Climate Allentown - Pennsylvania
| JanJa | FebFe | MarMa | AprAp | MayMa | JunJu | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 36 | 40 | 49 | 61 | 71 | 80 |
| Average low in ºF Av. low Lo | 20 | 22 | 29 | 38 | 48 | 58 |
| Av. precipitation in inch Av. precip. Pre. | 3.03 | 2.70 | 3.39 | 3.56 | 4.14 | 4.31 |
| Av. snowfall in inch Snowfall Sn | 10 | 11 | 5 | 1 | 0 | 0 |
| JulJu | AugAu | SepSe | OctOc | NovNo | DecDe | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 84 | 82 | 75 | 64 | 53 | 40 |
| Average low in ºF Av. low Lo | 63 | 61 | 53 | 41 | 33 | 24 |
| Av. precipitation in inch Av. precip. Pre. | 4.95 | 3.69 | 4.62 | 3.88 | 3.50 | 3.58 |
| Av. snowfall in inch Snowfall Sn | 0 | 0 | 0 | 0 | 1 | 5 |
What is the average weather in Allentown, Pennsylvania?
Allentown experiences a humid continental climate, marked by very strong seasonal contrasts. Summers are warm, while winters are cold and bring significant snowfall. Precipitation is fairly wet overall and spread relatively evenly throughout the year, with winter moisture often arriving as snow.
Allentown Climate Graph - Pennsylvania Climate Chart
Daily normals Allentown - Pennsylvania - January
Day | High ºF | Low ºF | Prec/mo inch | Prec/yr inch | Snow/mo inch | Snow/yr inch |
|---|---|---|---|---|---|---|
| 1 Jan | 39.4 | 23.7 | 0.10 | 0.10 | 2.00 | 5.08 |
| 2 Jan | 39.3 | 23.5 | 0.21 | 0.21 | 4.00 | 10.16 |
| 3 Jan | 39.1 | 23.3 | 0.32 | 0.32 | 6.00 | 15.24 |
| 4 Jan | 39.0 | 23.1 | 0.42 | 0.42 | 8.00 | 20.32 |
| 5 Jan | 38.9 | 23.0 | 0.53 | 0.53 | 10.00 | 25.40 |
| 6 Jan | 38.8 | 22.8 | 0.64 | 0.64 | 12.00 | 30.48 |
| 7 Jan | 38.7 | 22.6 | 0.75 | 0.75 | 14.00 | 35.56 |
| 8 Jan | 38.6 | 22.5 | 0.84 | 0.84 | 17.00 | 43.18 |
| 9 Jan | 38.5 | 22.3 | 0.95 | 0.95 | 20.00 | 50.80 |
| 10 Jan | 38.4 | 22.2 | 1.05 | 1.05 | 22.00 | 55.88 |
| 11 Jan | 38.3 | 22.1 | 1.16 | 1.16 | 25.00 | 63.50 |
| 12 Jan | 38.2 | 21.9 | 1.27 | 1.27 | 29.00 | 73.66 |
| 13 Jan | 38.2 | 21.8 | 1.38 | 1.38 | 32.00 | 81.28 |
| 14 Jan | 38.1 | 21.7 | 1.49 | 1.49 | 35.00 | 88.90 |
| 15 Jan | 38.1 | 21.6 | 1.60 | 1.60 | 39.00 | 99.06 |
| 16 Jan | 38.0 | 21.5 | 1.71 | 1.71 | 42.00 | 106.68 |
| 17 Jan | 38.0 | 21.4 | 1.82 | 1.82 | 45.00 | 114.30 |
| 18 Jan | 38.0 | 21.3 | 1.92 | 1.92 | 49.00 | 124.46 |
| 19 Jan | 38.0 | 21.2 | 2.03 | 2.03 | 52.00 | 132.08 |
| 20 Jan | 38.0 | 21.2 | 2.14 | 2.14 | 55.00 | 139.70 |
| 21 Jan | 38.0 | 21.1 | 2.24 | 2.24 | 59.00 | 149.86 |
| 22 Jan | 38.0 | 21.1 | 2.35 | 2.35 | 63.00 | 160.02 |
| 23 Jan | 38.1 | 21.0 | 2.46 | 2.46 | 66.00 | 167.64 |
