Altus, OK climate
Altus has chilly winters and hot summers. A typical July afternoon reaches 97°, a January night drops to 28°, and about 3 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Altus feels like
Winter
Spring
Summer
Fall
Altus 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 | 53° | 28° | 0.9" | 0.9" | 4 | 1 | 36° – 48° |
| February | 57° | 31° | 1.1" | 0.7" | 5 | 0 | 38° – 52° |
| March | 66° | 40° | 1.9" | 0.3" | 5 | 0 | 48° – 60° |
| April | 75° | 48° | 2.7" | 0 | 5 | 0 | 55° – 68° |
| May | 84° | 59° | 4.2" | 0 | 8 | 0 | 67° – 78° |
| June | 93° | 68° | 3.7" | 0 | 7 | 0 | 76° – 88° |
| July | 97° | 72° | 2.4" | 0 | 5 | 0 | 80° – 92° |
| August | 96° | 71° | 2.7" | 0 | 5 | 0 | 77° – 92° |
| September | 87° | 63° | 2.7" | 0 | 6 | 0 | 71° – 82° |
| October | 76° | 50° | 2.6" | 0.1" | 5 | 0 | 56° – 68° |
| November | 64° | 38° | 1.6" | 0 | 4 | 0 | 45° – 57° |
| December | 54° | 30° | 1.2" | 0.8" | 4 | 1 | 34° – 45° |
| Year | 75° | 50° | 27.6" | 2.8" | 62 | 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 Altus
Altus gets 28 inches of rain and melted snow a year. May is the wettest month and January the driest. Rain or snow falls on about 62 days a year.
About 214 frost-free days a year
In half of years the last 32° night comes by April 3 and the first one by November 4. That leaves about 214 frost-free days for gardens, longer than 80% of U.S. towns.
Heating and cooling a home in Altus
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Altus, 59% of that work is heating and 41% is cooling.
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 Altus 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 Altus averaged 1.0° warmer than the 1900s. The biggest change is in January (+2.2°). The shift is smaller than in 69% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Altus’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. August swings the most: between 1991 and 2020 its average temperature ranged from 77° to 92°. December is the most reliable, staying within 11°.
Common questions about Altus’s climate
What is the coldest month in Altus?
January, with a typical high of 53° and a low of 28°.
What is the hottest month in Altus?
July, with a typical high of 97° and a low of 72°. About 106 days a year reach 90°.
How much snow does Altus get?
About 3 inches in a normal winter, most of it in January.
When is the first frost in Altus?
In half of years the first 32° night comes by November 4, and the last spring frost by April 3.
What is the rainiest month in Altus?
May, with 4.2 inches of rain and melted snow. The year totals 28 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Altus itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Headrick, OK (10 mi, snow) and Altus 3s Mesonet, OK (5 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.