nomadseason

December Weather in Harts, United States

Last updated: June 24, 2025

In December, the average temperature in Harts, United States hovers around 5°C (42°F), with a minimum dipping to -13°C (9°F) and a maximum highlighting 21°C (69°F). You can expect 128 mm (5.0 in) of precipitation spread over 11 days, contributing to a notably high average humidity of 86%.

December Temperature in Harts

In December in Harts, the average temperature is 5°C (42°F), with maximums reaching up to 21°C (69°F) and minimums dropping as low as -13°C (9°F). It's advisable to pack layers to accommodate the wide temperature range during your travels.

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

The chart illustrates December temperature patterns in Harts, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Harts, December typically has an average temperature of 5°C (42°F), with highs reaching up to 21°C (69°F) and lows dropping to around -13°C (9°F).
JanFebMarAprMayJunJulAugSepOctNovDec374248566672777470604641
Data source: Temperature data for Harts generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Harts

In Harts in December, the total precipitation amount is 128 mm (5.0 in) spread over 11 days.

December Precipitation Trends in Harts

The chart displays monthly precipitation patterns in Harts, 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 Harts, December typically receives around 128 mm (5.0 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec10116112713214416312211910412078128
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Harts

In Harts in December, humidity is 86%. With an average temperature of 5°C (42°F), this humidity feels like a damp chill that penetrates your layers, making outdoor activities quite uncomfortable and prompting you to seek warmth indoors more often.

December Average Humidity in Harts

This chart illustrates the average monthly humidity levels in Harts, 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 Harts is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%87%86%84%83%83%79%66%68%78%89%86%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Harts

In Harts 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 Harts, you can check the information here.

Maximum UV Index Levels in Harts for December

The chart shows the monthly maximum UV Index (UVI) for Harts 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 Harts typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101010109753
Data source: Harts 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 Harts Compares to Other Months

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

This table compares monthly weather conditions in Harts, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (37°F)101 mm (4.0 inches)87%moderate
February Weather5°C (42°F)161 mm (6.3 inches)87%moderate
March Weather9°C (48°F)127 mm (5.0 inches)86%high
April Weather13°C (56°F)132 mm (5.2 inches)84%very high
May Weather19°C (66°F)143 mm (5.6 inches)83%very high
June Weather22°C (72°F)163 mm (6.4 inches)83%very high
July Weather25°C (77°F)122 mm (4.8 inches)79%very high
August Weather24°C (75°F)119 mm (4.7 inches)66%very high
September Weather21°C (71°F)104 mm (4.1 inches)68%very high
October Weather16°C (61°F)119 mm (4.7 inches)78%high
November Weather8°C (46°F)78 mm (3.1 inches)89%moderate
December Weather5°C (42°F)128 mm (5.0 inches)86%moderate

Compare Harts's Climate with Cities Worldwide