Waltham, us-Massachusetts State, USA Weather Information
Local Time
2026-02-15 00:54:11 Eastern Standard TimeWeather in the past year
Sun & Astronomy
In Waltham, us-Massachusetts State, USA, today's sunrise time is 06:39, sunset time is 17:18, nautical twilight begins at 05:39, nautical twilight ends at 18:18, astronomical twilight begins at 05:06, astronomical twilight ends at 18:51.
Temperature Analysis
In Waltham, us-Massachusetts State, USA region, the lowest temperature occurs in January 2025, with an average temperature of about -3.7°C.
The highest temperature occurs in July 2025, with a maximum temperature of up to 24°C.
Based on historical data, the average temperature in January is -3.7°C, February is -2.9°C, March is 4.7°C, April is 9.7°C, May is 14.6°C, June is 20.7°C, July is 24°C, August is 21°C, September is 18.1°C, October is 12.2°C, November is 5.1°C, December is -1.6°C.
Wind Analysis
In Waltham, us-Massachusetts State, USA region, the lowest wind speed occurs in September 2025, with an average wind speed of about 31 km/h.
The highest wind speed occurs in March 2025, with a maximum wind speed of up to 48.1 km/h.
Based on historical data, the average wind speed in January is 45.9 km/h, February is 42.8 km/h, March is 48.1 km/h, April is 45.3 km/h, May is 41.9 km/h, June is 35.5 km/h, July is 35.6 km/h, August is 32.9 km/h, September is 31 km/h, October is 38.7 km/h, November is 42.6 km/h, December is 45.3 km/h.
Sunshine Duration Analysis
In Waltham, us-Massachusetts State, USA region, the lowest sunshine duration occurs in December 2025, with an average sunshine duration of about 5.6 hours.
The highest sunshine duration occurs in August 2025, with a maximum sunshine duration of up to 11.6 hours.
Based on historical data, the average sunshine duration in January is 6.9 hours, February is 6.5 hours, March is 7.3 hours, April is 8 hours, May is 7.8 hours, June is 9.7 hours, July is 10.7 hours, August is 11.6 hours, September is 9.5 hours, October is 7.5 hours, November is 6.2 hours, December is 5.6 hours.
Precipitation Analysis
In Waltham, us-Massachusetts State, USA region, the lowest precipitation occurs in June 2025, with an average precipitation of about 1.7 mm.
The highest precipitation occurs in May 2025, with a maximum precipitation of up to 5.7 mm.
Based on historical data, the average precipitation in January is 1.9 mm, February is 2.9 mm, March is 3.1 mm, April is 2.5 mm, May is 5.7 mm, June is 1.7 mm, July is 4.9 mm, August is 1.7 mm, September is 1.7 mm, October is 3.5 mm, November is 2 mm, December is 2 mm.