Traverse City weather by month
Traverse City runs from about -3°C in January to 21°C in July, with August the wettest month at 102 mm.
warmest month
July
21°C
coolest month
January
-3°C
wettest month
August
102 mm
worst air month
July
12 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | -3°C | 63 mm | 51 h | 4 |
| February | 0°C | 24 mm | 193 h | 6 |
| March | 2°C | 58 mm | 227 h | 7 |
| April | 8°C | 83 mm | 277 h | 5 |
| May | 14°C | 98 mm | 373 h | 5 |
| June | 19°C | 93 mm | 338 h | 5 |
| July | 21°C | 76 mm | 388 h | 12 |
| August | 20°C | 102 mm | 352 h | 10 |
| September | 19°C | 21 mm | 325 h | 6 |
| October | 13°C | 61 mm | 280 h | 4 |
| November | 6°C | 84 mm | 97 h | 3 |
| December | -1°C | 93 mm | 70 h | 2 |
About 2,971 hours of sun a year. Roughly 84 rainy days a year.
These are long-run climate normals, not a forecast. A given year can sit well outside them. PM2.5 is a global model: near the coast it counts sea salt as fine particulate and reads high against ground stations, sometimes by a factor of two. Use the shape of the year, not the absolute number.
where these numbers come from
- · Temperature, rainfall and sunshine: ECMWF ERA5 reanalysis climate normals via Open-Meteo (CC BY 4.0), fetched once and stored.
- · PM2.5: Copernicus CAMS reanalysis, monthly means. Modelled, not station readings; near coasts CAMS counts sea salt as PM2.5 and reads high.
Last reviewed 2026-05-27. Full method, licences and the list of sources we rejected are on the methodology page.