Old Saybrook Center has chilly winters and pleasant summers
A typical July afternoon reaches 82°, a January night drops to 23°, and about 25 inches of snow falls in a normal winter.
A year in Old Saybrook Center at a glance
Each month’s typical high and low, and what it brings.
What stands out about Old Saybrook Center’s climate
Read from where Old Saybrook Center sits among Connecticut’s towns. The page puts what stands out first.
Living with Old Saybrook Center’s climate
What the numbers mean for a garden, a driveway, a furnace and a free afternoon.
221 frost-free days. The last frost comes by Apr 6 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Nov 17.
About 25" a winter over 8 days with an inch or more, most in February. Snow covers the ground about 21 days a year.
Months averaging under 55° run from October through April. Heating is 87% of the year’s heating-and-cooling load.
About 3 days a year reach 90°, and July afternoons average 82°.
The nicest months are May, June, July, August, September and October. 0.7 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 →25 inches of snow, 46 of rain and melt
October is the wettest month and February the driest. Rain or snow falls on about 128 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
What a year in Old Saybrook Center feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 221 frost-free days a year
In half of years the last 32° night comes by April 6 and the first by November 17.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
Old Saybrook Center and its neighbors
Old Saybrook has the coldest January nights next door (22°) and Old Saybrook the hottest July afternoons (82°). 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 Old Saybrook Center averaged 2.0° warmer than the 1900s. The biggest change is in December (+3.6°).
A bigger shift than in 93% of U.S. towns.
Change by month
How Old Saybrook Center compares
Against every U.S. town on TownTapestry, each counted once, with its place in Connecticut.
Old Saybrook Center 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 | 39° | 23° | 3.5" | 5.8" | 11 | 7 | 23° – 37° |
| February | 41° | 24° | 3.0" | 8.3" | 10 | 7 | 20° – 38° |
| March | 47° | 30° | 4.0" | 3.9" | 12 | 3 | 34° – 47° |
| April | 58° | 39° | 4.2" | 0.8" | 12 | 0 | 45° – 53° |
| May | 68° | 48° | 3.6" | 0 | 12 | 0 | 54° – 62° |
| June | 76° | 58° | 3.9" | 0 | 10 | 0 | 64° – 70° |
| July | 82° | 65° | 3.2" | 0 | 10 | 0 | 69° – 76° |
| August | 81° | 64° | 3.8" | 0 | 9 | 0 | 69° – 76° |
| September | 74° | 57° | 4.1" | 0 | 10 | 0 | 63° – 69° |
| October | 64° | 46° | 4.5" | 0 | 10 | 0 | 51° – 61° |
| November | 53° | 37° | 3.7" | 0.5" | 10 | 0 | 41° – 49° |
| December | 44° | 29° | 4.3" | 5.2" | 12 | 4 | 30° – 47° |
| Year | 61° | 43° | 45.8" | 24.5" | 128 | 21 |
Heating and cooling a home in Old Saybrook Center
87% 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 Old Saybrook Center’s climate
What is the coldest month in Old Saybrook Center?
January, with a typical high of 39° and a low of 23°.
What is the hottest month in Old Saybrook Center?
July, with a typical high of 82° and a low of 65°. About 3 days a year reach 90°.
How much snow does Old Saybrook Center get?
About 25 inches in a normal winter, most of it in February.
When is the first frost in Old Saybrook Center?
In half of years the first 32° night comes by November 17, and the last spring frost by April 6.
What is the rainiest month in Old Saybrook Center?
October, with 4.5 inches of rain and melted snow. The year totals 46 inches.
Neighbors talk weather
Gardens, snow, and the best days of the year in Old Saybrook Center.
Your answer becomes a post in Town Square.
Temperatures and rainfall come from NOAA’s gridded climate normals for Old Saybrook Center itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Groton, CT (17 mi, snow) and Orient Pt Sp, NY (12 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.