Seattle City, WA: records

4 October 2026: The hottest day on record in Seattle City, WA: 107°F on Monday 28 June 2021.

The record begins: 1894

All-time records

Hottest day: 107°F; 28 June 2021
Coldest night: 9°F; 21 December 1990
Wettest day: 4.22 in; 18 January 1986
Warmest night: 73°F; 28 June 2021
Coldest day: 18°F; 8 January 1909, 7 January 1909

Daily records by decade

New daily records set in Seattle City, WA by decade since the 1920s: the most record highs, 124, came in the 1930s; the most record lows, 43, in the 1920s.

Record highs
Record lows

Every decade as a table

Decade	Record highs	Record lows	Years in the record
1890s	0	0	6
1900s	0	0	10
1910s	0	0	10
1920s	83	43	10
1930s	124	31	10
1940s	109	15	10
1950s	70	34	10
1960s	67	11	10
1970s	35	17	10
1980s	34	18	10
1990s	29	14	10
2000s	29	29	10
2010s	38	10	10
2020s	30	8	7

Records by month

Month	Highest	Lowest	Wettest day
January	67°F 28 January 1931	11°F 14 January 1950, 15 January 1907	4.22 in 18 January 1986
February	74°F 29 February 1968	11°F 4 February 1989	2.63 in 8 February 1996
March	78°F 20 March 2019, 29 March 2004	20°F 12 March 1897	2.57 in 10 March 1903
April	89°F 18 April 2016	30°F 9 April 1920	2.20 in 23 April 1996
May	92°F 21 May 1963, 13 May 1934	35°F 7 May 2002, 6 May 2002, 1 May 1954	1.53 in 27 May 2006
June	107°F 28 June 2021	40°F 6 June 1924	1.42 in 3 June 1905
July	105°F 29 July 2009	44°F 4 July 1902	0.98 in 5 July 1897
August	97°F 16 August 2020, 9 August 1960, 8 August 1960	46°F 31 August 1908, 26 August 1908, 28 August 1899	1.58 in 22 August 2004
September	92°F 16 September 2025, 15 September 1967, 14 September 1937	36°F 25 September 1908, 21 September 1895	1.70 in 30 September 1953
October	88°F 16 October 2022	29°F 25 October 1919	3.59 in 20 October 2003
November	76°F 3 November 2010	13°F 23 November 1985, 15 November 1955	2.68 in 13 November 1937
December	65°F 10 December 2014, 15 December 1980, 4 December 1939	9°F 21 December 1990	4.15 in 3 December 2007

Streaks, months and years

Longest heat streak	6 days	26 July to 31 July 2022	A high of 90°F or above
Longest cold streak	10 days	21 January to 30 January 1969	A high of 32°F or below
Wettest month	15.33 in	December 1933
Driest month	0.00 in	August 2012	and 2 more
Wettest year	51.56 in	1996
Driest year	19.52 in	1952

Every record in words

The coldest night on record in Seattle City, WA: a low of 9°F on Friday 21 December 1990.
The wettest day on record in Seattle City, WA: 4.22 in on Saturday 18 January 1986.
The warmest night on record in Seattle City, WA: a low of 73°F on Monday 28 June 2021.
The coldest day on record in Seattle City, WA: a high of 18°F on Friday 8 January 1909 and Thursday 7 January 1909.
The longest run of days with a high of 90°F or above in Seattle City, WA: 6 days, from Tuesday 26 July to Sunday 31 July 2022.
The longest run of days with a high of 32°F or below in Seattle City, WA: 10 days, from Tuesday 21 January to Thursday 30 January 1969.
The wettest month on record in Seattle City, WA: December 1933, with 15.33 in of precipitation.
The driest month on record in Seattle City, WA: August 2012, with 0.00 in of precipitation (shared with 2 other months).
The wettest year on record in Seattle City, WA: 1996, with 51.56 in of precipitation.
The driest year on record in Seattle City, WA: 1952, with 19.52 in of precipitation.

Seattle City, WA the day's answers