Salt Lake City weather by month
Salt Lake City runs from about 0°C in January to 28°C in July, with February the wettest month at 133 mm.
warmest month
July
28°C
coolest month
January
0°C
wettest month
February
133 mm
worst air month
January
17 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 0°C | 103 mm | 178 h | 17 |
| February | 2°C | 133 mm | 215 h | 13 |
| March | 4°C | 108 mm | 270 h | 15 |
| April | 10°C | 38 mm | 342 h | 12 |
| May | 13°C | 29 mm | 390 h | 12 |
| June | 24°C | 4 mm | 419 h | 10 |
| July | 28°C | 1 mm | 440 h | 8 |
| August | 26°C | 9 mm | 386 h | 10 |
| September | 21°C | 12 mm | 354 h | 10 |
| October | 15°C | 29 mm | 290 h | 12 |
| November | 3°C | 58 mm | 231 h | 15 |
| December | 1°C | 62 mm | 208 h | 11 |
About 3,723 hours of sun a year. Roughly 58 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 2026-05-23. Full method, licences and the list of sources we rejected are on the methodology page.