Dubois, ID climate
Dubois has cold, snowy winters and warm summers, with very little rain. A typical July afternoon reaches 86°, a January night drops to 11°, and about 47 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Dubois feels like
Winter
Spring
Summer
Fall
Dubois 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 | 28° | 11° | 0.8" | 10.1" | 8 | 30 | 13° – 27° |
| February | 33° | 13° | 0.6" | 7.6" | 7 | 27 | 15° – 32° |
| March | 44° | 23° | 0.7" | 4.5" | 7 | 21 | 24° – 41° |
| April | 56° | 30° | 1.1" | 3.2" | 9 | 2 | 35° – 48° |
| May | 66° | 38° | 1.8" | 0.5" | 11 | 0 | 46° – 57° |
| June | 75° | 45° | 1.6" | 0.1" | 9 | 0 | 54° – 67° |
| July | 86° | 51° | 0.7" | 0 | 6 | 0 | 58° – 76° |
| August | 84° | 49° | 0.7" | 0 | 5 | 0 | 60° – 71° |
| September | 73° | 41° | 0.9" | 0 | 6 | 0 | 53° – 62° |
| October | 57° | 30° | 0.9" | 1.4" | 7 | 1 | 34° – 50° |
| November | 41° | 20° | 0.6" | 6.2" | 6 | 7 | 22° – 38° |
| December | 29° | 11° | 0.8" | 13.7" | 10 | 24 | 13° – 26° |
| Year | 56° | 30° | 11.0" | 47.3" | 89 | 112 |
“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 Dubois
Dubois gets 11 inches of rain and melted snow a year. May is the wettest month and February the driest. Rain or snow falls on about 89 days a year. Snow covers the ground about 112 days of the year.
About 132 frost-free days a year
In half of years the last 32° night comes by May 18 and the first one by September 30. That leaves about 132 frost-free days for gardens, shorter than 94% of U.S. towns.
Heating and cooling a home in Dubois
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Dubois, 95% of that work is heating and 5% 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 Dubois 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 Dubois averaged 1.2° warmer than the 1900s. The biggest change is in March (+3.6°). The shift is larger than in 50% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Dubois’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. July swings the most: between 1991 and 2020 its average temperature ranged from 58° to 76°. September is the most reliable, staying within 10°.
Common questions about Dubois’s climate
What is the coldest month in Dubois?
January, with a typical high of 28° and a low of 11°.
What is the hottest month in Dubois?
July, with a typical high of 86° and a low of 51°. About 20 days a year reach 90°.
How much snow does Dubois get?
About 47 inches in a normal winter, most of it in December.
When is the first frost in Dubois?
In half of years the first 32° night comes by September 30, and the last spring frost by May 18.
What is the rainiest month in Dubois?
May, with 1.8 inches of rain and melted snow. The year totals 11 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Dubois itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Dubois Exp Stn, ID (5 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.