Chelsea, VT climate
Chelsea has cold, snowy winters and pleasant summers. A typical July afternoon reaches 79°, a January night drops to 7°, and about 89 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Chelsea feels like
Winter
Spring
Summer
Fall
Chelsea weather by month
Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | 30-yr range |
|---|---|---|---|---|---|---|
| January | 27° | 7° | 2.9" | 17.1" | 12 | 6° – 26° |
| February | 31° | 9° | 2.4" | 21.5" | 10 | 6° – 27° |
| March | 40° | 18° | 2.9" | 17.1" | 11 | 19° – 39° |
| April | 53° | 29° | 3.2" | 5.1" | 12 | 36° – 46° |
| May | 67° | 40° | 3.6" | 0.3" | 15 | 48° – 59° |
| June | 75° | 50° | 4.4" | 0 | 15 | 59° – 67° |
| July | 79° | 54° | 4.6" | 0 | 13 | 62° – 71° |
| August | 77° | 53° | 4.2" | 0 | 11 | 62° – 68° |
| September | 70° | 45° | 3.5" | 0 | 10 | 53° – 62° |
| October | 57° | 35° | 4.3" | 1.1" | 14 | 41° – 53° |
| November | 44° | 26° | 3.1" | 4.0" | 12 | 30° – 41° |
| December | 33° | 15° | 3.4" | 22.6" | 15 | 17° – 35° |
| Year | 54° | 32° | 42.6" | 88.8" | 151 |
“Wet days” have at least 0.01" of rain or melted snow. “Snow on ground” counts days with 1" or more. The 30-year range is the coldest and warmest that month’s average temperature got between 1991 and 2020.
Rain and snow in Chelsea
Chelsea gets 43 inches of rain and melted snow a year. July is the wettest month and February the driest. Rain or snow falls on about 151 days a year.
About 143 frost-free days a year
In half of years the last 32° night comes by May 9 and the first one by October 1. That leaves about 143 frost-free days for gardens, shorter than 87% of U.S. towns.
Heating and cooling a home in Chelsea
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Chelsea, 98% of that work is heating and 2% is cooling, so the furnace matters far more than the air conditioner.
Degree days measure how far each day’s average temperature falls below or rises above 65°, added up over a year. Source: NOAA station normals.
Chelsea and its neighbors
Chelsea borders 4 towns with climate data. January nights across them vary by 1.6°. Washington has the coldest January nights (6°) and Tunbridge the hottest July afternoons (80°). Chelsea’s January low is 7° and its July high 79°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Chelsea compares
Compared with every U.S. town and city on TownTapestry, each counted once.
Warmer than it used to be
The last 30 years in Chelsea averaged 1.7° warmer than the 1900s. The biggest change is in December (+4.0°). The shift is larger than in 80% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Chelsea’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. January swings the most: between 1991 and 2020 its average temperature ranged from 6° to 26°. August is the most reliable, staying within 6°.
Common questions about Chelsea’s climate
What is the coldest month in Chelsea?
January, with a typical high of 27° and a low of 7°.
What is the hottest month in Chelsea?
July, with a typical high of 79° and a low of 54°.
How much snow does Chelsea get?
About 89 inches in a normal winter, most of it in December.
When is the first frost in Chelsea?
In half of years the first 32° night comes by October 1, and the last spring frost by May 9.
What is the rainiest month in Chelsea?
July, with 4.6 inches of rain and melted snow. The year totals 43 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Chelsea itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Chelsea 2 Nw, VT (1 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.