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Built 2026-10-19 (19 October 2026)

Merke Threshold Days by Year (KZ000038344)

12 fixed thresholds counted per year at Merke (KZ000038344): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Merke Thresholds

  • Merke: days with 10 mm (0.39 in) or more of precipitation in 44 years, most in 1942 with 18.
  • Merke: days with 25 mm (0.98 in) or more of precipitation in 29 years, most in 1947 with 4.
  • Merke: days with a maximum temperature at or above 30 C (86 F) in 1 years, most in 2025 with 85.
  • Merke: days with a maximum temperature at or above 35 C (95 F) in 1 years, most in 2025 with 29.
  • 12 fixed thresholds have at least one qualifying day at Merke.
44 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Merke Days per year at Merke with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 18 in 1942. 051015201937: 141938: 61939: 111940: 111941: 141942: 181943: 41944: 81945: 121946: 91947: 171948: 141949: 141950: 111951: 121952: 141953: 121954: 81955: 101956: 71957: 81966: 111967: 101968: 71969: 141970: 131971: 71972: 111973: 111974: 101975: 91976: 71978: 161979: 81980: 71981: 161982: 111983: 111984: 71985: 121986: 91987: 171989: 81991: 5193719421947195219571970197519811986
Days per year at Merke with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 18 in 1942.
Days with 10 mm (0.39 in) or more of precipitation per year at Merke
YearDaysDecade average
19371410.3
1938610.3
19391110.3
19401112.1
19411412.1
19421812.1
1943412.1
1944812.1
19451212.1
1946912.1
19471712.1
19481412.1
19491412.1
19501110.3
19511210.3
19521410.3
19531210.3
1954810.3
19551010.3
1956710.3
1957810.3
19661110.5
19671010.5
1968710.5
19691410.5
19701310.2
1971710.2
19721110.2
19731110.2
19741010.2
1975910.2
1976710.2
19781610.2
1979810.2
1980710.9
19811610.9
19821110.9
19831110.9
1984710.9
19851210.9
1986910.9
19871710.9
1989810.9
199155
First to last qualifying date each year at Merke For each year, a bar from the first to the last day at Merke meeting 10 mm (0.39 in). 1937: 26 January 1937 to 7 November 19371938: 12 January 1938 to 2 October 19381939: 27 March 1939 to 10 November 19391940: 9 April 1940 to 8 November 19401941: 24 February 1941 to 18 December 19411942: 23 January 1942 to 25 November 19421943: 17 March 1943 to 30 October 19431944: 27 February 1944 to 9 November 19441945: 25 February 1945 to 7 November 19451946: 2 February 1946 to 23 October 19461947: 19 April 1947 to 7 December 19471948: 28 January 1948 to 30 October 19481949: 27 March 1949 to 4 November 19491950: 16 January 1950 to 22 November 19501951: 19 May 1951 to 22 December 19511952: 4 March 1952 to 19 September 19521953: 26 January 1953 to 28 November 19531954: 23 March 1954 to 21 November 19541955: 3 March 1955 to 2 December 19551956: 2 April 1956 to 20 October 19561957: 30 March 1957 to 30 October 19571966: 18 February 1966 to 22 December 19661967: 17 February 1967 to 6 October 19671968: 4 March 1968 to 9 November 19681969: 24 January 1969 to 23 December 19691970: 21 March 1970 to 7 November 19701971: 4 April 1971 to 19 December 19711972: 8 April 1972 to 9 November 19721973: 10 February 1973 to 22 December 19731974: 3 April 1974 to 30 November 19741975: 12 February 1975 to 15 December 19751976: 11 February 1976 to 31 October 19761978: 12 January 1978 to 18 November 19781979: 4 April 1979 to 6 November 19791980: 20 February 1980 to 22 November 19801981: 14 January 1981 to 24 November 19811982: 29 March 1982 to 11 November 19821983: 23 February 1983 to 21 November 19831984: 28 March 1984 to 16 November 19841985: 12 February 1985 to 21 December 19851986: 16 March 1986 to 16 November 19861987: 12 February 1987 to 27 October 19871989: 30 April 1989 to 8 December 19891991: 17 June 1991 to 17 December 199119371943194919551969197519821989JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Merke meeting 10 mm (0.39 in).
First to last qualifying date each year at Merke
YearFirst dateLast date
19371937-01-261937-11-07
19381938-01-121938-10-02
19391939-03-271939-11-10
19401940-04-091940-11-08
19411941-02-241941-12-18
19421942-01-231942-11-25
19431943-03-171943-10-30
19441944-02-271944-11-09
19451945-02-251945-11-07
19461946-02-021946-10-23
19471947-04-191947-12-07
19481948-01-281948-10-30
19491949-03-271949-11-04
19501950-01-161950-11-22
19511951-05-191951-12-22
19521952-03-041952-09-19
19531953-01-261953-11-28
19541954-03-231954-11-21
19551955-03-031955-12-02
19561956-04-021956-10-20
19571957-03-301957-10-30
19661966-02-181966-12-22
19671967-02-171967-10-06
19681968-03-041968-11-09
19691969-01-241969-12-23
19701970-03-211970-11-07
19711971-04-041971-12-19
19721972-04-081972-11-09
19731973-02-101973-12-22
19741974-04-031974-11-30
19751975-02-121975-12-15
19761976-02-111976-10-31
19781978-01-121978-11-18
19791979-04-041979-11-06
19801980-02-201980-11-22
19811981-01-141981-11-24
19821982-03-291982-11-11
19831983-02-231983-11-21
19841984-03-281984-11-16
19851985-02-121985-12-21
19861986-03-161986-11-16
19871987-02-121987-10-27
19891989-04-301989-12-08
19911991-06-171991-12-17

Every Fixed Threshold

Fixed thresholds at Merke
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days185202585
35 C (95 F): Days129202529
90 F (32.2 C): Days163202563
100 F (37.8 C): Days1320253
0 C (32 F): Ice days (max117202517
0 C (32 F): Frost days (min197202597
-10 C (14 F): Days with min112202512
20 C (68 F): Tropical nights (min159202559
25 C (77 F): Days with min1220252
10 mm (0.39 in): Days with 10 mm or more rain441819425
25 mm (0.98 in): Days with 25 mm or more rain29419472
50 mm (1.97 in): Days with 50 mm or more rain1119851

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 2025.

Download the Data

  • Data for Merke 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 . Last revised (2025-12-31).