Weather in Tri-Cities in May
In an average May, Tri-Cities sees a daily high around 79°F and a low around 52°F, based on 1980–2026 of local climate records.
| Average high | 79°F |
|---|---|
| Typical high range | 68°F to 92°F |
| Average low | 52°F |
| Typical low range | 43°F to 60°F |
| Average daily precipitation | 0.00 in |
May records
The most extreme May on record for each metric, across 1980–2026. For rainfall, the wettest and driest are by total May accumulation.
High
Highest
107°F
1986-05-31
Lowest
58°F
2010-05-05
Low
Highest
74°F
1986-05-31
Lowest
34°F
2013-05-01
Feels-like
Highest
126°F
1986-05-30
Lowest
24°F
1996-05-08
Humidity
Highest
14.7 g/m³
1997-05-31
Lowest
2.3 g/m³
2013-05-03
Wind
Highest
31 mph
2026-05-13
Lowest
4 mph
2025-05-02
Gust
Highest
52 mph
2010-05-03
Lowest
11 mph
1994-05-23
Precip
Wettest
2.05 in
1980
Driest
0.07 in
1992
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