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February Weather in Decatur, United States

Last updated: June 24, 2025

In Decatur, United States, the average temperature in February hovers around -5°C (24°F), with extremes ranging from a chilly -32°C (-26°F) to a surprisingly warm 20°C (69°F). During this month, you'll encounter an average precipitation of 54 mm (2.1 in) spread across 9 days, contributing to a generally high average humidity of 85%. Prepare for a mix of winter chills and the occasional thaw!

February Temperature in Decatur

In February in Decatur, the average temperature is -5°C (24°F). The maximum can reach 20°C (69°F), while the minimum can be as low as -32°C (-26°F). Travelers should be prepared for a wide range of temperatures and dress in layers to stay comfortable during their visit.

February Weather in Decatur: Daily Temperature Highs, Lows, and Averages

The chart illustrates February temperature patterns in Decatur, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Decatur, February typically has an average temperature of -5°C (24°F), with highs reaching up to 20°C (69°F) and lows dropping to around -32°C (-26°F).
JanFebMarAprMayJunJulAugSepOctNovDec222337476071757266523730
Data source: Temperature data for Decatur 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 Decatur

In Decatur in February, the precipitation amount is 54 mm (2.1 in) over a span of 9 days.

February Precipitation Trends in Decatur

The chart displays monthly precipitation patterns in Decatur, 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 Decatur, February typically receives around 54 mm (2.1 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec55545997136124781061181134349
Data source: Precipitation data for February generated using information from the Copernicus Climate Change Service.
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February Humidity in Decatur

In Decatur in February humidity is 85%. With an average temperature of -5°C (24°F), this humidity feels like a biting chill that penetrates your clothing, making every step outside feel more daunting and uninviting for traveling.

February Average Humidity in Decatur

This chart illustrates the average monthly humidity levels in Decatur, 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 Decatur is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%85%85%85%78%80%78%76%79%83%88%82%
Data source: Humidity data for February generated using information from the Copernicus Climate Change Service.

February UV Index in Decatur

In Decatur in February, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Decatur for better planning.

Maximum UV Index Levels in Decatur for February

The chart shows the monthly maximum UV Index (UVI) for Decatur 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 Decatur typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34689101098532
Data source: Decatur 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 Decatur Compares to Other Months

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

This table compares monthly weather conditions in Decatur, showing how February’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (22°F)55 mm (2.2 inches)85%moderate
February Weather-5°C (24°F)54 mm (2.1 inches)85%moderate
March Weather3°C (37°F)59 mm (2.3 inches)85%high
April Weather8°C (47°F)97 mm (3.8 inches)85%very high
May Weather16°C (60°F)136 mm (5.3 inches)78%very high
June Weather22°C (71°F)124 mm (4.9 inches)80%very high
July Weather24°C (75°F)78 mm (3.1 inches)78%very high
August Weather22°C (72°F)106 mm (4.2 inches)76%very high
September Weather19°C (66°F)118 mm (4.6 inches)79%very high
October Weather11°C (52°F)113 mm (4.5 inches)83%moderate
November Weather3°C (37°F)43 mm (1.7 inches)88%moderate
December Weather-1°C (30°F)49 mm (1.9 inches)81%low

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