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April Weather in Hamden, United States

Last updated: June 24, 2025

In April, the average temperature in Hamden, United States hovers around 12°C (54°F). Expect temperatures to fluctuate between a minimum of -4°C (25°F) and a maximum of 30°C (86°F). This month also brings 135 mm (5.3 in) of precipitation over about 13 days, with humidity levels averaging around 85%.

April Temperature in Hamden

In April in Hamden, the average temperature is 12°C (54°F), with maximums reaching 30°C (86°F) and minimums dropping as low as -4°C (25°F). This variation in temperature makes it essential for travelers to pack accordingly to enjoy their visit comfortably.

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

The chart illustrates April temperature patterns in Hamden, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hamden, April typically has an average temperature of 12°C (54°F), with highs reaching up to 30°C (86°F) and lows dropping to around -4°C (25°F).
JanFebMarAprMayJunJulAugSepOctNovDec333745546572777570594438
Data source: Temperature data for Hamden 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 Hamden

In Hamden in April, the precipitation amount is 135 mm (5.3 in) over the course of 13 days.

April Precipitation Trends in Hamden

The chart displays monthly precipitation patterns in Hamden, 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 Hamden, April typically receives around 135 mm (5.3 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec861221211351331421121139910986116
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Hamden

In Hamden in April, humidity is 85%. With an average temperature of 12°C (54°F), this humidity feels like a heavy blanket wrapping around you, making traveling not only uncomfortable but also exhausting as the damp air clings to your skin and slows your movements.

April Average Humidity in Hamden

This chart illustrates the average monthly humidity levels in Hamden, 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 Hamden is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%87%85%81%82%81%73%73%78%89%87%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Hamden

In Hamden 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 Hamden.

Maximum UV Index Levels in Hamden for April

The chart shows the monthly maximum UV Index (UVI) for Hamden 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 Hamden typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec357910101098643
Data source: Hamden 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 Hamden Compares to Other Months

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

This table compares monthly weather conditions in Hamden, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)86 mm (3.4 inches)88%moderate
February Weather3°C (38°F)122 mm (4.8 inches)88%moderate
March Weather7°C (45°F)120 mm (4.7 inches)87%high
April Weather12°C (54°F)135 mm (5.3 inches)85%very high
May Weather18°C (65°F)133 mm (5.2 inches)81%very high
June Weather22°C (72°F)142 mm (5.6 inches)82%very high
July Weather25°C (77°F)112 mm (4.4 inches)81%very high
August Weather24°C (75°F)113 mm (4.4 inches)73%very high
September Weather21°C (70°F)99 mm (3.9 inches)73%very high
October Weather15°C (59°F)109 mm (4.3 inches)78%high
November Weather7°C (44°F)86 mm (3.4 inches)89%moderate
December Weather4°C (39°F)116 mm (4.6 inches)87%moderate

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