Eagle Butte, SD climate
Eagle Butte has cold, snowy winters and warm summers, with very little rain. A typical July afternoon reaches 86°, a January night drops to 9°, and about 37 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Eagle Butte feels like
Winter
Spring
Summer
Fall
Eagle 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 | 28° | 9° | 0.4" | 5.2" | 3 | 17 | 9° – 33° |
| February | 32° | 12° | 0.6" | 7.4" | 3 | 13 | 3° – 34° |
| March | 44° | 22° | 0.9" | 6.0" | 3 | 11 | 21° – 47° |
| April | 56° | 32° | 1.9" | 5.9" | 6 | 3 | 37° – 50° |
| May | 67° | 43° | 3.2" | 0.3" | 8 | 0 | 50° – 61° |
| June | 78° | 53° | 3.4" | 0 | 9 | 0 | 60° – 70° |
| July | 86° | 60° | 2.5" | 0 | 7 | 0 | 64° – 80° |
| August | 85° | 58° | 2.0" | 0 | 4 | 0 | 65° – 76° |
| September | 75° | 48° | 1.4" | 0 | 3 | 0 | 55° – 68° |
| October | 59° | 35° | 1.7" | 1.6" | 4 | 1 | 39° – 52° |
| November | 43° | 22° | 0.5" | 5.1" | 2 | 8 | 21° – 42° |
| December | 31° | 13° | 0.5" | 5.3" | 2 | 12 | 9° – 30° |
| Year | 57° | 34° | 18.9" | 36.8" | 54 | 64 |
“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 Eagle Butte
Eagle Butte gets 19 inches of rain and melted snow a year. June is the wettest month and January the driest. Rain or snow falls on about 54 days a year. Snow covers the ground about 64 days of the year.
About 148 frost-free days a year
In half of years the last 32° night comes by May 6 and the first one by October 2. That leaves about 148 frost-free days for gardens, shorter than 82% of U.S. towns.
Heating and cooling a home in Eagle Butte
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Eagle Butte, 91% of that work is heating and 9% 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 Eagle 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 Eagle Butte averaged 1.1° warmer than the 1900s. The biggest change is in January (+3.6°). The shift is smaller than in 59% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Eagle 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 34°. June is the most reliable, staying within 10°.
Common questions about Eagle Butte’s climate
What is the coldest month in Eagle Butte?
January, with a typical high of 28° and a low of 9°.
What is the hottest month in Eagle Butte?
July, with a typical high of 86° and a low of 60°. About 30 days a year reach 90°.
How much snow does Eagle Butte get?
About 37 inches in a normal winter, most of it in February.
When is the first frost in Eagle Butte?
In half of years the first 32° night comes by October 2, and the last spring frost by May 6.
What is the rainiest month in Eagle Butte?
June, with 3.4 inches of rain and melted snow. The year totals 19 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Eagle Butte itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Eagle Butte, SD (1 mi, snow) and Dupree 15 Sse, SD (15 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.