Collierville climate — normals and trends
Collierville (United States) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 16.3 °C and it receives 1,230 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is July (27.1 °C on average) and the coldest is January (4.4 °C). Rainfall peaks in March.
Collierville averages 47 frost days, 88 hot days (≥ 30 °C) and 118 rainy days per year.
Collierville has warmed by +1.2 °C between 1940 and 2025, or +0.14 °C per decade. This trend is statistically significant.
The number of frost days there went from about 52 to 42 per year over the period.
The hottest day of the period reached 41.3 °C (on 27 July 1952) and the coldest -21.2 °C (on 21 January 1985).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
ColliervilleTennessee
- coords
- 35.04°, -89.66°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
16.3°C
Average daily high
21.6°C
Average daily low
11.6°C
Annual rainfall
1,230mm
Sunshine / day
9.4h
Mean relative humidity
69%
Average peak wind
14.9km/h
Seasonal range
22.7°C
Frost days (< 0 °C)
47 d/yr
Hot days (≥ 30 °C)
88 d/yr
Rainy days (≥ 1 mm)
118 d/yr
Annual snowfall
10.5 cm
Average feels-like high
21.7 °C
Average feels-like low
10.4 °C
Average peak gust
35.0 km/h
Tropical nights (≥ 20 °C)
92 d/yr
Solar radiation
16.3 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.2 °C
since 1940
+0.1 °C per decade · r² = 0.22 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
41.3 °C
27 July 1952
Coldest day
-21.2 °C
21 January 1985
Wettest day
151 mm
26 September 2002
Windiest day
41.2 km/h
30 August 2005
Strongest gust
106.9 km/h
25 March 2024
Hottest feels-like
45.3 °C
3 August 2011
Coldest feels-like
-28.1 °C
20 January 1985
Snowiest day
16.3 cm
22 December 1963
Sunniest day
14.0 h
24 May 1940
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 7.6 °C | -1.5 °C | 95 mm | -11 mm |
| Feb | 12.9 °C | +1.2 °C | 129 mm | +20 mm |
| Mar | 20.6 °C | +4.0 °C | 102 mm | -33 mm |
| Apr | 24.1 °C | +2.2 °C | 247 mm | +117 mm |
| May | 25.0 °C | -1.4 °C | 170 mm | +53 mm |
| Jun | 30.9 °C | +0.1 °C | 200 mm | +112 mm |
| Jul | 32.9 °C | +0.6 °C | 53 mm | -39 mm |
| Aug | 32.1 °C | +0.1 °C | 19 mm | -62 mm |
| Sep | 30.7 °C | +2.0 °C | 52 mm | -26 mm |
| Oct | 24.3 °C | +1.2 °C | 127 mm | +46 mm |
| Nov | 18.1 °C | +2.0 °C | 49 mm | -50 mm |
| Dec | 11.9 °C | +0.9 °C | 47 mm | -69 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Collierville?
Collierville has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 16.3 °C and it receives 1,230 mm of precipitation per year.
What is the hottest day ever recorded in Collierville?
The hottest day measured in Collierville between 1940 and 2025 was 27 July 1952, reaching 41.3 °C.
What is the coldest day in Collierville?
The coldest day measured in Collierville between 1940 and 2025 was 21 January 1985, at -21.2 °C.
Does it snow in Collierville?
Yes. Collierville gets on average 10.5 cm of snow per year and has around 47 frost days.
Has the climate of Collierville warmed?
Yes: Collierville warmed by +1.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Collierville?
The wettest day measured in Collierville between 1940 and 2025 was 26 September 2002, with 151 mm of rain in 24 hours.
What was the windiest day in Collierville?
The windiest day measured in Collierville between 1940 and 2025 was 30 August 2005, with winds reaching 41.2 km/h.
What is the warmest month in Collierville?
The warmest month in Collierville is July (27.1 °C on average); the coldest is January (4.4 °C).
How much does it rain in Collierville?
Collierville receives on average 1,230 mm of precipitation per year, spread over about 118 rainy days.
Is it sunny in Collierville?
Collierville gets on average 9.4 hours of sunshine per day, roughly 3,431 hours per year over 1940-2025.
What is the biggest single-day snowfall in Collierville?
The heaviest 24-hour snowfall measured in Collierville between 1940 and 2025 was 22 December 1963, with 16.3 cm.
Are there tropical nights in Collierville?
Yes: Collierville has on average 92 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Collierville?
In Collierville, between 1940 and 2025, the highest apparent temperature reached 45.3 °C on 3 August 2011, and the lowest was -28.1 °C on 20 January 1985.
Compare Collierville with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Collierville