Montpelier, ID climate
Montpelier has cold, snowy winters and warm summers, with very little rain. A typical July afternoon reaches 84°, a January night drops to 8°, and about 91 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Montpelier feels like
Winter
Spring
Summer
Fall
Montpelier 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° | 8° | 1.3" | 23.3" | 12 | 31 | 12° – 26° |
| February | 33° | 9° | 1.4" | 19.0" | 11 | 27 | 14° – 31° |
| March | 43° | 19° | 1.1" | 9.2" | 11 | 25 | 25° – 38° |
| April | 54° | 27° | 1.2" | 4.9" | 12 | 5 | 34° – 46° |
| May | 64° | 35° | 1.8" | 1.3" | 12 | 0 | 43° – 55° |
| June | 74° | 41° | 1.2" | 0.1" | 8 | 0 | 52° – 63° |
| July | 84° | 47° | 0.7" | 0 | 5 | 0 | 57° – 70° |
| August | 83° | 45° | 0.9" | 0 | 6 | 0 | 59° – 67° |
| September | 73° | 37° | 1.2" | 0.1" | 7 | 0 | 51° – 59° |
| October | 58° | 27° | 1.2" | 2.9" | 9 | 1 | 34° – 49° |
| November | 43° | 18° | 0.9" | 9.2" | 10 | 8 | 22° – 36° |
| December | 31° | 9° | 1.4" | 20.6" | 13 | 25 | 14° – 26° |
| Year | 56° | 27° | 14.1" | 90.6" | 116 | 122 |
“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 Montpelier
Montpelier gets 14 inches of rain and melted snow a year. May is the wettest month and July the driest. Rain or snow falls on about 116 days a year. Snow covers the ground about 122 days of the year.
About 77 frost-free days a year
In half of years the last 32° night comes by June 17 and the first one by September 3. That leaves about 77 frost-free days for gardens, shorter than 100% of U.S. towns.
Heating and cooling a home in Montpelier
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Montpelier, 98% of that work is heating and 2% 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.
How Montpelier 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 Montpelier averaged 1.7° warmer than the 1900s. The biggest change is in March (+4.0°). The shift is larger than in 81% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Montpelier’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 14° to 31°. September is the most reliable, staying within 8°.
Common questions about Montpelier’s climate
What is the coldest month in Montpelier?
January, with a typical high of 30° and a low of 8°.
What is the hottest month in Montpelier?
July, with a typical high of 84° and a low of 47°. About 16 days a year reach 90°.
How much snow does Montpelier get?
About 91 inches in a normal winter, most of it in January.
When is the first frost in Montpelier?
In half of years the first 32° night comes by September 3, and the last spring frost by June 17.
What is the rainiest month in Montpelier?
May, with 1.8 inches of rain and melted snow. The year totals 14 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Montpelier itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Bern, ID (4 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.