Hot-summer humid continental climate
Climate Norristown - Pennsylvania
Annual high65ºF
Annual low43ºF
Precipitation48.38 inch
| Month | HighºF | LowºF | Precipinch | Snowinch |
|---|---|---|---|---|
| Jan | 41 | 22 | 3.40 | 6 |
| Feb | 44 | 24 | 3.06 | 12 |
| Mar | 53 | 31 | 4.00 | 2 |
| Apr | 64 | 41 | 4.03 | 1 |
| May | 75 | 51 | 4.21 | 0 |
| Jun | 83 | 61 | 3.98 | 0 |
| Jul | 88 | 66 | 4.76 | 0 |
| Aug | 87 | 64 | 4.37 | 0 |
| Sep | 80 | 56 | 4.87 | 0 |
| Oct | 68 | 44 | 3.73 | 0 |
| Nov | 57 | 35 | 3.80 | 0 |
| Dec | 45 | 27 | 4.17 | 4 |
- JanHigh 41ºFLow 22ºFPrecip 3.40 inch
- FebHigh 44ºFLow 24ºFPrecip 3.06 inch
- MarHigh 53ºFLow 31ºFPrecip 4.00 inch
- AprHigh 64ºFLow 41ºFPrecip 4.03 inch
- MayHigh 75ºFLow 51ºFPrecip 4.21 inch
- JunHigh 83ºFLow 61ºFPrecip 3.98 inch
- JulHigh 88ºFLow 66ºFPrecip 4.76 inch
- AugHigh 87ºFLow 64ºFPrecip 4.37 inch
- SepHigh 80ºFLow 56ºFPrecip 4.87 inch
- OctHigh 68ºFLow 44ºFPrecip 3.73 inch
- NovHigh 57ºFLow 35ºFPrecip 3.80 inch
- DecHigh 45ºFLow 27ºFPrecip 4.17 inch
Climate summary
What is the average weather in Norristown, Pennsylvania?
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 weather averages
Annual high65ºF
Annual low43ºF
Precipitation48.38 inch
Snowfall25 inch
Daily normals Norristown - Pennsylvania - January
| Day | HighºF | LowºF | Prec/ | Prec/ | Snow/ | Snow/ |
|---|---|---|---|---|---|---|
| Jan 1 | 42.9 | 24.7 | 0.13 | 0.13 | 0.10 | 0.10 |
| Jan 2 | 42.8 | 24.4 | 0.26 | 0.26 | 0.20 | 0.20 |
| Jan 3 | 42.7 | 24.2 | 0.39 | 0.39 | 0.30 | 0.30 |
| Jan 4 | 42.5 | 24.0 | 0.52 | 0.52 | 0.40 | 0.40 |
| Jan 5 | 42.4 | 23.8 | 0.64 | 0.64 | 0.50 | 0.50 |
| Jan 6 | 42.3 | 23.6 | 0.77 | 0.77 | 0.60 | 0.60 |
| Jan 7 | 42.2 | 23.4 | 0.89 | 0.89 | 0.70 | 0.70 |
| Jan 8 | 42.1 | 23.3 | 1.00 | 1.00 | 0.80 | 0.80 |
| Jan 9 | 42.0 | 23.1 | 1.11 | 1.11 | 1.00 | 1.00 |
| Jan 10 | 41.9 | 22.9 | 1.23 | 1.23 | 1.30 | 1.30 |
| Jan 11 | 41.8 | 22.8 | 1.35 | 1.35 | 1.50 | 1.50 |
| Jan 12 | 41.7 | 22.6 | 1.46 | 1.46 | 1.70 | 1.70 |
| Jan 13 | 41.6 | 22.5 | 1.58 | 1.58 | 1.90 | 1.90 |
| Jan 14 | 41.6 | 22.4 | 1.70 | 1.70 | 2.20 | 2.20 |
| Jan 15 | 41.5 | 22.2 | 1.81 | 1.81 | 2.40 | 2.40 |
| Jan 16 | 41.4 | 22.1 | 1.92 | 1.92 | 2.60 | 2.60 |
| Jan 17 | 41.4 | 22.0 | 2.04 | 2.04 | 2.80 | 2.80 |
| Jan 18 | 41.3 | 22.0 | 2.14 | 2.14 | 3.00 | 3.00 |
