Skip to content
VSWeather

Phoenix, AZ vs San Jacinto, CA weather comparison

Phoenix

AZ

Phoenix endures about 43 more days above 90 °F each year.

Phoenix enjoys about 23 more sunny days a year than San Jacinto.

The year at a glance

Averages from 30 years of climate history, 1991-2020

Annual weather statistics for Phoenix, AZ and San Jacinto, CA
PhoenixMetricSan Jacinto
307 daysSunny daysclear or partly cloudy skies284 days
7 inPrecipitationper year15 in
33 daysWet daysrain or snow per year43 days
0 inSnowfallper year9 in
163 daysHot daysabove 90 °F120 days
2 daysFreezing nightsat or below 32 °F15 days
35%Humidityaverage relative56%
74 °FAverage temperatureyear round65 °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.

PhoenixSan Jacinto

Daily highs

80100JanMarMayJulSepNovPhoenix, Jan: 66 °FPhoenix, Feb: 69 °FPhoenix, Mar: 76 °FPhoenix, Apr: 83 °FPhoenix, May: 92 °FPhoenix, Jun: 102 °FPhoenix, Jul: 105 °FPhoenix, Aug: 103 °FPhoenix, Sep: 98 °FPhoenix, Oct: 87 °FPhoenix, Nov: 75 °FPhoenix, Dec: 65 °FSan Jacinto, Jan: 66 °FSan Jacinto, Feb: 66 °FSan Jacinto, Mar: 70 °FSan Jacinto, Apr: 74 °FSan Jacinto, May: 80 °FSan Jacinto, Jun: 89 °FSan Jacinto, Jul: 95 °FSan Jacinto, Aug: 96 °FSan Jacinto, Sep: 92 °FSan Jacinto, Oct: 82 °FSan Jacinto, Nov: 73 °FSan Jacinto, Dec: 65 °F

Daily lows

406080JanMarMayJulSepNovPhoenix, Jan: 44 °FPhoenix, Feb: 47 °FPhoenix, Mar: 52 °FPhoenix, Apr: 58 °FPhoenix, May: 67 °FPhoenix, Jun: 75 °FPhoenix, Jul: 82 °FPhoenix, Aug: 82 °FPhoenix, Sep: 76 °FPhoenix, Oct: 64 °FPhoenix, Nov: 51 °FPhoenix, Dec: 43 °FSan Jacinto, Jan: 40 °FSan Jacinto, Feb: 42 °FSan Jacinto, Mar: 45 °FSan Jacinto, Apr: 48 °FSan Jacinto, May: 53 °FSan Jacinto, Jun: 58 °FSan Jacinto, Jul: 64 °FSan Jacinto, Aug: 64 °FSan Jacinto, Sep: 61 °FSan Jacinto, Oct: 53 °FSan Jacinto, Nov: 44 °FSan Jacinto, Dec: 39 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Phoenix high666976839210210510398877565
San Jacinto high666670748089959692827365
Phoenix low444752586775828276645143
San Jacinto low404245485358646461534439

Monthly precipitation

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

PhoenixSan Jacinto
0.01.02.03.0JanMarMayJulSepNovPhoenix, Jan: 0.9 inPhoenix, Feb: 1.1 inPhoenix, Mar: 0.8 inPhoenix, Apr: 0.2 inPhoenix, May: 0.1 inPhoenix, Jun: 0.1 inPhoenix, Jul: 0.6 inPhoenix, Aug: 0.9 inPhoenix, Sep: 0.7 inPhoenix, Oct: 0.6 inPhoenix, Nov: 0.5 inPhoenix, Dec: 0.8 inSan Jacinto, Jan: 2.9 inSan Jacinto, Feb: 3.5 inSan Jacinto, Mar: 2.2 inSan Jacinto, Apr: 1.1 inSan Jacinto, May: 0.5 inSan Jacinto, Jun: 0.1 inSan Jacinto, Jul: 0.2 inSan Jacinto, Aug: 0.1 inSan Jacinto, Sep: 0.2 inSan Jacinto, Oct: 0.7 inSan Jacinto, Nov: 1.1 inSan Jacinto, Dec: 2.3 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Phoenix0.91.10.80.20.10.10.60.90.70.60.50.8
San Jacinto2.93.52.21.10.50.10.20.10.20.71.12.3

Monthly sunny days

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

PhoenixSan Jacinto
0102030JanMarMayJulSepNovPhoenix, Jan: 23 daysPhoenix, Feb: 21 daysPhoenix, Mar: 25 daysPhoenix, Apr: 27 daysPhoenix, May: 29 daysPhoenix, Jun: 29 daysPhoenix, Jul: 24 daysPhoenix, Aug: 26 daysPhoenix, Sep: 28 daysPhoenix, Oct: 28 daysPhoenix, Nov: 25 daysPhoenix, Dec: 24 daysSan Jacinto, Jan: 19 daysSan Jacinto, Feb: 17 daysSan Jacinto, Mar: 19 daysSan Jacinto, Apr: 21 daysSan Jacinto, May: 24 daysSan Jacinto, Jun: 27 daysSan Jacinto, Jul: 28 daysSan Jacinto, Aug: 30 daysSan Jacinto, Sep: 28 daysSan Jacinto, Oct: 26 daysSan Jacinto, Nov: 23 daysSan Jacinto, Dec: 21 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Phoenix232125272929242628282524
San Jacinto191719212427283028262321

Keep comparing

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

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).