Monroe climate — normals and trends
Monroe (United States) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 18.6 °C and it receives 1,179 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 (28.0 °C on average) and the coldest is January (7.8 °C). Rainfall peaks in March.
Monroe averages 25 frost days, 115 hot days (≥ 30 °C) and 114 rainy days per year.
Monroe has warmed by +1.2 °C between 1940 and 2025, or +0.15 °C per decade. This trend is statistically significant.
The hottest day of the period reached 42.0 °C (on 3 August 2011) and the coldest -17.6 °C (on 11 January 1962).
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
MonroeLouisiana
- coords
- 32.51°, -92.12°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
18.6°C
Average daily high
24.1°C
Average daily low
13.7°C
Annual rainfall
1,179mm
Sunshine / day
9.4h
Mean relative humidity
70%
Average peak wind
15.0km/h
Seasonal range
20.2°C
Frost days (< 0 °C)
25 d/yr
Hot days (≥ 30 °C)
115 d/yr
Rainy days (≥ 1 mm)
114 d/yr
Annual snowfall
2.8 cm
Average feels-like high
24.8 °C
Average feels-like low
13.2 °C
Average peak gust
32.9 km/h
Tropical nights (≥ 20 °C)
119 d/yr
Solar radiation
16.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.2 °C
since 1940
+0.2 °C per decade · r² = 0.24 · 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
42.0 °C
3 August 2011
Coldest day
-17.6 °C
11 January 1962
Wettest day
172 mm
16 October 2006
Windiest day
54.8 km/h
27 August 2020
Strongest gust
139.3 km/h
27 August 2020
Hottest feels-like
45.8 °C
3 August 2011
Coldest feels-like
-23.0 °C
11 January 1962
Snowiest day
10.3 cm
30 January 1949
Sunniest day
13.9 h
21 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 | 11.5 °C | -1.6 °C | 133 mm | +15 mm |
| Feb | 17.3 °C | +1.8 °C | 136 mm | +23 mm |
| Mar | 22.9 °C | +3.1 °C | 159 mm | +25 mm |
| Apr | 27.2 °C | +2.9 °C | 99 mm | -27 mm |
| May | 28.7 °C | +0.5 °C | 114 mm | +15 mm |
| Jun | 33.2 °C | +1.4 °C | 113 mm | +34 mm |
| Jul | 34.7 °C | +1.5 °C | 39 mm | -36 mm |
| Aug | 33.5 °C | +0.1 °C | 97 mm | +28 mm |
| Sep | 31.9 °C | +1.4 °C | 25 mm | -48 mm |
| Oct | 27.1 °C | +1.5 °C | 113 mm | +30 mm |
| Nov | 22.0 °C | +2.9 °C | 43 mm | -56 mm |
| Dec | 16.0 °C | +1.3 °C | 73 mm | -37 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 humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 18.6 °C and it receives 1,179 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 3 August 2011, reaching 42.0 °C.
What is the coldest day in Monroe?
The coldest day measured in Monroe between 1940 and 2025 was 11 January 1962, at -17.6 °C.
Does it snow in Monroe?
Yes. Monroe gets on average 2.8 cm of snow per year and has around 25 frost days.
Has the climate of Monroe warmed?
Yes: Monroe warmed by +1.2 °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 16 October 2006, with 172 mm of rain in 24 hours.
What was the windiest day in Monroe?
The windiest day measured in Monroe between 1940 and 2025 was 27 August 2020, with winds reaching 54.8 km/h.
What is the warmest month in Monroe?
The warmest month in Monroe is July (28.0 °C on average); the coldest is January (7.8 °C).
How much does it rain in Monroe?
Monroe receives on average 1,179 mm of precipitation per year, spread over about 114 rainy days.
Is it sunny in Monroe?
Monroe 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 Monroe?
The heaviest 24-hour snowfall measured in Monroe between 1940 and 2025 was 30 January 1949, with 10.3 cm.
Are there tropical nights in Monroe?
Yes: Monroe has on average 119 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 45.8 °C on 3 August 2011, and the lowest was -23.0 °C on 11 January 1962.
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