Glencliff Threshold Days by Year (USC00273409)

15 fixed thresholds counted per year at Glencliff (USC00273409): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Glencliff Thresholds

Glencliff: days with a maximum temperature at or below 0 C (32 F) in 38 years, most in 1926 with 101.
Glencliff: days with a maximum temperature at or above 30 C (86 F) in 37 years, most in 1953 with 21.
Glencliff: nights with a minimum temperature at or below 0 C (32 F) in 37 years, most in 1919 with 188.
Glencliff: nights with a minimum temperature at or below -10 C (14 F) in 37 years, most in 1926 with 102.
15 fixed thresholds have at least one qualifying day at Glencliff.

Days at or above 30 C (86 F)

37 years with a qualifying day

Days per year at Glencliff with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 21 in 1953.

Days at or above 30 C (86 F) per year at Glencliff
Year	Days	Decade average
1910	2	7.1
1911	14	7.1
1912	9	7.1
1913	7	7.1
1915	1	7.1
1916	7	7.1
1917	3	7.1
1918	10	7.1
1919	11	7.1
1920	2	3.3
1921	10	3.3
1923	4	3.3
1924	1	3.3
1925	4	3.3
1926	2	3.3
1927	1	3.3
1928	2	3.3
1929	4	3.3
1930	2	6.5
1931	8	6.5
1934	4	6.5
1935	8	6.5
1936	2	6.5
1937	13	6.5
1938	10	6.5
1939	5	6.5
1940	1	4.7
1941	6	4.7
1942	2	4.7
1943	2	4.7
1944	15	4.7
1945	4	4.7
1946	4	4.7
1947	3	4.7
1948	2	4.7
1949	8	4.7
1953	21	21

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

First to last qualifying date each year at Glencliff
Year	First date	Last date
1910	1910-07-10	1910-07-24
1911	1911-05-11	1911-07-12
1912	1912-07-03	1912-07-15
1913	1913-07-01	1913-09-03
1915	1915-09-16	1915-09-16
1916	1916-07-13	1916-08-22
1917	1917-08-01	1917-08-03
1918	1918-07-22	1918-08-24
1919	1919-06-04	1919-07-28
1920	1920-08-09	1920-08-10
1921	1921-05-22	1921-07-26
1923	1923-06-20	1923-07-21
1924	1924-07-30	1924-07-30
1925	1925-06-04	1925-08-06
1926	1926-07-22	1926-07-23
1927	1927-07-14	1927-07-14
1928	1928-08-05	1928-08-17
1929	1929-05-30	1929-09-04
1930	1930-06-07	1930-06-16
1931	1931-06-20	1931-09-13
1934	1934-06-02	1934-07-19
1935	1935-07-05	1935-08-19
1936	1936-05-08	1936-07-08
1937	1937-05-31	1937-09-03
1938	1938-06-21	1938-08-16
1939	1939-07-05	1939-09-16
1940	1940-07-26	1940-07-26
1941	1941-04-20	1941-07-25
1942	1942-06-12	1942-07-19
1943	1943-07-13	1943-07-14
1944	1944-05-04	1944-08-17
1945	1945-06-15	1945-08-21
1946	1946-06-25	1946-07-19
1947	1947-08-14	1947-08-25
1948	1948-06-30	1948-08-26
1949	1949-06-13	1949-08-26
1953	1953-05-10	1953-09-05

Every Fixed Threshold

Fixed thresholds at Glencliff
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	37	21	1953	21
35 C (95 F): Days	2	4	1911	3
90 F (32.2 C): Days	12	10	1911	9
0 C (32 F): Ice days (max	38	101	1926	39
0 C (32 F): Frost days (min	37	188	1919	168
-10 C (14 F): Days with min	37	102	1926	61
-20 C (-4 F): Days with min	36	37	1934	11
-30 C (-22 F): Days with min	10	4	1920	2
20 C (68 F): Tropical nights (min	21	5	1943	1
10 mm (0.39 in): Days with 10 mm or more rain	37	47	1936	32
25 mm (0.98 in): Days with 25 mm or more rain	37	13	1916	10
50 mm (1.97 in): Days with 50 mm or more rain	28	4	1946	2
100 mm (3.94 in): Days with 100 mm or more rain	3	1	1924	1
10 cm (3.9 in): Days with 10 cm or more snowfall	7	8	1945	3
25 cm (9.8 in): Days with 25 cm or more snowfall	2	1	1945	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1910.

Download the Data

Data for Glencliff 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).

Glencliff Threshold Days by Year (USC00273409)

Key Facts for Glencliff Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

Related