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December Weather in Gateway, United States

Last updated: June 24, 2025

In December, the average temperature in Gateway, United States hovers around 20°C (68°F). Temperatures can vary, with a minimum of 6°C (43°F) and a maximum reaching 30°C (86°F). Expect about 46 mm (1.8 in) of precipitation across 5 days, accompanied by a high average humidity of 84%.

December Temperature in Gateway

In December in Gateway, the average temperature is 20°C (68°F). Maximums can reach 30°C (86°F), while minimums can drop as low as 6°C (43°F). This pleasant climate makes Gateway an ideal destination for travelers seeking mild weather and outdoor adventures.

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

The chart illustrates December temperature patterns in Gateway, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Gateway, December typically has an average temperature of 20°C (68°F), with highs reaching up to 30°C (86°F) and lows dropping to around 6°C (43°F).
JanFebMarAprMayJunJulAugSepOctNovDec657071767981828282807368
Data source: Temperature data for Gateway 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 Gateway

In Gateway in December, the precipitation amount is 46 mm (1.8 in) recorded over a span of 5 days.

December Precipitation Trends in Gateway

The chart displays monthly precipitation patterns in Gateway, 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 Gateway, December typically receives around 46 mm (1.8 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec36392348145221247239188864746
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Gateway

In Gateway in December humidity is 84%. With an average temperature of 20°C (68°F), this humidity feels like a warm, enveloping blanket, making travel a challenge as the air clings to your skin, and every step feels heavier in the mugginess.

December Average Humidity in Gateway

This chart illustrates the average monthly humidity levels in Gateway, 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 Gateway is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%80%75%68%65%73%77%80%83%83%83%84%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Gateway

In Gateway in December, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Gateway, you can refer to this Hourly UV Index in Gateway.

Maximum UV Index Levels in Gateway for December

The chart shows the monthly maximum UV Index (UVI) for Gateway 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 Gateway typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec69101212121212111076
Data source: Gateway 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 Gateway Compares to Other Months

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

This table compares monthly weather conditions in Gateway, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather18°C (65°F)36 mm (1.4 inches)83%high
February Weather21°C (70°F)39 mm (1.5 inches)80%very high
March Weather22°C (72°F)23 mm (0.9 inches)75%very high
April Weather25°C (77°F)48 mm (1.9 inches)68%extreme
May Weather26°C (80°F)145 mm (5.7 inches)65%extreme
June Weather27°C (82°F)221 mm (8.7 inches)73%extreme
July Weather28°C (82°F)247 mm (9.7 inches)77%extreme
August Weather28°C (83°F)239 mm (9.4 inches)80%extreme
September Weather28°C (82°F)188 mm (7.4 inches)83%extreme
October Weather26°C (80°F)86 mm (3.4 inches)83%very high
November Weather23°C (73°F)47 mm (1.9 inches)83%high
December Weather20°C (68°F)46 mm (1.8 inches)84%high

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