Opelika climate — normals and trends
Opelika (United States) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 17.5 °C and it receives 1,201 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 (26.3 °C on average) and the coldest is January (7.5 °C). Rainfall peaks in July.
Opelika averages 26 frost days, 87 hot days (≥ 30 °C) and 124 rainy days per year.
Opelika has warmed by +1.1 °C between 1940 and 2025, or +0.13 °C per decade. This trend is statistically significant.
The hottest day of the period reached 40.4 °C (on 24 July 1952) and the coldest -18.6 °C (on 21 January 1985).
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
OpelikaAlabama
- coords
- 32.65°, -85.38°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
17.5°C
Average daily high
23.1°C
Average daily low
12.8°C
Annual rainfall
1,201mm
Sunshine / day
9.2h
Mean relative humidity
71%
Average peak wind
14.0km/h
Seasonal range
18.8°C
Frost days (< 0 °C)
26 d/yr
Hot days (≥ 30 °C)
87 d/yr
Rainy days (≥ 1 mm)
124 d/yr
Annual snowfall
2.3 cm
Average feels-like high
23.5 °C
Average feels-like low
12.0 °C
Average peak gust
33.5 km/h
Tropical nights (≥ 20 °C)
101 d/yr
Solar radiation
16.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.1 °C
since 1940
+0.1 °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
40.4 °C
24 July 1952
Coldest day
-18.6 °C
21 January 1985
Wettest day
158 mm
26 September 1953
Windiest day
61.4 km/h
5 October 1995
Strongest gust
149.0 km/h
5 October 1995
Hottest feels-like
44.6 °C
21 August 1983
Coldest feels-like
-25.0 °C
21 January 1985
Snowiest day
21.8 cm
23 January 1940
Sunniest day
13.8 h
6 July 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 | 11.1 °C | -1.6 °C | 73 mm | -40 mm |
| Feb | 18.6 °C | +3.5 °C | 77 mm | -37 mm |
| Mar | 21.6 °C | +2.5 °C | 93 mm | -35 mm |
| Apr | 26.1 °C | +2.7 °C | 75 mm | -25 mm |
| May | 27.0 °C | -0.4 °C | 318 mm | +231 mm |
| Jun | 30.2 °C | -0.6 °C | 192 mm | +101 mm |
| Jul | 32.2 °C | +0.7 °C | 56 mm | -72 mm |
| Aug | 29.4 °C | -1.9 °C | 105 mm | +13 mm |
| Sep | 30.2 °C | +1.3 °C | 10 mm | -75 mm |
| Oct | 24.7 °C | +0.6 °C | 65 mm | +0 mm |
| Nov | 20.4 °C | +2.0 °C | 23 mm | -69 mm |
| Dec | 15.1 °C | +1.0 °C | 61 mm | -46 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 Opelika?
Opelika has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 17.5 °C and it receives 1,201 mm of precipitation per year.
What is the hottest day ever recorded in Opelika?
The hottest day measured in Opelika between 1940 and 2025 was 24 July 1952, reaching 40.4 °C.
What is the coldest day in Opelika?
The coldest day measured in Opelika between 1940 and 2025 was 21 January 1985, at -18.6 °C.
Does it snow in Opelika?
Yes. Opelika gets on average 2.3 cm of snow per year and has around 26 frost days.
Has the climate of Opelika warmed?
Yes: Opelika warmed by +1.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Opelika?
The wettest day measured in Opelika between 1940 and 2025 was 26 September 1953, with 158 mm of rain in 24 hours.
What was the windiest day in Opelika?
The windiest day measured in Opelika between 1940 and 2025 was 5 October 1995, with winds reaching 61.4 km/h.
What is the warmest month in Opelika?
The warmest month in Opelika is July (26.3 °C on average); the coldest is January (7.5 °C).
How much does it rain in Opelika?
Opelika receives on average 1,201 mm of precipitation per year, spread over about 124 rainy days.
Is it sunny in Opelika?
Opelika gets on average 9.2 hours of sunshine per day, roughly 3,358 hours per year over 1940-2025.
What is the biggest single-day snowfall in Opelika?
The heaviest 24-hour snowfall measured in Opelika between 1940 and 2025 was 23 January 1940, with 21.8 cm.
Are there tropical nights in Opelika?
Yes: Opelika has on average 101 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Opelika?
In Opelika, between 1940 and 2025, the highest apparent temperature reached 44.6 °C on 21 August 1983, and the lowest was -25.0 °C on 21 January 1985.
Compare Opelika with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Opelika