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December Weather in Nelson, United States

Last updated: June 24, 2025

In Nelson, United States, the average temperature in December hovers around 1°C (33°F). Expect minimums dipping to -19°C (-1°F) and maximums soaring up to 22°C (72°F). This month also sees an average precipitation of 39 mm (1.5 in) spread over 3 days, alongside a relatively high average humidity of 79%.

December Temperature in Nelson

In December in Nelson, the average temperature is 1°C (33°F). The maximum can reach 22°C (72°F), while the minimum can drop to as low as -19°C (-1°F). Be prepared for a wide range of temperatures during your travels, and dress accordingly!

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

The chart illustrates December temperature patterns in Nelson, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Nelson, December typically has an average temperature of 1°C (33°F), with highs reaching up to 22°C (72°F) and lows dropping to around -19°C (-1°F).
JanFebMarAprMayJunJulAugSepOctNovDec282842516376797570534133
Data source: Temperature data for Nelson 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 Nelson

In Nelson in December, the precipitation amount is 39 mm (1.5 in) over a span of 3 days.

December Precipitation Trends in Nelson

The chart displays monthly precipitation patterns in Nelson, 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 Nelson, December typically receives around 39 mm (1.5 inches) of precipitation spread over approximately 3 days.
JanFebMarAprMayJunJulAugSepOctNovDec2822864517386668569882239
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Nelson

In Nelson in December, humidity is 79%. With an average temperature of 1°C (33°F), this humidity feels like an icy blanket enveloping you, making travel quite uncomfortable as the cold dampness seeps into your clothes and chills you to the bone.

December Average Humidity in Nelson

This chart illustrates the average monthly humidity levels in Nelson, 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 Nelson is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec73%81%69%71%80%83%84%84%77%72%80%79%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Nelson

In Nelson 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 Nelson, you can check the information here.

Maximum UV Index Levels in Nelson for December

The chart shows the monthly maximum UV Index (UVI) for Nelson 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 Nelson typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3569101111108643
Data source: Nelson 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 Nelson Compares to Other Months

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

This table compares monthly weather conditions in Nelson, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (28°F)28 mm (1.1 inches)73%moderate
February Weather-2°C (28°F)22 mm (0.9 inches)81%moderate
March Weather6°C (43°F)86 mm (3.4 inches)69%high
April Weather11°C (51°F)45 mm (1.8 inches)71%very high
May Weather17°C (63°F)173 mm (6.8 inches)80%very high
June Weather24°C (76°F)86 mm (3.4 inches)83%extreme
July Weather26°C (79°F)66 mm (2.6 inches)84%extreme
August Weather24°C (76°F)85 mm (3.3 inches)84%very high
September Weather21°C (71°F)69 mm (2.7 inches)77%very high
October Weather12°C (53°F)88 mm (3.5 inches)72%high
November Weather5°C (42°F)22 mm (0.9 inches)80%moderate
December Weather1°C (33°F)39 mm (1.5 inches)79%moderate

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