Weather in Tri-Cities, Washington, United States in October
In an average October, Tri-Cities sees a daily high around 65°F and a low around 44°F, based on 1981–2026 of local climate records.
| Average high | 65°F |
|---|---|
| Typical high range | 57°F to 74°F |
| Average low | 44°F |
| Typical low range | 37°F to 51°F |
| Average daily precipitation | 0.00 in |
October records
The most extreme October on record for each metric, across 1981–2026. For rainfall, the wettest and driest are by total October accumulation.
High
Highest
87°F
2014-10-06
Lowest
37°F
1991-10-28
Low
Highest
61°F
2022-10-02
Lowest
20°F
2019-10-29
Feels-like
Highest
90°F
2003-10-21
Lowest
5°F
2019-10-29
Humidity
Highest
11.9 g/m³
2015-10-10
Lowest
1.5 g/m³
2002-10-30
Wind
Highest
33 mph
1997-10-30
Lowest
4 mph
2012-10-07
Precip
Wettest
2.77 in
2016
Driest
0.06 in
1987
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