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Data as of 2025-12-31
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Built 2026-10-19 (19 October 2026)

Rocky Glen (Rayak) Threshold Days by Year (ASN00053036)

4 fixed thresholds counted per year at Rocky Glen (Rayak) (ASN00053036): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Rocky Glen (Rayak) Thresholds

  • Rocky Glen (Rayak): days with 10 mm (0.39 in) or more of precipitation in 42 years, most in 1950 with 35.
  • Rocky Glen (Rayak): days with 25 mm (0.98 in) or more of precipitation in 42 years, most in 1950 with 15.
  • Rocky Glen (Rayak): days with 50 mm (1.97 in) or more of precipitation in 33 years, most in 1950 with 6.
  • Rocky Glen (Rayak): days with 100 mm (3.94 in) or more of precipitation in 4 years, most in 1950 with 3.
  • 4 fixed thresholds have at least one qualifying day at Rocky Glen (Rayak).
42 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Rocky Glen (Rayak) Days per year at Rocky Glen (Rayak) with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 35 in 1950. 0102030401938: 161939: 171940: 121941: 231942: 171943: 201944: 101945: 191946: 121947: 321948: 161949: 221950: 351951: 161952: 191953: 161954: 301955: 271956: 291957: 81958: 171959: 261960: 171961: 211962: 281963: 271964: 181965: 151966: 181967: 131968: 221969: 281970: 301971: 241972: 181973: 321974: 171975: 181976: 251977: 251978: 331979: 17193819431948195319581963196819731978
Days per year at Rocky Glen (Rayak) with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 35 in 1950.
Days with 10 mm (0.39 in) or more of precipitation per year at Rocky Glen (Rayak)
YearDaysDecade average
19381616.5
19391716.5
19401218.3
19412318.3
19421718.3
19432018.3
19441018.3
19451918.3
19461218.3
19473218.3
19481618.3
19492218.3
19503522.3
19511622.3
19521922.3
19531622.3
19543022.3
19552722.3
19562922.3
1957822.3
19581722.3
19592622.3
19601720.7
19612120.7
19622820.7
19632720.7
19641820.7
19651520.7
19661820.7
19671320.7
19682220.7
19692820.7
19703023.9
19712423.9
19721823.9
19733223.9
19741723.9
19751823.9
19762523.9
19772523.9
19783323.9
19791723.9
First to last qualifying date each year at Rocky Glen (Rayak) For each year, a bar from the first to the last day at Rocky Glen (Rayak) meeting 10 mm (0.39 in). 1938: 31 January 1938 to 31 December 19381939: 26 January 1939 to 23 October 19391940: 19 March 1940 to 1 December 19401941: 1 January 1941 to 9 November 19411942: 2 February 1942 to 27 December 19421943: 4 January 1943 to 19 December 19431944: 2 January 1944 to 23 August 19441945: 17 January 1945 to 19 December 19451946: 19 January 1946 to 13 December 19461947: 1 February 1947 to 25 December 19471948: 2 January 1948 to 31 December 19481949: 9 January 1949 to 20 December 19491950: 16 January 1950 to 26 November 19501951: 1 January 1951 to 27 November 19511952: 25 February 1952 to 31 December 19521953: 4 January 1953 to 6 November 19531954: 1 January 1954 to 30 December 19541955: 21 January 1955 to 21 December 19551956: 20 January 1956 to 14 December 19561957: 8 February 1957 to 31 December 19571958: 29 January 1958 to 30 December 19581959: 1 January 1959 to 22 December 19591960: 5 January 1960 to 15 December 19601961: 3 January 1961 to 31 December 19611962: 1 January 1962 to 30 December 19621963: 4 January 1963 to 27 December 19631964: 14 January 1964 to 10 December 19641965: 5 January 1965 to 15 December 19651966: 5 February 1966 to 31 December 19661967: 2 January 1967 to 21 October 19671968: 5 January 1968 to 6 December 19681969: 9 February 1969 to 24 December 19691970: 10 January 1970 to 29 December 19701971: 14 January 1971 to 16 December 19711972: 13 January 1972 to 9 December 19721973: 13 January 1973 to 31 December 19731974: 7 January 1974 to 18 November 19741975: 4 January 1975 to 6 December 19751976: 13 January 1976 to 24 December 19761977: 12 January 1977 to 25 November 19771978: 5 January 1978 to 26 December 19781979: 18 January 1979 to 21 November 19791938194419501956196219681974JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Rocky Glen (Rayak) meeting 10 mm (0.39 in).
First to last qualifying date each year at Rocky Glen (Rayak)
YearFirst dateLast date
19381938-01-311938-12-31
19391939-01-261939-10-23
19401940-03-191940-12-01
19411941-01-011941-11-09
19421942-02-021942-12-27
19431943-01-041943-12-19
19441944-01-021944-08-23
19451945-01-171945-12-19
19461946-01-191946-12-13
19471947-02-011947-12-25
19481948-01-021948-12-31
19491949-01-091949-12-20
19501950-01-161950-11-26
19511951-01-011951-11-27
19521952-02-251952-12-31
19531953-01-041953-11-06
19541954-01-011954-12-30
19551955-01-211955-12-21
19561956-01-201956-12-14
19571957-02-081957-12-31
19581958-01-291958-12-30
19591959-01-011959-12-22
19601960-01-051960-12-15
19611961-01-031961-12-31
19621962-01-011962-12-30
19631963-01-041963-12-27
19641964-01-141964-12-10
19651965-01-051965-12-15
19661966-02-051966-12-31
19671967-01-021967-10-21
19681968-01-051968-12-06
19691969-02-091969-12-24
19701970-01-101970-12-29
19711971-01-141971-12-16
19721972-01-131972-12-09
19731973-01-131973-12-31
19741974-01-071974-11-18
19751975-01-041975-12-06
19761976-01-131976-12-24
19771977-01-121977-11-25
19781978-01-051978-12-26
19791979-01-181979-11-21

Every Fixed Threshold

Fixed thresholds at Rocky Glen (Rayak)
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain4235195017
25 mm (0.98 in): Days with 25 mm or more rain421519505
50 mm (1.97 in): Days with 50 mm or more rain33619501
100 mm (3.94 in): Days with 100 mm or more rain4319501

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1938.

Download the Data

  • Data for Rocky Glen (Rayak) 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).