Weather Almanac: Saint Louis, MO 63102

🗓️ Historical norms for September

September avg. precipitation
🌧️ 3.40"
September days below freezing
📉 ≈0.0 days
Average September lows 56°F – 60°F
USDA Zone
7a
Annual extreme lows 0°F to 5°F
Last Spring Frost (36°F)
🌷 Apr 25
First Fall Frost (36°F)
🍂 Oct 7

Temperature climatic data from weather station: CAHOKIA (USC00111160)

Precipitation climatic data from weather station: CAHOKIA (USC00111160)

Agricultural climatic data from weather station: CAHOKIA (USC00111160)