Cool
Average highs are around 6°C, so pack for cooler days.
February verdict
O'Fallon, Illinois, United States in February
Weather score35Poor
Poor for holiday weather
Average highs are around 6°C, so pack for cooler days. Sunshine averages 5.5h per day, enough for a balanced month. Rainfall averages 60mm, which is relatively low for holiday planning.
February weather
Monthly averages
Temp
6°C
Rain
60mm
Sun
5.5h
Weather score
35
Poor
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 60mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 5.5h per day, enough for a balanced month.
Map
Weather map
Compare O'Fallon, Illinois, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
February6°C average high
February has some of the coolest average daytime highs of the year, so pack for fresher conditions.
Warmest monthsMay to September
This stretch sets the upper range for average daytime heat.
Rain
February60mm average rain
February sits on the drier side of O'Fallon's year, which helps with sightseeing and transfers.
Driest monthsJanuary to February and October to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
February5.5 hours average sun
February is below O'Fallon's yearly sunshine average, so bright-day planning is less reliable than in peak months.
Brightest monthsMay to August
This stretch has the strongest sunshine in the monthly averages.
Weather score
February35 weather score
February is one of the weakest weather-score months, when the overall mix is less favourable than the rest of the year.
Best weather monthsJune to September
These months have the strongest weather score in the monthly averages.
