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December Weather in Mount Ayr, United States

Last updated: June 24, 2025

In December, the average temperature in Mount Ayr, United States hovers around 0°C (33°F). Enjoy a range that can dip to a chilly -24°C (-11°F) at its coldest and reach a pleasant 22°C (72°F) at its warmest. Expect 38 mm (1.5 in) of precipitation over about 3 days, with an average humidity of 83%, making it a notably moist month.

December Temperature in Mount Ayr

In December in Mount Ayr, the average temperature is 0°C (33°F). The maximum can reach 22°C (72°F) and the minimum can be as low as -24°C (-11°F). Be prepared for a wide range of temperatures when traveling to Mount Ayr this month, from chilly mornings to potentially warm afternoons.

December Weather in Mount Ayr: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Mount Ayr, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mount Ayr, December typically has an average temperature of 0°C (33°F), with highs reaching up to 22°C (72°F) and lows dropping to around -24°C (-11°F).
JanFebMarAprMayJunJulAugSepOctNovDec242641506375777469534032
Data source: Temperature data for Mount Ayr 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 Mount Ayr

In Mount Ayr in December, the total precipitation amount is 38 mm (1.5 in) spread over a duration of 3 days.

December Precipitation Trends in Mount Ayr

The chart displays monthly precipitation patterns in Mount Ayr, 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 Mount Ayr, December typically receives around 38 mm (1.5 inches) of precipitation spread over approximately 3 days.
JanFebMarAprMayJunJulAugSepOctNovDec42359671171125107971301604438
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Mount Ayr

In Mount Ayr in December, humidity is 83%. With an average temperature of 0°C (33°F), this humidity feels like a cold, damp chill that cuts through layers of clothing, making travel uncomfortable and brisk as each breath fills the lungs with icy moisture.

December Average Humidity in Mount Ayr

This chart illustrates the average monthly humidity levels in Mount Ayr, 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 Mount Ayr is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec78%80%77%78%77%81%81%77%73%75%85%83%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Mount Ayr

In Mount Ayr 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 Mount Ayr, you can check the information here.

Maximum UV Index Levels in Mount Ayr for December

The chart shows the monthly maximum UV Index (UVI) for Mount Ayr 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 Mount Ayr typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910111098643
Data source: Mount Ayr 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 Mount Ayr Compares to Other Months

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

This table compares monthly weather conditions in Mount Ayr, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (25°F)41 mm (1.6 inches)78%moderate
February Weather-3°C (27°F)35 mm (1.4 inches)80%moderate
March Weather5°C (42°F)96 mm (3.8 inches)77%high
April Weather10°C (51°F)71 mm (2.8 inches)77%very high
May Weather17°C (63°F)171 mm (6.7 inches)77%very high
June Weather24°C (75°F)125 mm (4.9 inches)81%extreme
July Weather25°C (78°F)106 mm (4.2 inches)81%very high
August Weather24°C (75°F)97 mm (3.8 inches)77%very high
September Weather20°C (69°F)130 mm (5.1 inches)73%very high
October Weather12°C (53°F)160 mm (6.3 inches)75%high
November Weather4°C (40°F)44 mm (1.7 inches)85%moderate
December Weather0°C (33°F)38 mm (1.5 inches)83%moderate

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