Tri-Cities weather records
Record high and low temperatures for Tri-Cities, by month, by season, and all-time, with the dates they occurred, across 1980–2026 of daily climate history. Its hottest day on record reached 118°F on 2021-06-30; its coldest fell to -13°F on 1985-11-24.
Records by month
The warmest (▲) and coldest (▼) both the daytime high and the overnight low have ever been in each calendar month, so each column shows its record high and its record low. Tap a month for its full averages and typical range.
| Month | Daytime high | Overnight low |
|---|---|---|
| January | 67°F2020-01-31
3°F1996-01-31
|
53°F2009-01-07
-11°F1996-01-30
|
| February | 69°F1986-02-24
2°F1996-02-01
|
56°F1986-02-24
-12°F1996-02-03
|
| March | 83°F2015-03-28
24°F1993-03-01
|
60°F2003-03-31
2°F2019-03-05
|
| April | 97°F1987-04-28
47°F2022-04-13
|
67°F1987-04-28
29°F2008-04-21
|
| May | 107°F1986-05-31
58°F2010-05-05
|
74°F1986-05-31
34°F2013-05-01
|
| June | 118°F2021-06-30
63°F2008-06-06
|
84°F2015-06-29
43°F1999-06-09
|
| July | 114°F2006-07-24
71°F1981-07-07
|
82°F2002-07-13
45°F1981-07-08
|
| August | 112°F2022-08-01
68°F1992-08-23
|
83°F1992-08-13
47°F1995-08-18
|
| September | 105°F2022-09-03
50°F2019-09-29
|
73°F2019-09-06
33°F1985-09-29
|
| October | 93°F2014-10-07
38°F1991-10-31
|
63°F1988-10-16
17°F2019-10-30
|
| November | 76°F2006-11-06
1°F1985-11-24
|
63°F2006-11-07
-13°F1985-11-24
|
| December | 69°F2025-12-15
9°F1990-12-22
|
60°F2025-12-11
-7°F1985-12-01
|
Records by season
The warmest (▲) and coldest (▼) both the daytime high and the overnight low have reached in each meteorological season (Northern Hemisphere, each a three-month span).
| Season | Daytime high | Overnight low |
|---|---|---|
| Winter (Dec–Feb) | 69°F1986-02-24
2°F1996-02-01
|
60°F2025-12-11
-12°F1996-02-03
|
| Spring (Mar–May) | 107°F1986-05-31
24°F1993-03-01
|
74°F1986-05-31
2°F2019-03-05
|
| Summer (Jun–Aug) | 118°F2021-06-30
63°F2008-06-06
|
84°F2015-06-29
43°F1999-06-09
|
| Autumn (Sep–Nov) | 105°F2022-09-03
1°F1985-11-24
|
73°F2019-09-06
-13°F1985-11-24
|
All-time records
The most extreme value Tri-Cities has recorded for each metric across its entire history.
High
Low
Feels-like
Humidity
Wind
Gust
Precip
For rainfall, the “driest” figure is the longest run of consecutive days without measurable rain, dated to when that dry spell began.