May Weather in Petersburg

Last updated: March 2, 2024

The weather in Petersburg, United States, during May is characterized by an average temperature of 21°C (71°F). Highs can soar to 37°C (98°F), while lows may dip to 6°C (43°F). Typically, the humidity level in Petersburg throughout May hovers around 75%.

6°C (43°F)

Minimum temperature

21°C (71°F)

Average temperature

37°C (98°F)

Maximum temperature

75%

Humidity

Precipitation and Sunshine hours

In May, Petersburg averages 68 mm (2.7 inches) of rainfall, typically over the course of 9 rainy days. The month enjoys an average of 13 hours 55 minutes of daylight, with the sun shining for approximately 10 hours 49 minutes each day. Additionally, there is a 47% probability of sunny days during this period.

68 mm (2.7 inches)

Precipitation

9 rainy days

Rainy days

10 hours 49 minutes

Sunshine hours

47%

Chance of sun

UV Index

In May, the UV Index in Petersburg 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 1 2 5 7 10 11 11 10 8 5 3 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 Petersburg's Climate with Cities Worldwide