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Philadelphia, PA vs Potomac Park, CA weather comparison

Philadelphia

PA

Philadelphia picks up around 18 more inches of snow each winter.

Potomac Park has around 60 fewer freezing nights a year. Potomac Park endures about 75 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 Philadelphia, PA and Potomac Park, CA
PhiladelphiaMetricPotomac Park
203 daysSunny daysclear or partly cloudy skies285 days
43 inPrecipitationper year11 in
120 daysWet daysrain or snow per year44 days
18 inSnowfallper year0 in
36 daysHot daysabove 90 °F111 days
76 daysFreezing nightsat or below 32 °F16 days
68%Humidityaverage relative54%
57 °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.

PhiladelphiaPotomac Park

Daily highs

406080100JanMarMayJulSepNovPhiladelphia, Jan: 41 °FPhiladelphia, Feb: 44 °FPhiladelphia, Mar: 53 °FPhiladelphia, Apr: 65 °FPhiladelphia, May: 75 °FPhiladelphia, Jun: 84 °FPhiladelphia, Jul: 89 °FPhiladelphia, Aug: 86 °FPhiladelphia, Sep: 80 °FPhiladelphia, Oct: 67 °FPhiladelphia, Nov: 56 °FPhiladelphia, Dec: 46 °FPotomac Park, Jan: 58 °FPotomac Park, Feb: 64 °FPotomac Park, Mar: 70 °FPotomac Park, Apr: 75 °FPotomac Park, May: 83 °FPotomac Park, Jun: 92 °FPotomac Park, Jul: 98 °FPotomac Park, Aug: 96 °FPotomac Park, Sep: 91 °FPotomac Park, Oct: 80 °FPotomac Park, Nov: 67 °FPotomac Park, Dec: 59 °F

Daily lows

4060JanMarMayJulSepNovPhiladelphia, Jan: 27 °FPhiladelphia, Feb: 29 °FPhiladelphia, Mar: 35 °FPhiladelphia, Apr: 45 °FPhiladelphia, May: 55 °FPhiladelphia, Jun: 65 °FPhiladelphia, Jul: 70 °FPhiladelphia, Aug: 68 °FPhiladelphia, Sep: 61 °FPhiladelphia, Oct: 50 °FPhiladelphia, Nov: 40 °FPhiladelphia, Dec: 32 °FPotomac Park, Jan: 39 °FPotomac Park, Feb: 42 °FPotomac Park, Mar: 46 °FPotomac Park, Apr: 49 °FPotomac Park, May: 57 °FPotomac Park, Jun: 64 °FPotomac Park, Jul: 70 °FPotomac Park, Aug: 69 °FPotomac Park, Sep: 64 °FPotomac Park, Oct: 54 °FPotomac Park, Nov: 44 °FPotomac Park, Dec: 38 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Philadelphia high414453657584898680675646
Potomac Park high586470758392989691806759
Philadelphia low272935455565706861504032
Potomac Park low394246495764706964544438

Monthly precipitation

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

PhiladelphiaPotomac Park
0.02.04.0JanMarMayJulSepNovPhiladelphia, Jan: 3.2 inPhiladelphia, Feb: 3.0 inPhiladelphia, Mar: 4.1 inPhiladelphia, Apr: 3.6 inPhiladelphia, May: 3.5 inPhiladelphia, Jun: 3.8 inPhiladelphia, Jul: 3.9 inPhiladelphia, Aug: 3.7 inPhiladelphia, Sep: 4.1 inPhiladelphia, Oct: 3.6 inPhiladelphia, Nov: 2.9 inPhiladelphia, Dec: 4.0 inPotomac Park, Jan: 1.9 inPotomac Park, Feb: 1.9 inPotomac Park, Mar: 1.9 inPotomac Park, Apr: 1.1 inPotomac Park, May: 0.4 inPotomac Park, Jun: 0.1 inPotomac Park, Jul: 0.0 inPotomac Park, Aug: 0.0 inPotomac Park, Sep: 0.0 inPotomac Park, Oct: 0.4 inPotomac Park, Nov: 1.0 inPotomac Park, Dec: 1.9 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Philadelphia3.23.04.13.63.53.83.93.74.13.62.94.0
Potomac Park1.91.91.91.10.40.10.00.00.00.41.01.9

Monthly sunny days

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

PhiladelphiaPotomac Park
0102030JanMarMayJulSepNovPhiladelphia, Jan: 16 daysPhiladelphia, Feb: 16 daysPhiladelphia, Mar: 16 daysPhiladelphia, Apr: 15 daysPhiladelphia, May: 16 daysPhiladelphia, Jun: 16 daysPhiladelphia, Jul: 18 daysPhiladelphia, Aug: 19 daysPhiladelphia, Sep: 18 daysPhiladelphia, Oct: 19 daysPhiladelphia, Nov: 17 daysPhiladelphia, Dec: 16 daysPotomac Park, Jan: 16 daysPotomac Park, Feb: 16 daysPotomac Park, Mar: 19 daysPotomac Park, Apr: 22 daysPotomac Park, May: 26 daysPotomac Park, Jun: 29 daysPotomac Park, Jul: 30 daysPotomac Park, Aug: 30 daysPotomac Park, Sep: 29 daysPotomac Park, Oct: 27 daysPotomac Park, Nov: 22 daysPotomac Park, Dec: 19 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Philadelphia161616151616181918191716
Potomac Park161619222629303029272219

Keep comparing

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

Philadelphia vs another city

See the full Philadelphia, PA climate profile

More Pennsylvania cities

Potomac Park vs another city

See the full Potomac Park, 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).