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Diamond Bar, CA vs South San Jose Hills, CA weather comparison

Diamond Bar

CA

Diamond Bar and South San Jose Hills have remarkably similar climates.

The year at a glance

Averages from 30 years of climate history, 1991-2020

Annual weather statistics for Diamond Bar, CA and South San Jose Hills, CA
Diamond BarMetricSouth San Jose Hills
290 daysSunny daysclear or partly cloudy skies291 days
16 inPrecipitationper year14 in
38 daysWet daysrain or snow per year34 days
0 inSnowfallper year0 in
70 daysHot daysabove 90 °F53 days
3 daysFreezing nightsat or below 32 °F1 days
63%Humidityaverage relative63%
66 °FAverage temperatureyear round66 °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.

Diamond BarSouth San Jose Hills

Daily highs

708090JanMarMayJulSepNovDiamond Bar, Jan: 69 °FDiamond Bar, Feb: 69 °FDiamond Bar, Mar: 73 °FDiamond Bar, Apr: 76 °FDiamond Bar, May: 79 °FDiamond Bar, Jun: 84 °FDiamond Bar, Jul: 90 °FDiamond Bar, Aug: 92 °FDiamond Bar, Sep: 89 °FDiamond Bar, Oct: 82 °FDiamond Bar, Nov: 75 °FDiamond Bar, Dec: 68 °FSouth San Jose Hills, Jan: 69 °FSouth San Jose Hills, Feb: 69 °FSouth San Jose Hills, Mar: 72 °FSouth San Jose Hills, Apr: 76 °FSouth San Jose Hills, May: 78 °FSouth San Jose Hills, Jun: 82 °FSouth San Jose Hills, Jul: 87 °FSouth San Jose Hills, Aug: 90 °FSouth San Jose Hills, Sep: 87 °FSouth San Jose Hills, Oct: 81 °FSouth San Jose Hills, Nov: 75 °FSouth San Jose Hills, Dec: 68 °F

Daily lows

5060JanMarMayJulSepNovDiamond Bar, Jan: 44 °FDiamond Bar, Feb: 45 °FDiamond Bar, Mar: 48 °FDiamond Bar, Apr: 51 °FDiamond Bar, May: 55 °FDiamond Bar, Jun: 58 °FDiamond Bar, Jul: 63 °FDiamond Bar, Aug: 64 °FDiamond Bar, Sep: 61 °FDiamond Bar, Oct: 55 °FDiamond Bar, Nov: 48 °FDiamond Bar, Dec: 43 °FSouth San Jose Hills, Jan: 46 °FSouth San Jose Hills, Feb: 47 °FSouth San Jose Hills, Mar: 50 °FSouth San Jose Hills, Apr: 52 °FSouth San Jose Hills, May: 56 °FSouth San Jose Hills, Jun: 60 °FSouth San Jose Hills, Jul: 64 °FSouth San Jose Hills, Aug: 65 °FSouth San Jose Hills, Sep: 63 °FSouth San Jose Hills, Oct: 57 °FSouth San Jose Hills, Nov: 50 °FSouth San Jose Hills, Dec: 45 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Diamond Bar high696973767984909289827568
South San Jose Hills high696972767882879087817568
Diamond Bar low444548515558636461554843
South San Jose Hills low464750525660646563575045

Monthly precipitation

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

Diamond BarSouth San Jose Hills
0.02.04.0JanMarMayJulSepNovDiamond Bar, Jan: 3.6 inDiamond Bar, Feb: 4.0 inDiamond Bar, Mar: 2.4 inDiamond Bar, Apr: 1.0 inDiamond Bar, May: 0.4 inDiamond Bar, Jun: 0.1 inDiamond Bar, Jul: 0.1 inDiamond Bar, Aug: 0.0 inDiamond Bar, Sep: 0.2 inDiamond Bar, Oct: 0.7 inDiamond Bar, Nov: 1.0 inDiamond Bar, Dec: 2.4 inSouth San Jose Hills, Jan: 3.3 inSouth San Jose Hills, Feb: 3.5 inSouth San Jose Hills, Mar: 2.2 inSouth San Jose Hills, Apr: 0.9 inSouth San Jose Hills, May: 0.4 inSouth San Jose Hills, Jun: 0.1 inSouth San Jose Hills, Jul: 0.1 inSouth San Jose Hills, Aug: 0.0 inSouth San Jose Hills, Sep: 0.1 inSouth San Jose Hills, Oct: 0.6 inSouth San Jose Hills, Nov: 0.8 inSouth San Jose Hills, Dec: 2.2 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Diamond Bar3.64.02.41.00.40.10.10.00.20.71.02.4
South San Jose Hills3.33.52.20.90.40.10.10.00.10.60.82.2

Monthly sunny days

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

Diamond BarSouth San Jose Hills
0102030JanMarMayJulSepNovDiamond Bar, Jan: 19 daysDiamond Bar, Feb: 17 daysDiamond Bar, Mar: 20 daysDiamond Bar, Apr: 23 daysDiamond Bar, May: 25 daysDiamond Bar, Jun: 28 daysDiamond Bar, Jul: 29 daysDiamond Bar, Aug: 30 daysDiamond Bar, Sep: 29 daysDiamond Bar, Oct: 27 daysDiamond Bar, Nov: 24 daysDiamond Bar, Dec: 21 daysSouth San Jose Hills, Jan: 19 daysSouth San Jose Hills, Feb: 18 daysSouth San Jose Hills, Mar: 21 daysSouth San Jose Hills, Apr: 23 daysSouth San Jose Hills, May: 24 daysSouth San Jose Hills, Jun: 27 daysSouth San Jose Hills, Jul: 29 daysSouth San Jose Hills, Aug: 30 daysSouth San Jose Hills, Sep: 28 daysSouth San Jose Hills, Oct: 27 daysSouth San Jose Hills, Nov: 24 daysSouth San Jose Hills, Dec: 21 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Diamond Bar191720232528293029272421
South San Jose Hills191821232427293028272421

Keep comparing

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

Diamond Bar vs another city

See the full Diamond Bar, CA climate profile

More California cities

South San Jose Hills vs another city

See the full South San Jose Hills, 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).