Omaha, Nebraska climate: Normal weather by month, frost dates and records

What is the weather like in Omaha each month?

July is the warmest month, with normal highs of 88°F; January the coldest, with normal lows of 15°F. The most precipitation falls in May (4.66 in), the least in January (0.75 in).

Each month has its own page with the day-by-day normals, the month's records and its recent years:

• Jan
• Feb
• Mar
• Apr
• May
• Jun
• Jul
• Aug
• Sep
• Oct
• Nov
• Dec

When is the best weather to visit Omaha?

Normal highs sit between 65°F and 85°F in May, June, September and October. Of those, October has the fewest days with rain (7).

That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.

When is the last frost in Omaha?

In Omaha, the last spring frost (32°F) comes after April 18 in half of years and after April 30 in one year in ten; the first autumn frost comes before October 21 in half of years and before October 6 in one year in ten.

Last spring frost, half of years after

April 181 year in 10 after April 30; 9 in 10 after April 5

First autumn frost, half of years before

October 211 year in 10 before October 6; 9 in 10 before November 1

NOAA puts the median frost-free season at 185 days, and the season without a hard freeze (28°F) at 204 days.

A hard freeze (28°F) comes after April 8 in half of springs and before October 30 in half of autumns.

The USDA's 2023 Plant Hardiness Zone Map puts Omaha in zones 5b to 6a across its 28 ZIP code areas (6a in 68110, the largest). By the map's own method, the average of each year's coldest night over 1991-2020, Omaha's NOAA station is in zone 5b: the coldest night of a typical year reaches −11°F (30 complete years); the map interpolates between stations and terrain, so the station and the ZIP area can differ by half a zone.

Frost dates for every NOAA station in Nebraska · Frost dates by ZIP code

What hardiness zone is each Omaha ZIP code in?

The USDA's 2023 map gives each ZIP code area one zone. Omaha's 28 ZIP code areas run from zone 5b to 6a: 3 in 5b and 25 in 6a. Each ZIP's frost dates are in the frost tool.

How hot and how cold does it get in Omaha?

In a normal year in Omaha, 33 days a year reach 90°F (2 of them 100°F or more), 135 nights fall to 32°F or colder and 103 days bring measurable precipitation.

Days at 90°F or more

33a normal year

Days at 100°F or more

2a normal year

Nights at 32°F or colder

135a normal year

Days that stay below freezing

40high of 32°F or less

Days with 0.01 inch of precipitation

103a normal year

Days with 1 inch of snow or more

8a normal year

The highest temperature in Omaha's official record (kept by the National Weather Service since 1871) is 114°F, on July 25, 1936; the lowest is −32°F, on January 5, 1884.

The wettest calendar year on that record is 1883, with 48.92 in; the snowiest season is 1911–12, with 67.5 inches.

How humid and windy is Omaha, and how clear are its skies?

The summer (June-August) dew point averages 64°F. The muggiest month is July, with an average dew point of 65°F, above the 65°F at which most people call the air sticky; the driest air comes in December (17°F). March is the windiest month (11.8 mph on average), and August has the most clear or nearly clear hours (63%).

How sunny is Omaha?

Over a year 76% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Omaha, 4.2 kWh per square metre a day. July is the sunniest month (83%) and December the cloudiest (69%). Among the 459 U.S. places of 50,000 or more, that ranks tied 276th (with 27 others) in sunshine.

How much heating and cooling does Omaha need?

A normal year in Omaha brings 5,833 heating degree days, 9% more than the median U.S. place (5,373), and 1,294 cooling degree days, 43% more than the median (908). Seven months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 3,787 growing degree days a year above 50°F.

Has Omaha been warmer than normal lately?

2025 averaged 53.2°F, 0.8°F above the 1991-2020 normal of 52.4°F. 4 of the 5 complete years since 2021 ran warmer than the normal.

Over 146 complete years from 1873 to 2025, the station's annual mean temperature rose at a fitted 2.7°F per century (+0.15°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.

Which places near Omaha share this climate record?

11 places have no NOAA station with 1991-2020 normals of their own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.

• Council Bluffs, IAalso near: Springfield (14 mi, 50.6°F a year); Glenwood (16 mi, 50.9°F a year)62,665 people · 6 mi SE
• Carter Lake, IA3,752 people · 2 mi SW
• Treynor, IA1,104 people · 16 mi E
• Underwood, IA973 people · 12 mi NE
• Neola, IA917 people · 18 mi NE
• Crescent, IA626 people · 4 mi NE
• Minden, IA581 people · 21 mi NE
• Bentley, IA185 people · 15 mi E
• Weston, IA167 people · 8 mi E
• McClelland, IA147 people · 11 mi E
• Mineola, IA115 people · 16 mi SE

What do Omaha's other NOAA stations record?

One more NOAA station keeps 1991-2020 normals in or near Omaha. This page uses Omaha Eppley Airfield; the other differs by site and elevation:

Nearby and next

• Omaha in OctoberThis month day by day, its records and recent years
• Nebraska climateThe statewide normals and every place in the state
• Fort Calhoun, NE14 miles from this station, 49.3°F a year
• Springfield, NE18 miles from this station, 50.6°F a year
• Gretna, NE19 miles from this station, 50.7°F a year
• Blair, NE21 miles from this station, 50.2°F a year
• Compare two placesMonth by month, side by side

Download these normals (CSV) · JSON · How these figures are made