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December Weather in Morton, United States

Last updated: June 24, 2025

In December, the average temperature in Morton, United States hovers around 2°C (37°F), with a minimum dropping to a brisk -10°C (14°F) and a maximum reaching a mild 13°C (55°F). During this period, expect approximately 267 mm (10.5 in) of precipitation over 21 days, contributing to a high average humidity of 88%. 🌧️ Stay prepared for a chilly and wet month!

December Temperature in Morton

In December in Morton, the average temperature is 2°C (37°F). Maximums can reach 13°C (55°F) and minimums can be as low as -10°C (14°F). Travelers should be prepared for chilly weather and pack accordingly to stay warm.

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

The chart illustrates December temperature patterns in Morton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Morton, December typically has an average temperature of 2°C (37°F), with highs reaching up to 13°C (55°F) and lows dropping to around -10°C (14°F).
JanFebMarAprMayJunJulAugSepOctNovDec363539455257636458474136
Data source: Temperature data for Morton 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 Morton

In Morton in December, the precipitation amount is 267 mm (10.5 in) distributed over 21 days.

December Precipitation Trends in Morton

The chart displays monthly precipitation patterns in Morton, 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 Morton, December typically receives around 267 mm (10.5 inches) of precipitation spread over approximately 21 days.
JanFebMarAprMayJunJulAugSepOctNovDec240286182159103852325108196246267
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Morton

In Morton in December, humidity is 88%. With an average temperature of 2°C (37°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities uncomfortable and travel less enjoyable.

December Average Humidity in Morton

This chart illustrates the average monthly humidity levels in Morton, 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 Morton is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%86%87%84%81%82%79%63%62%83%89%88%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Morton

In Morton 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 Morton, you can visit Hourly UV Index in Morton.

Maximum UV Index Levels in Morton for December

The chart shows the monthly maximum UV Index (UVI) for Morton 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 Morton typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24579101087532
Data source: Morton 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 Morton Compares to Other Months

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

This table compares monthly weather conditions in Morton, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (36°F)240 mm (9.4 inches)86%low
February Weather1°C (35°F)286 mm (11.3 inches)86%moderate
March Weather4°C (40°F)182 mm (7.2 inches)87%moderate
April Weather7°C (45°F)159 mm (6.3 inches)84%high
May Weather11°C (52°F)103 mm (4.1 inches)81%very high
June Weather14°C (57°F)85 mm (3.3 inches)82%very high
July Weather17°C (63°F)23 mm (0.9 inches)79%very high
August Weather18°C (64°F)25 mm (1.0 inches)63%very high
September Weather14°C (58°F)108 mm (4.3 inches)62%high
October Weather8°C (47°F)196 mm (7.7 inches)83%moderate
November Weather5°C (41°F)246 mm (9.7 inches)89%moderate
December Weather2°C (37°F)267 mm (10.5 inches)88%low

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