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Norristown, United States Snapshot 2026
Where is Norristown?
Norristown, United States
- Continent
- Americas
- Country
- United States
- City
- Norristown
- Population
- 34.4K
- Elevation
- 48 m
- Coordinates
- 40.12°, -75.34°
Norristown is a city in United States with a population of approximately 34.4K. Average temperatures range from -2°C (29°F) in January to 30°C (87°F) in July. The best time to visit is May, June, August, September, October.
Time in Norristown right now
Open full time & time zone page 14:37 37
Monday, June 15, 2026
IANA time zone
America/New_York
Daylight saving
DST in effect
EST / EDT
Next DST change
November 1
backward -1h
Live weather in Norristown
Daylight in Norristown today
View full sunrise & sunset page Sunrise
Sunset
Day length
15h 01m
Climate normals for Norristown
Long-term monthly averages based on historical data.
January
Poor 
February
Poor March
Poor April
Fair May best
Excellent June best
Excellent July
Fair August best
Good September best
Excellent October best
Good November
Fair December
Poor | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 5°C / -2°C | 1°C / -7°C | 10days (82 mm) Wet | 5.9h Fair | 66% Muggy | 2.3 Moderate | Poor | View Details |
| February | 8°C / -1°C | 4°C / -5°C | 10days (90 mm) Wet | 6.7h Fair | 67% Muggy | 3.2 Moderate | Poor | View Details |
| March | 12°C / 2°C | 9°C / -2°C | 11days (99 mm) Wet | 8.1h Good | 64% Muggy | 4.3 Moderate | Poor | View Details |
| April | 18°C / 7°C | 16°C / 4°C | 10days (101 mm) Wet | 9h Good | 65% Muggy | 5.1 High | Fair | View Details |
| May best | 22°C / 13°C | 22°C / 11°C | 13days (113 mm) Wet | 9.3h Good | 71% Muggy | 5.7 High | Excellent | View Details |
| June best | 27°C / 18°C | 29°C / 18°C | 11days (90 mm) Wet | 11.4h Excellent | 69% Muggy | 6.7 High | Excellent | View Details |
| July | 30°C / 22°C | 34°C / 24°C | 14days (125 mm) Wet | 11.7h Excellent | 73% Muggy | 7 High | Fair | View Details |
| August best | 29°C / 20°C | 31°C / 22°C | 12days (103 mm) Wet | 10.4h Excellent | 73% Muggy | 6.2 High | Good | View Details |
| September best | 26°C / 17°C | 26°C / 18°C | 9days (94 mm) Wet | 8.6h Good | 73% Muggy | 4.8 Moderate | Excellent | View Details |
| October best | 20°C / 11°C | 19°C / 10°C | 8days (88 mm) Wet | 7.5h Good | 72% Muggy | 4 Moderate | Good | View Details |
| November | 13°C / 5°C | 10°C / 1°C | 8days (73 mm) Wet | 7.1h Good | 68% Muggy | 2.7 Moderate | Fair | View Details |
| December | 7°C / 0°C | 3°C / -4°C | 10days (100 mm) Wet | 5.6h Fair | 70% Muggy | 2 Low | Poor | View Details |
Monthly Temperatures
HighLow
Line chart showing monthly temperatures. Jan: 5°C / -2°C . Feb: 8°C / -1°C . Mar: 12°C / 2°C . Apr: 18°C / 7°C . May: 22°C / 13°C . Jun: 27°C / 18°C . Jul: 30°C / 22°C . Aug: 29°C / 20°C . Sep: 26°C / 17°C . Oct: 20°C / 11°C . Nov: 13°C / 5°C . Dec: 7°C / 0°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 82 mm. Feb: 90 mm. Mar: 99 mm. Apr: 101 mm. May: 113 mm. Jun: 90 mm. Jul: 125 mm. Aug: 103 mm. Sep: 94 mm. Oct: 88 mm. Nov: 73 mm. Dec: 100 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 66%. Feb: 67%. Mar: 64%. Apr: 65%. May: 71%. Jun: 69%. Jul: 73%. Aug: 73%. Sep: 73%. Oct: 72%. Nov: 68%. Dec: 70%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 19 km/h . Feb: 19 km/h . Mar: 20 km/h . Apr: 20 km/h . May: 17 km/h . Jun: 16 km/h . Jul: 14 km/h . Aug: 14 km/h . Sep: 15 km/h . Oct: 16 km/h . Nov: 18 km/h . Dec: 18 km/h .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 2. Feb: UV 3. Mar: UV 4. Apr: UV 5. May: UV 6. Jun: UV 7. Jul: UV 7. Aug: UV 6. Sep: UV 5. Oct: UV 4. Nov: UV 3. Dec: UV 2.
Frequently Asked Questions
Norristown has a population of approximately 34.4K.
The best months to visit Norristown are May, June, August, September, October, when temperatures are pleasant and rainfall is lower.
Norristown receives approximately 1158mm of rainfall annually across 126 rainy days.
Norristown is located in United States, in the Americas region.
Norristown sits at an elevation of 48 m (157 ft) above sea level.