Climate Norristown - Pennsylvania
| JanJa | FebFe | MarMa | AprAp | MayMa | JunJu | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 41 | 44 | 53 | 64 | 75 | 83 |
| Average low in ºF Av. low Lo | 22 | 24 | 31 | 41 | 51 | 61 |
| Av. precipitation in inch Av. precip. Pre. | 3.40 | 3.06 | 4.00 | 4.03 | 4.21 | 3.98 |
| Av. snowfall in inch Snowfall Sn | 6 | 12 | 2 | 1 | 0 | 0 |
| JulJu | AugAu | SepSe | OctOc | NovNo | DecDe | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 88 | 87 | 80 | 68 | 57 | 45 |
| Average low in ºF Av. low Lo | 66 | 64 | 56 | 44 | 35 | 27 |
| Av. precipitation in inch Av. precip. Pre. | 4.76 | 4.37 | 4.87 | 3.73 | 3.80 | 4.17 |
| Av. snowfall in inch Snowfall Sn | 0 | 0 | 0 | 0 | 0 | 4 |
Norristown experiences a humid continental climate, marked by a very large seasonal temperature contrast. Summers are hot, while winters are cold and bring regular snowfall. Precipitation is fairly wet overall, spread relatively evenly through the year, with winter moisture often arriving as snow.
Norristown Climate Graph - Pennsylvania Climate Chart
Daily normals Norristown - Pennsylvania - January
Day | High ºF | Low ºF | Prec/mo inch | Prec/yr inch | Snow/mo inch | Snow/yr inch |
|---|---|---|---|---|---|---|
| 1 Jan | 41.7 | 23.6 | 0.12 | 0.12 | 0.12 | 0.30 |
| 2 Jan | 41.6 | 23.4 | 0.24 | 0.24 | 0.20 | 0.50 |
| 3 Jan | 41.5 | 23.3 | 0.35 | 0.35 | 0.20 | 0.50 |
| 4 Jan | 41.4 | 23.1 | 0.43 | 0.43 | 0.31 | 0.80 |
| 5 Jan | 41.3 | 23.0 | 0.55 | 0.55 | 0.39 | 1.00 |
| 6 Jan | 41.2 | 22.8 | 0.71 | 0.71 | 0.51 | 1.30 |
| 7 Jan | 41.1 | 22.7 | 0.79 | 0.79 | 0.71 | 1.80 |
| 8 Jan | 41.1 | 22.6 | 0.91 | 0.91 | 0.79 | 2.00 |
| 9 Jan | 41.0 | 22.4 | 1.02 | 1.02 | 0.98 | 2.50 |
| 10 Jan | 41.0 | 22.3 | 1.10 | 1.10 | 1.10 | 2.80 |
| 11 Jan | 40.9 | 22.2 | 1.22 | 1.22 | 1.30 | 3.30 |
| 12 Jan | 40.8 | 22.1 | 1.34 | 1.34 | 1.50 | 3.80 |
| 13 Jan | 40.8 | 22.0 | 1.42 | 1.42 | 1.69 | 4.30 |
| 14 Jan | 40.8 | 21.9 | 1.54 | 1.54 | 1.81 | 4.60 |
| 15 Jan | 40.7 | 21.9 | 1.65 | 1.65 | 2.01 | 5.10 |
| 16 Jan | 40.7 | 21.8 | 1.77 | 1.77 | 2.20 | 5.60 |
| 17 Jan | 40.7 | 21.7 | 1.85 | 1.85 | 2.40 | 6.10 |
| 18 Jan | 40.6 | 21.7 | 1.97 | 1.97 | 2.52 | 6.40 |
| 19 Jan | 40.6 | 21.6 | 2.05 | 2.05 | 2.72 | 6.90 |
| 20 Jan | 40.6 | 21.6 | 2.17 | 2.17 | 2.91 | 7.40 |
| 21 Jan | 40.6 | 21.5 | 2.28 | 2.28 | 3.11 | 7.90 |
| 22 Jan | 40.6 | 21.5 | 2.40 | 2.40 | 3.19 | 8.10 |
| 23 Jan | 40.6 | 21.5 | 2.48 | 2.48 | 3.50 | 8.90 |
| 24 Jan | 40.6 | 21.5 | 2.60 | 2.60 | 3.70 | 9.40 |
| 25 Jan | 40.7 | 21.5 | 2.72 | 2.72 | 4.02 | 10.20 |
| 26 Jan | 40.7 | 21.5 | 2.83 | 2.83 | 4.29 | 10.90 |
| 27 Jan | 40.7 | 21.6 | 2.95 | 2.95 | 4.49 | 11.40 |
| 28 Jan | 40.8 | 21.6 | 3.03 | 3.03 | 4.88 | 12.40 |
| 29 Jan | 40.8 | 21.6 | 3.15 | 3.15 | 5.20 | 13.20 |
| 30 Jan | 40.9 | 21.7 | 3.27 | 3.27 | 5.51 | 14.00 |
