Omaha climate — normals and trends
Omaha (United States) has a hot-summer humid continental climate (Dfa) under the Köppen-Geiger classification. Its mean annual temperature is 10.5 °C and it receives 867 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 (24.8 °C on average) and the coldest is January (-5.5 °C). Rainfall peaks in June.
Omaha averages 124 frost days, 47 hot days (≥ 30 °C) and 99 rainy days per year.
Omaha has warmed by +1.8 °C between 1940 and 2025, or +0.21 °C per decade. This trend is statistically significant.
The number of frost days there went from about 131 to 117 per year over the period.
The hottest day of the period reached 41.2 °C (on 13 July 1954) and the coldest -34.5 °C (on 16 February 2021).
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
OmahaNebraska
- coords
- 41.26°, -95.94°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
10.5°C
Average daily high
15.9°C
Average daily low
5.4°C
Annual rainfall
867mm
Sunshine / day
9.3h
Mean relative humidity
68%
Average peak wind
21.8km/h
Seasonal range
30.3°C
Frost days (< 0 °C)
124 d/yr
Hot days (≥ 30 °C)
47 d/yr
Rainy days (≥ 1 mm)
99 d/yr
Annual snowfall
64.6 cm
Average feels-like high
13.8 °C
Average feels-like low
2.3 °C
Average peak gust
40.7 km/h
Tropical nights (≥ 20 °C)
37 d/yr
Solar radiation
15.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.8 °C
since 1940
+0.2 °C per decade · r² = 0.29 · 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
41.2 °C
13 July 1954
Coldest day
-34.5 °C
16 February 2021
Wettest day
166 mm
26 August 2009
Windiest day
60.5 km/h
10 October 1949
Strongest gust
108.4 km/h
10 October 1949
Hottest feels-like
43.8 °C
11 June 1953
Coldest feels-like
-39.9 °C
16 February 2021
Snowiest day
26.0 cm
26 March 1983
Sunniest day
14.9 h
1 July 2025
Normals computed over complete calendar years 1940–2025.
A specific year
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Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 0.9 °C | +1.5 °C | 6 mm | -21 mm |
| Feb | 0.5 °C | -1.7 °C | 16 mm | -16 mm |
| Mar | 14.9 °C | +6.1 °C | 85 mm | +18 mm |
| Apr | 17.8 °C | +1.3 °C | 91 mm | -5 mm |
| May | 23.0 °C | +0.7 °C | 65 mm | -59 mm |
| Jun | 29.7 °C | +2.0 °C | 112 mm | -16 mm |
| Jul | 30.1 °C | 0.0 °C | 113 mm | +26 mm |
| Aug | 28.0 °C | -1.0 °C | 96 mm | +7 mm |
| Sep | 26.4 °C | +1.6 °C | 87 mm | +5 mm |
| Oct | 20.3 °C | +1.9 °C | 67 mm | +4 mm |
| Nov | 10.8 °C | +1.5 °C | 40 mm | -3 mm |
| Dec | 5.2 °C | +3.1 °C | 14 mm | -19 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 Omaha?
Omaha has a hot-summer humid continental climate (Köppen Dfa). Over 1940-2025, the average annual temperature is 10.5 °C and it receives 867 mm of precipitation per year.
What is the hottest day ever recorded in Omaha?
The hottest day measured in Omaha between 1940 and 2025 was 13 July 1954, reaching 41.2 °C.
What is the coldest day in Omaha?
The coldest day measured in Omaha between 1940 and 2025 was 16 February 2021, at -34.5 °C.
Does it snow in Omaha?
Yes. Omaha gets on average 64.6 cm of snow per year and has around 124 frost days.
Has the climate of Omaha warmed?
Yes: Omaha warmed by +1.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Omaha?
The wettest day measured in Omaha between 1940 and 2025 was 26 August 2009, with 166 mm of rain in 24 hours.
What was the windiest day in Omaha?
The windiest day measured in Omaha between 1940 and 2025 was 10 October 1949, with winds reaching 60.5 km/h.
What is the warmest month in Omaha?
The warmest month in Omaha is July (24.8 °C on average); the coldest is January (-5.5 °C).
How much does it rain in Omaha?
Omaha receives on average 867 mm of precipitation per year, spread over about 99 rainy days.
Is it sunny in Omaha?
Omaha 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 Omaha?
The heaviest 24-hour snowfall measured in Omaha between 1940 and 2025 was 26 March 1983, with 26.0 cm.
Are there tropical nights in Omaha?
Yes: Omaha has on average 37 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Omaha?
In Omaha, between 1940 and 2025, the highest apparent temperature reached 43.8 °C on 11 June 1953, and the lowest was -39.9 °C on 16 February 2021.
Compare Omaha with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Omaha