April Weather in Northwest Harwinton, United States

Last updated: June 24, 2025

In April, the average temperature in Northwest Harwinton, United States hovers around 9°C (48°F). Expect a chilly minimum of -5°C (23°F) and a pleasant maximum of 28°C (84°F). The region experiences an average precipitation of 136 mm (5.3 in) spread over 13 days, contributing to a humidity level of 78%. Prepare for a mix of cool breezes and occasional showers!

April Temperature in Northwest Harwinton

In April in Northwest Harwinton, the average temperature is 9°C (48°F). Maximum temperatures can reach 28°C (84°F), while the minimum can drop as low as -5°C (23°F). Be prepared for a wide range of temperatures when traveling to Northwest Harwinton during this time.

April Weather in Northwest Harwinton: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Northwest Harwinton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Northwest Harwinton, April typically has an average temperature of 9°C (48°F), with highs reaching up to 28°C (84°F) and lows dropping to around -5°C (23°F).

Data source: Temperature data for Northwest Harwinton generated using information from the Copernicus Climate Change Service.

April Precipitation in Northwest Harwinton

In Northwest Harwinton in April, the total precipitation amount is 136 mm (5.3 in), spread over 13 days.

April Precipitation Trends in Northwest Harwinton

The chart displays monthly precipitation patterns in Northwest Harwinton, 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 Northwest Harwinton, April typically receives around 136 mm (5.3 inches) of precipitation spread over approximately 13 days.

Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

April Humidity in Northwest Harwinton

In Northwest Harwinton in April humidity is 78%. With an average temperature of 9°C (48°F), this humidity feels like a damp chill that clings to your skin, making outdoor excursions less enjoyable as you navigate the damp air.

April Average Humidity in Northwest Harwinton

This chart illustrates the average monthly humidity levels in Northwest Harwinton, 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 Northwest Harwinton is approximately 78%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Northwest Harwinton

In Northwest Harwinton 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 Northwest Harwinton.

Maximum UV Index Levels in Northwest Harwinton for April

The chart shows the monthly maximum UV Index (UVI) for Northwest Harwinton 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 Northwest Harwinton typically reaches 8, which falls under the very high exposure category.

Data source: Northwest Harwinton 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 Northwest Harwinton Compares to Other Months

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

This table compares monthly weather conditions in Northwest Harwinton, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-2°C (29°F)	73 mm (2.9 inches)	84%	moderate
February Weather	0°C (32°F)	93 mm (3.7 inches)	82%	moderate
March Weather	3°C (38°F)	91 mm (3.6 inches)	81%	high
April Weather	9°C (48°F)	136 mm (5.3 inches)	78%	very high
May Weather	15°C (59°F)	120 mm (4.7 inches)	69%	very high
June Weather	20°C (69°F)	103 mm (4.1 inches)	69%	very high
July Weather	23°C (74°F)	162 mm (6.4 inches)	62%	very high
August Weather	22°C (73°F)	107 mm (4.2 inches)	65%	very high
September Weather	19°C (66°F)	122 mm (4.8 inches)	68%	very high
October Weather	13°C (56°F)	152 mm (6.0 inches)	74%	high
November Weather	5°C (42°F)	95 mm (3.7 inches)	82%	moderate
December Weather	1°C (33°F)	123 mm (4.9 inches)	80%	low