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April Weather in Hamilton, United States

Last updated: June 24, 2025

In Hamilton, United States, the average temperature in April hovers around 7°C (44°F). Expect a minimum chill of -7°C (20°F) and occasional highs reaching 26°C (78°F). This month typically sees around 121 mm (4.7 in) of precipitation spread over 17 days, making for quite a humid experience with an average humidity of 88%.

April Temperature in Hamilton

In April in Hamilton, the average temperature is 7°C (44°F), with maximums reaching 26°C (78°F) and minimums dropping as low as -7°C (20°F). This variation in temperatures makes it essential for travelers to pack layers to stay comfortable throughout the day.

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

The chart illustrates April temperature patterns in Hamilton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hamilton, April typically has an average temperature of 7°C (44°F), with highs reaching up to 26°C (78°F) and lows dropping to around -7°C (20°F).
JanFebMarAprMayJunJulAugSepOctNovDec232632445665706861513729
Data source: Temperature data for Hamilton 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 Hamilton

In Hamilton in April, the total precipitation amount is 121 mm (4.7 in), spread over 17 days.

April Precipitation Trends in Hamilton

The chart displays monthly precipitation patterns in Hamilton, 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 Hamilton, April typically receives around 121 mm (4.7 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec921019312113411916713796169108104
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Hamilton

In Hamilton in April, humidity is 88%. With an average temperature of 7°C (44°F), this humidity feels like an unwelcoming chill that clings to your skin, making outdoor exploration uncomfortable and prompting frequent breaks in sheltered areas.

April Average Humidity in Hamilton

This chart illustrates the average monthly humidity levels in Hamilton, 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 Hamilton is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%90%87%88%82%79%78%76%78%84%89%86%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Hamilton

In Hamilton 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 Hamilton.

Maximum UV Index Levels in Hamilton for April

The chart shows the monthly maximum UV Index (UVI) for Hamilton 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 Hamilton typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34691010998642
Data source: Hamilton 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 Hamilton Compares to Other Months

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

This table compares monthly weather conditions in Hamilton, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (24°F)92 mm (3.6 inches)90%moderate
February Weather-3°C (27°F)101 mm (4.0 inches)90%moderate
March Weather0°C (33°F)93 mm (3.7 inches)87%high
April Weather7°C (44°F)121 mm (4.7 inches)88%very high
May Weather14°C (57°F)134 mm (5.3 inches)82%very high
June Weather18°C (65°F)119 mm (4.7 inches)79%very high
July Weather21°C (70°F)167 mm (6.6 inches)78%very high
August Weather20°C (68°F)137 mm (5.4 inches)76%very high
September Weather16°C (62°F)96 mm (3.8 inches)78%very high
October Weather11°C (52°F)168 mm (6.6 inches)84%high
November Weather3°C (37°F)108 mm (4.3 inches)89%moderate
December Weather-2°C (29°F)103 mm (4.1 inches)86%low

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