Cornwall Bridge has chilly, snowy winters and pleasant summers, with plenty of rain
A typical July afternoon reaches 82°, a January night drops to 15°, and about 59 inches of snow falls in a normal winter.
A year in Cornwall Bridge at a glance
Each month’s typical high and low, and what it brings.
What stands out about Cornwall Bridge’s climate
Read from where Cornwall Bridge sits among Connecticut’s towns. The page puts what stands out first.
Living with Cornwall Bridge’s climate
What the numbers mean for a garden, a driveway, a furnace and a free afternoon.
146 frost-free days. The last frost comes by May 11 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Oct 4.
About 59" a winter over 15 days with an inch or more, most in February. Snow covers the ground about 80 days a year.
Months averaging under 55° run from October through April. Heating is 92% of the year’s heating-and-cooling load.
About 12 days a year reach 90°, and July afternoons average 82°.
The nicest months are May, June, July, August and September. 0.2 miles of trails are waiting.
Parks & trails →Normals are averages. Ice storms, nor’easters, floods and heat waves are on the natural hazards page.
Natural hazards →59 inches of snow, 48 of rain and melt
October is the wettest month and February the driest. Rain or snow falls on about 143 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
About 146 frost-free days a year
In half of years the last 32° night comes by May 11 and the first by October 4.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
What a year in Cornwall Bridge feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
Cornwall Bridge and its neighbors
Cornwall has the coldest January nights next door (15°) and Kent the hottest July afternoons (81°). Tap a town to see its climate.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value. Snow and frost-free days come from the nearest weather station, so neighbors often share them.
Warmer than it used to be
The last 30 years in Cornwall Bridge averaged 1.9° warmer than the 1900s. The biggest change is in December (+3.4°).
A bigger shift than in 90% of U.S. towns.
Change by month
How Cornwall Bridge compares
Against every U.S. town on TownTapestry, each counted once, with its place in Connecticut.
Cornwall Bridge 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 | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 33° | 15° | 3.4" | 13.1" | 13 | 23 | 15° – 31° |
| February | 37° | 17° | 2.8" | 15.8" | 10 | 21 | 13° – 33° |
| March | 45° | 24° | 3.7" | 12.7" | 12 | 17 | 27° – 46° |
| April | 58° | 34° | 3.6" | 2.6" | 13 | 2 | 41° – 50° |
| May | 69° | 45° | 3.9" | 0 | 14 | 0 | 52° – 63° |
| June | 77° | 54° | 4.6" | 0 | 13 | 0 | 63° – 69° |
| July | 82° | 59° | 4.5" | 0 | 12 | 0 | 66° – 74° |
| August | 80° | 57° | 4.4" | 0 | 11 | 0 | 65° – 72° |
| September | 72° | 50° | 4.7" | 0 | 11 | 0 | 58° – 66° |
| October | 61° | 39° | 4.7" | 0.3" | 12 | 0 | 45° – 56° |
| November | 49° | 30° | 3.6" | 2.6" | 11 | 2 | 35° – 44° |
| December | 38° | 21° | 4.1" | 12.0" | 13 | 15 | 23° – 42° |
| Year | 58° | 37° | 48.0" | 59.1" | 143 | 80 |
Heating and cooling a home in Cornwall Bridge
92% of the work is heating, so the furnace matters far more than the air conditioner.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. Source: NOAA station normals.
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 13° to 33°. June is the most reliable, staying within 6°.
Common questions about Cornwall Bridge’s climate
What is the coldest month in Cornwall Bridge?
January, with a typical high of 33° and a low of 15°.
What is the hottest month in Cornwall Bridge?
July, with a typical high of 82° and a low of 59°. About 12 days a year reach 90°.
How much snow does Cornwall Bridge get?
About 59 inches in a normal winter, most of it in February.
When is the first frost in Cornwall Bridge?
In half of years the first 32° night comes by October 4, and the last spring frost by May 11.
What is the rainiest month in Cornwall Bridge?
October, with 4.7 inches of rain and melted snow. The year totals 48 inches.
Neighbors talk weather
Gardens, snow, and the best days of the year in Cornwall Bridge.
Your answer becomes a post in Town Square.
Temperatures and rainfall come from NOAA’s gridded climate normals for Cornwall Bridge itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Bakersville, CT (19 mi, snow) and Falls Village, CT (10 mi, frost, heat and degree days). Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000. Today’s forecast: National Weather Service.