St. Ignace, MI
Climate overview — based on NOAA 1991-2020 normals from ST IGNACE, MI US.
Year-round temperatures (°F)
Climate summary
St. Ignace has an annual average temperature of 42.5°F with about 33.4 inches of precipitation per year. The warmest month is July (average high 75.5°F), and the coldest is February (average low 10.0°F). October is typically the wettest month (4.31 in) and February the driest (1.47 in).
Best time to visit St. Ignace
Full guide →Climate change signal
All-time records →239 of 366 (65.3%) of St. Ignace's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.
| 2000s | 1 | |
| 2010s | 305 | |
| 2020s | 60 |
Bars: number of all-time daily heat records still standing that were set in each decade.
Monthly averages
| Month | Avg High | Avg Low | Avg Temp | Precipitation | Snow | Rainy days |
|---|---|---|---|---|---|---|
| January | 24.6°F | 11.1°F | 17.9°F | 2.09 in | — | — |
| February | 25.9°F | 10.0°F | 18.0°F | 1.47 in | — | — |
| March | 35.0°F | 18.1°F | 26.6°F | 1.86 in | — | — |
| April | 46.8°F | 29.4°F | 38.1°F | 3.01 in | — | — |
| May | 59.0°F | 39.9°F | 49.5°F | 2.56 in | — | — |
| June | 70.2°F | 50.8°F | 60.5°F | 3.26 in | — | — |
| July | 75.5°F | 57.1°F | 66.3°F | 2.98 in | — | — |
| August | 74.8°F | 56.2°F | 65.5°F | 3.11 in | — | — |
| September | 67.8°F | 49.5°F | 58.7°F | 3.68 in | — | — |
| October | 55.0°F | 39.1°F | 47.1°F | 4.31 in | — | — |
| November | 41.7°F | 29.5°F | 35.6°F | 2.74 in | — | — |
| December | 31.7°F | 19.9°F | 25.8°F | 2.31 in | — | — |
Climate twins of St. Ignace
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).