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Bostonia, CA weather and climate

San Diego County, CA · population 16,545 · about 640 ft elevation

Everything below is a 30 year average for 1991-2020, computed from daily climate history at Bostonia's own coordinates.

The year at a glance

Sunny days
283
clear or partly cloudy, per year
Precipitation
12 in
per year
Wet days
38
rain or snow per year
Snowfall
0 in
per year
Hot days
59
above 90 °F
Freezing nights
3
at or below 32 °F
Humidity
65%
average relative
Average temperature
65 °F
year round

Monthly temperatures

Average daily high and low for each month, in °F.

Daily highDaily low
406080JanMarMayJulSepNovDaily high, Jan: 69 °FDaily high, Feb: 69 °FDaily high, Mar: 71 °FDaily high, Apr: 74 °FDaily high, May: 76 °FDaily high, Jun: 81 °FDaily high, Jul: 86 °FDaily high, Aug: 89 °FDaily high, Sep: 87 °FDaily high, Oct: 81 °FDaily high, Nov: 75 °FDaily high, Dec: 69 °FDaily low, Jan: 42 °FDaily low, Feb: 44 °FDaily low, Mar: 48 °FDaily low, Apr: 50 °FDaily low, May: 56 °FDaily low, Jun: 59 °FDaily low, Jul: 63 °FDaily low, Aug: 64 °FDaily low, Sep: 62 °FDaily low, Oct: 55 °FDaily low, Nov: 47 °FDaily low, Dec: 42 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Daily high696971747681868987817569
Daily low424448505659636462554742

Monthly precipitation

Total rain plus melted snow for each month, in inches.

0.01.02.03.0JanMarMayJulSepNovBostonia, Jan: 2.3 inBostonia, Feb: 2.9 inBostonia, Mar: 1.9 inBostonia, Apr: 0.9 inBostonia, May: 0.4 inBostonia, Jun: 0.1 inBostonia, Jul: 0.1 inBostonia, Aug: 0.1 inBostonia, Sep: 0.2 inBostonia, Oct: 0.6 inBostonia, Nov: 0.9 inBostonia, Dec: 1.9 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Bostonia2.32.91.90.90.40.10.10.10.20.60.91.9

Monthly sunny days

Days each month with clear or partly cloudy skies.

0102030JanMarMayJulSepNovBostonia, Jan: 20 daysBostonia, Feb: 17 daysBostonia, Mar: 20 daysBostonia, Apr: 22 daysBostonia, May: 22 daysBostonia, Jun: 26 daysBostonia, Jul: 28 daysBostonia, Aug: 30 daysBostonia, Sep: 28 daysBostonia, Oct: 26 daysBostonia, Nov: 24 daysBostonia, Dec: 21 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Bostonia201720222226283028262421

Compare Bostonia with another city

Nearby cities and popular picks. Any two cities can be compared from the home page.

See weather for every covered California city

About this data

Figures are 30 year averages for 1991-2020. 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).