Chinle Threshold Days by Year (USC00021634)

17 fixed thresholds counted per year at Chinle (USC00021634): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Chinle Thresholds

Chinle: nights with a minimum temperature at or below 0 C (32 F) in 51 years, most in 1924 with 204.
Chinle: nights with a minimum temperature at or below -10 C (14 F) in 51 years, most in 1924 with 75.
Chinle: days with 10 mm (0.39 in) or more of precipitation in 51 years, most in 1941 with 15.
Chinle: days with a maximum temperature at or above 30 C (86 F) in 47 years, most in 1910 with 117.
17 fixed thresholds have at least one qualifying day at Chinle.

Days at or above 30 C (86 F)

47 years with a qualifying day

Days per year at Chinle with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 117 in 1910.

Days at or above 30 C (86 F) per year at Chinle
Year	Days	Decade average
1909	70	70
1910	117	66.9
1911	59	66.9
1912	54	66.9
1913	18	66.9
1915	65	66.9
1916	71	66.9
1917	84	66.9
1921	74	76.4
1922	98	76.4
1923	62	76.4
1924	89	76.4
1927	59	76.4
1936	83	87.7
1937	91	87.7
1939	89	87.7
1940	86	86.4
1941	73	86.4
1942	93	86.4
1943	99	86.4
1944	88	86.4
1945	79	86.4
1946	90	86.4
1947	87	86.4
1948	88	86.4
1949	81	86.4
1950	83	94.9
1951	95	94.9
1952	96	94.9
1953	109	94.9
1954	90	94.9
1955	91	94.9
1956	109	94.9
1957	77	94.9
1958	107	94.9
1959	92	94.9
1960	102	83.8
1961	78	83.8
1962	92	83.8
1963	91	83.8
1964	89	83.8
1965	61	83.8
1966	100	83.8
1967	78	83.8
1968	52	83.8
1969	95	83.8
1970	73	73

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

First to last qualifying date each year at Chinle
Year	First date	Last date
1909	1909-06-03	1909-09-03
1910	1910-05-04	1910-10-09
1911	1911-06-04	1911-09-25
1912	1912-05-28	1912-08-26
1913	1913-05-12	1913-07-10
1915	1915-05-12	1915-09-23
1916	1916-05-08	1916-09-08
1917	1917-06-08	1917-10-05
1921	1921-05-27	1921-09-28
1922	1922-05-23	1922-10-03
1923	1923-06-05	1923-09-10
1924	1924-05-12	1924-09-15
1927	1927-05-15	1927-09-21
1936	1936-05-03	1936-10-19
1937	1937-05-15	1937-09-30
1939	1939-05-19	1939-09-13
1940	1940-05-12	1940-09-10
1941	1941-05-10	1941-09-11
1942	1942-05-21	1942-09-27
1943	1943-04-29	1943-09-22
1944	1944-05-14	1944-09-23
1945	1945-05-26	1945-09-15
1946	1946-06-03	1946-09-14
1947	1947-05-02	1947-10-05
1948	1948-05-14	1948-09-21
1949	1949-04-24	1949-09-22
1950	1950-05-22	1950-10-12
1951	1951-05-25	1951-09-28
1952	1952-05-03	1952-09-19
1953	1953-05-22	1953-10-09
1954	1954-05-08	1954-09-22
1955	1955-06-06	1955-10-01
1956	1956-05-04	1956-10-06
1957	1957-06-03	1957-09-30
1958	1958-05-18	1958-09-22
1959	1959-05-11	1959-09-13
1960	1960-05-11	1960-09-29
1961	1961-05-19	1961-09-06
1962	1962-04-18	1962-09-20
1963	1963-05-06	1963-10-03
1964	1964-05-15	1964-10-09
1965	1965-04-22	1965-09-14
1966	1966-05-06	1966-09-24
1967	1967-05-17	1967-09-23
1968	1968-05-28	1968-09-13
1969	1969-05-17	1969-09-29
1970	1970-05-17	1970-09-12

Every Fixed Threshold

Fixed thresholds at Chinle
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	47	117	1910	73
35 C (95 F): Days	45	45	1960	16
40 C (104 F): Days	1	1	1953	1
90 F (32.2 C): Days	47	83	1960	41
100 F (37.8 C): Days	28	7	1953	2
0 C (32 F): Ice days (max	44	24	1937	2
0 C (32 F): Frost days (min	51	204	1924	149
-10 C (14 F): Days with min	51	75	1924	22
-20 C (-4 F): Days with min	31	14	1922	3
-30 C (-22 F): Days with min	8	3	1922	1
20 C (68 F): Tropical nights (min	30	8	1954	2
25 C (77 F): Days with min	1	1	1947	1
10 mm (0.39 in): Days with 10 mm or more rain	51	15	1941	5
25 mm (0.98 in): Days with 25 mm or more rain	24	4	1943	1
50 mm (1.97 in): Days with 50 mm or more rain	1	1	1943	1
10 cm (3.9 in): Days with 10 cm or more snowfall	25	3	1964	2
25 cm (9.8 in): Days with 25 cm or more snowfall	2	1	1922	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1909.

Download the Data

Data for Chinle 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).

Chinle Threshold Days by Year (USC00021634)

Key Facts for Chinle Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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