Walthill 1E Threshold Days by Year (USC00258935)

20 fixed thresholds counted per year at Walthill 1E (USC00258935): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Walthill 1E Thresholds

Walthill 1E: days with 10 mm (0.39 in) or more of precipitation in 91 years, most in 1998 with 34.
Walthill 1E: days with 25 mm (0.98 in) or more of precipitation in 91 years, most in 1915 with 14.
Walthill 1E: nights with a minimum temperature at or below 0 C (32 F) in 83 years, most in 2013 with 179.
Walthill 1E: nights with a minimum temperature at or below -10 C (14 F) in 83 years, most in 1950 with 79.
20 fixed thresholds have at least one qualifying day at Walthill 1E.

Days at or above 30 C (86 F)

77 years with a qualifying day

Days per year at Walthill 1E with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 89 in 2012.

Days at or above 30 C (86 F) per year at Walthill 1E
Year	Days	Decade average
1913	73	47.5
1914	56	47.5
1915	13	47.5
1916	63	47.5
1917	28	47.5
1919	52	47.5
1920	44	41.6
1921	58	41.6
1922	60	41.6
1923	25	41.6
1924	19	41.6
1925	50	41.6
1926	46	41.6
1927	46	41.6
1928	34	41.6
1929	34	41.6
1930	45	61.7
1931	70	61.7
1932	44	61.7
1933	72	61.7
1934	74	61.7
1935	52	61.7
1936	85	61.7
1937	60	61.7
1938	52	61.7
1939	63	61.7
1940	41	53.2
1941	47	53.2
1944	61	53.2
1945	43	53.2
1948	72	53.2
1949	55	53.2
1950	28	65.5
1951	39	65.5
1952	73	65.5
1953	81	65.5
1954	79	65.5
1955	86	65.5
1956	82	65.5
1957	55	65.5
1958	58	65.5
1959	74	65.5
1962	63	61
1963	76	61
1964	63	61
1965	49	61
1966	54	61
1970	73	65.8
1971	63	65.8
1972	68	65.8
1973	64	65.8
1979	61	65.8
1982	39	64.6
1983	79	64.6
1985	55	64.6
1988	84	64.6
1989	66	64.6
1994	57	59.2
1995	64	59.2
1996	36	59.2
1997	62	59.2
1998	77	59.2
2000	80	59
2003	58	59
2004	50	59
2005	70	59
2006	69	59
2007	72	59
2008	44	59
2009	29	59
2010	64	55.6
2011	53	55.6
2012	89	55.6
2013	49	55.6
2014	32	55.6
2015	44	55.6
2016	58	55.6

For each year, a bar from the first to the last day at Walthill 1E meeting 30 C (86 F).

First to last qualifying date each year at Walthill 1E
Year	First date	Last date
1913	1913-05-27	1913-09-07
1914	1914-05-23	1914-09-20
1915	1915-05-10	1915-08-06
1916	1916-05-05	1916-10-07
1917	1917-05-17	1917-08-26
1919	1919-06-12	1919-09-20
1920	1920-06-08	1920-09-25
1921	1921-04-03	1921-09-01
1922	1922-06-04	1922-10-04
1923	1923-06-01	1923-09-04
1924	1924-04-14	1924-08-30
1925	1925-04-22	1925-09-19
1926	1926-04-29	1926-09-17
1927	1927-04-26	1927-10-22
1928	1928-05-02	1928-10-10
1929	1929-04-04	1929-09-03
1930	1930-05-21	1930-10-10
1931	1931-04-08	1931-09-20
1932	1932-05-13	1932-10-02
1933	1933-05-18	1933-09-25
1934	1934-04-29	1934-09-19
1935	1935-06-14	1935-09-24
1936	1936-04-13	1936-09-22
1937	1937-05-20	1937-09-23
1938	1938-06-05	1938-10-04
1939	1939-04-23	1939-09-22
1940	1940-04-14	1940-09-21
1941	1941-05-14	1941-09-20
1944	1944-05-14	1944-09-20
1945	1945-05-06	1945-10-17
1948	1948-04-18	1948-09-19
1949	1949-04-25	1949-09-20
1950	1950-04-22	1950-10-30
1951	1951-05-30	1951-10-02
1952	1952-05-02	1952-09-30
1953	1953-05-24	1953-10-20
1954	1954-04-14	1954-09-28
1955	1955-04-19	1955-09-18
1956	1956-05-18	1956-10-12
1957	1957-06-06	1957-09-01
1958	1958-05-11	1958-10-15
1959	1959-05-01	1959-09-20
1962	1962-04-25	1962-10-11
1963	1963-05-08	1963-10-07
1964	1964-04-16	1964-09-10
1965	1965-04-29	1965-08-26
1966	1966-05-04	1966-08-31
1970	1970-05-18	1970-09-20
1971	1971-06-03	1971-10-01
1972	1972-04-06	1972-09-20
1973	1973-05-20	1973-10-14
1979	1979-05-17	1979-09-11
1982	1982-06-06	1982-09-11
1983	1983-05-24	1983-09-27
1985	1985-04-16	1985-09-19
1988	1988-04-07	1988-09-28
1989	1989-04-20	1989-10-12
1994	1994-04-17	1994-09-30
1995	1995-06-06	1995-10-12
1996	1996-04-11	1996-09-04
1997	1997-05-16	1997-10-06
1998	1998-05-18	1998-09-29
2000	2000-05-04	2000-10-13
2003	2003-04-01	2003-10-19
2004	2004-04-16	2004-09-20
2005	2005-05-24	2005-10-05
2006	2006-04-07	2006-10-08
2007	2007-04-30	2007-10-07
2008	2008-05-26	2008-09-27
2009	2009-04-24	2009-08-25
2010	2010-05-05	2010-10-09
2011	2011-05-09	2011-10-05
2012	2012-04-01	2012-09-20
2013	2013-05-15	2013-10-03
2014	2014-05-08	2014-09-20
2015	2015-03-17	2015-10-12
2016	2016-05-07	2016-09-24

Every Fixed Threshold

Fixed thresholds at Walthill 1E
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	77	89	2012	58
35 C (95 F): Days	74	45	1936	10
40 C (104 F): Days	12	19	1936	5
45 C (113 F): Days	1	1	1936	1
90 F (32.2 C): Days	77	68	1936	32
100 F (37.8 C): Days	40	30	1936	2
110 F (43.3 C): Days	1	2	1936	2
0 C (32 F): Ice days (max	77	76	1940	43
0 C (32 F): Frost days (min	83	179	2013	129
-10 C (14 F): Days with min	83	79	1950	41
-20 C (-4 F): Days with min	83	36	1936	7
-30 C (-22 F): Days with min	32	7	1936	2
20 C (68 F): Tropical nights (min	83	50	1936	23
25 C (77 F): Days with min	33	14	1936	2
10 mm (0.39 in): Days with 10 mm or more rain	91	34	1998	22
25 mm (0.98 in): Days with 25 mm or more rain	91	14	1915	8
50 mm (1.97 in): Days with 50 mm or more rain	62	4	1988	2
100 mm (3.94 in): Days with 100 mm or more rain	7	1	1920	1
10 cm (3.9 in): Days with 10 cm or more snowfall	59	7	1959	2
25 cm (9.8 in): Days with 25 cm or more snowfall	12	2	1983	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1913.

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Data for Walthill 1E 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 2026-10-17 (17 October 2026). Threshold counts are computed by this site.

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

Walthill 1E Threshold Days by Year (USC00258935)

Key Facts for Walthill 1E Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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