Hermon, NY climate
Hermon has cold, snowy winters and pleasant summers. A typical July afternoon reaches 79°, a January night drops to 8°, and about 92 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Hermon feels like
Winter
Spring
Summer
Fall
Hermon 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 | 27° | 8° | 3.0" | 23.7" | 17 | 27 | 1° – 27° |
| February | 30° | 9° | 2.4" | 23.0" | 13 | 26 | 4° – 27° |
| March | 39° | 19° | 2.7" | 15.1" | 13 | 19 | 20° – 41° |
| April | 53° | 32° | 3.3" | 4.2" | 13 | 3 | 37° – 48° |
| May | 67° | 44° | 3.4" | 0.1" | 12 | 0 | 50° – 61° |
| June | 75° | 53° | 4.0" | 0 | 12 | 0 | 61° – 70° |
| July | 79° | 58° | 3.9" | 0 | 11 | 0 | 64° – 73° |
| August | 78° | 56° | 3.6" | 0 | 10 | 0 | 64° – 71° |
| September | 71° | 49° | 4.2" | 0 | 11 | 0 | 55° – 65° |
| October | 57° | 38° | 4.5" | 0.8" | 14 | 0 | 43° – 54° |
| November | 45° | 28° | 3.4" | 7.2" | 14 | 6 | 30° – 42° |
| December | 33° | 16° | 3.3" | 18.3" | 17 | 20 | 15° – 37° |
| Year | 54° | 34° | 41.6" | 92.4" | 156 | 101 |
“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 Hermon
Hermon gets 42 inches of rain and melted snow a year. October is the wettest month and February the driest. Rain or snow falls on about 156 days a year. Snow covers the ground about 101 days of the year.
About 134 frost-free days a year
In half of years the last 32° night comes by May 14 and the first one by September 26. That leaves about 134 frost-free days for gardens, shorter than 93% of U.S. towns.
Heating and cooling a home in Hermon
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Hermon, 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.
Hermon and its neighbors
Hermon borders 5 towns with climate data. January nights across them vary by 1.1°. Russell has the coldest January nights (7°) and De Kalb the hottest July afternoons (80°). Hermon’s January low is 8° and its July high 79°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Hermon 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 Hermon averaged 1.9° warmer than the 1900s. The biggest change is in December (+4.2°). The shift is larger than in 92% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Hermon’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. January swings the most: between 1991 and 2020 its average temperature ranged from 1° to 27°. August is the most reliable, staying within 7°.
Common questions about Hermon’s climate
What is the coldest month in Hermon?
January, with a typical high of 27° and a low of 8°.
What is the hottest month in Hermon?
July, with a typical high of 79° and a low of 58°. About 3 days a year reach 90°.
How much snow does Hermon get?
About 92 inches in a normal winter, most of it in January.
When is the first frost in Hermon?
In half of years the first 32° night comes by September 26, and the last spring frost by May 14.
What is the rainiest month in Hermon?
October, with 4.5 inches of rain and melted snow. The year totals 42 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Hermon itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Gouverneur 3 Nw, NY (11 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.