Lock Haven Threshold Days by Year (USC00365104)

19 fixed thresholds counted per year at Lock Haven (USC00365104): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Lock Haven Thresholds

Lock Haven: days with 10 mm (0.39 in) or more of precipitation in 72 years, most in 1945 with 46.
Lock Haven: days with 25 mm (0.98 in) or more of precipitation in 72 years, most in 1894 with 15.
Lock Haven: days with a maximum temperature at or above 30 C (86 F) in 66 years, most in 1932 with 88.
Lock Haven: days with a maximum temperature at or above 90 F (32.2 C) in 66 years, most in 1930 with 55.
19 fixed thresholds have at least one qualifying day at Lock Haven.

Days at or above 30 C (86 F)

66 years with a qualifying day

Days per year at Lock Haven with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 88 in 1932.

Days at or above 30 C (86 F) per year at Lock Haven
Year	Days	Decade average
1894	74	70
1895	86	70
1896	60	70
1897	55	70
1898	73	70
1899	72	70
1901	63	52.1
1902	53	52.1
1903	39	52.1
1904	51	52.1
1905	44	52.1
1906	56	52.1
1907	34	52.1
1908	67	52.1
1909	62	52.1
1910	58	54.7
1911	64	54.7
1912	51	54.7
1913	61	54.7
1914	68	54.7
1916	60	54.7
1917	35	54.7
1918	48	54.7
1919	47	54.7
1920	28	46.5
1927	43	46.5
1928	52	46.5
1929	63	46.5
1930	85	67.7
1931	74	67.7
1932	88	67.7
1933	63	67.7
1934	56	67.7
1935	50	67.7
1937	57	67.7
1938	62	67.7
1939	74	67.7
1940	40	55.6
1941	57	55.6
1942	43	55.6
1943	67	55.6
1944	62	55.6
1945	53	55.6
1946	46	55.6
1947	53	55.6
1949	79	55.6
1950	29	51.3
1951	57	51.3
1952	57	51.3
1953	55	51.3
1954	48	51.3
1955	62	51.3
1956	37	51.3
1957	54	51.3
1958	36	51.3
1959	78	51.3
1960	31	39.2
1961	44	39.2
1962	45	39.2
1963	34	39.2
1964	48	39.2
1965	43	39.2
1966	56	39.2
1967	19	39.2
1968	37	39.2
1969	35	39.2

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

First to last qualifying date each year at Lock Haven
Year	First date	Last date
1894	1894-05-01	1894-10-01
1895	1895-04-25	1895-09-23
1896	1896-04-15	1896-09-14
1897	1897-04-24	1897-10-16
1898	1898-05-20	1898-09-30
1899	1899-04-24	1899-09-03
1901	1901-04-29	1901-09-29
1902	1902-04-22	1902-09-08
1903	1903-04-29	1903-09-16
1904	1904-05-06	1904-10-10
1905	1905-05-03	1905-10-01
1906	1906-05-18	1906-09-19
1907	1907-05-14	1907-09-16
1908	1908-04-26	1908-09-26
1909	1909-04-17	1909-09-23
1910	1910-05-01	1910-10-06
1911	1911-05-11	1911-09-17
1912	1912-05-20	1912-09-15
1913	1913-04-24	1913-09-08
1914	1914-05-19	1914-10-10
1916	1916-05-08	1916-09-27
1917	1917-05-19	1917-09-01
1918	1918-05-06	1918-08-27
1919	1919-04-07	1919-09-21
1920	1920-05-27	1920-09-26
1927	1927-04-20	1927-10-02
1928	1928-04-05	1928-09-16
1929	1929-04-06	1929-09-09
1930	1930-05-01	1930-09-27
1931	1931-05-16	1931-09-23
1932	1932-05-07	1932-09-23
1933	1933-05-19	1933-09-26
1934	1934-05-05	1934-09-04
1935	1935-04-27	1935-08-26
1937	1937-05-22	1937-09-04
1938	1938-04-27	1938-09-05
1939	1939-04-25	1939-10-10
1940	1940-05-13	1940-09-21
1941	1941-04-15	1941-10-08
1942	1942-04-26	1942-09-20
1943	1943-05-07	1943-09-28
1944	1944-05-02	1944-09-21
1945	1945-04-12	1945-09-28
1946	1946-04-22	1946-10-07
1947	1947-05-23	1947-10-21
1949	1949-05-04	1949-10-12
1950	1950-05-05	1950-08-29
1951	1951-05-15	1951-10-05
1952	1952-04-22	1952-09-14
1953	1953-05-10	1953-09-30
1954	1954-04-20	1954-10-12
1955	1955-04-20	1955-09-18
1956	1956-04-28	1956-09-04
1957	1957-04-24	1957-09-22
1958	1958-04-18	1958-09-26
1959	1959-05-06	1959-10-07
1960	1960-04-24	1960-09-10
1961	1961-06-03	1961-09-26
1962	1962-04-27	1962-09-14
1963	1963-05-09	1963-10-08
1964	1964-05-08	1964-09-19
1965	1965-05-04	1965-09-24
1966	1966-06-05	1966-09-03
1967	1967-06-03	1967-08-05
1968	1968-06-06	1968-09-23
1969	1969-04-28	1969-09-02

Every Fixed Threshold

Fixed thresholds at Lock Haven
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	66	88	1932	35
35 C (95 F): Days	57	24	1933	1
40 C (104 F): Days	5	2	1918	1
90 F (32.2 C): Days	66	55	1930	13
100 F (37.8 C): Days	23	10	1933	2
0 C (32 F): Ice days (max	66	59	1904	30
0 C (32 F): Frost days (min	64	164	1969	164
-10 C (14 F): Days with min	64	55	1963	33
-20 C (-4 F): Days with min	41	12	1904	2
-30 C (-22 F): Days with min	1	1	1912	1
20 C (68 F): Tropical nights (min	63	23	1947	4
25 C (77 F): Days with min	3	1	1896	1
10 mm (0.39 in): Days with 10 mm or more rain	72	46	1945	32
25 mm (0.98 in): Days with 25 mm or more rain	72	15	1894	2
50 mm (1.97 in): Days with 50 mm or more rain	47	4	1955	1
100 mm (3.94 in): Days with 100 mm or more rain	4	1	1933	1
10 cm (3.9 in): Days with 10 cm or more snowfall	61	9	1908	4
25 cm (9.8 in): Days with 25 cm or more snowfall	21	2	1902	1
50 cm (19.7 in): Days with 50 cm or more snowfall	1	1	1953	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1894.

Download the Data

Data for Lock Haven 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).

Lock Haven Threshold Days by Year (USC00365104)

Key Facts for Lock Haven Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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