Philadelphia picks up around 18 more inches of snow each winter.
Whitemarsh Island has around 55 fewer freezing nights a year. Whitemarsh Island endures about 44 more days above 90 °F each year.
The year at a glance
Averages from 30 years of climate history, 1991-2020
| Philadelphia | Metric | Whitemarsh Island |
|---|---|---|
| 203 days | Sunny daysclear or partly cloudy skies | 218 days |
| 43 in | Precipitationper year | 44 in |
| 120 days | Wet daysrain or snow per year | 128 days |
| 18 in | Snowfallper year | 0 in |
| 36 days | Hot daysabove 90 °F | 80 days |
| 76 days | Freezing nightsat or below 32 °F | 21 days |
| 68% | Humidityaverage relative | 76% |
| 57 °F | Average temperatureyear round | 67 °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.
Daily highs
Daily lows
View monthly temperatures as a table
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Philadelphia high | 41 | 44 | 53 | 65 | 75 | 84 | 89 | 86 | 80 | 67 | 56 | 46 |
| Whitemarsh Island high | 61 | 65 | 71 | 78 | 85 | 90 | 92 | 91 | 86 | 79 | 70 | 64 |
| Philadelphia low | 27 | 29 | 35 | 45 | 55 | 65 | 70 | 68 | 61 | 50 | 40 | 32 |
| Whitemarsh Island low | 40 | 43 | 49 | 55 | 63 | 71 | 74 | 73 | 69 | 59 | 48 | 43 |
Monthly precipitation
Total rain plus melted snow for each month, in inches. Taller bars mean wetter months.
View monthly precipitation as a table
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Philadelphia | 3.2 | 3.0 | 4.1 | 3.6 | 3.5 | 3.8 | 3.9 | 3.7 | 4.1 | 3.6 | 2.9 | 4.0 |
| Whitemarsh Island | 3.4 | 3.3 | 3.1 | 2.7 | 2.3 | 4.6 | 4.5 | 5.9 | 4.8 | 3.8 | 2.3 | 3.4 |
Monthly sunny days
Days each month with clear or partly cloudy skies, so compare the same month between cities.
View monthly sunny days as a table
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Philadelphia | 16 | 16 | 16 | 15 | 16 | 16 | 18 | 19 | 18 | 19 | 17 | 16 |
| Whitemarsh Island | 17 | 15 | 19 | 20 | 21 | 18 | 18 | 16 | 18 | 21 | 20 | 17 |
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
- Philadelphia vs Elkins Park, PA
- Philadelphia vs Bala Cynwyd, PA
- Philadelphia vs Palmyra, NJ
- Philadelphia vs Camden, NJ
- Philadelphia vs Wyndmoor, PA
- Philadelphia vs Merion Station, PA
- Philadelphia vs New York, NY
- Philadelphia vs Los Angeles, CA
- Philadelphia vs Chicago, IL
- Philadelphia vs Houston, TX
- Philadelphia vs Phoenix, AZ
- Philadelphia vs San Antonio, TX
Whitemarsh Island vs another city
- Whitemarsh Island vs Wilmington Island, GA
- Whitemarsh Island vs Skidaway Island, GA
- Whitemarsh Island vs Garden City, GA
- Whitemarsh Island vs Savannah, GA
- Whitemarsh Island vs Georgetown, GA
- Whitemarsh Island vs Bluffton, SC
- Whitemarsh Island vs New York, NY
- Whitemarsh Island vs Los Angeles, CA
- Whitemarsh Island vs Chicago, IL
- Whitemarsh Island vs Houston, TX
- Whitemarsh Island vs Phoenix, AZ
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).