Jackson climate — normals and trends
Jackson (United States) has a hot-summer humid continental climate (Dfa) under the Köppen-Geiger classification. Its mean annual temperature is 9.1 °C and it receives 895 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 (22.1 °C on average) and the coldest is January (-4.8 °C). Rainfall peaks in May.
Jackson averages 125 frost days, 17 hot days (≥ 30 °C) and 125 rainy days per year.
Jackson has warmed by +2.0 °C between 1940 and 2025, or +0.23 °C per decade. This trend is statistically significant.
The number of frost days there went from about 140 to 110 per year over the period.
The hottest day of the period reached 38.2 °C (on 6 July 2012) and the coldest -28.2 °C (on 31 January 2019).
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
JacksonMichigan
- coords
- 42.25°, -84.40°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
9.1°C
Average daily high
13.7°C
Average daily low
4.7°C
Annual rainfall
895mm
Sunshine / day
8.5h
Mean relative humidity
72%
Average peak wind
18.7km/h
Seasonal range
26.9°C
Frost days (< 0 °C)
125 d/yr
Hot days (≥ 30 °C)
17 d/yr
Rainy days (≥ 1 mm)
125 d/yr
Annual snowfall
88.1 cm
Average feels-like high
11.5 °C
Average feels-like low
1.6 °C
Average peak gust
39.7 km/h
Tropical nights (≥ 20 °C)
17 d/yr
Solar radiation
14.3 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.0 °C
since 1940
+0.2 °C per decade · r² = 0.40 · 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
38.2 °C
6 July 2012
Coldest day
-28.2 °C
31 January 2019
Wettest day
80 mm
1 August 1979
Windiest day
52.8 km/h
15 March 1959
Strongest gust
106.9 km/h
15 March 1959
Hottest feels-like
43.9 °C
14 July 1995
Coldest feels-like
-34.8 °C
31 January 2019
Snowiest day
31.6 cm
26 January 1978
Sunniest day
14.9 h
15 June 2025
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 | -2.4 °C | -1.2 °C | 43 mm | -14 mm |
| Feb | -0.1 °C | -0.6 °C | 42 mm | -10 mm |
| Mar | 11.6 °C | +5.1 °C | 102 mm | +30 mm |
| Apr | 15.3 °C | +1.6 °C | 84 mm | -6 mm |
| May | 19.0 °C | -1.0 °C | 118 mm | +23 mm |
| Jun | 27.1 °C | +1.9 °C | 108 mm | +18 mm |
| Jul | 28.6 °C | +1.4 °C | 127 mm | +42 mm |
| Aug | 26.0 °C | -0.1 °C | 44 mm | -38 mm |
| Sep | 24.6 °C | +2.4 °C | 45 mm | -25 mm |
| Oct | 17.9 °C | +2.3 °C | 57 mm | -13 mm |
| Nov | 7.8 °C | 0.0 °C | 48 mm | -23 mm |
| Dec | 0.8 °C | -0.5 °C | 73 mm | +11 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 hot-summer humid continental climate (Köppen Dfa). Over 1940-2025, the average annual temperature is 9.1 °C and it receives 895 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 6 July 2012, reaching 38.2 °C.
What is the coldest day in Jackson?
The coldest day measured in Jackson between 1940 and 2025 was 31 January 2019, at -28.2 °C.
Does it snow in Jackson?
Yes. Jackson gets on average 88.1 cm of snow per year and has around 125 frost days.
Has the climate of Jackson warmed?
Yes: Jackson warmed by +2.0 °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 1 August 1979, with 80 mm of rain in 24 hours.
What was the windiest day in Jackson?
The windiest day measured in Jackson between 1940 and 2025 was 15 March 1959, with winds reaching 52.8 km/h.
What is the warmest month in Jackson?
The warmest month in Jackson is July (22.1 °C on average); the coldest is January (-4.8 °C).
How much does it rain in Jackson?
Jackson receives on average 895 mm of precipitation per year, spread over about 125 rainy days.
Is it sunny in Jackson?
Jackson gets on average 8.5 hours of sunshine per day, roughly 3,103 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 26 January 1978, with 31.6 cm.
Are there tropical nights in Jackson?
Yes: Jackson has on average 17 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 43.9 °C on 14 July 1995, and the lowest was -34.8 °C on 31 January 2019.
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