nomadseason

December Weather in Reno, United States

Last updated: June 24, 2025

In December, the average temperature in Reno, United States hovers around 4°C (39°F). Temperatures can dip to a chilly -14°C (8°F) at their lowest and reach a moderate 19°C (67°F) at their peak. Expect about 118 mm (4.6 in) of precipitation spread over 12 days, with an average humidity level of 86% contributing to the overall climate experience.

December Temperature in Reno

In December in Reno, the average temperature is 4°C (39°F), with maximums reaching 19°C (67°F) and minimums dropping as low as -14°C (8°F). Travelers should be prepared for a range of temperatures, making layered clothing essential for comfort during their visit.

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

The chart illustrates December temperature patterns in Reno, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Reno, December typically has an average temperature of 4°C (39°F), with highs reaching up to 19°C (67°F) and lows dropping to around -14°C (8°F).
JanFebMarAprMayJunJulAugSepOctNovDec343845546572777470594539
Data source: Temperature data for Reno 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 Reno

In Reno in December, the precipitation amount is 118 mm (4.6 in) spread over 12 days.

December Precipitation Trends in Reno

The chart displays monthly precipitation patterns in Reno, 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 Reno, December typically receives around 118 mm (4.6 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec9412511514715316311912110612082118
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Reno

In Reno in December humidity is 86%. With an average temperature of 4°C (39°F), this humidity feels like a chilly mist enveloping you, making it essential to bundle up while exploring, as each breath comes with a damp chill that can be quite refreshing yet starkly invigorating for travelers.

December Average Humidity in Reno

This chart illustrates the average monthly humidity levels in Reno, 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 Reno is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%88%87%82%84%82%73%74%81%89%86%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Reno

In Reno 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 Reno, you can check the information here.

Maximum UV Index Levels in Reno for December

The chart shows the monthly maximum UV Index (UVI) for Reno 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 Reno typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec357910101098653
Data source: Reno 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 Reno Compares to Other Months

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

This table compares monthly weather conditions in Reno, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)94 mm (3.7 inches)88%moderate
February Weather4°C (39°F)125 mm (4.9 inches)88%moderate
March Weather7°C (46°F)115 mm (4.5 inches)88%high
April Weather12°C (55°F)147 mm (5.8 inches)86%very high
May Weather18°C (65°F)153 mm (6.0 inches)82%very high
June Weather22°C (72°F)163 mm (6.4 inches)84%very high
July Weather25°C (77°F)119 mm (4.7 inches)82%very high
August Weather24°C (75°F)121 mm (4.8 inches)73%very high
September Weather21°C (70°F)106 mm (4.2 inches)73%very high
October Weather15°C (60°F)120 mm (4.7 inches)81%high
November Weather7°C (45°F)82 mm (3.2 inches)89%moderate
December Weather4°C (39°F)118 mm (4.6 inches)86%moderate

Compare Reno's Climate with Cities Worldwide