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January Weather in Riverton, United States

Last updated: June 24, 2025

In January, the average temperature in Riverton, United States hovers around 3°C (37°F). Temperatures can range from a chilly -17°C (1°F) to a mild 21°C (70°F), while the region experiences around 78 mm (3.1 in) of precipitation over 7 days. Expect a notably high average humidity of 81%, making the air feel quite damp during this time of year.

January Temperature in Riverton

In January in Riverton, the average temperature is 3°C (37°F). The maximum can reach 21°C (70°F), and the minimum can be as low as -17°C (1°F). Be prepared for a wide range of temperatures when traveling to Riverton during this month.

January Weather in Riverton: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Riverton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Riverton, January typically has an average temperature of 3°C (37°F), with highs reaching up to 21°C (70°F) and lows dropping to around -17°C (1°F).
JanFebMarAprMayJunJulAugSepOctNovDec373951576878817874604843
Data source: Temperature data for Riverton 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.

January Precipitation in Riverton

In Riverton in January, the total precipitation amount is 78 mm (3.1 in) over a duration of 7 days.

January Precipitation Trends in Riverton

The chart displays monthly precipitation patterns in Riverton, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Riverton, January typically receives around 78 mm (3.1 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec786813913320692102110841355650
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Riverton

In Riverton in January, humidity is 81%. With an average temperature of 3°C (37°F), this humidity feels like a cold, damp blanket wrapping around you, making travel uncomfortable and only for the most adventurous.

January Average Humidity in Riverton

This chart illustrates the average monthly humidity levels in Riverton, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Riverton is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec81%78%76%78%83%83%78%68%64%70%83%87%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Riverton

In Riverton in January, 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 Riverton, you can check the information here.

Maximum UV Index Levels in Riverton for January

The chart shows the monthly maximum UV Index (UVI) for Riverton in January, 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 January, the maximum UV index in Riverton typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec36710101111109753
Data source: Riverton January 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 January Weather in Riverton Compares to Other Months

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

This table compares monthly weather conditions in Riverton, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (37°F)78 mm (3.1 inches)81%moderate
February Weather4°C (39°F)68 mm (2.7 inches)78%high
March Weather11°C (51°F)139 mm (5.5 inches)76%high
April Weather14°C (58°F)133 mm (5.2 inches)78%very high
May Weather20°C (68°F)206 mm (8.1 inches)83%very high
June Weather25°C (78°F)92 mm (3.6 inches)83%extreme
July Weather27°C (81°F)102 mm (4.0 inches)78%extreme
August Weather26°C (79°F)110 mm (4.3 inches)68%very high
September Weather24°C (75°F)84 mm (3.3 inches)64%very high
October Weather16°C (60°F)135 mm (5.3 inches)70%high
November Weather9°C (48°F)56 mm (2.2 inches)83%moderate
December Weather6°C (43°F)49 mm (1.9 inches)87%moderate

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