The climate in Bismarck during July can be summarized as hot and a little damp.
July is in the summer in Bismarck and is typically the warmest month of the year. Daytime maximum temperatures average around a warm 32°C (89°F), whilst at night 19°C (65°F) is normal.
| Daytime temperature | 31.6°C 88.8°F |
|---|---|
| Nightly temperature | 18.5°C 65.2°F |
| Average temperature | 25°C 77°F |
| Daily sunshine | 10.8 hrs |
| Avg rainfall | 94 mm 3.7 ins |
| Rainy days | 8 days |
| Sea temperature | 20.8°C 69.4°F |
| Humidity | 69% |
| Windspeed | 13.3kph 8 mph |
On average July is the 6th driest month of the year in Bismarck with around 94mm 3.7 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 8 days, although this may vary considerably.
On the flip side this corresponds to an average of 10.8 hours of sunshine per day.
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Bismarck in July 2025.
| Hottest month: | July | 31.2°C 88.2°F |
|---|---|---|
| Driest month: | January | 54mm 2.1ins |
| Sunniest month: | July | 10.8hrs |
| Coldest month: | January | 4°C 39.2°F |
| Wettest month: | May | 112mm 4.4ins |