Allentown, PA Weather
Allentown, PA climate is warm during summer when temperatures tend to be in the 70's and very cold during winter when temperatures tend to be in the 20's.
The warmest month of the year is July with an average maximum temperature of 83.90 degrees Fahrenheit, while the coldest month of the year is January with an average minimum temperature of 19.10 degrees Fahrenheit.
Temperature variations between night and day tend to be moderate during summer with a difference that can reach 21 degrees Fahrenheit, and fairly limited during winter with an average difference of 17 degrees Fahrenheit.
The annual average precipitation at Allentown is 45.17 Inches. Rainfall in is fairly evenly distributed throughout the year. The wettest month of the year is May with an average rainfall of 4.47 Inches.
Weather Data
Current Conditions
|
Overcast, 41°F | Humidity: 79% | Dewpoint: 35°F |
| Wind Speed: CALM | Heat Index: 41°F | ||
| Barometer: 30.14 in. | Wind Chill: 41°F |
Weather Forecast
 | Tonight: Mostly clear. Lows in the mid 30s. Southeast winds around 5 mph...Becoming southwest. | |
| Lo: 35°F | ||
 | Hi: 65°F | Sunday: Sunny. Highs in the mid 60s. West winds around 5 mph. |
| Lo: 41°F | ||
| Hi: 65°F | Monday: Mostly sunny. Highs in the mid 60s. Southwest winds around 5 mph. |
| Lo: 45°F | ||
 | Hi: 61°F | Tuesday: Partly sunny. A chance of showers in the afternoon. Highs in the lower 60s. Chance of rain 30 percent. |
| Lo: 40°F | ||
 | Hi: 49°F | Veterans day: Mostly cloudy in the morning...Then becoming partly sunny. Highs in the upper 40s. |
| Lo: 31°F | ||
| Hi: 51°F | Thursday: Mostly sunny. Highs in the lower 50s. |
| Lo: 31°F | ||
| Hi: 55°F | Friday: Mostly sunny. Highs in the mid 50s. |
| Lo: 40°F |
Moon, Sunrise and Sunset
 |
Moon Phase: Waning Gibbous Moon | Civil Twilight: 6:09 AM EST |
Sunrise: 6:38 AM EST |
| Sunset: 4:52 PM EST |
Civil Twilight: 5:20 PM EST |
Normal Climate
Normal Temperatures
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max °F | 35.0 | 38.7 | 48.7 | 60.1 | 70.9 | 79.3 | 83.9 | 81.7 | 74.0 | 62.9 | 51.2 | 40.0 | 60.5 |
| Mean °F | 27.1 | 29.9 | 38.8 | 49.0 | 59.6 | 68.5 | 73.3 | 71.2 | 63.4 | 52.0 | 42.0 | 32.0 | 50.6 |
| Min °F | 19.1 | 21.0 | 28.9 | 37.8 | 48.3 | 57.7 | 62.6 | 60.7 | 52.7 | 41.1 | 32.7 | 24.0 | 40.6 |
Normal Precipitation
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Inch | 3.50 | 2.75 | 3.56 | 3.49 | 4.47 | 3.99 | 4.27 | 4.35 | 4.37 | 3.33 | 3.70 | 3.39 | 45.17 |
