MilBases
Weather & Climate at Joint Reserve Base Willow Grove Navy Base
Horsham Twp, PA
Summary of the weather and climate in Horsham Twp, PA:
- The average high is 62.6°F and the average low is 46°F.
- The hottest month is July with a high of 84.9°F.
- The coldest month is January with a low of 25.5°F.
- Annual rainfall is 48.18 inches; the rainiest month is July (4.94 in).
- Annual snowfall is 24.7 inches; the snowiest month is January (8 in).
Source: NOAA climate normals.
Temperatures through the year
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Bars span each month's average low to average high (20°F – 90°F scale).
Monthly averages
| Month | High (°F) | Low (°F) | Rain (in) | Snow (in) | |
|---|---|---|---|---|---|
| January | 38.9 | 25.5 | 3.56 | 8 | |
| February | 42.1 | 27.6 | 2.78 | 8 | |
| March | 51 | 34 | 4.21 | 4.5 | |
| April | 62.3 | 43.6 | 4.01 | 0.9 | |
| May | 72.1 | 53 | 4.16 | 0 | |
| June | 80.8 | 62.5 | 4.1 | 0 | |
| July | 84.9 | 67.4 | 4.94 | 0 | |
| August | 82.9 | 65.7 | 4.13 | 0 | |
| September | 75.5 | 58 | 4.65 | 0 | |
| October | 64.2 | 46.7 | 3.53 | 0 | |
| November | 54.3 | 38.5 | 3.82 | 0.6 | |
| December | 42.7 | 30 | 4.29 | 2.7 |