Adrian climate — normals and trends
Adrian (United States) has a hot-summer humid continental climate (Dfa) under the Köppen-Geiger classification. Its mean annual temperature is 9.3 °C and it receives 890 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 (22.3 °C on average) and the coldest is January (-4.4 °C). Rainfall peaks in May.
Adrian averages 124 frost days, 18 hot days (≥ 30 °C) and 120 rainy days per year.
Adrian 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 138 to 110 per year over the period.
The hottest day of the period reached 39.9 °C (on 25 June 1988) and the coldest -29.2 °C (on 19 January 1994).
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
AdrianMichigan
- coords
- 41.90°, -84.04°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
9.3°C
Average daily high
14.1°C
Average daily low
4.8°C
Annual rainfall
890mm
Sunshine / day
8.6h
Mean relative humidity
72%
Average peak wind
19.5km/h
Seasonal range
26.7°C
Frost days (< 0 °C)
124 d/yr
Hot days (≥ 30 °C)
18 d/yr
Rainy days (≥ 1 mm)
120 d/yr
Annual snowfall
77.8 cm
Average feels-like high
11.9 °C
Average feels-like low
1.7 °C
Average peak gust
38.7 km/h
Tropical nights (≥ 20 °C)
17 d/yr
Solar radiation
14.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.0 °C
since 1940
+0.2 °C per decade · r² = 0.39 · 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
39.9 °C
25 June 1988
Coldest day
-29.2 °C
19 January 1994
Wettest day
101 mm
30 August 1975
Windiest day
55.8 km/h
22 March 1955
Strongest gust
107.6 km/h
10 November 1998
Hottest feels-like
43.7 °C
14 July 1995
Coldest feels-like
-36.0 °C
19 January 1994
Snowiest day
30.0 cm
1 December 1974
Sunniest day
14.9 h
15 June 2025
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 | -1.7 °C | -1.0 °C | 39 mm | -19 mm |
| Feb | 0.4 °C | -0.4 °C | 40 mm | -14 mm |
| Mar | 12.1 °C | +5.2 °C | 83 mm | +9 mm |
| Apr | 15.5 °C | +1.6 °C | 98 mm | +7 mm |
| May | 18.8 °C | -1.3 °C | 120 mm | +24 mm |
| Jun | 26.8 °C | +1.4 °C | 117 mm | +27 mm |
| Jul | 28.7 °C | +1.3 °C | 117 mm | +35 mm |
| Aug | 26.2 °C | -0.3 °C | 27 mm | -50 mm |
| Sep | 25.3 °C | +2.5 °C | 42 mm | -24 mm |
| Oct | 18.7 °C | +2.5 °C | 71 mm | +4 mm |
| Nov | 8.5 °C | +0.1 °C | 49 mm | -22 mm |
| Dec | 1.4 °C | -0.4 °C | 74 mm | +10 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 Adrian?
Adrian has a hot-summer humid continental climate (Köppen Dfa). Over 1940-2025, the average annual temperature is 9.3 °C and it receives 890 mm of precipitation per year.
What is the hottest day ever recorded in Adrian?
The hottest day measured in Adrian between 1940 and 2025 was 25 June 1988, reaching 39.9 °C.
What is the coldest day in Adrian?
The coldest day measured in Adrian between 1940 and 2025 was 19 January 1994, at -29.2 °C.
Does it snow in Adrian?
Yes. Adrian gets on average 77.8 cm of snow per year and has around 124 frost days.
Has the climate of Adrian warmed?
Yes: Adrian warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Adrian?
The wettest day measured in Adrian between 1940 and 2025 was 30 August 1975, with 101 mm of rain in 24 hours.
What was the windiest day in Adrian?
The windiest day measured in Adrian between 1940 and 2025 was 22 March 1955, with winds reaching 55.8 km/h.
What is the warmest month in Adrian?
The warmest month in Adrian is July (22.3 °C on average); the coldest is January (-4.4 °C).
How much does it rain in Adrian?
Adrian receives on average 890 mm of precipitation per year, spread over about 120 rainy days.
Is it sunny in Adrian?
Adrian gets on average 8.6 hours of sunshine per day, roughly 3,139 hours per year over 1940-2025.
What is the biggest single-day snowfall in Adrian?
The heaviest 24-hour snowfall measured in Adrian between 1940 and 2025 was 1 December 1974, with 30.0 cm.
Are there tropical nights in Adrian?
Yes: Adrian has on average 17 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Adrian?
In Adrian, between 1940 and 2025, the highest apparent temperature reached 43.7 °C on 14 July 1995, and the lowest was -36.0 °C on 19 January 1994.
Compare Adrian with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Adrian