Reno weather by month
Reno runs from about 2°C in February to 27°C in July, with March the wettest month at 91 mm.
warmest month
July
27°C
coolest month
February
2°C
wettest month
March
91 mm
worst air month
January
11 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 3°C | 45 mm | 199 h | 11 |
| February | 2°C | 77 mm | 219 h | 8 |
| March | 4°C | 91 mm | 297 h | 7 |
| April | 10°C | 12 mm | 358 h | 5 |
| May | 15°C | 13 mm | 422 h | 6 |
| June | 23°C | 2 mm | 417 h | 5 |
| July | 27°C | 5 mm | 425 h | 5 |
| August | 23°C | 5 mm | 404 h | 5 |
| September | 20°C | 5 mm | 349 h | 6 |
| October | 14°C | 13 mm | 317 h | 6 |
| November | 4°C | 48 mm | 248 h | 7 |
| December | 2°C | 49 mm | 218 h | 6 |
About 3,873 hours of sun a year. Roughly 38 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 2026-05-24. Full method, licences and the list of sources we rejected are on the methodology page.