
Shawnee National Forest
- Annual mean
- 13.6 °C
- Warmest month
- July
- Wettest month
- April
A detailed 12-month analysis of climate averages based on representative coordinate measurements.
Lusk Creek Wilderness in Illinois presents a distinct annual climate rhythm captured through 1991 to 2020 monthly averages. This analysis details temperature, precipitation, humidity, wind speed, and daylight hours measured at a representative park coordinate. Users can examine how atmospheric conditions fluctuate throughout the year without conflating these long-term climate normals with current daily weather patterns or localized topographical variations.
Long-term thermal progression and average daily precipitation cycles across twelve months of recorded data
Analyze average temperature bounds, daily precipitation rates, humidity, wind speed, and daylight hours across the annual cycle.
| Mean temperature | Precipitation | Humidity | Wind speed | Daylight | |
|---|---|---|---|---|---|
| January | 0.2 °C-14.7° to 16.8° | 2.8 mm/day | 84% | 4.2 m/s | 9.7 hours |
| February | 2.5 °C-11.4° to 18.8° | 3 mm/day | 82.3% | 4.2 m/s | 10.6 hours |
| March | 7.7 °C-7.2° to 23° | 3.6 mm/day | 80.2% | 4.3 m/s | 11.8 hours |
| April | 13.8 °C-1.3° to 26.3° | 4.3 mm/day | 78.2% | 4.2 m/s | 13 hours |
| May | 19.1 °C5.2° to 29.4° | 4.1 mm/day | 79.9% | 3.4 m/s | 14 hours |
| June | 23.6 °C11.6° to 32.9° | 3.7 mm/day | 78.7% | 2.8 m/s | 14.6 hours |
| July | 25.7 °C15.2° to 35° | 3.3 mm/day | 75.7% | 2.5 m/s | 14.3 hours |
| August | 25.4 °C14.3° to 36.1° | 2.5 mm/day | 69.7% | 2.5 m/s | 13.4 hours |
| September | 21.5 °C7.6° to 34.2° | 2.7 mm/day | 67.1% | 2.9 m/s | 12.2 hours |
| October | 14.6 °C-0.3° to 29.7° | 3 mm/day | 70% | 3.4 m/s | 11 hours |
| November | 7.4 °C-5.9° to 23.1° | 3.5 mm/day | 76.8% | 3.7 m/s | 10 hours |
| December | 2.2 °C-10.8° to 18.4° | 3 mm/day | 83.5% | 3.8 m/s | 9.5 hours |
See two months side by side and how much they differ. Both use the same 1991–2020 climate normals and NASA POWER data point as the table above, so they show typical conditions, not a forecast.
Comparative monthly averages derived from long-term climatology records for temperature, wind, and humidity
Interactive climate map
Open the climate map to compare monthly temperature, precipitation, and other averages.
Examine monthly temperature, precipitation, and atmospheric patterns across diverse regional settings.





Delve into the protected natural landscapes of Lusk Creek Wilderness through a comprehensive geographic lens. This MoriAtlas destination provides clear insight into the sandstone canyons, forest cover, and terrain features that define this significant Illinois wilderness area for researchers and cartographic enthusiasts alike.