February Weather in Saint Peters, United States

Last updated: June 24, 2025

In February, the average temperature in Saint Peters, United States hovers around 2°C (35°F), with fluctuations ranging from a chilly -19°C (-3°F) to a warm 25°C (77°F). Expect about 78 mm (3.1 in) of precipitation over 9 days, accompanied by a relatively high humidity level of 80%.

February Temperature in Saint Peters

In February in Saint Peters, the average temperature is 2°C (35°F). The maximum can reach 25°C (77°F) and the minimum can be as low as -19°C (-3°F). Be prepared for a wide range of temperatures if you plan to travel during this time.

February Weather in Saint Peters: Daily Temperature Highs, Lows, and Averages

The chart illustrates February temperature patterns in Saint Peters, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint Peters, February typically has an average temperature of 2°C (35°F), with highs reaching up to 25°C (77°F) and lows dropping to around -19°C (-3°F).

Data source: Temperature data for Saint Peters generated using information from the Copernicus Climate Change Service.

February Precipitation in Saint Peters

In Saint Peters in February, the precipitation amount is 78 mm (3.1 in) over the course of 9 days.

February Precipitation Trends in Saint Peters

The chart displays monthly precipitation patterns in Saint Peters, 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 Saint Peters, February typically receives around 78 mm (3.1 inches) of precipitation spread over approximately 9 days.

Data source: Precipitation data for February generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

February Humidity in Saint Peters

In Saint Peters in February humidity is 80%. With an average temperature of 2°C (35°F), this humidity feels like a heavy, damp chill that clings to your skin, making outdoor excursions uncomfortable and your clothes feel soggy, while constantly reminding you to seek shelter indoors to escape the oppressive moisture in the air.

February Average Humidity in Saint Peters

This chart illustrates the average monthly humidity levels in Saint Peters, 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 Saint Peters is approximately 80%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for February generated using information from the Copernicus Climate Change Service.

February UV Index in Saint Peters

In Saint Peters in February, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Saint Peters.

Maximum UV Index Levels in Saint Peters for February

The chart shows the monthly maximum UV Index (UVI) for Saint Peters 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 Saint Peters typically reaches 5, which falls under the moderate exposure category.

Data source: Saint Peters 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 Saint Peters Compares to Other Months

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

This table compares monthly weather conditions in Saint Peters, showing how February’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	0°C (32°F)	72 mm (2.9 inches)	82%	moderate
February Weather	2°C (35°F)	78 mm (3.1 inches)	80%	moderate
March Weather	8°C (47°F)	128 mm (5.0 inches)	80%	high
April Weather	13°C (55°F)	121 mm (4.8 inches)	80%	very high
May Weather	19°C (67°F)	145 mm (5.7 inches)	82%	very high
June Weather	25°C (76°F)	84 mm (3.3 inches)	83%	extreme
July Weather	26°C (80°F)	97 mm (3.8 inches)	81%	extreme
August Weather	24°C (76°F)	139 mm (5.5 inches)	80%	very high
September Weather	22°C (72°F)	56 mm (2.2 inches)	76%	very high
October Weather	15°C (59°F)	110 mm (4.3 inches)	76%	high
November Weather	7°C (44°F)	68 mm (2.7 inches)	85%	moderate
December Weather	4°C (39°F)	52 mm (2.1 inches)	86%	moderate