Higganum has chilly winters and pleasant summers
A typical July afternoon reaches 84°, a January night drops to 20°.
A year in Higganum at a glance
Each month’s typical high and low, and what it brings.
What a year in Higganum feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
Rain and snow in Higganum
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.
About 175 frost-free days a year
In half of years the last 32° night comes by April 26 and the first by October 16.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
Living with Higganum’s climate
What the numbers mean for a garden, a driveway, a furnace and a free afternoon.
175 frost-free days. The last frost comes by Apr 26 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 16.
Months averaging under 55° run from October through April. Heating is 89% of the year’s heating-and-cooling load.
About 15 days a year reach 90°, and July afternoons average 84°.
The nicest months are May, June, July, August, September and October. 15 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 →Higganum and its neighbors
Haddam has the coldest January nights next door (20°) and Middletown the hottest July afternoons (85°). 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 Higganum averaged 1.9° warmer than the 1900s. The biggest change is in December (+3.4°).
A bigger shift than in 92% of U.S. towns.
Change by month
How Higganum compares
Against every U.S. town on TownTapestry, each counted once, with its place in Connecticut.
Higganum 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 | 37° | 20° | 3.7" | 20° – 35° |
| February | 40° | 21° | 3.1" | 16° – 37° |
| March | 47° | 28° | 4.1" | 31° – 46° |
| April | 59° | 37° | 4.1" | 44° – 53° |
| May | 70° | 47° | 3.4" | 53° – 63° |
| June | 78° | 56° | 4.3" | 64° – 70° |
| July | 84° | 63° | 3.7" | 69° – 77° |
| August | 82° | 61° | 4.0" | 68° – 75° |
| September | 75° | 54° | 4.1" | 61° – 69° |
| October | 63° | 42° | 4.5" | 49° – 60° |
| November | 52° | 33° | 3.9" | 38° – 47° |
| December | 42° | 25° | 4.3" | 27° – 44° |
| Year | 61° | 41° | 47.3" |
Heating and cooling a home in Higganum
89% 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 16° to 37°. June is the most reliable, staying within 6°.
Common questions about Higganum’s climate
What is the coldest month in Higganum?
January, with a typical high of 37° and a low of 20°.
What is the hottest month in Higganum?
July, with a typical high of 84° and a low of 63°. About 15 days a year reach 90°.
When is the first frost in Higganum?
In half of years the first 32° night comes by October 16, and the last spring frost by April 26.
What is the rainiest month in Higganum?
October, with 4.5 inches of rain and melted snow. The year totals 47 inches.
Neighbors talk weather
Gardens, snow, and the best days of the year in Higganum.
Your answer becomes a post in Town Square.
Temperatures and rainfall come from NOAA’s gridded climate normals for Higganum itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Meriden Markham Municipal Airport, CT (14 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.