San Francisco Airport, CA: records

4 October 2026: The hottest day on record in San Francisco Airport, CA: 105°F on Wednesday 14 June 2000.

The record begins: 1945

All-time records

Hottest day: 105°F; 14 June 2000
Coldest night: 24°F; 9 December 1972
Wettest day: 5.59 in; 4 January 1982
Warmest night: 72°F; 2 September 2017
Coldest day: 37°F; 9 December 1972

Daily records by decade

New daily records set in San Francisco Airport, CA by decade since the 1970s: the most record highs, 102, came in the 1980s; the most record lows, 15, in the 1970s.

Record highs
Record lows

Every decade as a table

Decade	Record highs	Record lows	Years in the record
1940s	0	0	5
1950s	0	0	10
1960s	0	0	10
1970s	59	15	10
1980s	102	11	10
1990s	53	5	10
2000s	64	2	10
2010s	64	2	10
2020s	45	0	7

Records by month

Month	Highest	Lowest	Wettest day
January	74°F 18 January 2021, 17 January 2021, 31 January 2015	26°F 5 January 1949	5.59 in 4 January 1982
February	78°F 10 February 2022	30°F 1 February 1950, 14 February 1949	2.92 in 2 February 1998
March	89°F 20 March 2026	31°F 3 March 1966	1.99 in 8 March 1978
April	92°F 8 April 1989, 29 April 1981	36°F 27 April 1955	2.30 in 2 April 1958
May	97°F 27 May 1984	39°F 3 May 1950	1.53 in 20 May 1957
June	105°F 14 June 2000	43°F 1 June 1954	0.81 in 2 June 1967
July	99°F 1 July 1985	44°F 29 July 1951	0.35 in 2 July 1977
August	99°F 14 August 2020, 24 August 2010	45°F 30 August 1955, 3 August 1954, 30 August 1952	0.56 in 19 August 1997
September	104°F 2 September 2017, 1 September 2017	41°F 30 September 1950	2.29 in 18 September 1959
October	99°F 5 October 1987	37°F 20 October 1949	4.02 in 24 October 2021
November	85°F 2 November 1967, 1 November 1967	31°F 30 November 1954	2.55 in 22 November 2024
December	75°F 12 December 1958, 4 December 1958, 2 December 1958	24°F 9 December 1972	3.67 in 31 December 2022

Streaks, months and years

Longest heat streak	6 days	23 June to 28 June 1976	A high of 90°F or above
Wettest month	13.64 in	February 1998
Driest month	0.00 in	June 2025	and 49 more
Wettest year	38.34 in	1983
Driest year	3.38 in	2013

Every record in words

The coldest night on record in San Francisco Airport, CA: a low of 24°F on Saturday 9 December 1972.
The wettest day on record in San Francisco Airport, CA: 5.59 in on Monday 4 January 1982.
The warmest night on record in San Francisco Airport, CA: a low of 72°F on Saturday 2 September 2017.
The coldest day on record in San Francisco Airport, CA: a high of 37°F on Saturday 9 December 1972.
The longest run of days with a high of 90°F or above in San Francisco Airport, CA: 6 days, from Wednesday 23 June to Monday 28 June 1976.
The wettest month on record in San Francisco Airport, CA: February 1998, with 13.64 in of precipitation.
The driest month on record in San Francisco Airport, CA: June 2025, with 0.00 in of precipitation (shared with 49 other months).
The wettest year on record in San Francisco Airport, CA: 1983, with 38.34 in of precipitation.
The driest year on record in San Francisco Airport, CA: 2013, with 3.38 in of precipitation.

San Francisco Airport, CA the day's answers