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Index, WA Climate
1991 to 2020 normals at Baring, 4.8 mi from the center of Index, elevation 770 ft.
Average weather by month
Select a month for daily normals and last year's weather
| Month | Range | High | Low | Precip. | Snow |
|---|---|---|---|---|---|
| January | 42° | 32° | 16.72 in | 13.8 in | |
| February | 47° | 32° | 10.60 in | 4.6 in | |
| March | 52° | 34° | 11.90 in | 3.8 in | |
| April | 59° | 38° | 8.35 in | 0.8 in | |
| May | 66° | 44° | 5.02 in | 0.0 in | |
| June | 69° | 48° | 3.96 in | 0.0 in | |
| July | 77° | 52° | 1.73 in | 0.0 in | |
| August | 77° | 52° | 1.90 in | 0.0 in | |
| September | 71° | 48° | 4.79 in | 0.0 in | |
| October | 58° | 42° | 12.30 in | 0.1 in | |
| November | 47° | 36° | 18.06 in | 4.2 in | |
| December | 41° | 32° | 14.56 in | 17.0 in | |
| Year | 59° | 109.89 in | 44.3 in |
Frequently asked questions
- What is the hottest month in Index, WA?
- August is the warmest month, with a normal high of 77°F at Baring.
- What is the coldest month in Index, WA?
- January is the coldest month, with a normal low of 32°F.
- What is the wettest month in Index, WA?
- November has the most precipitation on average, about 18.06 inches.