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May Weather in Littleton, United States

Last updated: June 24, 2025

In Littleton, United States, the average temperature in May hovers around 11°C (52°F). However, temperatures can vary widely, with a minimum of -4°C (26°F) and a maximum reaching 32°C (90°F). This month also sees an average precipitation of 108 mm (4.2 in) spread over 13 days, contributing to a notable average humidity of 82%.

May Temperature in Littleton

In May in Littleton, the average temperature is 11°C (52°F), with maximums reaching up to 32°C (90°F) and minimums dropping as low as -4°C (26°F). This range offers a diverse weather experience, making it essential for travelers to pack accordingly for varying conditions.

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

The chart illustrates May 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, May typically has an average temperature of 11°C (52°F), with highs reaching up to 32°C (90°F) and lows dropping to around -4°C (26°F).
JanFebMarAprMayJunJulAugSepOctNovDec161826395262676658463321
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.

May Precipitation in Littleton

In Littleton in May, the precipitation amount is 108 mm (4.2 in), spread across 13 days.

May Precipitation Trends in Littleton

The chart displays monthly precipitation patterns in Littleton, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Littleton, May typically receives around 108 mm (4.2 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec948377110108951018898118117113
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Littleton

In Littleton in May, humidity is 82%. With an average temperature of 11°C (52°F), this humidity feels like a damp chill that seeps into your bones, making it essential to dress in layers and stay prepared for the moisture-laden air as you explore your surroundings.

May Average Humidity in Littleton

This chart illustrates the average monthly humidity levels in Littleton, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Littleton is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%92%90%87%82%77%82%83%85%87%88%90%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Littleton

In Littleton in May, 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 May

The chart shows the monthly maximum UV Index (UVI) for Littleton in May, 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 May, the maximum UV index in Littleton typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2357810887532
Data source: Littleton May 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 May 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 May’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 May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-9°C (16°F)94 mm (3.7 inches)93%low
February Weather-8°C (18°F)83 mm (3.3 inches)92%moderate
March Weather-3°C (26°F)77 mm (3.0 inches)90%moderate
April Weather4°C (40°F)109 mm (4.3 inches)87%high
May Weather11°C (52°F)108 mm (4.2 inches)82%very high
June Weather16°C (62°F)95 mm (3.8 inches)77%very high
July Weather20°C (68°F)101 mm (4.0 inches)81%very high
August Weather19°C (66°F)88 mm (3.5 inches)83%very high
September Weather14°C (58°F)98 mm (3.8 inches)85%high
October Weather8°C (47°F)118 mm (4.6 inches)87%moderate
November Weather0°C (33°F)117 mm (4.6 inches)87%moderate
December Weather-6°C (21°F)113 mm (4.4 inches)90%low

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