St. Johns, MI
Climate overview — based on NOAA 1991-2020 normals from SAINT JOHNS, MI US.
Year-round temperatures (°F)
Climate summary
St. Johns has an annual average temperature of 49.1°F with about 34 inches of precipitation per year. The warmest month is July (average high 83.2°F), and the coldest is January (average low 17.7°F). May is typically the wettest month (3.83 in) and February the driest (1.80 in).
Best time to visit St. Johns
Full guide →Climate change signal
All-time records →3 of 366 (0.8%) of St. Johns'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.
| 1890s | 44 | |
| 1900s | 23 | |
| 1930s | 13 | |
| 1940s | 46 | |
| 1950s | 41 | |
| 1960s | 29 | |
| 1970s | 37 | |
| 1980s | 47 | |
| 1990s | 28 | |
| 2000s | 27 | |
| 2010s | 31 | |
| 2020s | 0 |
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 | 30.6°F | 17.7°F | 24.2°F | 2.07 in | — | 13 |
| February | 33.0°F | 18.6°F | 25.8°F | 1.80 in | — | 10 |
| March | 43.7°F | 26.1°F | 34.9°F | 1.93 in | — | 10 |
| April | 56.9°F | 36.4°F | 46.6°F | 3.58 in | — | 12 |
| May | 69.3°F | 48.2°F | 58.8°F | 3.83 in | — | 12 |
| June | 78.9°F | 58.7°F | 68.8°F | 3.35 in | — | 10 |
| July | 83.2°F | 62.3°F | 72.8°F | 3.20 in | — | 9 |
| August | 81.3°F | 60.7°F | 71.0°F | 3.46 in | — | 10 |
| September | 74.8°F | 53.1°F | 63.9°F | 2.87 in | — | 10 |
| October | 61.7°F | 42.6°F | 52.2°F | 3.25 in | — | 11 |
| November | 47.3°F | 32.8°F | 40.0°F | 2.84 in | — | 11 |
| December | 36.0°F | 24.1°F | 30.0°F | 1.82 in | — | 11 |
Climate twins of St. Johns
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).