Optima, OK climate
Optima has chilly winters and hot summers, with very little rain. A typical July afternoon reaches 94°, a January night drops to 22°, and about 17 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Optima feels like
Winter
Spring
Summer
Fall
Optima 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 | 30-yr range |
|---|---|---|---|---|---|---|
| January | 49° | 22° | 0.5" | 3.9" | 3 | 29° – 43° |
| February | 53° | 24° | 0.4" | 3.1" | 3 | 32° – 46° |
| March | 62° | 32° | 1.2" | 4.3" | 4 | 41° – 55° |
| April | 71° | 40° | 1.3" | 0.3" | 5 | 48° – 61° |
| May | 80° | 51° | 2.3" | 0 | 6 | 59° – 72° |
| June | 90° | 61° | 2.7" | 0 | 7 | 70° – 80° |
| July | 94° | 66° | 2.8" | 0 | 7 | 77° – 86° |
| August | 92° | 64° | 2.8" | 0 | 7 | 72° – 84° |
| September | 85° | 56° | 1.4" | 0 | 5 | 65° – 77° |
| October | 73° | 43° | 1.8" | 0.4" | 4 | 51° – 63° |
| November | 60° | 31° | 0.6" | 1.0" | 3 | 39° – 51° |
| December | 49° | 23° | 0.8" | 4.0" | 4 | 30° – 41° |
| Year | 72° | 43° | 18.3" | 17.0" | 57 |
“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 Optima
Optima gets 18 inches of rain and melted snow a year. July is the wettest month and February the driest. Rain or snow falls on about 57 days a year.
About 192 frost-free days a year
In half of years the last 32° night comes by April 16 and the first one by October 25. That leaves about 192 frost-free days for gardens, longer than 66% of U.S. towns.
Heating and cooling a home in Optima
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Optima, 73% of that work is heating and 27% 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 Optima 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 Optima averaged 1.0° warmer than the 1900s. The biggest change is in March (+2.6°). The shift is smaller than in 74% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Optima’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 41° to 55°. July is the most reliable, staying within 9°.
Common questions about Optima’s climate
What is the coldest month in Optima?
January, with a typical high of 49° and a low of 22°.
What is the hottest month in Optima?
July, with a typical high of 94° and a low of 66°. About 84 days a year reach 90°.
How much snow does Optima get?
About 17 inches in a normal winter, most of it in March.
When is the first frost in Optima?
In half of years the first 32° night comes by October 25, and the last spring frost by April 16.
What is the rainiest month in Optima?
July, with 2.8 inches of rain and melted snow. The year totals 18 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Optima itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Hooker, OK (10 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.