Winchester Threshold Days by Year

18 fixed thresholds counted per year at Winchester (USC00119331): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Winchester Thresholds

Winchester: days with a maximum temperature at or above 30 C (86 F) in 20 years, most in 1901 with 104.
Winchester: days with a maximum temperature at or above 90 F (32.2 C) in 20 years, most in 1901 with 78.
Winchester: days with a maximum temperature at or below 0 C (32 F) in 20 years, most in 2010 with 44.
Winchester: nights with a minimum temperature at or below 0 C (32 F) in 20 years, most in 2007 with 133.
18 fixed thresholds have at least one qualifying day at Winchester.

Days at or above 30 C (86 F)

20 years with a qualifying day

Days per year at Winchester with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 104 in 1901.

Days at or above 30 C (86 F) per year at Winchester
Year	Days	Decade average
1899	69	69
1900	71	57.6
1901	104	57.6
1903	38	57.6
1904	25	57.6
1905	50	57.6
1999	63	63
2000	63	59.6
2001	67	59.6
2003	38	59.6
2004	41	59.6
2005	76	59.6
2006	83	59.6
2007	98	59.6
2008	42	59.6
2009	28	59.6
2010	77	73
2011	76	73
2012	82	73
2013	57	73

For each year, a bar from the first to the last day at Winchester meeting 30 C (86 F).

First to last qualifying date each year at Winchester
Year	First date	Last date
1899	1899-04-28	1899-10-15
1900	1900-05-13	1900-10-05
1901	1901-04-29	1901-10-01
1903	1903-05-16	1903-10-03
1904	1904-05-24	1904-09-28
1905	1905-05-10	1905-09-24
1999	1999-06-05	1999-09-27
2000	2000-05-09	2000-09-23
2001	2001-04-09	2001-09-14
2003	2003-04-16	2003-10-21
2004	2004-04-18	2004-09-20
2005	2005-05-11	2005-10-06
2006	2006-04-14	2006-10-05
2007	2007-04-30	2007-10-09
2008	2008-05-31	2008-09-03
2009	2009-04-25	2009-08-28
2010	2010-05-24	2010-10-10
2011	2011-04-04	2011-10-08
2012	2012-04-02	2012-09-08
2013	2013-05-01	2013-10-05

Every Fixed Threshold

Fixed thresholds at Winchester
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	20	104	1901	57
35 C (95 F): Days	18	45	1901	9
40 C (104 F): Days	4	9	1901	5
90 F (32.2 C): Days	20	78	1901	32
100 F (37.8 C): Days	8	23	1901	12
0 C (32 F): Ice days (max	20	44	2010	33
0 C (32 F): Frost days (min	20	133	2007	122
-10 C (14 F): Days with min	20	40	2008	34
-20 C (-4 F): Days with min	13	13	1905	6
-30 C (-22 F): Days with min	3	2	1999	2
20 C (68 F): Tropical nights (min	20	42	2010	23
25 C (77 F): Days with min	8	2	2005	2
10 mm (0.39 in): Days with 10 mm or more rain	17	42	2008	36
25 mm (0.98 in): Days with 25 mm or more rain	17	17	2009	15
50 mm (1.97 in): Days with 50 mm or more rain	13	6	2010	1
100 mm (3.94 in): Days with 100 mm or more rain	2	1	2008	1
10 cm (3.9 in): Days with 10 cm or more snowfall	8	3	2004	2
25 cm (9.8 in): Days with 25 cm or more snowfall	1	1	2006	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1899.

Download the Data

Data for Winchester threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-15 (15 October 2026). Threshold counts are computed by this site.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Winchester Threshold Days by Year

Key Facts for Winchester Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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