Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Fourth of July

PERIOD OF RECORD: 155 YEARS (1871 - 2025)

The highest temperature recorded on the Fourth of July is 99F degrees in 1897. The lowest the mercury has fallen to on the Fourth of July is 47F in 1986. The high temperature averages 82F degrees and the low 61F degrees on the Fourth of July.

In 2018, as part of six straight days in the 90s, Rochester reached 96F degrees on the Fourth of July, the warmest day in this stretch of blistering heat which ended July 5th.

Temperature (F) Data

Highest	99	1897
Lowest	47	1986
Highest Minimum	77	1911
Lowest Maximum	62	1882
Average High	82
Average Low	61

HIGH TEMPERATURE (F) BY 10 DEGREE RANGES

(since 1940; 86 years)

	60s	70s	80s	90s
Number of occurrences	6	29	40	11
Percentage	7%	34%	47%	13%

Precipitation Data

(since 1940; 86 years)

Number of times 0.01" or greater:	29
Number of times 0.10" or greater:	17
Number of times 0.50" or greater:	4

Precipitation Records

Greatest Precipitation

2.61"

1998

Almanac Data for Recent Fourth of July's

Year	High	Low	Precip
1980	84	57	0.00
1981	83	68	0.00
1982	74	52	0.00
1983	92	71	0.04
1984	74	68	0.40

1985	85	58	0.00
1986	77	47	0.00
1987	78	63	0.00
1988	88	52	0.00
1989	80	70	0.01

1990	92	70	0.59
1991	82	66	0.24
1992	76	62	0.06
1993	85	58	0.00
1994	88	50	0.00

1995	85	56	0.00
1996	74	56	0.05
1997	66	54	0.12
1998	69	62	2.61
1999	91	74	T

2000	79	62	0.00
2001	78	61	T
2002	89	70	0.00
2003	90	67	0.00
2004	85	61	0.38

2005	88	66	0.03
2006	82	65	0.48
2007	68	58	0.19
2008	76	52	0.00
2009	70	51	0.00

2010	87	61	0.00
2011	84	59	0.00
2012	93	66	0.00
2013	86	70	0.07
2014	73	58	T

2015	77	60	0.00
2016	87	55	0.00
2017	79	57	0.00
2018	96	61	0.00
2019	90	65	0.02

2020	85	63	0.15
2021	75	59	0.02
2022	82	54	0.00
2023	86	61	0.00
2024	86	73	0.01

2025	78	54	0.00
2026
2027
2028
2029