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December Weather in Forreston, United States

Last updated: June 24, 2025

In December, the average temperature in Forreston, United States hovers around -1°C (31°F), with extreme lows dropping to -21°C (-6°F) and highs reaching up to 19°C (67°F). Expect approximately 50 mm (2.0 in) of precipitation spread over 6 days, contributing to an average humidity of 81%.

December Temperature in Forreston

In December in Forreston, the average temperature is -1°C (31°F), with maximums reaching 19°C (67°F) and minimums dropping as low as -21°C (-6°F). Travelers should be prepared for a wide range of temperatures, from chilly winter conditions to surprisingly mild days.

December Weather in Forreston: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Forreston, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Forreston, December typically has an average temperature of -1°C (31°F), with highs reaching up to 19°C (67°F) and lows dropping to around -21°C (-6°F).
JanFebMarAprMayJunJulAugSepOctNovDec222538476172757266523731
Data source: Temperature data for Forreston 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.

December Precipitation in Forreston

In Forreston in December, the precipitation amount is 50 mm (2.0 in) over the course of 6 days.

December Precipitation Trends in Forreston

The chart displays monthly precipitation patterns in Forreston, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Forreston, December typically receives around 50 mm (2.0 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec59577210215011880881221114650
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Forreston

In Forreston in December humidity is 81%. With an average temperature of -1°C (31°F), this humidity feels like a heavy, cold mist that clings to your skin, making outdoor adventures damp and challenging.

December Average Humidity in Forreston

This chart illustrates the average monthly humidity levels in Forreston, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Forreston is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%85%85%85%78%80%78%76%79%83%88%82%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Forreston

In Forreston in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Forreston, you can visit Hourly UV Index in Forreston.

Maximum UV Index Levels in Forreston for December

The chart shows the monthly maximum UV Index (UVI) for Forreston in December, 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 December, the maximum UV index in Forreston typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34689101098532
Data source: Forreston December 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 December Weather in Forreston Compares to Other Months

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

This table compares monthly weather conditions in Forreston, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (23°F)59 mm (2.3 inches)85%moderate
February Weather-4°C (25°F)57 mm (2.2 inches)85%moderate
March Weather3°C (38°F)72 mm (2.8 inches)85%high
April Weather9°C (48°F)102 mm (4.0 inches)85%very high
May Weather16°C (61°F)150 mm (5.9 inches)78%very high
June Weather22°C (72°F)118 mm (4.7 inches)80%very high
July Weather24°C (76°F)80 mm (3.2 inches)78%very high
August Weather22°C (72°F)87 mm (3.4 inches)76%very high
September Weather19°C (67°F)122 mm (4.8 inches)79%very high
October Weather11°C (53°F)111 mm (4.4 inches)83%moderate
November Weather3°C (38°F)46 mm (1.8 inches)88%moderate
December Weather-1°C (31°F)50 mm (2.0 inches)81%low

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