February Weather in Boise City, United States

Last updated: June 24, 2025

In Boise City, United States, the average temperature in February hovers around 3°C (37°F), with extreme fluctuations where it can dip to a chilling -28°C (-19°F) or soar to a warm 32°C (89°F). Expect a modest precipitation of 11 mm (0.4 in) spread over just 2 days, and prepare for an average humidity level of 76%, ensuring a crisp, refreshing atmosphere.

February Temperature in Boise City

In February in Boise City, the average temperature is 3°C (37°F), with maximums reaching 32°C (89°F) and minimums dropping as low as -28°C (-19°F). It's advisable to prepare for a wide range of temperatures when traveling to Boise City during this time.

February Weather in Boise City: Daily Temperature Highs, Lows, and Averages

The chart illustrates February temperature patterns in Boise City, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Boise City, February typically has an average temperature of 3°C (37°F), with highs reaching up to 32°C (89°F) and lows dropping to around -28°C (-19°F).
JanFebMarAprMayJunJulAugSepOctNovDec363748556475797671564739
Data source: Temperature data for Boise City 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 Boise City

In Boise City in February, the precipitation amount is 11 mm (0.4 in) over the course of 2 days.

February Precipitation Trends in Boise City

The chart displays monthly precipitation patterns in Boise City, 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 Boise City, February typically receives around 11 mm (0.4 inches) of precipitation spread over approximately 2 days.
JanFebMarAprMayJunJulAugSepOctNovDec16113641603744553234715
Data source: Precipitation data for February generated using information from the Copernicus Climate Change Service.
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February Humidity in Boise City

In Boise City in February, humidity is 76%. With an average temperature of 3°C (37°F), this humidity feels like trudging through a cold, damp fog that envelops you, making travel feel heavy and uncomfortable.

February Average Humidity in Boise City

This chart illustrates the average monthly humidity levels in Boise City, 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 Boise City is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec73%76%64%61%71%75%75%80%80%78%76%78%
Data source: Humidity data for February generated using information from the Copernicus Climate Change Service.

February UV Index in Boise City

In Boise City in February, 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 Boise City, you can refer to this Hourly UV Index in Boise City.

Maximum UV Index Levels in Boise City for February

The chart shows the monthly maximum UV Index (UVI) for Boise City 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 Boise City typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468101112121110753
Data source: Boise City 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 Boise City Compares to Other Months

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

This table compares monthly weather conditions in Boise City, showing how February’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (36°F)16 mm (0.6 inches)73%moderate
February Weather3°C (37°F)11 mm (0.4 inches)76%high
March Weather9°C (49°F)36 mm (1.4 inches)64%very high
April Weather13°C (55°F)41 mm (1.6 inches)61%very high
May Weather18°C (64°F)60 mm (2.4 inches)71%extreme
June Weather24°C (76°F)37 mm (1.5 inches)75%extreme
July Weather26°C (79°F)44 mm (1.7 inches)75%extreme
August Weather25°C (77°F)55 mm (2.2 inches)80%extreme
September Weather22°C (71°F)32 mm (1.3 inches)80%very high
October Weather13°C (56°F)34 mm (1.3 inches)78%high
November Weather8°C (47°F)7 mm (0.3 inches)76%moderate
December Weather4°C (39°F)15 mm (0.6 inches)78%moderate

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