Philadelphia picks up around 18 more inches of snow each winter.
San Dimas has around 73 fewer freezing nights a year. San Dimas sees rain or snow on roughly 82 fewer days each year.
The year at a glance
Averages from 30 years of climate history, 1991-2020
| Philadelphia | Metric | San Dimas |
|---|---|---|
| 203 days | Sunny daysclear or partly cloudy skies | 290 days |
| 43 in | Precipitationper year | 16 in |
| 120 days | Wet daysrain or snow per year | 38 days |
| 18 in | Snowfallper year | 0 in |
| 36 days | Hot daysabove 90 °F | 72 days |
| 76 days | Freezing nightsat or below 32 °F | 3 days |
| 68% | Humidityaverage relative | 60% |
| 57 °F | Average temperatureyear round | 65 °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 |
| San Dimas high | 68 | 67 | 72 | 76 | 79 | 85 | 91 | 93 | 89 | 81 | 74 | 67 |
| Philadelphia low | 27 | 29 | 35 | 45 | 55 | 65 | 70 | 68 | 61 | 50 | 40 | 32 |
| San Dimas low | 43 | 44 | 47 | 50 | 54 | 57 | 62 | 63 | 61 | 54 | 47 | 42 |
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 |
| San Dimas | 3.6 | 4.0 | 2.4 | 1.0 | 0.4 | 0.1 | 0.1 | 0.0 | 0.2 | 0.7 | 1.0 | 2.4 |
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 |
| San Dimas | 19 | 17 | 20 | 23 | 25 | 28 | 29 | 30 | 29 | 27 | 24 | 21 |
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
San Dimas vs another city
- San Dimas vs La Verne, CA
- San Dimas vs Charter Oak, CA
- San Dimas vs Glendora, CA
- San Dimas vs Pomona, CA
- San Dimas vs Covina, CA
- San Dimas vs Citrus, CA
- San Dimas vs New York, NY
- San Dimas vs Los Angeles, CA
- San Dimas vs Chicago, IL
- San Dimas vs Houston, TX
- San Dimas 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).