| Jan 19 | 41.3 | 21.9 | 2.25 | 2.25 | 3.20 | 3.20 |
| Jan 20 | 41.3 | 21.9 | 2.36 | 2.36 | 3.40 | 3.40 |
| Jan 21 | 41.2 | 21.8 | 2.48 | 2.48 | 3.60 | 3.60 |
| Jan 22 | 41.2 | 21.8 | 2.59 | 2.59 | 3.90 | 3.90 |
| Jan 23 | 41.2 | 21.8 | 2.71 | 2.71 | 4.10 | 4.10 |
| Jan 24 | 41.2 | 21.8 | 2.83 | 2.83 | 4.40 | 4.40 |
| Jan 25 | 41.2 | 21.8 | 2.95 | 2.95 | 4.70 | 4.70 |
| Jan 26 | 41.2 | 21.8 | 3.07 | 3.07 | 5.00 | 5.00 |
| Jan 27 | 41.2 | 21.9 | 3.18 | 3.18 | 5.30 | 5.30 |
| Jan 28 | 41.3 | 21.9 | 3.30 | 3.30 | 5.60 | 5.60 |
| Jan 29 | 41.3 | 22.0 | 3.41 | 3.41 | 6.00 | 6.00 |
| Jan 30 | 41.4 | 22.1 | 3.54 | 3.54 | 6.40 | 6.40 |
| Jan 31 | 41.4 | 22.2 | 3.66 | 3.66 | 6.80 | 6.80 |
Precipitation and snow add up through the month (/mo) and the year (/yr)
Weather history Norristown - October 2026
| Day | HighºF | LowºF | Precip.inch |
|---|---|---|---|
| Oct 1 | 79.0 | 64.0 | 0.00 |
| Oct 2 | 84.9 | 64.0 | 0.00 |
| Oct 3 | – | – | – |
| Oct 4 | – | – | – |
| Oct 5 | – | – | – |
| Oct 6 | – | – | – |
| Oct 7 | – | – | – |
| Oct 8 | 71.1 | 42.1 | 0.00 |
| Oct 9 | 77.0 | 46.9 | 0.00 |
| Oct 10 | 73.9 | 46.0 | 0.00 |
| Oct 11 | 73.0 | 46.9 | 0.11 |
| Oct 12 | 63.0 | 57.0 | 2.03 |
| Oct 13 | 77.0 | 54.0 | 0.00 |
| Oct 14 | 82.0 | 55.0 | 0.00 |
| Oct 15 | 82.0 | 54.0 | 0.06 |
| Oct 16 | 71.1 | 54.0 | 0.02 |
| Oct 17 | 79.0 | 53.1 | 0.27 |
| Oct 18 | 53.1 | 36.0 | 0.00 |
| Oct 19 | – | – | – |
| Oct 20 | 70.0 | 36.0 | 0.00 |
| Oct 21 | 71.1 | 39.9 | 0.00 |
| Oct 22 | 66.0 | 39.0 | 0.00 |
| Oct 23 | – | – | – |
| Oct 24 | 63.0 | 33.1 | 0.00 |
| Oct 25 | 66.0 | 35.1 | 0.00 |
| Oct 26 | 70.0 | 35.1 | 0.00 |
| Oct 27 | – | – | – |
| Oct 28 | – | – | – |
| Oct 29 | – | – | – |
| Oct 30 | – | – | – |
| Oct 31 | – | – | – |
The data for October 2026 is incomplete: some days or values are missing.
- –No data
- –Not yet observed or received
- TTrace, too small to measure
Observed extremes
- Highest max temperature84.9ºF · Oct 2
- Lowest max temperature53.1ºF · Oct 18
- Highest min temperature64.0ºF · Oct 1
- Lowest min temperature33.1ºF · Oct 24
Geo Norristown - Pennsylvania
Location
- Country
- United States
- State
- Pennsylvania
- County
- Montgomery
- City
- Norristown
- Zip Code
- 19401
- Elevation
- 62 ft
- Longitude
- -75.34
- Latitude
- 40.11
- ICAO
- –
- IATA
- –