Guilford Center has chilly winters and pleasant summers
A typical July afternoon reaches 83°, a January night drops to 23°.
A year in Guilford Center at a glance
Each month’s typical high and low, and what it brings.
What stands out about Guilford Center’s climate
Read from where Guilford Center sits among Connecticut’s towns. The page puts what stands out first.
What a year in Guilford Center feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
Rain and snow in Guilford Center
October is the wettest month and February the driest.
Rain + melted snow by month
Inches of water
Snowfall by month
No snow records from a nearby station.
Living with Guilford Center’s climate
What the numbers mean for a garden, a driveway, a furnace and a free afternoon.
193 frost-free days. The last frost comes by Apr 17 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 27.
Months averaging under 55° run from November through April. Heating is 88% of the year’s heating-and-cooling load.
About 6 days a year reach 90°, and July afternoons average 83°.
The nicest months are May, June, July, August, September and October. 1.6 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 →About 193 frost-free days a year
In half of years the last 32° night comes by April 17 and the first by October 27.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
Guilford Center and its neighbors
Guilford has the coldest January nights next door (20°) and Guilford the hottest July afternoons (84°). 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 Guilford Center averaged 1.8° warmer than the 1900s. The biggest change is in December (+3.3°).
A bigger shift than in 86% of U.S. towns.
Change by month
How Guilford Center compares
Against every U.S. town on TownTapestry, each counted once, with its place in Connecticut.
Guilford Center weather by month
Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.
| Month | High | Low | Rain + melt | 30-yr range |
|---|---|---|---|---|
| January | 39° | 23° | 3.4" | 22° – 37° |
| February | 41° | 24° | 3.0" | 20° – 38° |
| March | 48° | 31° | 4.2" | 34° – 47° |
| April | 59° | 39° | 4.2" | 45° – 53° |
| May | 69° | 49° | 3.6" | 54° – 63° |
| June | 77° | 59° | 4.2" | 65° – 71° |
| July | 83° | 65° | 3.8" | 70° – 78° |
| August | 82° | 64° | 3.6" | 69° – 77° |
| September | 75° | 57° | 4.1" | 63° – 71° |
| October | 64° | 46° | 4.3" | 52° – 61° |
| November | 53° | 37° | 3.7" | 40° – 49° |
| December | 44° | 29° | 4.1" | 30° – 47° |
| Year | 61° | 44° | 46.3" |
Heating and cooling a home in Guilford Center
88% 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 20° to 38°. June is the most reliable, staying within 6°.
Common questions about Guilford Center’s climate
What is the coldest month in Guilford Center?
January, with a typical high of 39° and a low of 23°.
What is the hottest month in Guilford Center?
July, with a typical high of 83° and a low of 65°. About 6 days a year reach 90°.
When is the first frost in Guilford Center?
In half of years the first 32° night comes by October 27, and the last spring frost by April 17.
What is the rainiest month in Guilford Center?
October, with 4.3 inches of rain and melted snow. The year totals 46 inches.
Neighbors talk weather
Gardens, snow, and the best days of the year in Guilford Center.
Your answer becomes a post in Town Square.
Temperatures and rainfall come from NOAA’s gridded climate normals for Guilford Center itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at New Haven Tweed Airport, CT (11 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.