Vernon, OK climate
Vernon has mild winters and hot summers. A typical July afternoon reaches 93°, a January night drops to 29°, and about 4 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Vernon feels like
Winter
Spring
Summer
Fall
Vernon 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 | 51° | 29° | 2.2" | 1.8" | 4 | 35° – 48° |
| February | 56° | 33° | 2.3" | 0.2" | 5 | 37° – 53° |
| March | 64° | 41° | 3.5" | 1.0" | 6 | 47° – 62° |
| April | 73° | 49° | 4.6" | 0 | 6 | 55° – 68° |
| May | 80° | 59° | 6.2" | 0 | 6 | 67° – 76° |
| June | 88° | 67° | 4.9" | 0 | 7 | 74° – 83° |
| July | 93° | 71° | 3.8" | 0 | 3 | 78° – 90° |
| August | 93° | 70° | 3.3" | 0 | 4 | 75° – 88° |
| September | 85° | 62° | 4.7" | 0 | 5 | 69° – 81° |
| October | 75° | 50° | 4.2" | 0 | 6 | 57° – 70° |
| November | 63° | 40° | 3.3" | 0.4" | 4 | 44° – 58° |
| December | 53° | 32° | 2.9" | 0.3" | 4 | 32° – 47° |
| Year | 73° | 50° | 45.8" | 3.7" | 59 |
“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 Vernon
Vernon gets 46 inches of rain and melted snow a year. May is the wettest month and January the driest. Rain or snow falls on about 59 days a year.
About 229 frost-free days a year
In half of years the last 32° night comes by March 24 and the first one by November 9. That leaves about 229 frost-free days for gardens, longer than 86% of U.S. towns.
Heating and cooling a home in Vernon
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Vernon, 61% of that work is heating and 39% 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 Vernon compares
Compared with every U.S. town and city on TownTapestry, each counted once.
About as warm as it used to be
The last 30 years in Vernon averaged 0.2° warmer than the 1900s. The biggest change is in March (+1.2°). The shift is smaller than in 100% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Vernon’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 37° to 53°. May is the most reliable, staying within 10°.
Common questions about Vernon’s climate
What is the coldest month in Vernon?
January, with a typical high of 51° and a low of 29°.
What is the hottest month in Vernon?
July, with a typical high of 93° and a low of 71°. About 75 days a year reach 90°.
How much snow does Vernon get?
About 4 inches in a normal winter, most of it in January.
When is the first frost in Vernon?
In half of years the first 32° night comes by November 9, and the last spring frost by March 24.
What is the rainiest month in Vernon?
May, with 6.2 inches of rain and melted snow. The year totals 46 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Vernon itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Dustin 2nw, OK (8 mi, snow) and Okemah, OK (25 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.