Hebgen Lake Estates, MT climate
Hebgen Lake Estates has cold, snowy winters and pleasant summers. A typical July afternoon reaches 78°, a January night drops to 4°, and about 177 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Hebgen Lake Estates feels like
Winter
Spring
Summer
Fall
Hebgen Lake Estates 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 | 26° | 4° | 2.5" | 43.8" | 14 | 31 | 8° – 22° |
| February | 31° | 6° | 2.1" | 33.7" | 11 | 29 | 13° – 25° |
| March | 40° | 15° | 2.1" | 20.6" | 9 | 30 | 22° – 34° |
| April | 48° | 22° | 2.3" | 7.7" | 10 | 19 | 29° – 40° |
| May | 59° | 31° | 2.7" | 1.2" | 12 | 2 | 39° – 50° |
| June | 68° | 37° | 2.5" | 0 | 12 | 0 | 47° – 59° |
| July | 78° | 42° | 1.4" | 0 | 8 | 0 | 51° – 66° |
| August | 78° | 40° | 1.2" | 0 | 6 | 0 | 54° – 62° |
| September | 67° | 33° | 1.4" | 0 | 6 | 0 | 47° – 54° |
| October | 51° | 25° | 1.9" | 4.1" | 8 | 2 | 28° – 44° |
| November | 36° | 14° | 2.2" | 20.9" | 10 | 20 | 16° – 33° |
| December | 26° | 5° | 2.8" | 45.2" | 13 | 31 | 10° – 21° |
| Year | 51° | 23° | 25.0" | 177.2" | 118 | 162 |
“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 Hebgen Lake Estates
Hebgen Lake Estates gets 25 inches of rain and melted snow a year. December is the wettest month and August the driest. Rain or snow falls on about 118 days a year. Snow covers the ground about 162 days of the year.
About 87 frost-free days a year
In half of years the last 32° night comes by June 15 and the first one by September 10. That leaves about 87 frost-free days for gardens, shorter than 99% of U.S. towns.
Heating and cooling a home in Hebgen Lake Estates
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Hebgen Lake Estates, 100% of that work is heating and 0% 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 Hebgen Lake Estates 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 Hebgen Lake Estates averaged 1.0° warmer than the 1900s. The biggest change is in March (+3.3°). The shift is smaller than in 67% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Hebgen Lake Estates’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. November swings the most: between 1991 and 2020 its average temperature ranged from 16° to 33°. September is the most reliable, staying within 7°.
Common questions about Hebgen Lake Estates’s climate
What is the coldest month in Hebgen Lake Estates?
January, with a typical high of 26° and a low of 4°.
What is the hottest month in Hebgen Lake Estates?
July, with a typical high of 78° and a low of 42°. About 2 days a year reach 90°.
How much snow does Hebgen Lake Estates get?
About 177 inches in a normal winter, most of it in December.
When is the first frost in Hebgen Lake Estates?
In half of years the first 32° night comes by September 10, and the last spring frost by June 15.
What is the rainiest month in Hebgen Lake Estates?
December, with 2.8 inches of rain and melted snow. The year totals 25 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Hebgen Lake Estates itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Hebgen Dam, MT (10 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.