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Data as of 2025-12-31
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Built 2026-10-18 (18 October 2026)

Spitak Threshold Days by Year

2 fixed thresholds counted per year at Spitak (AM000037695): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Spitak Thresholds

  • Spitak: days with 10 mm (0.39 in) or more of precipitation in 39 years, most in 1963 with 21.
  • Spitak: days with 25 mm (0.98 in) or more of precipitation in 15 years, most in 1969 with 3.
  • 2 fixed thresholds have at least one qualifying day at Spitak.
39 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Spitak Days per year at Spitak with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 21 in 1963. 01020301939: 151940: 91941: 101942: 141943: 91944: 81945: 71946: 111948: 121949: 41950: 41951: 181952: 71953: 101955: 191957: 31958: 121959: 161960: 111961: 71962: 101963: 211967: 191968: 91969: 151970: 91971: 141972: 141973: 101974: 91976: 131984: 71985: 71986: 81987: 121988: 181989: 61990: 61991: 31939194319481952195819621969197319851989
Days per year at Spitak with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 21 in 1963.
Days with 10 mm (0.39 in) or more of precipitation per year at Spitak
YearDaysDecade average
19391515
194099.3
1941109.3
1942149.3
194399.3
194489.3
194579.3
1946119.3
1948129.3
194949.3
1950411.1
19511811.1
1952711.1
19531011.1
19551911.1
1957311.1
19581211.1
19591611.1
19601113.1
1961713.1
19621013.1
19632113.1
19671913.1
1968913.1
19691513.1
1970911.5
19711411.5
19721411.5
19731011.5
1974911.5
19761311.5
198479.7
198579.7
198689.7
1987129.7
1988189.7
198969.7
199064.5
199134.5
First to last qualifying date each year at Spitak For each year, a bar from the first to the last day at Spitak meeting 10 mm (0.39 in). 1939: 2 May 1939 to 14 December 19391940: 4 January 1940 to 19 September 19401941: 10 February 1941 to 9 November 19411942: 7 March 1942 to 6 December 19421943: 10 May 1943 to 17 August 19431944: 4 June 1944 to 20 November 19441945: 17 April 1945 to 11 October 19451946: 17 February 1946 to 15 October 19461948: 19 March 1948 to 14 November 19481949: 1 June 1949 to 25 September 19491950: 10 June 1950 to 29 November 19501951: 23 January 1951 to 16 December 19511952: 26 February 1952 to 25 June 19521953: 12 March 1953 to 24 November 19531955: 23 February 1955 to 29 November 19551957: 7 March 1957 to 2 July 19571958: 17 April 1958 to 4 December 19581959: 1 May 1959 to 13 October 19591960: 4 April 1960 to 21 October 19601961: 31 March 1961 to 22 November 19611962: 4 April 1962 to 6 November 19621963: 16 March 1963 to 21 October 19631967: 19 January 1967 to 23 December 19671968: 15 January 1968 to 17 August 19681969: 21 March 1969 to 13 December 19691970: 19 February 1970 to 31 August 19701971: 16 April 1971 to 2 December 19711972: 15 May 1972 to 28 October 19721973: 13 May 1973 to 18 December 19731974: 24 April 1974 to 19 November 19741976: 17 April 1976 to 20 July 19761984: 12 March 1984 to 30 October 19841985: 15 January 1985 to 20 October 19851986: 10 May 1986 to 2 November 19861987: 23 January 1987 to 6 November 19871988: 21 March 1988 to 14 October 19881989: 20 February 1989 to 5 October 19891990: 18 February 1990 to 8 November 19901991: 16 May 1991 to 20 August 199119391944195019571962197019761988JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Spitak meeting 10 mm (0.39 in).
First to last qualifying date each year at Spitak
YearFirst dateLast date
19391939-05-021939-12-14
19401940-01-041940-09-19
19411941-02-101941-11-09
19421942-03-071942-12-06
19431943-05-101943-08-17
19441944-06-041944-11-20
19451945-04-171945-10-11
19461946-02-171946-10-15
19481948-03-191948-11-14
19491949-06-011949-09-25
19501950-06-101950-11-29
19511951-01-231951-12-16
19521952-02-261952-06-25
19531953-03-121953-11-24
19551955-02-231955-11-29
19571957-03-071957-07-02
19581958-04-171958-12-04
19591959-05-011959-10-13
19601960-04-041960-10-21
19611961-03-311961-11-22
19621962-04-041962-11-06
19631963-03-161963-10-21
19671967-01-191967-12-23
19681968-01-151968-08-17
19691969-03-211969-12-13
19701970-02-191970-08-31
19711971-04-161971-12-02
19721972-05-151972-10-28
19731973-05-131973-12-18
19741974-04-241974-11-19
19761976-04-171976-07-20
19841984-03-121984-10-30
19851985-01-151985-10-20
19861986-05-101986-11-02
19871987-01-231987-11-06
19881988-03-211988-10-14
19891989-02-201989-10-05
19901990-02-181990-11-08
19911991-05-161991-08-20

Every Fixed Threshold

Fixed thresholds at Spitak
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain392119633
25 mm (0.98 in): Days with 25 mm or more rain15319692

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1939.

Download the Data

  • Data for Spitak 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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2025-12-31).