Oglala, SD climate
Oglala has cold winters and warm summers, with very little rain. A typical July afternoon reaches 89°, a January night drops to 14°.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Oglala feels like
Winter
Spring
Summer
Fall
Oglala 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 | 38° | 14° | 0.5" | 17° – 38° |
| February | 41° | 17° | 0.6" | 15° – 40° |
| March | 52° | 25° | 1.1" | 26° – 51° |
| April | 60° | 33° | 2.2" | 40° – 52° |
| May | 70° | 43° | 3.1" | 50° – 62° |
| June | 81° | 53° | 3.2" | 61° – 73° |
| July | 89° | 60° | 2.2" | 67° – 81° |
| August | 88° | 58° | 1.8" | 68° – 78° |
| September | 78° | 48° | 1.5" | 56° – 68° |
| October | 63° | 34° | 1.5" | 41° – 54° |
| November | 49° | 24° | 0.7" | 26° – 45° |
| December | 39° | 15° | 0.5" | 17° – 35° |
| Year | 62° | 35° | 18.6" |
“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 Oglala
Oglala gets 19 inches of rain and melted snow a year. June is the wettest month and January the driest.
About 149 frost-free days a year
In half of years the last 32° night comes by May 7 and the first one by October 4. That leaves about 149 frost-free days for gardens, shorter than 82% of U.S. towns.
Heating and cooling a home in Oglala
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Oglala, 89% of that work is heating and 11% 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 Oglala 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 Oglala averaged 1.7° warmer than the 1900s. The biggest change is in January (+4.5°). The shift is larger than in 81% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Oglala’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. March swings the most: between 1991 and 2020 its average temperature ranged from 26° to 51°. August is the most reliable, staying within 10°.
Common questions about Oglala’s climate
What is the coldest month in Oglala?
January, with a typical high of 38° and a low of 14°.
What is the hottest month in Oglala?
July, with a typical high of 89° and a low of 60°. About 43 days a year reach 90°.
When is the first frost in Oglala?
In half of years the first 32° night comes by October 4, and the last spring frost by May 7.
What is the rainiest month in Oglala?
June, with 3.2 inches of rain and melted snow. The year totals 19 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Oglala itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Oglala 1s, SD (2 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.