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San Francisco, CA vs St. Louis, MO weather comparison

San Francisco

CA

St. Louis picks up around 14 more inches of snow each winter.

San Francisco has around 81 fewer freezing nights a year. St. Louis endures about 43 more days above 90 °F each year.

The year at a glance

Averages from 30 years of climate history, 1991-2020

Annual weather statistics for San Francisco, CA and St. Louis, MO
San FranciscoMetricSt. Louis
248 daysSunny daysclear or partly cloudy skies201 days
23 inPrecipitationper year42 in
71 daysWet daysrain or snow per year118 days
0 inSnowfallper year14 in
3 daysHot daysabove 90 °F46 days
0 daysFreezing nightsat or below 32 °F81 days
77%Humidityaverage relative67%
58 °FAverage temperatureyear round58 °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.

San FranciscoSt. Louis

Daily highs

406080JanMarMayJulSepNovSan Francisco, Jan: 58 °FSan Francisco, Feb: 60 °FSan Francisco, Mar: 62 °FSan Francisco, Apr: 63 °FSan Francisco, May: 64 °FSan Francisco, Jun: 66 °FSan Francisco, Jul: 66 °FSan Francisco, Aug: 68 °FSan Francisco, Sep: 70 °FSan Francisco, Oct: 70 °FSan Francisco, Nov: 64 °FSan Francisco, Dec: 58 °FSt. Louis, Jan: 41 °FSt. Louis, Feb: 46 °FSt. Louis, Mar: 56 °FSt. Louis, Apr: 68 °FSt. Louis, May: 77 °FSt. Louis, Jun: 86 °FSt. Louis, Jul: 90 °FSt. Louis, Aug: 88 °FSt. Louis, Sep: 81 °FSt. Louis, Oct: 70 °FSt. Louis, Nov: 56 °FSt. Louis, Dec: 45 °F

Daily lows

4060JanMarMayJulSepNovSan Francisco, Jan: 47 °FSan Francisco, Feb: 48 °FSan Francisco, Mar: 49 °FSan Francisco, Apr: 50 °FSan Francisco, May: 51 °FSan Francisco, Jun: 53 °FSan Francisco, Jul: 55 °FSan Francisco, Aug: 56 °FSan Francisco, Sep: 56 °FSan Francisco, Oct: 54 °FSan Francisco, Nov: 51 °FSan Francisco, Dec: 47 °FSt. Louis, Jan: 24 °FSt. Louis, Feb: 28 °FSt. Louis, Mar: 38 °FSt. Louis, Apr: 48 °FSt. Louis, May: 58 °FSt. Louis, Jun: 67 °FSt. Louis, Jul: 71 °FSt. Louis, Aug: 70 °FSt. Louis, Sep: 61 °FSt. Louis, Oct: 50 °FSt. Louis, Nov: 39 °FSt. Louis, Dec: 30 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
San Francisco high586062636466666870706458
St. Louis high414656687786908881705645
San Francisco low474849505153555656545147
St. Louis low242838485867717061503930

Monthly precipitation

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

San FranciscoSt. Louis
0.02.04.0JanMarMayJulSepNovSan Francisco, Jan: 4.5 inSan Francisco, Feb: 4.7 inSan Francisco, Mar: 3.5 inSan Francisco, Apr: 1.6 inSan Francisco, May: 0.8 inSan Francisco, Jun: 0.2 inSan Francisco, Jul: 0.0 inSan Francisco, Aug: 0.0 inSan Francisco, Sep: 0.1 inSan Francisco, Oct: 1.0 inSan Francisco, Nov: 2.2 inSan Francisco, Dec: 4.2 inSt. Louis, Jan: 2.8 inSt. Louis, Feb: 2.5 inSt. Louis, Mar: 3.7 inSt. Louis, Apr: 4.6 inSt. Louis, May: 5.0 inSt. Louis, Jun: 4.2 inSt. Louis, Jul: 3.4 inSt. Louis, Aug: 2.9 inSt. Louis, Sep: 3.3 inSt. Louis, Oct: 3.4 inSt. Louis, Nov: 3.6 inSt. Louis, Dec: 2.6 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
San Francisco4.54.73.51.60.80.20.00.00.11.02.24.2
St. Louis2.82.53.74.65.04.23.42.93.33.43.62.6

Monthly sunny days

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

San FranciscoSt. Louis
01020JanMarMayJulSepNovSan Francisco, Jan: 14 daysSan Francisco, Feb: 13 daysSan Francisco, Mar: 16 daysSan Francisco, Apr: 19 daysSan Francisco, May: 22 daysSan Francisco, Jun: 25 daysSan Francisco, Jul: 28 daysSan Francisco, Aug: 27 daysSan Francisco, Sep: 27 daysSan Francisco, Oct: 24 daysSan Francisco, Nov: 18 daysSan Francisco, Dec: 15 daysSt. Louis, Jan: 14 daysSt. Louis, Feb: 12 daysSt. Louis, Mar: 15 daysSt. Louis, Apr: 15 daysSt. Louis, May: 16 daysSt. Louis, Jun: 17 daysSt. Louis, Jul: 21 daysSt. Louis, Aug: 22 daysSt. Louis, Sep: 21 daysSt. Louis, Oct: 19 daysSt. Louis, Nov: 16 daysSt. Louis, Dec: 14 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
San Francisco141316192225282727241815
St. Louis141215151617212221191614

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).