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Boise, ID vs Fontana, CA weather comparison

Boise

ID

Boise picks up around 18 more inches of snow each winter.

Fontana has around 107 fewer freezing nights a year. Fontana sees rain or snow on roughly 37 fewer days each year.

The year at a glance

Averages from 30 years of climate history, 1991-2020

Annual weather statistics for Boise, ID and Fontana, CA
BoiseMetricFontana
239 daysSunny daysclear or partly cloudy skies284 days
12 inPrecipitationper year11 in
73 daysWet daysrain or snow per year36 days
18 inSnowfallper year0 in
54 daysHot daysabove 90 °F97 days
109 daysFreezing nightsat or below 32 °F2 days
54%Humidityaverage relative59%
53 °FAverage temperatureyear round67 °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.

BoiseFontana

Daily highs

406080JanMarMayJulSepNovBoise, Jan: 39 °FBoise, Feb: 46 °FBoise, Mar: 55 °FBoise, Apr: 62 °FBoise, May: 72 °FBoise, Jun: 81 °FBoise, Jul: 92 °FBoise, Aug: 91 °FBoise, Sep: 80 °FBoise, Oct: 65 °FBoise, Nov: 49 °FBoise, Dec: 39 °FFontana, Jan: 68 °FFontana, Feb: 69 °FFontana, Mar: 72 °FFontana, Apr: 76 °FFontana, May: 80 °FFontana, Jun: 87 °FFontana, Jul: 94 °FFontana, Aug: 95 °FFontana, Sep: 92 °FFontana, Oct: 82 °FFontana, Nov: 75 °FFontana, Dec: 67 °F

Daily lows

4060JanMarMayJulSepNovBoise, Jan: 26 °FBoise, Feb: 29 °FBoise, Mar: 35 °FBoise, Apr: 39 °FBoise, May: 47 °FBoise, Jun: 54 °FBoise, Jul: 62 °FBoise, Aug: 61 °FBoise, Sep: 52 °FBoise, Oct: 41 °FBoise, Nov: 32 °FBoise, Dec: 25 °FFontana, Jan: 44 °FFontana, Feb: 46 °FFontana, Mar: 48 °FFontana, Apr: 51 °FFontana, May: 55 °FFontana, Jun: 60 °FFontana, Jul: 64 °FFontana, Aug: 65 °FFontana, Sep: 63 °FFontana, Oct: 56 °FFontana, Nov: 48 °FFontana, Dec: 43 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Boise high394655627281929180654939
Fontana high686972768087949592827567
Boise low262935394754626152413225
Fontana low444648515560646563564843

Monthly precipitation

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

BoiseFontana
0.01.02.0JanMarMayJulSepNovBoise, Jan: 1.8 inBoise, Feb: 1.2 inBoise, Mar: 1.4 inBoise, Apr: 1.2 inBoise, May: 1.2 inBoise, Jun: 0.6 inBoise, Jul: 0.1 inBoise, Aug: 0.1 inBoise, Sep: 0.4 inBoise, Oct: 0.9 inBoise, Nov: 1.4 inBoise, Dec: 2.0 inFontana, Jan: 2.2 inFontana, Feb: 2.6 inFontana, Mar: 1.6 inFontana, Apr: 0.7 inFontana, May: 0.4 inFontana, Jun: 0.1 inFontana, Jul: 0.1 inFontana, Aug: 0.0 inFontana, Sep: 0.1 inFontana, Oct: 0.5 inFontana, Nov: 0.7 inFontana, Dec: 1.6 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Boise1.81.21.41.21.20.60.10.10.40.91.42.0
Fontana2.22.61.60.70.40.10.10.00.10.50.71.6

Monthly sunny days

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

BoiseFontana
0102030JanMarMayJulSepNovBoise, Jan: 14 daysBoise, Feb: 14 daysBoise, Mar: 15 daysBoise, Apr: 18 daysBoise, May: 20 daysBoise, Jun: 23 daysBoise, Jul: 29 daysBoise, Aug: 28 daysBoise, Sep: 26 daysBoise, Oct: 23 daysBoise, Nov: 16 daysBoise, Dec: 14 daysFontana, Jan: 19 daysFontana, Feb: 16 daysFontana, Mar: 18 daysFontana, Apr: 21 daysFontana, May: 24 daysFontana, Jun: 27 daysFontana, Jul: 29 daysFontana, Aug: 30 daysFontana, Sep: 28 daysFontana, Oct: 26 daysFontana, Nov: 24 daysFontana, Dec: 21 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Boise141415182023292826231614
Fontana191618212427293028262421

Keep comparing

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

Boise vs another city

See the full Boise, ID climate profile

More Idaho cities

Fontana vs another city

See the full Fontana, 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).