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April Weather in Petersburg, United States

Last updated: June 24, 2025

In Petersburg, United States, the average temperature in April hovers around 11°C (53°F), with a minimum dipping to -7°C (19°F) and a maximum reaching 29°C (84°F). Expect about 127 mm (5.0 in) of precipitation spread over 11 days, accompanied by an average humidity of 83%. Ideal weather for those who enjoy a mix of crisp air and occasional showers!

April Temperature in Petersburg

In April in Petersburg, the average temperature is 11°C (53°F), with maximums reaching 29°C (84°F) and minimums plunging to as low as -7°C (19°F). Travelers should be prepared for a wide range of temperatures during this time.

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 11°C (53°F), with highs reaching up to 29°C (84°F) and lows dropping to around -7°C (19°F).
JanFebMarAprMayJunJulAugSepOctNovDec283143526575777471574236
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 127 mm (5.0 in), occurring over 11 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 127 mm (5.0 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec676713212714613011786661086752
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 83%. With an average temperature of 11°C (53°F), this humidity feels like a heavy blanket wrapping around you, making every step feel sluggish and causing an inevitable sheen of sweat to form, which can dampen the joy of exploring your 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 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%82%84%83%80%83%82%83%79%79%88%87%
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 is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, 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 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec357910111198643
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 Weather-2°C (29°F)67 mm (2.6 inches)84%moderate
February Weather0°C (32°F)67 mm (2.6 inches)82%moderate
March Weather6°C (44°F)132 mm (5.2 inches)84%high
April Weather11°C (53°F)127 mm (5.0 inches)83%very high
May Weather18°C (66°F)146 mm (5.7 inches)80%very high
June Weather24°C (75°F)130 mm (5.1 inches)83%extreme
July Weather25°C (78°F)117 mm (4.6 inches)82%extreme
August Weather24°C (75°F)86 mm (3.4 inches)82%very high
September Weather22°C (71°F)66 mm (2.6 inches)79%very high
October Weather14°C (57°F)108 mm (4.3 inches)79%high
November Weather5°C (42°F)67 mm (2.6 inches)88%moderate
December Weather2°C (36°F)52 mm (2.0 inches)87%moderate

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