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Oak Park, CA vs Simi Valley, CA weather comparison

Oak Park

CA

Oak Park and Simi Valley have remarkably similar climates.

The year at a glance

Averages from 30 years of climate history, 1991-2020

Annual weather statistics for Oak Park, CA and Simi Valley, CA
Oak ParkMetricSimi Valley
293 daysSunny daysclear or partly cloudy skies293 days
16 inPrecipitationper year16 in
33 daysWet daysrain or snow per year33 days
0 inSnowfallper year0 in
94 daysHot daysabove 90 °F94 days
5 daysFreezing nightsat or below 32 °F4 days
67%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.

Oak ParkSimi Valley

Daily highs

708090JanMarMayJulSepNovOak Park, Jan: 69 °FOak Park, Feb: 69 °FOak Park, Mar: 73 °FOak Park, Apr: 76 °FOak Park, May: 80 °FOak Park, Jun: 86 °FOak Park, Jul: 93 °FOak Park, Aug: 95 °FOak Park, Sep: 92 °FOak Park, Oct: 84 °FOak Park, Nov: 76 °FOak Park, Dec: 68 °FSimi Valley, Jan: 67 °FSimi Valley, Feb: 68 °FSimi Valley, Mar: 72 °FSimi Valley, Apr: 76 °FSimi Valley, May: 80 °FSimi Valley, Jun: 87 °FSimi Valley, Jul: 93 °FSimi Valley, Aug: 95 °FSimi Valley, Sep: 92 °FSimi Valley, Oct: 83 °FSimi Valley, Nov: 74 °FSimi Valley, Dec: 66 °F

Daily lows

5060JanMarMayJulSepNovOak Park, Jan: 45 °FOak Park, Feb: 45 °FOak Park, Mar: 48 °FOak Park, Apr: 50 °FOak Park, May: 54 °FOak Park, Jun: 58 °FOak Park, Jul: 62 °FOak Park, Aug: 63 °FOak Park, Sep: 60 °FOak Park, Oct: 55 °FOak Park, Nov: 48 °FOak Park, Dec: 44 °FSimi Valley, Jan: 45 °FSimi Valley, Feb: 45 °FSimi Valley, Mar: 47 °FSimi Valley, Apr: 49 °FSimi Valley, May: 54 °FSimi Valley, Jun: 58 °FSimi Valley, Jul: 62 °FSimi Valley, Aug: 63 °FSimi Valley, Sep: 61 °FSimi Valley, Oct: 55 °FSimi Valley, Nov: 48 °FSimi Valley, Dec: 44 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Oak Park high696973768086939592847668
Simi Valley high676872768087939592837466
Oak Park low454548505458626360554844
Simi Valley low454547495458626361554844

Monthly precipitation

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

Oak ParkSimi Valley
0.02.04.0JanMarMayJulSepNovOak Park, Jan: 3.6 inOak Park, Feb: 3.8 inOak Park, Mar: 2.6 inOak Park, Apr: 0.9 inOak Park, May: 0.5 inOak Park, Jun: 0.1 inOak Park, Jul: 0.1 inOak Park, Aug: 0.0 inOak Park, Sep: 0.2 inOak Park, Oct: 0.8 inOak Park, Nov: 0.8 inOak Park, Dec: 2.3 inSimi Valley, Jan: 3.6 inSimi Valley, Feb: 3.8 inSimi Valley, Mar: 2.6 inSimi Valley, Apr: 0.9 inSimi Valley, May: 0.5 inSimi Valley, Jun: 0.1 inSimi Valley, Jul: 0.1 inSimi Valley, Aug: 0.0 inSimi Valley, Sep: 0.2 inSimi Valley, Oct: 0.8 inSimi Valley, Nov: 0.8 inSimi Valley, Dec: 2.3 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Oak Park3.63.82.60.90.50.10.10.00.20.80.82.3
Simi Valley3.63.82.60.90.50.10.10.00.20.80.82.3

Monthly sunny days

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

Oak ParkSimi Valley
0102030JanMarMayJulSepNovOak Park, Jan: 20 daysOak Park, Feb: 18 daysOak Park, Mar: 21 daysOak Park, Apr: 24 daysOak Park, May: 24 daysOak Park, Jun: 27 daysOak Park, Jul: 29 daysOak Park, Aug: 30 daysOak Park, Sep: 29 daysOak Park, Oct: 27 daysOak Park, Nov: 24 daysOak Park, Dec: 22 daysSimi Valley, Jan: 20 daysSimi Valley, Feb: 18 daysSimi Valley, Mar: 21 daysSimi Valley, Apr: 24 daysSimi Valley, May: 24 daysSimi Valley, Jun: 27 daysSimi Valley, Jul: 29 daysSimi Valley, Aug: 30 daysSimi Valley, Sep: 29 daysSimi Valley, Oct: 27 daysSimi Valley, Nov: 24 daysSimi Valley, Dec: 22 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Oak Park201821242427293029272422
Simi Valley201821242427293029272422

Keep comparing

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

Oak Park vs another city

See the full Oak Park, CA climate profile

More California cities

Simi Valley vs another city

See the full Simi Valley, 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).