Norristown, us-Pennsylvania State, USA Weather Information
Local Time
2026-03-07 03:18:11 Eastern Standard TimeWeather in the past year
Sun & Astronomy
In Norristown, us-Pennsylvania State, USA, today's sunrise time is 06:23, sunset time is 18:00, nautical twilight begins at 05:26, nautical twilight ends at 18:58, astronomical twilight begins at 04:55, astronomical twilight ends at 19:29.
Temperature Analysis
In Norristown, us-Pennsylvania State, USA region, the lowest temperature occurs in January 2025, with an average temperature of about -2.6°C.
The highest temperature occurs in July 2025, with a maximum temperature of up to 25.8°C.
Based on historical data, the average temperature in January is -2.6°C, February is 0.8°C, March is 8°C, April is 12.8°C, May is 17°C, June is 23°C, July is 25.8°C, August is 22.4°C, September is 20.6°C, October is 13.7°C, November is 7.3°C, December is -0.3°C.
Wind Analysis
In Norristown, us-Pennsylvania State, USA region, the lowest wind speed occurs in July 2025, with an average wind speed of about 32.6 km/h.
The highest wind speed occurs in March 2025, with a maximum wind speed of up to 49.5 km/h.
Based on historical data, the average wind speed in January is 46.6 km/h, February is 45.1 km/h, March is 49.5 km/h, April is 47.4 km/h, May is 43.7 km/h, June is 35.1 km/h, July is 32.6 km/h, August is 33.4 km/h, September is 33.5 km/h, October is 40.9 km/h, November is 47 km/h, December is 42.8 km/h.
Sunshine Duration Analysis
In Norristown, us-Pennsylvania State, USA region, the lowest sunshine duration occurs in December 2025, with an average sunshine duration of about 5.4 hours.
The highest sunshine duration occurs in July 2025, with a maximum sunshine duration of up to 11.1 hours.
Based on historical data, the average sunshine duration in January is 6.7 hours, February is 6.4 hours, March is 9 hours, April is 8 hours, May is 8.4 hours, June is 9.5 hours, July is 11.1 hours, August is 10.4 hours, September is 8.9 hours, October is 8.1 hours, November is 6.5 hours, December is 5.4 hours.
Precipitation Analysis
In Norristown, us-Pennsylvania State, USA region, the lowest precipitation occurs in August 2025, with an average precipitation of about 0.8 mm.
The highest precipitation occurs in May 2025, with a maximum precipitation of up to 5.5 mm.
Based on historical data, the average precipitation in January is 1.1 mm, February is 2.5 mm, March is 3.3 mm, April is 2.9 mm, May is 5.5 mm, June is 2.1 mm, July is 4.9 mm, August is 0.8 mm, September is 2.3 mm, October is 2.4 mm, November is 1.8 mm, December is 2.4 mm.