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
|
Fog And Mist, 66°F | Humidity: 93% | Dewpoint: 64°F |
| Wind Speed: NE 5 MPH | Heat Index: 66°F | ||
| Barometer: 30.01 in. | Wind Chill: 66°F |
Weather Forecast
 | Tonight: Mostly cloudy with a 20 percent chance of showers. Patchy fog. Lows in the lower 60s. Light and variable winds. | |
| Lo: 61°F | ||
 | Hi: 80°F | Saturday: Patchy early morning fog...Otherwise mostly cloudy and humid. A chance of showers in the morning...Then scattered showers and thunderstorms in the afternoon. Highs around 80. East winds around 5 mph...Becoming northwest in the afternoon. Chance of rain 40 percent. |
| Lo: 59°F | ||
 | Hi: 85°F | Sunday: Sunny with highs in the mid 80s. Northwest winds around 5 mph. |
| Lo: 55°F | ||
| Hi: 89°F | Labor day: Sunny with highs in the upper 80s. |
| Lo: 59°F | ||
| Hi: 89°F | Tuesday: Sunny with highs in the upper 80s. |
| Lo: 59°F | ||
| Hi: 89°F | Wednesday: Sunny with highs in the upper 80s. |
| Lo: 61°F | ||
| Hi: 89°F | Thursday: Mostly sunny. Highs in the upper 80s. |
| Lo: 61°F |
Moon, Sunrise and Sunset
 |
Moon Phase: Waning Crescent Moon | Civil Twilight: 5:57 AM EDT |
Sunrise: 6:25 AM EDT |
| Sunset: 7:39 PM EDT |
Civil Twilight: 8:07 PM EDT |
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 |
