Thunder Bay National Marine Sanctuary
- Annual mean
- 7 °C
- Warmest month
- August
- Wettest month
- August
Long-term atmospheric patterns including humidity, wind speed, and daylight hours recorded at representative coordinates.
Review the 1991 to 2020 climatology records for Huron–Manistee National Forests in Michigan. This profile provides data-driven insights into the annual rhythm of the area through monthly averages for minimum, mean, and maximum temperatures, as well as daily precipitation rates. Atmospheric variables such as relative humidity, wind speed, and average daylight hours are presented for each month to illustrate the established regional climate at a specific representative elevation of 265.66 meters.

Analyzing long-term average minimum, mean, and maximum temperatures alongside monthly precipitation rates
Analyze average temperature bounds, daily precipitation rates, humidity, wind, and calculated daylight across the calendar year.
| Mean temperature | Precipitation | Humidity | Wind speed | Daylight | |
|---|---|---|---|---|---|
| January | -6.9 °C-19.4° to 4.1° | 1.6 mm/day | 91.8% | 4.5 m/s | 9.1 hours |
| February | -6.3 °C-19.4° to 6° | 1.4 mm/day | 89.6% | 4.6 m/s | 10.2 hours |
| March | -1.2 °C-15.4° to 15° | 1.5 mm/day | 81.1% | 4.2 m/s | 11.7 hours |
| April | 4.9 °C-6.5° to 21.3° | 2.8 mm/day | 75.7% | 4 m/s | 13.3 hours |
| May | 11.3 °C-1.1° to 26° | 2.7 mm/day | 75.4% | 3.3 m/s | 14.6 hours |
| June | 16.9 °C4.6° to 29.4° | 2.8 mm/day | 76.6% | 2.8 m/s | 15.3 hours |
| July | 20.1 °C9.2° to 30.5° | 2.6 mm/day | 76.1% | 2.7 m/s | 15 hours |
| August | 19.6 °C9.5° to 30.4° | 2.7 mm/day | 76.4% | 2.8 m/s | 13.8 hours |
| September | 15.7 °C3.9° to 28.4° | 2.5 mm/day | 76.4% | 3.2 m/s | 12.3 hours |
| October | 8.9 °C-1.9° to 23.5° | 2.6 mm/day | 79.6% | 3.7 m/s | 10.7 hours |
| November | 2.3 °C-7.2° to 15.2° | 2 mm/day | 83.2% | 4 m/s | 9.3 hours |
| December | -3.3 °C-14.4° to 7.3° | 1.6 mm/day | 88.8% | 4.2 m/s | 8.7 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.
Comparing long-term monthly averages for temperature, precipitation, wind, and daylight duration
Interactive climate map
Open the climate map to compare monthly temperature, precipitation, and other averages.
Explore monthly temperature, precipitation, and regional atmospheric patterns across diverse protected landscapes





Deepen your understanding of the Huron–Manistee National Forests by examining the geographic boundaries and ecological features of these Michigan protected lands. MoriAtlas provides a clear view of the complex hydrology and forest patterns defining this essential Midwest wilderness area.