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April Weather in Petersburg, United States

Last updated: June 24, 2025

In Petersburg, United States, the average temperature in April is a pleasant 16°C (60°F). However, temperatures can vary significantly, ranging from a chilly -3°C (27°F) to a scorching 34°C (94°F). Expect about 36 mm (1.4 in) of precipitation spread over 5 days, accompanied by an average humidity of 70%. Ideal for those who enjoy varied climates!

April Temperature in Petersburg

In April in Petersburg, the average temperature is 16°C (60°F). Maximums can reach 34°C (94°F), while minimums can drop as low as -3°C (27°F). Therefore, travelers should be prepared for both warm and chilly conditions when visiting.

April Weather in Petersburg: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Petersburg, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Petersburg, April typically has an average temperature of 16°C (60°F), with highs reaching up to 34°C (94°F) and lows dropping to around -3°C (27°F).
JanFebMarAprMayJunJulAugSepOctNovDec404354607078818073615044
Data source: Temperature data for Petersburg generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

April Precipitation in Petersburg

In Petersburg in April, the precipitation amount is 36 mm (1.4 in) over the course of 5 days.

April Precipitation Trends in Petersburg

The chart displays monthly precipitation patterns in Petersburg, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Petersburg, April typically receives around 36 mm (1.4 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec181348366855303558461619
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Petersburg

In Petersburg in April, humidity is 70%. With an average temperature of 16°C (60°F), this humidity feels like a damp blanket enveloping you, making it a bit uncomfortable for traveling as you may find yourself sweating more than usual and feeling slightly sticky as you explore the surroundings.

April Average Humidity in Petersburg

This chart illustrates the average monthly humidity levels in Petersburg, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Petersburg is approximately 70%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%74%66%70%75%79%78%71%69%70%82%82%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Petersburg

In Petersburg in April, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Petersburg.

Maximum UV Index Levels in Petersburg for April

The chart shows the monthly maximum UV Index (UVI) for Petersburg in April, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In April, the maximum UV index in Petersburg typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec579111112121210864
Data source: Petersburg April UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How April Weather in Petersburg Compares to Other Months

Weather in Petersburg varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Petersburg, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Petersburg, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)18 mm (0.7 inches)75%moderate
February Weather6°C (43°F)13 mm (0.5 inches)74%high
March Weather12°C (54°F)48 mm (1.9 inches)66%very high
April Weather16°C (60°F)36 mm (1.4 inches)70%extreme
May Weather21°C (71°F)68 mm (2.7 inches)75%extreme
June Weather26°C (78°F)55 mm (2.2 inches)79%extreme
July Weather27°C (81°F)30 mm (1.2 inches)78%extreme
August Weather27°C (80°F)35 mm (1.4 inches)71%extreme
September Weather23°C (74°F)57 mm (2.3 inches)69%very high
October Weather16°C (61°F)46 mm (1.8 inches)70%very high
November Weather10°C (51°F)16 mm (0.6 inches)82%high
December Weather7°C (44°F)19 mm (0.7 inches)82%moderate

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