Marmarth Threshold Days by Year

18 fixed thresholds counted per year at Marmarth (USC00325573): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Marmarth Thresholds

Marmarth: days with 10 mm (0.39 in) or more of precipitation in 42 years, most in 1944 with 17.
Marmarth: days with 25 mm (0.98 in) or more of precipitation in 37 years, most in 1947 with 4.
Marmarth: nights with a minimum temperature at or below 0 C (32 F) in 36 years, most in 1917 with 214.
Marmarth: nights with a minimum temperature at or below -10 C (14 F) in 36 years, most in 1917 with 100.
18 fixed thresholds have at least one qualifying day at Marmarth.

Days at or above 30 C (86 F)

33 years with a qualifying day

Days per year at Marmarth with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 85 in 1936.

Days at or above 30 C (86 F) per year at Marmarth
Year	Days	Decade average
1913	38	34
1915	4	34
1916	29	34
1917	39	34
1918	29	34
1919	65	34
1920	41	41
1921	48	41
1926	34	41
1930	46	55.8
1931	54	55.8
1933	63	55.8
1934	58	55.8
1935	50	55.8
1936	85	55.8
1937	50	55.8
1938	48	55.8
1939	48	55.8
1940	45	42.1
1941	46	42.1
1942	27	42.1
1943	53	42.1
1944	26	42.1
1945	40	42.1
1946	40	42.1
1947	39	42.1
1948	45	42.1
1949	60	42.1
1950	33	37.8
1951	27	37.8
1953	33	37.8
1954	43	37.8
1955	53	37.8

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

First to last qualifying date each year at Marmarth
Year	First date	Last date
1913	1913-05-27	1913-09-13
1915	1915-07-23	1915-09-01
1916	1916-07-01	1916-09-08
1917	1917-05-15	1917-09-23
1918	1918-05-04	1918-09-22
1919	1919-05-24	1919-09-16
1920	1920-06-08	1920-10-05
1921	1921-06-11	1921-09-02
1926	1926-04-29	1926-08-30
1930	1930-06-17	1930-09-18
1931	1931-05-14	1931-09-08
1933	1933-05-31	1933-10-04
1934	1934-05-05	1934-10-07
1935	1935-06-29	1935-09-22
1936	1936-04-19	1936-09-22
1937	1937-05-19	1937-10-03
1938	1938-04-30	1938-10-03
1939	1939-04-30	1939-09-18
1940	1940-05-11	1940-09-17
1941	1941-05-12	1941-09-18
1942	1942-04-22	1942-09-09
1943	1943-05-27	1943-10-10
1944	1944-05-13	1944-09-07
1945	1945-06-21	1945-09-06
1946	1946-06-09	1946-10-01
1947	1947-07-02	1947-09-08
1948	1948-05-18	1948-09-26
1949	1949-04-29	1949-09-24
1950	1950-06-05	1950-09-07
1951	1951-05-28	1951-10-02
1953	1953-06-12	1953-10-01
1954	1954-05-20	1954-09-26
1955	1955-05-01	1955-10-10

Every Fixed Threshold

Fixed thresholds at Marmarth
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	33	85	1936	53
35 C (95 F): Days	32	37	1936	16
40 C (104 F): Days	8	5	1936	3
90 F (32.2 C): Days	33	61	1936	33
100 F (37.8 C): Days	22	16	1936	4
110 F (43.3 C): Days	1	1	1949	1
0 C (32 F): Ice days (max	33	89	1937	76
0 C (32 F): Frost days (min	36	214	1917	176
-10 C (14 F): Days with min	36	100	1917	100
-20 C (-4 F): Days with min	36	57	1916	30
-30 C (-22 F): Days with min	33	22	1936	2
-40 C (-40 F): Days with min	5	4	1936	2
20 C (68 F): Tropical nights (min	26	20	1936	3
10 mm (0.39 in): Days with 10 mm or more rain	42	17	1944	9
25 mm (0.98 in): Days with 25 mm or more rain	37	4	1947	1
50 mm (1.97 in): Days with 50 mm or more rain	5	2	1915	1
10 cm (3.9 in): Days with 10 cm or more snowfall	21	7	1949	1
25 cm (9.8 in): Days with 25 cm or more snowfall	1	1	1949	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.

Download the Data

Data for Marmarth 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).

Marmarth Threshold Days by Year

Key Facts for Marmarth Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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