Antrim, NH climate
Antrim has cold, snowy winters and pleasant summers, with plenty of rain. A typical July afternoon reaches 79°, a January night drops to 12°, and about 80 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Antrim feels like
Winter
Spring
Summer
Fall
Antrim 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 | 30° | 12° | 3.4" | 20.1" | 13 | 27 | 11° – 28° |
| February | 33° | 13° | 3.2" | 16.7" | 11 | 27 | 10° – 29° |
| March | 41° | 21° | 3.9" | 17.4" | 13 | 23 | 24° – 41° |
| April | 55° | 32° | 4.0" | 4.6" | 12 | 5 | 39° – 48° |
| May | 67° | 42° | 3.8" | 0.1" | 13 | 0 | 49° – 60° |
| June | 75° | 52° | 4.5" | 0 | 13 | 0 | 61° – 67° |
| July | 79° | 57° | 4.4" | 0 | 12 | 0 | 64° – 72° |
| August | 78° | 55° | 4.3" | 0 | 11 | 0 | 63° – 71° |
| September | 70° | 48° | 4.2" | 0 | 11 | 0 | 55° – 63° |
| October | 58° | 37° | 5.5" | 0.6" | 12 | 0 | 43° – 54° |
| November | 46° | 28° | 4.0" | 3.0" | 11 | 3 | 32° – 42° |
| December | 35° | 19° | 4.4" | 17.5" | 13 | 20 | 21° – 37° |
| Year | 56° | 34° | 49.5" | 80.0" | 145 | 106 |
“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 Antrim
Antrim gets 49 inches of rain and melted snow a year. October is the wettest month and February the driest. Rain or snow falls on about 145 days a year. Snow covers the ground about 106 days of the year.
About 135 frost-free days a year
In half of years the last 32° night comes by May 15 and the first one by September 27. That leaves about 135 frost-free days for gardens, shorter than 92% of U.S. towns.
Heating and cooling a home in Antrim
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Antrim, 96% of that work is heating and 4% 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.
Antrim and its neighbors
Antrim borders 5 towns with climate data. January nights across them vary by 1.6°. Stoddard has the coldest January nights (11°) and Bennington the hottest July afternoons (81°). Antrim’s January low is 12° and its July high 79°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Antrim 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 Antrim averaged 1.8° warmer than the 1900s. The biggest change is in December (+3.5°). The shift is larger than in 86% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Antrim’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. February swings the most: between 1991 and 2020 its average temperature ranged from 10° to 29°. June is the most reliable, staying within 6°.
Common questions about Antrim’s climate
What is the coldest month in Antrim?
January, with a typical high of 30° and a low of 12°.
What is the hottest month in Antrim?
July, with a typical high of 79° and a low of 57°. About 3 days a year reach 90°.
How much snow does Antrim get?
About 80 inches in a normal winter, most of it in January.
When is the first frost in Antrim?
In half of years the first 32° night comes by September 27, and the last spring frost by May 15.
What is the rainiest month in Antrim?
October, with 5.5 inches of rain and melted snow. The year totals 49 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Antrim itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Marlow, NH (12 mi, snow) and Bradford 2, NH (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.