Rock River Canyon Wilderness
- Annual mean
- 5.4 °C
- Warmest month
- August
- Wettest month
- October
Atmospheric data profiles spanning 1991 to 2020 at a fixed representative coordinate.
Annual climatic patterns for McCormick Wilderness are defined through long-term representative-point averages. Data encompasses monthly temperature fluctuations, precipitation rates, relative humidity, wind speed, and daylight availability between 1991 and 2020. These metrics establish a baseline for understanding the year-round environmental profile rather than current meteorological conditions or short-term weather forecasts.

Long term thermal range and monthly precipitation timing across twelve representative coordinate records
Analyze long-term temperature ranges, average daily precipitation, humidity, wind speed, and daylight hours for Michigan protected terrain.
| Mean temperature | Precipitation | Humidity | Wind speed | Daylight | |
|---|---|---|---|---|---|
| January | -10.1 °C-23.1° to 0.5° | 1.5 mm/day | 97.6% | 3.7 m/s | 8.8 hours |
| February | -9.2 °C-22.6° to 1.9° | 1.3 mm/day | 96.8% | 3.8 m/s | 10.1 hours |
| March | -3.8 °C-18.8° to 11° | 1.6 mm/day | 89.5% | 3.4 m/s | 11.7 hours |
| April | 3 °C-8.5° to 20.6° | 2.4 mm/day | 77.7% | 3.1 m/s | 13.4 hours |
| May | 10 °C-2.4° to 25.7° | 2.9 mm/day | 75.8% | 2.6 m/s | 14.8 hours |
| June | 15.5 °C2.5° to 28.6° | 3.3 mm/day | 78.5% | 2.2 m/s | 15.6 hours |
| July | 18.3 °C7.4° to 30.2° | 3.1 mm/day | 78.5% | 2.2 m/s | 15.2 hours |
| August | 17.9 °C7.3° to 29.7° | 2.6 mm/day | 77.7% | 2.2 m/s | 13.9 hours |
| September | 13.8 °C1.7° to 27.9° | 3.1 mm/day | 78.4% | 2.5 m/s | 12.3 hours |
| October | 6.5 °C-3.7° to 22.3° | 3 mm/day | 81.5% | 2.8 m/s | 10.6 hours |
| November | -0.7 °C-11.8° to 11.8° | 2 mm/day | 86.6% | 3.1 m/s | 9.1 hours |
| December | -6.8 °C-20° to 3.2° | 1.7 mm/day | 94.9% | 3.3 m/s | 8.4 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.
Analyzing twelve long-term monthly normals for temperature, precipitation, humidity, wind, and daylight duration.
Interactive climate map
Open the climate map to compare monthly temperature, precipitation, and other averages.
Analyze monthly temperature, precipitation, and daylight rhythms across diverse geographic settings.





Examine the unique ecological character of McCormick Wilderness through our detailed geographic data. This protected area within Michigan offers a profound look at river hydrology and forest recovery. Use MoriAtlas to trace the boundaries and features of this significant U.S. wilderness site.