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February Weather in Sun Valley, United States

Last updated: June 24, 2025

In Sun Valley, United States, the average temperature in February hovers around 5°C (41°F), with a minimum dipping as low as -13°C (9°F) and peaking at 20°C (68°F). Expect about 80 mm (3.1 in) of precipitation spread across 6 days, contributing to an average humidity of 83%.

February Temperature in Sun Valley

In February in Sun Valley, the average temperature is 5°C (41°F). Maximums can reach 20°C (68°F), while minimums can dip as low as -13°C (9°F). Be prepared for a wide range of temperatures during your travels!

February Weather in Sun Valley: Daily Temperature Highs, Lows, and Averages

The chart illustrates February temperature patterns in Sun Valley, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sun Valley, February typically has an average temperature of 5°C (41°F), with highs reaching up to 20°C (68°F) and lows dropping to around -13°C (9°F).
JanFebMarAprMayJunJulAugSepOctNovDec394146566375767570584941
Data source: Temperature data for Sun Valley 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.

February Precipitation in Sun Valley

In Sun Valley in February, the precipitation amount is 80 mm (3.1 in) over a period of 6 days.

February Precipitation Trends in Sun Valley

The chart displays monthly precipitation patterns in Sun Valley, with values for each month alongside February’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how February’s conditions compare to those of other months. In Sun Valley, February typically receives around 80 mm (3.1 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec648065111771115036363252
Data source: Precipitation data for February generated using information from the Copernicus Climate Change Service.
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February Humidity in Sun Valley

In Sun Valley in February humidity is 83%. With an average temperature of 5°C (41°F), this humidity feels like a damp chill that seeps into your bones, making traveling uncomfortable and necessitating extra layers to stay warm and dry.

February Average Humidity in Sun Valley

This chart illustrates the average monthly humidity levels in Sun Valley, with February’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In February, average humidity in Sun Valley is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%83%72%63%46%35%33%41%59%70%79%82%
Data source: Humidity data for February generated using information from the Copernicus Climate Change Service.

February UV Index in Sun Valley

In Sun Valley in February, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Sun Valley.

Maximum UV Index Levels in Sun Valley for February

The chart shows the monthly maximum UV Index (UVI) for Sun Valley in February, 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 February, the maximum UV index in Sun Valley typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec479111213121111865
Data source: Sun Valley February 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 February Weather in Sun Valley Compares to Other Months

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

This table compares monthly weather conditions in Sun Valley, showing how February’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (40°F)64 mm (2.5 inches)80%moderate
February Weather5°C (41°F)80 mm (3.1 inches)83%high
March Weather8°C (47°F)64 mm (2.5 inches)72%very high
April Weather13°C (56°F)11 mm (0.4 inches)63%extreme
May Weather17°C (63°F)17 mm (0.7 inches)46%extreme
June Weather24°C (75°F)7 mm (0.3 inches)35%extreme
July Weather24°C (76°F)111 mm (4.4 inches)33%extreme
August Weather24°C (75°F)50 mm (1.9 inches)41%extreme
September Weather21°C (70°F)36 mm (1.4 inches)59%extreme
October Weather15°C (59°F)36 mm (1.4 inches)70%very high
November Weather10°C (50°F)32 mm (1.3 inches)79%high
December Weather5°C (41°F)51 mm (2.0 inches)82%moderate

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