nomadseason

March Weather in Collinsville, United States

Last updated: June 24, 2025

In March, the average temperature in Collinsville, United States hovers around 16°C (60°F), offering a mild climate. However, be prepared for fluctuations, as temperatures can dip to a chilly -4°C (25°F) or soar to a warm 31°C (88°F). Expect 117 mm (4.6 in) of precipitation spread over approximately 12 days, contributing to an average humidity level of 82%. 🌧️

March Temperature in Collinsville

In March, in Collinsville, the average temperature is 16°C (60°F). The maximum can reach 31°C (88°F), while the minimum can drop as low as -4°C (25°F). Travelers should be prepared for a wide range of temperatures during this month.

March Weather in Collinsville: Daily Temperature Highs, Lows, and Averages

The chart illustrates March temperature patterns in Collinsville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Collinsville, March typically has an average temperature of 16°C (60°F), with highs reaching up to 31°C (88°F) and lows dropping to around -4°C (25°F).
JanFebMarAprMayJunJulAugSepOctNovDec485460647379818178695551
Data source: Temperature data for Collinsville generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

March Precipitation in Collinsville

In Collinsville in March, the total precipitation amount is 117 mm (4.6 in), occurring over a span of 12 days.

March Precipitation Trends in Collinsville

The chart displays monthly precipitation patterns in Collinsville, with values for each month alongside March’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how March’s conditions compare to those of other months. In Collinsville, March typically receives around 117 mm (4.6 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec1041481171341141671171289810768123
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

March Humidity in Collinsville

In Collinsville in March humidity is 82%. With an average temperature of 16°C (60°F), this humidity feels like walking through a warm, thick blanket that clings to your skin, making every step feel heavier and travel more exhausting.

March Average Humidity in Collinsville

This chart illustrates the average monthly humidity levels in Collinsville, with March’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In March, average humidity in Collinsville is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%84%82%82%82%79%82%77%74%73%85%88%
Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in Collinsville

In Collinsville in March, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Collinsville.

Maximum UV Index Levels in Collinsville for March

The chart shows the monthly maximum UV Index (UVI) for Collinsville in March, 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 March, the maximum UV index in Collinsville typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec478111111111110864
Data source: Collinsville March 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 March Weather in Collinsville Compares to Other Months

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

This table compares monthly weather conditions in Collinsville, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather9°C (48°F)104 mm (4.1 inches)85%moderate
February Weather12°C (54°F)148 mm (5.8 inches)84%high
March Weather16°C (60°F)117 mm (4.6 inches)82%very high
April Weather18°C (65°F)133 mm (5.3 inches)82%extreme
May Weather23°C (74°F)114 mm (4.5 inches)82%extreme
June Weather26°C (79°F)167 mm (6.6 inches)79%extreme
July Weather27°C (81°F)117 mm (4.6 inches)82%extreme
August Weather27°C (81°F)128 mm (5.1 inches)77%extreme
September Weather25°C (78°F)98 mm (3.8 inches)74%very high
October Weather20°C (69°F)107 mm (4.2 inches)73%very high
November Weather13°C (55°F)68 mm (2.7 inches)85%high
December Weather11°C (52°F)123 mm (4.8 inches)88%moderate

Compare Collinsville's Climate with Cities Worldwide