nomadseason

April Weather in New Haven, United States

Last updated: June 24, 2025

In April, the average temperature in New Haven, United States is a brisk 8°C (47°F). Expect minimums dipping to -1°C (30°F) and a pleasant maximum of 20°C (69°F). During this time, the region receives about 153 mm (6.0 in) of precipitation over 12 days, coupled with an average humidity of 78%. Stay prepared for a mix of chilly and refreshing days!

April Temperature in New Haven

In April in New Haven, the average temperature is 8°C (47°F). The maximum can reach 20°C (69°F) and the minimum can be as low as -1°C (30°F). It's advisable for travelers to prepare for a mix of mild and cool weather during this time.

April Weather in New Haven: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in New Haven, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In New Haven, April typically has an average temperature of 8°C (47°F), with highs reaching up to 20°C (69°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec333539475766747468604738
Data source: Temperature data for New Haven generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

April Precipitation in New Haven

In New Haven in April, the total precipitation amount is 153 mm (6.0 in), occurring over the course of 12 days.

April Precipitation Trends in New Haven

The chart displays monthly precipitation patterns in New Haven, 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 New Haven, April typically receives around 153 mm (6.0 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec901321091531309313297108171112160
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

April Humidity in New Haven

In New Haven in April, humidity is 78%. With an average temperature of 8°C (47°F), this humidity feels like a chilly embrace, making travel invigorating yet damp, as the cool air wraps around you, emphasizing the need for layers to stay comfortable while exploring.

April Average Humidity in New Haven

This chart illustrates the average monthly humidity levels in New Haven, 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 New Haven is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%82%81%78%70%69%62%65%68%74%82%80%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in New Haven

In New Haven in April, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in New Haven.

Maximum UV Index Levels in New Haven for April

The chart shows the monthly maximum UV Index (UVI) for New Haven 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 New Haven typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35681010998642
Data source: New Haven 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 New Haven Compares to Other Months

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

This table compares monthly weather conditions in New Haven, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)90 mm (3.5 inches)84%moderate
February Weather1°C (35°F)132 mm (5.2 inches)82%moderate
March Weather4°C (39°F)109 mm (4.3 inches)81%high
April Weather8°C (47°F)153 mm (6.0 inches)78%very high
May Weather14°C (57°F)130 mm (5.1 inches)69%very high
June Weather19°C (67°F)93 mm (3.7 inches)69%very high
July Weather23°C (74°F)132 mm (5.2 inches)62%very high
August Weather23°C (74°F)96 mm (3.8 inches)65%very high
September Weather20°C (69°F)108 mm (4.3 inches)68%very high
October Weather15°C (60°F)171 mm (6.7 inches)74%high
November Weather8°C (47°F)112 mm (4.4 inches)82%moderate
December Weather4°C (39°F)160 mm (6.3 inches)80%low

Compare New Haven's Climate with Cities Worldwide