Kayenta Threshold Days by Year (USC00024578)

15 fixed thresholds counted per year at Kayenta (USC00024578): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Kayenta Thresholds

Kayenta: days with 10 mm (0.39 in) or more of precipitation in 41 years, most in 1952 with 10.
Kayenta: nights with a minimum temperature at or below 0 C (32 F) in 38 years, most in 1967 with 165.
Kayenta: nights with a minimum temperature at or below -10 C (14 F) in 38 years, most in 1931 with 47.
Kayenta: days with a maximum temperature at or above 30 C (86 F) in 36 years, most in 1934 with 113.
15 fixed thresholds have at least one qualifying day at Kayenta.

Days at or above 30 C (86 F)

36 years with a qualifying day

Days per year at Kayenta with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 113 in 1934.

Days at or above 30 C (86 F) per year at Kayenta
Year	Days	Decade average
1921	69	80.9
1922	89	80.9
1923	66	80.9
1924	96	80.9
1925	78	80.9
1926	103	80.9
1927	74	80.9
1928	91	80.9
1929	62	80.9
1930	82	92.8
1931	89	92.8
1932	90	92.8
1933	103	92.8
1934	113	92.8
1935	93	92.8
1936	90	92.8
1937	84	92.8
1938	91	92.8
1943	99	98.8
1947	106	98.8
1948	95	98.8
1949	95	98.8
1950	90	91.6
1951	97	91.6
1952	92	91.6
1953	74	91.6
1954	109	91.6
1956	100	91.6
1957	64	91.6
1958	106	91.6
1959	92	91.6
1961	73	74.4
1962	78	74.4
1966	80	74.4
1967	69	74.4
1968	72	74.4

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

First to last qualifying date each year at Kayenta
Year	First date	Last date
1921	1921-05-12	1921-09-28
1922	1922-05-06	1922-09-27
1923	1923-05-09	1923-09-11
1924	1924-05-05	1924-09-25
1925	1925-05-18	1925-09-16
1926	1926-05-19	1926-09-21
1927	1927-05-15	1927-09-22
1928	1928-04-30	1928-09-25
1929	1929-06-13	1929-09-15
1930	1930-05-20	1930-09-21
1931	1931-05-24	1931-09-12
1932	1932-05-17	1932-09-21
1933	1933-05-26	1933-09-30
1934	1934-05-06	1934-10-07
1935	1935-06-05	1935-10-06
1936	1936-05-04	1936-10-11
1937	1937-05-14	1937-09-20
1938	1938-05-13	1938-09-27
1943	1943-04-25	1943-09-23
1947	1947-05-02	1947-10-01
1948	1948-05-14	1948-09-26
1949	1949-04-24	1949-10-04
1950	1950-05-22	1950-10-13
1951	1951-05-25	1951-09-24
1952	1952-05-13	1952-10-04
1953	1953-05-23	1953-10-01
1954	1954-05-07	1954-10-01
1956	1956-05-17	1956-10-07
1957	1957-06-03	1957-10-05
1958	1958-05-17	1958-09-22
1959	1959-05-01	1959-09-11
1961	1961-05-25	1961-09-13
1962	1962-05-10	1962-09-19
1966	1966-05-26	1966-09-26
1967	1967-05-20	1967-10-06
1968	1968-05-29	1968-09-12

Every Fixed Threshold

Fixed thresholds at Kayenta
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	36	113	1934	72
35 C (95 F): Days	36	40	1936	14
40 C (104 F): Days	4	3	1954	3
90 F (32.2 C): Days	36	80	1954	24
100 F (37.8 C): Days	27	12	1954	5
0 C (32 F): Ice days (max	33	26	1932	6
0 C (32 F): Frost days (min	38	165	1967	123
-10 C (14 F): Days with min	38	47	1931	18
-20 C (-4 F): Days with min	12	11	1937	4
20 C (68 F): Tropical nights (min	29	16	1958	16
25 C (77 F): Days with min	4	6	1926	1
10 mm (0.39 in): Days with 10 mm or more rain	41	10	1952	3
25 mm (0.98 in): Days with 25 mm or more rain	17	2	1925	1
10 cm (3.9 in): Days with 10 cm or more snowfall	19	5	1949	2
25 cm (9.8 in): Days with 25 cm or more snowfall	2	2	1931	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1921.

Download the Data

Data for Kayenta 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).

Kayenta Threshold Days by Year (USC00024578)

Key Facts for Kayenta Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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