Brockway, MT climate
Brockway has cold winters and warm summers, with very little rain. A typical July afternoon reaches 86°, a January night drops to 5°.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Brockway feels like
Winter
Spring
Summer
Fall
Brockway 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 | 27° | 5° | 0.3" | 3° – 30° |
| February | 32° | 9° | 0.3" | -3° – 32° |
| March | 45° | 19° | 0.4" | 15° – 43° |
| April | 57° | 29° | 1.2" | 38° – 48° |
| May | 67° | 40° | 2.6" | 49° – 59° |
| June | 77° | 49° | 2.6" | 58° – 68° |
| July | 86° | 55° | 2.0" | 61° – 77° |
| August | 85° | 53° | 1.2" | 62° – 75° |
| September | 73° | 43° | 1.2" | 53° – 65° |
| October | 57° | 30° | 1.0" | 36° – 50° |
| November | 42° | 18° | 0.3" | 18° – 40° |
| December | 30° | 9° | 0.3" | 6° – 28° |
| Year | 56° | 30° | 13.3" |
“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 Brockway
Brockway gets 13 inches of rain and melted snow a year. May is the wettest month and February the driest.
About 121 frost-free days a year
In half of years the last 32° night comes by May 20 and the first one by September 19. That leaves about 121 frost-free days for gardens, shorter than 97% of U.S. towns.
Heating and cooling a home in Brockway
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Brockway, 94% of that work is heating and 6% 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 Brockway 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 Brockway averaged 1.3° warmer than the 1900s. The biggest change is in January (+3.8°). The shift is larger than in 53% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Brockway’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 -3° to 32°. April is the most reliable, staying within 10°.
Common questions about Brockway’s climate
What is the coldest month in Brockway?
January, with a typical high of 27° and a low of 5°.
What is the hottest month in Brockway?
July, with a typical high of 86° and a low of 55°. About 28 days a year reach 90°.
When is the first frost in Brockway?
In half of years the first 32° night comes by September 19, and the last spring frost by May 20.
What is the rainiest month in Brockway?
May, with 2.6 inches of rain and melted snow. The year totals 13 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Brockway itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Brockway 3 Wsw, MT (3 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.