aug: 75 °FTucson, Sep: 70 °FTucson, Oct: 59 °FTucson, Nov: 48 °FTucson, Dec: 41 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
San Bernardino high686972768188959693837668
Tucson high66697583911011009895867565
San Bernardino low424346495458636460544641
Tucson low414449546372767570594841

Monthly precipitation

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

San BernardinoTucson
0.01.02.0JanMarMayJulSepNovSan 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 inTucson, Jan: 1.3 inTucson, Feb: 1.3 inTucson, Mar: 0.8 inTucson, Apr: 0.3 inTucson, May: 0.1 inTucson, Jun: 0.2 inTucson, Jul: 1.5 inTucson, Aug: 1.5 inTucson, Sep: 1.0 inTucson, Oct: 0.6 inTucson, Nov: 0.7 inTucson, Dec: 1.3 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
Tucson1.31.30.80.30.10.21.51.51.00.60.71.3

Monthly sunny days

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

San BernardinoTucson
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 daysTucson, Jan: 23 daysTucson, Feb: 21 daysTucson, Mar: 25 daysTucson, Apr: 27 daysTucson, May: 28 daysTucson, Jun: 28 daysTucson, Jul: 22 daysTucson, Aug: 24 daysTucson, Sep: 27 daysTucson, Oct: 28 daysTucson, Nov: 25 daysTucson, Dec: 24 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
San Bernardino201721242628293029282421
Tucson232125272828222427282524

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

Tucson vs another city

See the full Tucson, AZ climate profile

More Arizona 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).