Conroe climate — normals and trends
Conroe (United States) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 19.9 °C and it receives 1,129 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 (27.9 °C on average) and the coldest is January (10.4 °C). Rainfall peaks in May.
Conroe averages 11 frost days, 124 hot days (≥ 30 °C) and 123 rainy days per year.
Conroe has warmed by +1.7 °C between 1940 and 2025, or +0.20 °C per decade. This trend is statistically significant.
The hottest day of the period reached 42.7 °C (on 27 August 2023) and the coldest -14.9 °C (on 31 January 1949).
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
ConroeTexas
- coords
- 30.31°, -95.46°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
19.9°C
Average daily high
25.4°C
Average daily low
15.2°C
Annual rainfall
1,129mm
Sunshine / day
9.3h
Mean relative humidity
74%
Average peak wind
15.1km/h
Seasonal range
17.5°C
Frost days (< 0 °C)
11 d/yr
Hot days (≥ 30 °C)
124 d/yr
Rainy days (≥ 1 mm)
123 d/yr
Annual snowfall
0.9 cm
Average feels-like high
26.7 °C
Average feels-like low
15.4 °C
Average peak gust
34.8 km/h
Tropical nights (≥ 20 °C)
138 d/yr
Solar radiation
16.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.7 °C
since 1940
+0.2 °C per decade · r² = 0.44 · 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
42.7 °C
27 August 2023
Coldest day
-14.9 °C
31 January 1949
Wettest day
169 mm
20 May 1983
Windiest day
57.6 km/h
13 September 2008
Strongest gust
131.8 km/h
11 September 1961
Hottest feels-like
45.6 °C
27 August 2023
Coldest feels-like
-20.5 °C
23 December 1989
Snowiest day
10.6 cm
30 January 1949
Sunniest day
13.4 h
12 June 1940
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 | 13.5 °C | -2.2 °C | 114 mm | +20 mm |
| Feb | 19.1 °C | +1.3 °C | 108 mm | +25 mm |
| Mar | 25.0 °C | +3.5 °C | 67 mm | -25 mm |
| Apr | 27.3 °C | +2.0 °C | 77 mm | -32 mm |
| May | 30.4 °C | +1.4 °C | 105 mm | -14 mm |
| Jun | 32.2 °C | +0.2 °C | 229 mm | +126 mm |
| Jul | 33.1 °C | -0.3 °C | 99 mm | +19 mm |
| Aug | 33.4 °C | -0.2 °C | 99 mm | +20 mm |
| Sep | 32.5 °C | +1.5 °C | 46 mm | -49 mm |
| Oct | 30.1 °C | +3.3 °C | 79 mm | -8 mm |
| Nov | 24.7 °C | +3.6 °C | 91 mm | -3 mm |
| Dec | 19.8 °C | +2.6 °C | 23 mm | -72 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 Conroe?
Conroe has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 19.9 °C and it receives 1,129 mm of precipitation per year.
What is the hottest day ever recorded in Conroe?
The hottest day measured in Conroe between 1940 and 2025 was 27 August 2023, reaching 42.7 °C.
What is the coldest day in Conroe?
The coldest day measured in Conroe between 1940 and 2025 was 31 January 1949, at -14.9 °C.
Does it snow in Conroe?
Almost never: Conroe sees virtually no snow, with about 11 frost days per year.
Has the climate of Conroe warmed?
Yes: Conroe warmed by +1.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Conroe?
The wettest day measured in Conroe between 1940 and 2025 was 20 May 1983, with 169 mm of rain in 24 hours.
What was the windiest day in Conroe?
The windiest day measured in Conroe between 1940 and 2025 was 13 September 2008, with winds reaching 57.6 km/h.
What is the warmest month in Conroe?
The warmest month in Conroe is July (27.9 °C on average); the coldest is January (10.4 °C).
How much does it rain in Conroe?
Conroe receives on average 1,129 mm of precipitation per year, spread over about 123 rainy days.
Is it sunny in Conroe?
Conroe gets on average 9.3 hours of sunshine per day, roughly 3,395 hours per year over 1940-2025.
What is the biggest single-day snowfall in Conroe?
The heaviest 24-hour snowfall measured in Conroe between 1940 and 2025 was 30 January 1949, with 10.6 cm.
Are there tropical nights in Conroe?
Yes: Conroe has on average 138 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Conroe?
In Conroe, between 1940 and 2025, the highest apparent temperature reached 45.6 °C on 27 August 2023, and the lowest was -20.5 °C on 23 December 1989.
Compare Conroe with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Conroe