nomadseason

December Weather in Chapman, United States

Last updated: June 24, 2025

In Chapman, United States, the average temperature in December hovers around 3°C (37°F), bringing a mix of chilly days and occasional warmth. Expect the minimum to drop to a brisk -16°C (3°F), while maximum highs can reach a comfortable 23°C (74°F). With an average humidity of 84% and about 26 mm (1.0 in) of precipitation spread over 3 days, it's wise to prepare for a blend of frost and refreshing rainfall.

December Temperature in Chapman

In December in Chapman, the average temperature is 3°C (37°F). The maximum can reach 23°C (74°F), and the minimum can be as low as -16°C (3°F). It's a time for travelers to prepare for a wide range of temperatures, ensuring they bring both warm clothing and lighter layers for the milder days.

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

The chart illustrates December temperature patterns in Chapman, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Chapman, December typically has an average temperature of 3°C (37°F), with highs reaching up to 23°C (74°F) and lows dropping to around -16°C (3°F).
JanFebMarAprMayJunJulAugSepOctNovDec323346556679817873574437
Data source: Temperature data for Chapman 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 Chapman

In Chapman in December, the precipitation amount is 26 mm (1.0 in) recorded over the course of 3 days.

December Precipitation Trends in Chapman

The chart displays monthly precipitation patterns in Chapman, 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 Chapman, December typically receives around 26 mm (1.0 inches) of precipitation spread over approximately 3 days.
JanFebMarAprMayJunJulAugSepOctNovDec30287769187758411664923226
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Chapman

In Chapman in December humidity is 84%. With an average temperature of 3°C (37°F), this humidity feels like a damp chill that seeps into your bones, making outdoor excursions brisk and invigorating, yet requiring extra layers to stay comfortable.

December Average Humidity in Chapman

This chart illustrates the average monthly humidity levels in Chapman, 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 Chapman is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%78%70%73%82%82%81%78%71%71%81%84%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Chapman

In Chapman 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 Chapman, you can check the information here.

Maximum UV Index Levels in Chapman for December

The chart shows the monthly maximum UV Index (UVI) for Chapman 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 Chapman typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3569101111109643
Data source: Chapman 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 Chapman Compares to Other Months

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

This table compares monthly weather conditions in Chapman, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)30 mm (1.2 inches)76%moderate
February Weather0°C (33°F)28 mm (1.1 inches)77%moderate
March Weather8°C (47°F)77 mm (3.0 inches)70%high
April Weather13°C (55°F)69 mm (2.7 inches)73%very high
May Weather19°C (66°F)187 mm (7.4 inches)82%very high
June Weather26°C (79°F)75 mm (2.9 inches)82%extreme
July Weather27°C (82°F)84 mm (3.3 inches)81%extreme
August Weather25°C (78°F)116 mm (4.6 inches)78%very high
September Weather23°C (73°F)64 mm (2.5 inches)71%very high
October Weather14°C (57°F)92 mm (3.6 inches)71%high
November Weather7°C (45°F)32 mm (1.2 inches)81%moderate
December Weather3°C (37°F)26 mm (1.0 inches)84%moderate

Compare Chapman's Climate with Cities Worldwide