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December Weather in Rosman, United States

Last updated: June 24, 2025

In December, the average temperature in Rosman, United States hovers around 5°C (42°F). The weather can be unpredictable, with temperatures dipping as low as -14°C (8°F) and peaking at 22°C (72°F). Expect about 138 mm (5.4 in) of precipitation over 9 days, accompanied by a high average humidity of 88%. Be prepared for a mix of chilly days and occasional warmth!

December Temperature in Rosman

In December in Rosman, the average temperature is 5°C (42°F), with maximums reaching 22°C (72°F) and minimums dropping as low as -14°C (8°F). Be prepared for a wide range of temperatures, making layers essential for a comfortable travel experience.

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

The chart illustrates December temperature patterns in Rosman, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rosman, December typically has an average temperature of 5°C (42°F), with highs reaching up to 22°C (72°F) and lows dropping to around -14°C (8°F).
JanFebMarAprMayJunJulAugSepOctNovDec384448556369727167594641
Data source: Temperature data for Rosman 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 Rosman

In Rosman in December, the precipitation amount is 138 mm (5.4 in) spread over 9 days.

December Precipitation Trends in Rosman

The chart displays monthly precipitation patterns in Rosman, 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 Rosman, December typically receives around 138 mm (5.4 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec10514211014313810813616014517289138
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Rosman

In Rosman in December humidity is 88%. With an average temperature of 5°C (42°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less appealing and leading you to seek warmth indoors instead.

December Average Humidity in Rosman

This chart illustrates the average monthly humidity levels in Rosman, 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 Rosman is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%86%86%82%85%85%83%76%76%80%88%88%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Rosman

In Rosman in December, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Rosman for better planning.

Maximum UV Index Levels in Rosman for December

The chart shows the monthly maximum UV Index (UVI) for Rosman 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 Rosman typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec478111111111010864
Data source: Rosman 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 Rosman Compares to Other Months

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

This table compares monthly weather conditions in Rosman, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (38°F)105 mm (4.1 inches)86%moderate
February Weather6°C (44°F)142 mm (5.6 inches)86%high
March Weather9°C (48°F)110 mm (4.3 inches)86%very high
April Weather13°C (55°F)143 mm (5.6 inches)82%extreme
May Weather17°C (63°F)138 mm (5.4 inches)85%extreme
June Weather20°C (69°F)108 mm (4.2 inches)85%extreme
July Weather22°C (72°F)136 mm (5.4 inches)83%extreme
August Weather21°C (71°F)160 mm (6.3 inches)76%very high
September Weather19°C (67°F)145 mm (5.7 inches)76%very high
October Weather15°C (59°F)172 mm (6.8 inches)80%very high
November Weather8°C (46°F)89 mm (3.5 inches)88%high
December Weather5°C (42°F)138 mm (5.4 inches)88%moderate

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