Weather in St. Louis

• All Year
• Autumn
• Winter
• Spring
• Summer

Yearly weather

Calculations are based on the last 8 years of historical weather data.

Temperatures #

• In St

• Louis, temperature extremes vary significantly throughout the year, with January experiencing the coldest temperatures (min 26.4°F, max 39.0°F) and July the hottest (min 70.8°F, max 88.1°F)

• Notably, temperatures rise sharply from spring into summer, peaking in July, while a gradual decline begins in the fall

• The sharp temperature variations reflect a humid subtropical climate, with mild winters and hot, humid summers.

Conditions #

• In St. Louis, there is a striking absence of recorded sun hours throughout the year, with sunlight consistently at zero across all months.

• Conversely, precipitation levels show moderate variation, with rainfall peaking at 0.2 inches in March, May, and August, while the lowest recorded is 0.1 inches in September.

• This indicates that while the city may not experience any sunlight, it does maintain a level of rainfall that could influence potential plant growth and water supply throughout the year.

Daylight Hours #

• In St. Louis, the earliest sunrise occurs in June at 5:37 AM, while the latest is at 7:15 AM in January, indicating significant variation depending on the time of year. The latest sunset is also in June at 8:26 PM, contrasting sharply with the earliest sunset in December at 4:41 PM.

• The shortest day, lasting only 9 hours and 30 minutes, takes place in December, whereas the longest day stretches to 14 hours and 48 minutes in June. This pattern reflects typical seasonal changes, with longer days in summer and shorter days in winter.