St. Pierre, MT climate
St. Pierre has cold winters and pleasant summers, with very little rain. A typical July afternoon reaches 78°, a January night drops to 13°.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in St. Pierre feels like
Winter
Spring
Summer
Fall
St. Pierre 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 | 32° | 13° | 0.8" | 10° – 36° |
| February | 34° | 14° | 0.8" | 0° – 39° |
| March | 42° | 20° | 0.7" | 14° – 40° |
| April | 51° | 28° | 1.6" | 34° – 44° |
| May | 61° | 37° | 2.9" | 45° – 54° |
| June | 69° | 44° | 3.7" | 53° – 61° |
| July | 78° | 50° | 2.2" | 55° – 71° |
| August | 78° | 49° | 1.4" | 58° – 69° |
| September | 67° | 41° | 1.6" | 49° – 60° |
| October | 53° | 31° | 1.7" | 35° – 48° |
| November | 41° | 21° | 1.0" | 18° – 41° |
| December | 34° | 15° | 0.8" | 10° – 33° |
| Year | 53° | 30° | 19.2" |
“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 St. Pierre
St. Pierre gets 19 inches of rain and melted snow a year. June is the wettest month and March the driest.
St. Pierre and its neighbors
St. Pierre borders 2 towns with climate data. January nights across them vary by 3.3°. Sangrey has both the coldest January nights (10°) and the hottest July afternoons (81°). St. Pierre’s January low is 13° and its July high 78°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How St. Pierre 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 St. Pierre averaged 1.7° warmer than the 1900s. The biggest change is in January (+5.1°). The shift is larger than in 82% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at St. Pierre’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 0° to 39°. June is the most reliable, staying within 8°.
Common questions about St. Pierre’s climate
What is the coldest month in St. Pierre?
January, with a typical high of 32° and a low of 13°.
What is the hottest month in St. Pierre?
July, with a typical high of 78° and a low of 50°.
What is the rainiest month in St. Pierre?
June, with 3.7 inches of rain and melted snow. The year totals 19 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for St. Pierre itself (about a 3-mile square). Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.