| 24 Jan | 38.1 | 21.0 | 2.57 | 2.57 | 70.00 | 177.80 |
| 25 Jan | 38.2 | 21.0 | 2.68 | 2.68 | 73.00 | 185.42 |
| 26 Jan | 38.2 | 21.0 | 2.78 | 2.78 | 77.00 | 195.58 |
| 27 Jan | 38.3 | 21.0 | 2.88 | 2.88 | 81.00 | 205.74 |
| 28 Jan | 38.4 | 21.0 | 2.98 | 2.98 | 85.00 | 215.90 |
| 29 Jan | 38.5 | 21.0 | 3.09 | 3.09 | 89.00 | 226.06 |
| 30 Jan | 38.6 | 21.0 | 3.19 | 3.19 | 93.00 | 236.22 |
| 31 Jan | 38.7 | 21.1 | 3.30 | 3.30 | 98.00 | 248.92 |
Weather history Allentown - July 2026
| Day | High ºF | Low ºF | Precip. inch | Snow inch | Snow d. inch |
|---|---|---|---|---|---|
| 01 Jul | 97.0 | 68.0 | 0.00 | 0.00 | 0.0 |
| 02 Jul | 100.9 | 73.9 | 0.00 | 0.00 | 0.0 |
| 03 Jul | - | - | - | - | - |
| 04 Jul | - | - | - | - | - |
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| 30 Jul | - | - | - | - | - |
| 31 Jul | - | - | - | - | - |
Past weather Allentown
| Jul 26 | Normal | ||
|---|---|---|---|
| Average high temperature Av. high temp. | 99.0 ºF | 36 ºF | |
| Average low temperature Av. low temp. | 71.0 ºF | 20 ºF | |
| Total precipitation Total precip. | 0.00 inch | 3.03 inch | |
| Total snowfall Total snowfall | 0.00 inch | 10 inch | |
| Highest max temperature Highest max temp. | 100.9 ºF | - | |
| Lowest max temperature Lowest max temp. | 97.0 ºF | - | |
| Highest min temperature Highest min temp. | 73.9 ºF | - | |
| Lowest min temperature Lowest min temp. | 68.0 ºF | - | |
Past weather July 2026 incomplete - Missing data
Geo Allentown - Pennsylvania
| Country | United States | |
|---|---|---|
| State | Pennsylvania | |
| County | Lehigh | |
| City | Allentown | |
| Zip Code | 18101 | |
| Longitude | -75.49 dec. degr. | |
| Latitude | 40.61 dec. degr. | |
| Altitude - Elevation | 341ft | |
| ICAO | - | |
| IATA | - |
Date and Time Allentown - Pennsylvania
| Local Time | 09:41 PM | |
|---|---|---|
| Sunrise | 05:35 AM | |
| Sunset | 08:37 PM | |
| Day/Night | Night | |
| Timezone | Eastern Daylight Time | |
| Timezone DB | America - New York |
Map of Allentown - Pennsylvania
USGS National Map — Open interactive map
Allentown weather averages
| Annual high temperature | 61ºF |
| Annual low temperature | 41ºF |
| Average annual precip. | 45.35 inch |
| Av. annual snowfall | 33 inch |
Station Data
Monthly averages Allentown
Longitude: -75.4902, Latitude: 40.6084
Average weather Allentown, PA - 18101
Monthly: 1991-2020 normals
History: 2007-2026
Abbreviations
Average precipitation in : Av. precipitation in
Jan: January, Feb: February, ...Jan: January, Feb: February, ...Ja: January, Fe: February, ...