Jackson climate — normals and trends
Jackson (United States) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 15.8 °C and it receives 1,238 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 (26.7 °C on average) and the coldest is January (3.8 °C). Rainfall peaks in March.
Jackson averages 53 frost days, 84 hot days (≥ 30 °C) and 120 rainy days per year.
Jackson has warmed by +1.3 °C between 1940 and 2025, or +0.16 °C per decade. This trend is statistically significant.
The number of frost days there went from about 58 to 48 per year over the period.
The hottest day of the period reached 41.6 °C (on 27 July 1952) and the coldest -26.6 °C (on 2 February 1951).
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
JacksonTennessee
- coords
- 35.61°, -88.81°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
15.8°C
Average daily high
21.2°C
Average daily low
11.0°C
Annual rainfall
1,238mm
Sunshine / day
9.2h
Mean relative humidity
69%
Average peak wind
14.8km/h
Seasonal range
22.9°C
Frost days (< 0 °C)
53 d/yr
Hot days (≥ 30 °C)
84 d/yr
Rainy days (≥ 1 mm)
120 d/yr
Annual snowfall
13.6 cm
Average feels-like high
21.1 °C
Average feels-like low
9.7 °C
Average peak gust
35.1 km/h
Tropical nights (≥ 20 °C)
84 d/yr
Solar radiation
16.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.3 °C
since 1940
+0.2 °C per decade · r² = 0.27 · 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
41.6 °C
27 July 1952
Coldest day
-26.6 °C
2 February 1951
Wettest day
160 mm
31 August 2017
Windiest day
41.1 km/h
5 April 1947
Strongest gust
113.0 km/h
11 January 2020
Hottest feels-like
45.1 °C
14 July 1980
Coldest feels-like
-31.8 °C
2 February 1951
Snowiest day
17.9 cm
22 March 1968
Sunniest day
14.0 h
30 May 1940
Normals computed over complete calendar years 1940–2025.
A specific year
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Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 7.2 °C | -1.4 °C | 92 mm | -16 mm |
| Feb | 12.7 °C | +1.5 °C | 144 mm | +30 mm |
| Mar | 20.4 °C | +4.2 °C | 106 mm | -26 mm |
| Apr | 24.0 °C | +2.4 °C | 231 mm | +105 mm |
| May | 24.7 °C | -1.4 °C | 231 mm | +118 mm |
| Jun | 30.6 °C | +0.1 °C | 191 mm | +103 mm |
| Jul | 33.8 °C | +1.8 °C | 50 mm | -46 mm |
| Aug | 32.4 °C | +0.8 °C | 22 mm | -55 mm |
| Sep | 30.8 °C | +2.5 °C | 88 mm | +4 mm |
| Oct | 23.8 °C | +1.1 °C | 101 mm | +20 mm |
| Nov | 17.7 °C | +2.1 °C | 66 mm | -38 mm |
| Dec | 11.4 °C | +0.8 °C | 52 mm | -65 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 Jackson?
Jackson has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 15.8 °C and it receives 1,238 mm of precipitation per year.
What is the hottest day ever recorded in Jackson?
The hottest day measured in Jackson between 1940 and 2025 was 27 July 1952, reaching 41.6 °C.
What is the coldest day in Jackson?
The coldest day measured in Jackson between 1940 and 2025 was 2 February 1951, at -26.6 °C.
Does it snow in Jackson?
Yes. Jackson gets on average 13.6 cm of snow per year and has around 53 frost days.
Has the climate of Jackson warmed?
Yes: Jackson warmed by +1.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Jackson?
The wettest day measured in Jackson between 1940 and 2025 was 31 August 2017, with 160 mm of rain in 24 hours.
What was the windiest day in Jackson?
The windiest day measured in Jackson between 1940 and 2025 was 5 April 1947, with winds reaching 41.1 km/h.
What is the warmest month in Jackson?
The warmest month in Jackson is July (26.7 °C on average); the coldest is January (3.8 °C).
How much does it rain in Jackson?
Jackson receives on average 1,238 mm of precipitation per year, spread over about 120 rainy days.
Is it sunny in Jackson?
Jackson gets on average 9.2 hours of sunshine per day, roughly 3,358 hours per year over 1940-2025.
What is the biggest single-day snowfall in Jackson?
The heaviest 24-hour snowfall measured in Jackson between 1940 and 2025 was 22 March 1968, with 17.9 cm.
Are there tropical nights in Jackson?
Yes: Jackson has on average 84 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Jackson?
In Jackson, between 1940 and 2025, the highest apparent temperature reached 45.1 °C on 14 July 1980, and the lowest was -31.8 °C on 2 February 1951.
Compare Jackson with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Jackson