Monroe climate — normals and trends
Monroe (United States) has a hot-summer humid continental climate (Dfa) under the Köppen-Geiger classification. Its mean annual temperature is 9.8 °C and it receives 877 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 (23.0 °C on average) and the coldest is January (-4.0 °C). Rainfall peaks in May.
Monroe averages 117 frost days, 22 hot days (≥ 30 °C) and 119 rainy days per year.
Monroe has warmed by +1.9 °C between 1940 and 2025, or +0.22 °C per decade. This trend is statistically significant.
The number of frost days there went from about 131 to 103 per year over the period.
The hottest day of the period reached 40.5 °C (on 25 June 1988) and the coldest -28.9 °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
MonroeMichigan
- coords
- 41.92°, -83.40°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
9.8°C
Average daily high
14.3°C
Average daily low
5.5°C
Annual rainfall
877mm
Sunshine / day
8.8h
Mean relative humidity
71%
Average peak wind
20.2km/h
Seasonal range
27.0°C
Frost days (< 0 °C)
117 d/yr
Hot days (≥ 30 °C)
22 d/yr
Rainy days (≥ 1 mm)
119 d/yr
Annual snowfall
71.9 cm
Average feels-like high
12.1 °C
Average feels-like low
2.4 °C
Average peak gust
40.4 km/h
Tropical nights (≥ 20 °C)
25 d/yr
Solar radiation
14.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.9 °C
since 1940
+0.2 °C per decade · r² = 0.37 · 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
40.5 °C
25 June 1988
Coldest day
-28.9 °C
19 January 1994
Wettest day
100 mm
30 August 1975
Windiest day
57.9 km/h
22 March 1955
Strongest gust
112.0 km/h
15 March 1959
Hottest feels-like
44.3 °C
14 July 1995
Coldest feels-like
-36.0 °C
19 January 1994
Snowiest day
32.0 cm
1 December 1974
Sunniest day
15.0 h
15 June 1953
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 | -1.3 °C | -0.8 °C | 36 mm | -23 mm |
| Feb | 0.7 °C | -0.1 °C | 46 mm | -10 mm |
| Mar | 11.8 °C | +5.4 °C | 61 mm | -13 mm |
| Apr | 15.1 °C | +1.5 °C | 93 mm | +4 mm |
| May | 18.5 °C | -1.7 °C | 113 mm | +22 mm |
| Jun | 26.8 °C | +1.1 °C | 122 mm | +36 mm |
| Jul | 28.9 °C | +0.9 °C | 122 mm | +42 mm |
| Aug | 26.2 °C | -0.7 °C | 29 mm | -48 mm |
| Sep | 24.9 °C | +1.9 °C | 41 mm | -22 mm |
| Oct | 18.6 °C | +2.2 °C | 69 mm | +5 mm |
| Nov | 8.8 °C | +0.1 °C | 45 mm | -26 mm |
| Dec | 1.9 °C | -0.2 °C | 72 mm | +6 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 Monroe?
Monroe has a hot-summer humid continental climate (Köppen Dfa). Over 1940-2025, the average annual temperature is 9.8 °C and it receives 877 mm of precipitation per year.
What is the hottest day ever recorded in Monroe?
The hottest day measured in Monroe between 1940 and 2025 was 25 June 1988, reaching 40.5 °C.
What is the coldest day in Monroe?
The coldest day measured in Monroe between 1940 and 2025 was 19 January 1994, at -28.9 °C.
Does it snow in Monroe?
Yes. Monroe gets on average 71.9 cm of snow per year and has around 117 frost days.
Has the climate of Monroe warmed?
Yes: Monroe warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Monroe?
The wettest day measured in Monroe between 1940 and 2025 was 30 August 1975, with 100 mm of rain in 24 hours.
What was the windiest day in Monroe?
The windiest day measured in Monroe between 1940 and 2025 was 22 March 1955, with winds reaching 57.9 km/h.
What is the warmest month in Monroe?
The warmest month in Monroe is July (23.0 °C on average); the coldest is January (-4.0 °C).
How much does it rain in Monroe?
Monroe receives on average 877 mm of precipitation per year, spread over about 119 rainy days.
Is it sunny in Monroe?
Monroe gets on average 8.8 hours of sunshine per day, roughly 3,212 hours per year over 1940-2025.
What is the biggest single-day snowfall in Monroe?
The heaviest 24-hour snowfall measured in Monroe between 1940 and 2025 was 1 December 1974, with 32.0 cm.
Are there tropical nights in Monroe?
Yes: Monroe has on average 25 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Monroe?
In Monroe, between 1940 and 2025, the highest apparent temperature reached 44.3 °C on 14 July 1995, and the lowest was -36.0 °C on 19 January 1994.
Compare Monroe with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Monroe