Waco climate — normals and trends
Waco (United States) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 19.5 °C and it receives 892 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 August (29.4 °C on average) and the coldest is January (8.6 °C). Rainfall peaks in May.
Waco averages 18 frost days, 124 hot days (≥ 30 °C) and 91 rainy days per year.
Waco has warmed by +2.0 °C between 1940 and 2025, or +0.23 °C per decade. This trend is statistically significant.
The hottest day of the period reached 43.7 °C (on 23 July 2018) and the coldest -16.8 °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
WacoTexas
- coords
- 31.55°, -97.15°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
19.5°C
Average daily high
25.0°C
Average daily low
14.5°C
Annual rainfall
892mm
Sunshine / day
9.4h
Mean relative humidity
66%
Average peak wind
20.0km/h
Seasonal range
20.8°C
Frost days (< 0 °C)
18 d/yr
Hot days (≥ 30 °C)
124 d/yr
Rainy days (≥ 1 mm)
91 d/yr
Annual snowfall
2.7 cm
Average feels-like high
24.9 °C
Average feels-like low
13.5 °C
Average peak gust
37.9 km/h
Tropical nights (≥ 20 °C)
128 d/yr
Solar radiation
17.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.0 °C
since 1940
+0.2 °C per decade · r² = 0.46 · 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
43.7 °C
23 July 2018
Coldest day
-16.8 °C
31 January 1949
Wettest day
220 mm
14 October 1957
Windiest day
57.7 km/h
12 September 1961
Strongest gust
103.3 km/h
12 September 1961
Hottest feels-like
45.8 °C
27 June 1980
Coldest feels-like
-22.8 °C
23 December 1989
Snowiest day
9.8 cm
16 January 1964
Sunniest day
13.3 h
28 June 2023
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 | 12.5 °C | -1.8 °C | 93 mm | +33 mm |
| Feb | 17.1 °C | +0.6 °C | 29 mm | -43 mm |
| Mar | 26.3 °C | +5.7 °C | 70 mm | -12 mm |
| Apr | 27.4 °C | +2.6 °C | 113 mm | +7 mm |
| May | 29.6 °C | +1.2 °C | 197 mm | +67 mm |
| Jun | 33.1 °C | +0.8 °C | 111 mm | +41 mm |
| Jul | 32.6 °C | -2.0 °C | 216 mm | +176 mm |
| Aug | 34.2 °C | -0.8 °C | 114 mm | +68 mm |
| Sep | 32.1 °C | +0.7 °C | 27 mm | -37 mm |
| Oct | 29.4 °C | +3.0 °C | 69 mm | -18 mm |
| Nov | 23.8 °C | +3.7 °C | 75 mm | +2 mm |
| Dec | 18.6 °C | +2.7 °C | 12 mm | -51 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 Waco?
Waco has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 19.5 °C and it receives 892 mm of precipitation per year.
What is the hottest day ever recorded in Waco?
The hottest day measured in Waco between 1940 and 2025 was 23 July 2018, reaching 43.7 °C.
What is the coldest day in Waco?
The coldest day measured in Waco between 1940 and 2025 was 31 January 1949, at -16.8 °C.
Does it snow in Waco?
Yes. Waco gets on average 2.7 cm of snow per year and has around 18 frost days.
Has the climate of Waco warmed?
Yes: Waco warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Waco?
The wettest day measured in Waco between 1940 and 2025 was 14 October 1957, with 220 mm of rain in 24 hours.
What was the windiest day in Waco?
The windiest day measured in Waco between 1940 and 2025 was 12 September 1961, with winds reaching 57.7 km/h.
What is the warmest month in Waco?
The warmest month in Waco is August (29.4 °C on average); the coldest is January (8.6 °C).
How much does it rain in Waco?
Waco receives on average 892 mm of precipitation per year, spread over about 91 rainy days.
Is it sunny in Waco?
Waco 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 Waco?
The heaviest 24-hour snowfall measured in Waco between 1940 and 2025 was 16 January 1964, with 9.8 cm.
Are there tropical nights in Waco?
Yes: Waco has on average 128 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Waco?
In Waco, between 1940 and 2025, the highest apparent temperature reached 45.8 °C on 27 June 1980, and the lowest was -22.8 °C on 23 December 1989.
Compare Waco with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Waco