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
|
Fair, 37°F | Humidity: 86% | Dewpoint: 33°F |
| Wind Speed: SW 4.6 MPH (4 KT) | Heat Index: 37°F | ||
| Barometer: 30.11 in. | Wind Chill: 33°F |
Weather Forecast
| Tonight: Partly cloudy. Lows in the mid 30s. West winds around 5 mph. | |
| Lo: 35°F | ||
 | Hi: 55°F | Saturday: Partly sunny. Highs in the mid 50s. Northwest winds around 5 mph. |
| Lo: 39°F | ||
 | Hi: 55°F | Sunday: Mostly sunny. Highs in the mid 50s. East winds around 5 mph. |
| Lo: 39°F | ||
 | Hi: 51°F | Monday: Rain likely. Highs in the lower 50s. Chance of rain 70 percent. |
| Lo: 41°F | ||
| Hi: 59°F | Tuesday: Mostly cloudy in the morning...Then becoming partly sunny. Highs in the upper 50s. |
| Lo: 41°F | ||
 | Hi: 59°F | Wednesday: Mostly cloudy with a 30 percent chance of showers. Highs in the upper 50s. |
| Lo: 41°F | ||
| Hi: 55°F | Thanksgiving day: Mostly cloudy with a 30 percent chance of showers. Highs in the mid 50s. |
| Lo: 35°F |
Moon, Sunrise and Sunset
 |
Moon Phase: Waxing Crescent Moon | Civil Twilight: 6:23 AM EST |
Sunrise: 6:53 AM EST |
| Sunset: 4:40 PM EST |
Civil Twilight: 5:10 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 |
