Greenville, OK climate
Greenville has mild winters and hot summers. A typical July afternoon reaches 95°, a January night drops to 31°, and about 3 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Greenville feels like
Winter
Spring
Summer
Fall
Greenville 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 | 54° | 31° | 2.0" | 0.8" | 5 | 0 | 38° – 50° |
| February | 58° | 35° | 2.2" | 0.7" | 5 | 0 | 39° – 54° |
| March | 66° | 44° | 3.2" | 0.1" | 6 | 0 | 50° – 63° |
| April | 75° | 51° | 3.4" | 0 | 6 | 0 | 57° – 69° |
| May | 82° | 60° | 5.5" | 0 | 8 | 0 | 68° – 76° |
| June | 90° | 69° | 4.3" | 0 | 7 | 0 | 76° – 85° |
| July | 95° | 73° | 2.6" | 0 | 4 | 0 | 80° – 91° |
| August | 95° | 72° | 2.7" | 0 | 5 | 0 | 77° – 92° |
| September | 87° | 64° | 3.8" | 0 | 5 | 0 | 72° – 82° |
| October | 76° | 52° | 4.0" | 0 | 5 | 0 | 59° – 69° |
| November | 65° | 42° | 2.7" | 0.1" | 4 | 0 | 48° – 60° |
| December | 55° | 33° | 2.6" | 1.0" | 5 | 0 | 36° – 48° |
| Year | 75° | 52° | 38.9" | 2.7" | 65 | 1 |
“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 Greenville
Greenville gets 39 inches of rain and melted snow a year. May is the wettest month and January the driest. Rain or snow falls on about 65 days a year.
About 244 frost-free days a year
In half of years the last 32° night comes by March 15 and the first one by November 14. That leaves about 244 frost-free days for gardens, longer than 89% of U.S. towns.
Heating and cooling a home in Greenville
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Greenville, 51% of that work is heating and 49% 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 Greenville 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 Greenville averaged 0.4° warmer than the 1900s. The biggest change is in March (+1.5°). The shift is smaller than in 99% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Greenville’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 39° to 54°. May is the most reliable, staying within 9°.
Common questions about Greenville’s climate
What is the coldest month in Greenville?
January, with a typical high of 54° and a low of 31°.
What is the hottest month in Greenville?
July, with a typical high of 95° and a low of 73°. About 81 days a year reach 90°.
How much snow does Greenville get?
About 3 inches in a normal winter, most of it in December.
When is the first frost in Greenville?
In half of years the first 32° night comes by November 14, and the last spring frost by March 15.
What is the rainiest month in Greenville?
May, with 5.5 inches of rain and melted snow. The year totals 39 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Greenville itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Ardmore, OK (12 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.