Collierville, TN climate
Collierville has mild winters and warm summers, with plenty of rain. A typical July afternoon reaches 91°, a January night drops to 32°, and about 2 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Collierville feels like
Winter
Spring
Summer
Fall
Collierville 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 | 50° | 32° | 4.3" | 0.4" | 10 | 1 | 34° – 48° |
| February | 55° | 35° | 4.8" | 0.6" | 11 | 1 | 35° – 54° |
| March | 63° | 42° | 5.8" | 0.8" | 11 | 0 | 47° – 64° |
| April | 73° | 50° | 5.8" | 0 | 10 | 0 | 55° – 67° |
| May | 81° | 60° | 5.5" | 0 | 11 | 0 | 66° – 76° |
| June | 88° | 68° | 4.7" | 0 | 9 | 0 | 74° – 82° |
| July | 91° | 71° | 4.4" | 0 | 10 | 0 | 76° – 84° |
| August | 90° | 69° | 3.4" | 0 | 8 | 0 | 75° – 86° |
| September | 85° | 62° | 3.7" | 0 | 7 | 0 | 70° – 80° |
| October | 74° | 51° | 4.1" | 0 | 9 | 0 | 59° – 69° |
| November | 62° | 41° | 4.4" | 0 | 9 | 0 | 45° – 56° |
| December | 53° | 34° | 5.6" | 0.3" | 11 | 0 | 32° – 53° |
| Year | 72° | 51° | 56.5" | 2.1" | 115 | 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 Collierville
Collierville gets 56 inches of rain and melted snow a year. March is the wettest month and August the driest. Rain or snow falls on about 115 days a year.
About 230 frost-free days a year
In half of years the last 32° night comes by March 22 and the first one by November 7. That leaves about 230 frost-free days for gardens, longer than 86% of U.S. towns.
Heating and cooling a home in Collierville
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Collierville, 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.
Collierville and its neighbors
Collierville borders 3 towns with climate data. January nights across them vary by 0.7°. Piperton has the coldest January nights (31°) and Germantown the hottest July afternoons (91°). Collierville’s January low is 32° and its July high 91°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Collierville 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 Collierville averaged 0.8° warmer than the 1900s. The biggest change is in February (+1.6°). The shift is smaller than in 87% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Collierville’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. December swings the most: between 1991 and 2020 its average temperature ranged from 32° to 53°. July is the most reliable, staying within 8°.
Common questions about Collierville’s climate
What is the coldest month in Collierville?
January, with a typical high of 50° and a low of 32°.
What is the hottest month in Collierville?
July, with a typical high of 91° and a low of 71°. About 78 days a year reach 90°.
How much snow does Collierville get?
About 2 inches in a normal winter, most of it in March.
When is the first frost in Collierville?
In half of years the first 32° night comes by November 7, and the last spring frost by March 22.
What is the rainiest month in Collierville?
March, with 5.8 inches of rain and melted snow. The year totals 56 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Collierville itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Germantown 4se, TN (3 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.