| 31 Jan | 41.0 | 21.8 | 3.39 | 3.39 | 5.91 | 15.00 |
Weather history Norristown - June 2026
| Day | High ºF | Low ºF | Precip. inch | Snow inch | Snow d. inch |
|---|---|---|---|---|---|
| 01 Jun | 77.0 | 52.0 | 0.00 | 0.00 | 0.0 |
| 02 Jun | 78.1 | 48.0 | 0.00 | 0.00 | 0.0 |
| 03 Jun | 78.1 | 50.0 | 0.00 | 0.00 | 0.0 |
| 04 Jun | - | - | - | - | - |
| 05 Jun | 88.0 | 59.0 | 0.00 | 0.00 | 0.0 |
| 06 Jun | 91.9 | 63.0 | 0.00 | 0.00 | 0.0 |
| 07 Jun | 90.0 | 64.9 | 0.35 | 0.00 | 0.0 |
| 08 Jun | 87.1 | 62.1 | 0.00 | 0.00 | 0.0 |
| 09 Jun | 80.1 | 55.0 | 0.00 | 0.00 | 0.0 |
| 10 Jun | - | - | - | - | - |
| 11 Jun | - | - | - | - | - |
| 12 Jun | - | - | - | - | - |
| 13 Jun | - | - | - | - | - |
| 14 Jun | - | - | - | - | - |
| 15 Jun | - | - | - | - | - |
| 16 Jun | - | - | - | - | - |
| 17 Jun | - | - | - | - | - |
| 18 Jun | - | - | - | - | - |
| 19 Jun | - | - | - | - | - |
| 20 Jun | - | - | - | - | - |
| 21 Jun | - | - | - | - | - |
| 22 Jun | - | - | - | - | - |
| 23 Jun | - | - | - | - | - |
| 24 Jun | - | - | - | - | - |
| 25 Jun | - | - | - | - | - |
| 26 Jun | - | - | - | - | - |
| 27 Jun | - | - | - | - | - |
| 28 Jun | - | - | - | - | - |
| 29 Jun | - | - | - | - | - |
| 30 Jun | - | - | - | - | - |
Past weather Norristown
| Jun 26 | Normal | ||
|---|---|---|---|
| Average high temperature Av. high temp. | 83.8 ºF | 41 ºF | |
| Average low temperature Av. low temp. | 56.8 ºF | 22 ºF | |
| Total precipitation Total precip. | 0.35 inch | 3.40 inch | |
| Total snowfall Total snowfall | 0.00 inch | 6 inch | |
| Highest max temperature Highest max temp. | 91.9 ºF | - | |
| Lowest max temperature Lowest max temp. | 77.0 ºF | - | |
| Highest min temperature Highest min temp. | 64.9 ºF | - | |
| Lowest min temperature Lowest min temp. | 48.0 ºF | - | |
Past weather June 2026 incomplete - Missing data
Geo Norristown - Pennsylvania
| Country | United States | |
|---|---|---|
| State | Pennsylvania | |
| County | Montgomery | |
| City | Norristown | |
| Zip Code | 19401 | |
| Longitude | -75.34 dec. degr. | |
| Latitude | 40.11 dec. degr. | |
| Altitude - Elevation | 62ft | |
| ICAO | - | |
| IATA | - |
Date and Time Norristown - Pennsylvania
| Local Time | 02:17 AM | |
|---|---|---|
| Sunrise | 05:30 AM | |
| Sunset | 08:34 PM | |
| Day/Night | Night | |
| Timezone | New_York -5:00 | |
| Timezone DB | America - New York |
Map of Norristown - Pennsylvania
USGS National Map — Open interactive map
Norristown weather averages
| Annual high temperature | 65ºF |
| Annual low temperature | 43ºF |
| Average annual precip. | 48.38 inch |
| Av. annual snowfall | 25 inch |
Station Data
Monthly averages Norristown
Longitude: -75.34, Latitude: 40.11
Average weather Norristown, PA - 19401
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, ...