Historical Weather Records & Monthly Climate for Chelsea, MA

All-Time High
103°F
All-Time Low
-12°F
Max Daily Snow
23.6"
Max Daily Rain
7.06"
Max Snow Depth
31"

Monthly Climate Averages for Chelsea, MA

Based on 30 years of historical data (1994 - 2023)

MonthHigh (°F)Low (°F)Precip (in)Snow (in)
January27°10°2.92"13.38"
February30°12°2.7"14.31"
March39°21°3.25"13.78"
April52°33°3.78"6.26"
May64°45°3.92"0.56"
June73°55°4.72"0
July77°60°4.83"0
August76°59°3.85"0
September69°52°3.57"0
October56°41°4.47"1.94"
November44°30°3.29"7.22"
December33°19°3.72"14.44"

Historical Weather Extremes for Chelsea, MA

Based on 80+ years of archive data (1940 - 2024)

🔥
Longest Heatwave
6 Days
2020
Consecutive days ≥ 90°F
🧊
Deepest Freeze
18 Days
1956
Consecutive days ≤ 32°F
🏜️
Longest Drought
27 Days
1983
Consecutive days w/o rain
Wettest Month
17.09"
August 1955
Most rainfall in one month
Snowiest Month
64.8"
February 2015
Most snowfall in one month

More Historical Climate Data for Cities in


MA