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December Weather in Spencer, United States

Last updated: June 24, 2025

In December, the average temperature in Spencer, United States hovers around 4°C (40°F). Expect a range as low as -14°C (7°F) and soaring up to 21°C (69°F). With 124 mm (4.9 in) of precipitation over 12 days, you'll want to prepare for some wet weather. The air is quite humid, with an average humidity level of 86%.

December Temperature in Spencer

In December in Spencer, the average temperature is 4°C (40°F), with maximums reaching 21°C (69°F) and minimums dropping as low as -14°C (7°F). Travelers should prepare for a wide range of temperatures and pack accordingly to ensure comfort during their visit.

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

The chart illustrates December temperature patterns in Spencer, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Spencer, December typically has an average temperature of 4°C (40°F), with highs reaching up to 21°C (69°F) and lows dropping to around -14°C (7°F).
JanFebMarAprMayJunJulAugSepOctNovDec354046556571767469604540
Data source: Temperature data for Spencer 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 Spencer

In Spencer in December, the total precipitation amount is 124 mm (4.9 in) over a span of 12 days.

December Precipitation Trends in Spencer

The chart displays monthly precipitation patterns in Spencer, 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 Spencer, December typically receives around 124 mm (4.9 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec10214811713916217013512610511982124
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Spencer

In Spencer in December humidity is 86%. 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 travel cumbersome as you navigate through a thick, heavy air that clings to your skin.

December Average Humidity in Spencer

This chart illustrates the average monthly humidity levels in Spencer, 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 Spencer is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%88%87%82%84%82%73%74%81%89%86%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Spencer

In Spencer in December, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Spencer, you can check the information here.

Maximum UV Index Levels in Spencer for December

The chart shows the monthly maximum UV Index (UVI) for Spencer 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 Spencer typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101010108753
Data source: Spencer 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 Spencer Compares to Other Months

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

This table compares monthly weather conditions in Spencer, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (36°F)102 mm (4.0 inches)88%moderate
February Weather5°C (41°F)148 mm (5.8 inches)88%moderate
March Weather8°C (47°F)117 mm (4.6 inches)88%high
April Weather13°C (55°F)139 mm (5.5 inches)86%very high
May Weather18°C (65°F)162 mm (6.4 inches)82%very high
June Weather22°C (72°F)170 mm (6.7 inches)84%very high
July Weather24°C (76°F)135 mm (5.3 inches)82%very high
August Weather23°C (74°F)126 mm (5.0 inches)73%very high
September Weather21°C (70°F)105 mm (4.1 inches)73%very high
October Weather15°C (60°F)119 mm (4.7 inches)81%high
November Weather7°C (45°F)82 mm (3.2 inches)89%moderate
December Weather4°C (40°F)124 mm (4.9 inches)86%moderate

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