Flagstaff, AZ: records

4 October 2026: The hottest day on record in Flagstaff, AZ: 97°F on Thursday 5 July 1973.

The record begins: 1898

All-time records

Hottest day: 97°F; 5 July 1973
Coldest night: -30°F; 22 January 1937
Wettest day: 3.93 in; 19 February 1993
Warmest night: 68°F; 2 July 2002
Coldest day: 5°F; 12 January 1963

Daily records by decade

New daily records set in Flagstaff, AZ by decade since the 1920s: the most record highs, 145, came in the 1930s; the most record lows, 81, in the 1950s.

Record highs
Record lows

Every decade as a table

Decade	Record highs	Record lows	Years in the record
1890s	0	0	2
1900s	0	0	10
1910s	0	0	10
1920s	40	14	10
1930s	145	70	10
1940s	138	46	10
1950s	64	81	10
1960s	32	61	10
1970s	78	68	10
1980s	63	21	10
1990s	35	21	10
2000s	38	14	10
2010s	30	8	10
2020s	56	6	7

Records by month

Month	Highest	Lowest	Wettest day
January	66°F 30 January 1971	-30°F 22 January 1937	3.39 in 21 January 2010
February	71°F 26 February 1986	-23°F 1 February 1985	3.93 in 19 February 1993
March	84°F 19 March 2026	-16°F 4 March 1966	2.81 in 1 March 1970
April	80°F 28 April 1992, 7 April 1989	-2°F 2 April 1975	2.95 in 1 April 1903
May	89°F 31 May 2002	7°F 3 May 1915	1.11 in 24 May 1965
June	96°F 28 June 2013, 26 June 1970	22°F 2 June 1955, 2 June 1951	2.40 in 29 June 1956
July	97°F 5 July 1973	32°F 8 July 1955, 7 July 1955, 5 July 1955 and 2 more	2.55 in 15 July 1964
August	93°F 16 August 2020, 2 August 1902	24°F 23 August 1968	3.04 in 13 August 1986
September	91°F 6 September 2020, 3 September 1948, 2 September 1948 and 1 more	20°F 22 September 1912	2.84 in 5 September 1970
October	85°F 1 October 1980	-2°F 30 October 1971	2.42 in 24 October 1992
November	74°F 3 November 1977, 8 November 1973	-13°F 18 November 1958	3.21 in 11 November 1978
December	68°F 11 December 2025, 11 December 1950	-23°F 23 December 1990, 8 December 1978	3.33 in 29 December 2004

Streaks, months and years

Longest heat streak	11 days	21 June to 1 July 1990	A high of 90°F or above
Longest cold streak	11 days	24 January to 3 February 1979	A high of 32°F or below
Wettest month	10.05 in	February 1993
Driest month	0.00 in	December 2024	and 22 more
Wettest year	36.59 in	1965
Driest year	9.59 in	2020

Every record in words

The coldest night on record in Flagstaff, AZ: a low of -30°F on Friday 22 January 1937.
The wettest day on record in Flagstaff, AZ: 3.93 in on Friday 19 February 1993.
The warmest night on record in Flagstaff, AZ: a low of 68°F on Tuesday 2 July 2002.
The coldest day on record in Flagstaff, AZ: a high of 5°F on Saturday 12 January 1963.
The longest run of days with a high of 90°F or above in Flagstaff, AZ: 11 days, from Thursday 21 June to Sunday 1 July 1990.
The longest run of days with a high of 32°F or below in Flagstaff, AZ: 11 days, from Wednesday 24 January to Saturday 3 February 1979.
The wettest month on record in Flagstaff, AZ: February 1993, with 10.05 in of precipitation.
The driest month on record in Flagstaff, AZ: December 2024, with 0.00 in of precipitation (shared with 22 other months).
The wettest year on record in Flagstaff, AZ: 1965, with 36.59 in of precipitation.
The driest year on record in Flagstaff, AZ: 2020, with 9.59 in of precipitation.

Flagstaff, AZ the day's answers