Weather & Climate
East Saint Louis, Illinois, United States
Overview
Available climate summaries for East Saint Louis. Origins and reference periods are unverified; stored values may include AI estimates. Treat these as estimates until independently verified.
Key Metrics
Annual Avg
13.6°C
Summer Avg
N/A
Winter Avg
N/A
Record High
3.4°C
Record Low
-12.2°C
Annual Precipitation
1063 mm
Avg Humidity
89.3%
Summer Humidity
N/A
Winter Humidity
N/A
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 4.1° | — | -4.2° | 61 | 72% | — | — |
| Feb | 7.2° | — | -2.6° | 59 | 69% | — | — |
| Mar | 13.3° | — | 2.4° | 96 | 66% | — | — |
| Apr | 19.1° | — | 7.5° | 111 | 63% | — | — |
| May | 24.7° | — | 13.3° | 116 | 72% | — | — |
| Jun | 29.7° | — | 18.2° | 104 | 74% | — | — |
| Jul | 31.9° | — | 20.7° | 97 | 73% | — | — |
| Aug | 31° | — | 19.6° | 93 | 72% | — | — |
| Sep | 26.7° | — | 15° | 83 | 68% | — | — |
| Oct | 20.6° | — | 8.9° | 84 | 66% | — | — |
| Nov | 13.2° | — | 2.8° | 87 | 67% | — | — |
| Dec | 6° | — | -2.3° | 72 | 71% | — | — |
Data sources
Estimates and unverified origins
Oyster List climate data - Climate origins are unverified. Available methods include historical APIs and AI estimates; stored rows do not identify the original dataset, reference period, or model for each value. Treat these summaries as estimates until independently verified. Record updated 2026-01-15.