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April Weather in Littleton, United States

Last updated: June 24, 2025

In Littleton, United States, the average temperature in April hovers around 4°C (40°F). This month can see extremes, with a minimum dipping to -12°C (10°F) and a maximum rising to 24°C (76°F). Expect 125 mm (4.9 in) of precipitation spread over 16 days, contributing to an average humidity of 84%. Stay prepared for a month of variable weather!

April Temperature in Littleton

In April in Littleton, the average temperature is 4°C (40°F). Maximums can reach 24°C (76°F), while minimums can dip as low as -12°C (10°F). Pack accordingly to enjoy a full range of experiences, from chilly adventures to pleasant daytime outings.

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

The chart illustrates April temperature patterns in Littleton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Littleton, April typically has an average temperature of 4°C (40°F), with highs reaching up to 24°C (76°F) and lows dropping to around -12°C (10°F).
JanFebMarAprMayJunJulAugSepOctNovDec172027405362676558473222
Data source: Temperature data for Littleton 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 Littleton

In Littleton in April, the precipitation amount is 125 mm (4.9 in) spread over 16 days.

April Precipitation Trends in Littleton

The chart displays monthly precipitation patterns in Littleton, 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 Littleton, April typically receives around 125 mm (4.9 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec8685771251041091199169140116100
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Littleton

In Littleton in April, humidity is 84%. With an average temperature of 4°C (40°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities uncomfortable and requiring extra layers to stay warm and dry while traveling.

April Average Humidity in Littleton

This chart illustrates the average monthly humidity levels in Littleton, 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 Littleton is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%85%84%78%72%75%74%77%85%86%85%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Littleton

In Littleton 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 Littleton.

Maximum UV Index Levels in Littleton for April

The chart shows the monthly maximum UV Index (UVI) for Littleton 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 Littleton typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2468910997532
Data source: Littleton 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 Littleton Compares to Other Months

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

This table compares monthly weather conditions in Littleton, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-8°C (17°F)86 mm (3.4 inches)91%low
February Weather-7°C (20°F)85 mm (3.4 inches)89%moderate
March Weather-3°C (27°F)77 mm (3.0 inches)85%high
April Weather4°C (40°F)125 mm (4.9 inches)84%very high
May Weather12°C (53°F)104 mm (4.1 inches)78%very high
June Weather17°C (62°F)109 mm (4.3 inches)72%very high
July Weather19°C (67°F)119 mm (4.7 inches)75%very high
August Weather18°C (66°F)91 mm (3.6 inches)74%very high
September Weather15°C (58°F)69 mm (2.7 inches)77%high
October Weather8°C (47°F)140 mm (5.5 inches)85%moderate
November Weather0°C (32°F)116 mm (4.6 inches)86%moderate
December Weather-6°C (22°F)100 mm (3.9 inches)85%low

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