May Weather in Bismarck

Last updated: March 2, 2024

The weather in Bismarck, United States, during May is characterized by an average temperature of 19°C (66°F). Highs can soar to 30°C (87°F), while lows may dip to 6°C (44°F). Typically, the humidity level in Bismarck throughout May hovers around 83%.

6°C (44°F)

Minimum temperature

19°C (66°F)

Average temperature

30°C (87°F)

Maximum temperature

83%

Humidity

Precipitation and Sunshine hours

In May, Bismarck averages 150 mm (5.9 inches) of rainfall, typically over the course of 13 rainy days. The month enjoys an average of 14 hours 13 minutes of daylight, with the sun shining for approximately 9 hours 16 minutes each day. Additionally, there is a 29% probability of sunny days during this period.

150 mm (5.9 inches)

Precipitation

13 rainy days

Rainy days

9 hours 16 minutes

Sunshine hours

29%

Chance of sun

UV Index

In May, the UV Index in Bismarck reaches a maximum of 11, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, during which unprotected skin may burn in as little as 10 minutes.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
  07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00
UVI 1 2 4 6 8 10 11 10 8 5 3 2 1
Exposure Low Moderate High VeryHigh Extreme VeryHigh Moderate Low
Time to burn 45 min 30 min 25 min 15 min 10 min 15 min 30 min 45 min

Compare Bismarck's Climate with Cities Worldwide