Dayton weather averages
| Annual high temperature | 62ºF |
| Annual low temperature | 40ºF |
| Average annual precip. | 19.07 inch |
| Av. annual snowfall | 17 inch |
Station Data
Monthly averages Dayton
Longitude: -117.97, Latitude: 46.32
Average weather Dayton, WA - 99328
Monthly: 1991-2020 normals
History: 2007-2026
Abbreviations
Average precipitation in : Av. precipitation in
Jan: January, Feb: February, ...Jan: January, Feb: February, ...Ja: January, Fe: February, ...