Omaha, NE weather in August
Expect warm, often humid weather with some rain in Omaha in August, with highs near 86°F and lows near 66°F. Rain falls on about 9 days. It is one of the warmest months in Omaha.
- Normal high
- 86°F
- Normal low
- 66°F
- Wet days
- 9
- 4.6 in total
- Muggy days
- 16
- dew point 65°F+
How August changes from start to finish
| August 1 | August 31 | |
|---|---|---|
| Normal high | 88°F | 84°F |
| Normal low | 68°F | 62°F |
| Chance of a wet day | 30% | 28% |
| Sunrise / sunset | 6:19 am / 8:40 pm | 6:49 am / 7:58 pm |
| Daylight | 14.4 h | 13.2 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Central Time).
A typical August day
- 6 am66°Fdew point 63°F
- 9 am74°Fdew point 64°F
- Noon81°Fdew point 65°F
- 3 pm83°Fdew point 65°F
- 6 pm81°Fdew point 65°F
- 9 pm74°Fdew point 66°F
NOAA hourly normals (local standard time) from Omaha Eppley Airfield (4 mi away); average wind 8 mph; clear or few clouds in 51% of daytime hours, mostly cloudy or overcast in 27%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F3 of 31
- Hot dayshigh 90°F or more8 of 31
- Muggy daysdaily mean dew point 65°F or more16 of 31
- Wet daysat least 0.01 in of rain or melted snow9 of 31
- Notable rainat least 0.10 in6 of 31
- Freezing nightslow 32°F or below0 of 31
- Snow on the groundsnow depth 1 in or more0 of 31
Average days per August, counted from daily records for each year 1991-2020.
Rain in August
Normal precipitation is 4.6 in; a dry August brings about 1.9 in and a wet one about 6.5 in (25th and 75th percentiles). About 3 days bring half an inch or more, and about 2 an inch or more.
How August varies from year to year
- Warmest August, 1991-20201995: average high 90°F
- Coolest August1992: average high 79°F
- Wettest August1999: 12.3 in
- Driest August2020: 0.5 in
- Highest reading103°F (August 7, 2012)
- Lowest reading46°F (August 31, 2009)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
August compared with July and September
| July | August | September | |
|---|---|---|---|
| Normal high | 88°F | 86°F | 79°F |
| Normal low | 68°F | 66°F | 56°F |
| Wet days | 10 | 9 | 8 |
| Comfortable days | 2 | 3 | 12 |
| Daylight | 14.8 h | 13.8 h | 12.5 h |
Highs change by -2°F from July and -7°F into September.
How Omaha ranks in August
- Normal high194th warmest of 378 cities; 2nd of 2 in Nebraska
- Wet days189th driest of 378
- Comfortable days152nd most of 341
What to pack for Omaha in August
- Light, breathable clothing – highs near 86°F and about 16 muggy days
- A rain jacket or umbrella – rain on about 9 days
Heating and cooling
August has 3 heating degree days and 335 cooling degree days (base 65°F), 5% of the year's total heating and cooling demand.
Questions
How hot is Omaha in August?
The normal high is 86°F and the normal low is 66°F. From 1991 to 2020 the hottest August reading was 103°F (August 7, 2012).
Does it rain a lot in Omaha in August?
About 9 days in August have at least 0.01 in of precipitation, and the normal total is 4.6 in. The wettest August in 1991-2020 was in 1999 (12.3 in); the driest was in 2020 (0.5 in).
Is August a good time to visit Omaha?
August ranks 7th of 12 months on our comfort score for Omaha (51 out of 100). It has about 3 comfortable days and about 8 days at 90°F or hotter. The best month is May.
Where the numbers come from
- Temperature, rain, snowfall, snow depth, frost dates, humidity and wind by hour and cloud cover: Omaha Eppley Airfield (USW00014942), 4.1 mi NNE of the city center, 982 ft (74 ft lower than the city). NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Eppley Airfield Airport (725500-14942), 4.1 mi NNE of the city center, 980 ft (76 ft lower than the city). Hourly observations, 1991-2020.