Sibley Butte, ND climate
Sibley Butte has cold, snowy winters and pleasant summers, with very little rain. A typical July afternoon reaches 82°, a January night drops to 1°, and about 51 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Sibley Butte feels like
Winter
Spring
Summer
Fall
Sibley Butte 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 | 20° | 1° | 0.5" | 8.9" | 8 | 26 | -2° – 26° |
| February | 25° | 5° | 0.4" | 7.5" | 8 | 21 | -3° – 28° |
| March | 38° | 18° | 0.8" | 8.5" | 8 | 13 | 17° – 41° |
| April | 54° | 29° | 1.3" | 4.6" | 8 | 3 | 33° – 49° |
| May | 67° | 41° | 2.6" | 0.4" | 10 | 0 | 49° – 60° |
| June | 76° | 52° | 3.3" | 0 | 12 | 0 | 59° – 69° |
| July | 82° | 57° | 3.0" | 0 | 10 | 0 | 63° – 75° |
| August | 81° | 55° | 2.2" | 0 | 8 | 0 | 62° – 73° |
| September | 72° | 45° | 1.7" | 0 | 7 | 0 | 53° – 64° |
| October | 55° | 32° | 1.4" | 2.5" | 7 | 1 | 36° – 49° |
| November | 38° | 19° | 0.6" | 8.0" | 7 | 9 | 16° – 39° |
| December | 25° | 7° | 0.6" | 10.1" | 8 | 19 | 5° – 26° |
| Year | 53° | 30° | 18.5" | 50.5" | 100 | 92 |
“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 Sibley Butte
Sibley Butte gets 18 inches of rain and melted snow a year. June is the wettest month and February the driest. Rain or snow falls on about 100 days a year. Snow covers the ground about 92 days of the year.
About 133 frost-free days a year
In half of years the last 32° night comes by May 15 and the first one by September 25. That leaves about 133 frost-free days for gardens, shorter than 93% of U.S. towns.
Heating and cooling a home in Sibley Butte
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Sibley Butte, 96% of that work is heating and 4% 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.
Sibley Butte and its neighbors
Sibley Butte borders 4 towns with climate data. January nights across them vary by 1.1°. Christiania has the coldest January nights (1°) and McKenzie the hottest July afternoons (83°). Sibley Butte’s January low is 1° and its July high 82°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Sibley Butte 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 Sibley Butte averaged 1.5° warmer than the 1900s. The biggest change is in January (+4.3°). The shift is larger than in 68% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Sibley Butte’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 28°. June is the most reliable, staying within 9°.
Common questions about Sibley Butte’s climate
What is the coldest month in Sibley Butte?
January, with a typical high of 20° and a low of 1°.
What is the hottest month in Sibley Butte?
July, with a typical high of 82° and a low of 57°. About 12 days a year reach 90°.
How much snow does Sibley Butte get?
About 51 inches in a normal winter, most of it in December.
When is the first frost in Sibley Butte?
In half of years the first 32° night comes by September 25, and the last spring frost by May 15.
What is the rainiest month in Sibley Butte?
June, with 3.3 inches of rain and melted snow. The year totals 18 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Sibley Butte itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Bismarck, ND (22 mi, snow) and Steele 4n, ND (20 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.