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Built 2026-10-16 (16 October 2026)

Stepanavan Threshold Days by Year

3 fixed thresholds counted per year at Stepanavan (AM000037693): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Stepanavan Thresholds

  • Stepanavan: days with 10 mm (0.39 in) or more of precipitation in 27 years, most in 1963 with 33.
  • Stepanavan: days with 25 mm (0.98 in) or more of precipitation in 26 years, most in 1955 with 4.
  • Stepanavan: days with 50 mm (1.97 in) or more of precipitation in 3 years, most in 1958 with 1.
  • 3 fixed thresholds have at least one qualifying day at Stepanavan.
27 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Stepanavan Days per year at Stepanavan with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 33 in 1963. 0102030401955: 251956: 201957: 131958: 161959: 281960: 131961: 81962: 151963: 331964: 161965: 171966: 201970: 131971: 151972: 201973: 141974: 151975: 251976: 231984: 181985: 151986: 251987: 201988: 281989: 171990: 181991: 18195519581961196419701973197619861989
Days per year at Stepanavan with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 33 in 1963.
Days with 10 mm (0.39 in) or more of precipitation per year at Stepanavan
YearDaysDecade average
19552520.4
19562020.4
19571320.4
19581620.4
19592820.4
19601317.4
1961817.4
19621517.4
19633317.4
19641617.4
19651717.4
19662017.4
19701317.9
19711517.9
19722017.9
19731417.9
19741517.9
19752517.9
19762317.9
19841820.5
19851520.5
19862520.5
19872020.5
19882820.5
19891720.5
19901818
19911818
First to last qualifying date each year at Stepanavan For each year, a bar from the first to the last day at Stepanavan meeting 10 mm (0.39 in). 1955: 3 March 1955 to 29 November 19551956: 5 February 1956 to 13 October 19561957: 7 March 1957 to 27 September 19571958: 17 April 1958 to 9 October 19581959: 1 May 1959 to 29 October 19591960: 22 February 1960 to 21 October 19601961: 19 January 1961 to 22 November 19611962: 4 April 1962 to 7 December 19621963: 24 January 1963 to 10 December 19631964: 17 May 1964 to 27 October 19641965: 11 March 1965 to 27 November 19651966: 3 April 1966 to 6 October 19661970: 10 March 1970 to 14 October 19701971: 13 March 1971 to 8 October 19711972: 13 March 1972 to 8 September 19721973: 27 March 1973 to 23 November 19731974: 3 May 1974 to 19 November 19741975: 10 February 1975 to 22 December 19751976: 6 January 1976 to 24 September 19761984: 13 February 1984 to 30 October 19841985: 15 January 1985 to 1 December 19851986: 19 January 1986 to 28 November 19861987: 23 January 1987 to 25 December 19871988: 29 February 1988 to 4 October 19881989: 11 April 1989 to 30 November 19891990: 17 February 1990 to 11 November 19901991: 21 January 1991 to 1 December 19911955195919631970197419851989JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Stepanavan meeting 10 mm (0.39 in).
First to last qualifying date each year at Stepanavan
YearFirst dateLast date
19551955-03-031955-11-29
19561956-02-051956-10-13
19571957-03-071957-09-27
19581958-04-171958-10-09
19591959-05-011959-10-29
19601960-02-221960-10-21
19611961-01-191961-11-22
19621962-04-041962-12-07
19631963-01-241963-12-10
19641964-05-171964-10-27
19651965-03-111965-11-27
19661966-04-031966-10-06
19701970-03-101970-10-14
19711971-03-131971-10-08
19721972-03-131972-09-08
19731973-03-271973-11-23
19741974-05-031974-11-19
19751975-02-101975-12-22
19761976-01-061976-09-24
19841984-02-131984-10-30
19851985-01-151985-12-01
19861986-01-191986-11-28
19871987-01-231987-12-25
19881988-02-291988-10-04
19891989-04-111989-11-30
19901990-02-171990-11-11
19911991-01-211991-12-01

Every Fixed Threshold

Fixed thresholds at Stepanavan
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain2733196318
25 mm (0.98 in): Days with 25 mm or more rain26419552
50 mm (1.97 in): Days with 50 mm or more rain3119581

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1955.

Download the Data

  • Data for Stepanavan 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 2026-10-14 (14 October 2026). Threshold counts are computed by this site.

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