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Built 2026-10-19 (19 October 2026)

Rocky Mt 8 ESE Threshold Days by Year (USC00317400)

17 fixed thresholds counted per year at Rocky Mt 8 ESE (USC00317400): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Rocky Mt 8 ESE Thresholds

  • Rocky Mt 8 ESE: days with 10 mm (0.39 in) or more of precipitation in 101 years, most in 1982 with 55.
  • Rocky Mt 8 ESE: days with 25 mm (0.98 in) or more of precipitation in 101 years, most in 2020 with 23.
  • Rocky Mt 8 ESE: days with 50 mm (1.97 in) or more of precipitation in 97 years, most in 2020 with 11.
  • Rocky Mt 8 ESE: days with a maximum temperature at or above 30 C (86 F) in 46 years, most in 1957 with 105.
  • 17 fixed thresholds have at least one qualifying day at Rocky Mt 8 ESE.
46 years with a qualifying day
Days at or above 30 C (86 F) per year at Rocky Mt 8 ESE Days per year at Rocky Mt 8 ESE with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 105 in 1957. 0501001501955: 861956: 911957: 1051958: 881959: 1021960: 891961: 931962: 851963: 881964: 841965: 941966: 721967: 711968: 941969: 851970: 1041971: 871972: 781973: 1041974: 681975: 971976: 831977: 1041978: 931979: 571980: 981981: 711982: 671983: 781984: 701985: 981986: 941987: 951991: 1042013: 622014: 532015: 872016: 912017: 742018: 832019: 952020: 852021: 972024: 742025: 792026: 1021955196019651970197519801985201420192026
Days per year at Rocky Mt 8 ESE with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 105 in 1957.
Days at or above 30 C (86 F) per year at Rocky Mt 8 ESE
YearDaysDecade average
19558694.4
19569194.4
195710594.4
19588894.4
195910294.4
19608985.5
19619385.5
19628585.5
19638885.5
19648485.5
19659485.5
19667285.5
19677185.5
19689485.5
19698585.5
197010487.5
19718787.5
19727887.5
197310487.5
19746887.5
19759787.5
19768387.5
197710487.5
19789387.5
19795787.5
19809883.9
19817183.9
19826783.9
19837883.9
19847083.9
19859883.9
19869483.9
19879583.9
1991104104
20136277.9
20145377.9
20158777.9
20169177.9
20177477.9
20188377.9
20199577.9
20208587.4
20219787.4
20247487.4
20257987.4
202610287.4
First to last qualifying date each year at Rocky Mt 8 ESE For each year, a bar from the first to the last day at Rocky Mt 8 ESE meeting 30 C (86 F). 1955: 19 April 1955 to 8 September 19551956: 3 April 1956 to 23 September 19561957: 21 April 1957 to 22 September 19571958: 19 April 1958 to 1 October 19581959: 8 April 1959 to 10 October 19591960: 23 April 1960 to 21 September 19601961: 23 April 1961 to 1 November 19611962: 23 April 1962 to 12 October 19621963: 3 April 1963 to 21 September 19631964: 19 April 1964 to 24 September 19641965: 12 April 1965 to 24 September 19651966: 28 May 1966 to 11 September 19661967: 2 April 1967 to 6 October 19671968: 21 March 1968 to 4 October 19681969: 5 May 1969 to 17 September 19691970: 21 April 1970 to 14 October 19701971: 13 April 1971 to 21 September 19711972: 15 April 1972 to 30 September 19721973: 15 March 1973 to 16 October 19731974: 7 March 1974 to 3 November 19741975: 16 May 1975 to 15 October 19751976: 4 March 1976 to 8 October 19761977: 11 April 1977 to 2 October 19771978: 11 April 1978 to 23 October 19781979: 10 June 1979 to 23 September 19791980: 24 April 1980 to 27 September 19801981: 13 April 1981 to 7 October 19811982: 8 May 1982 to 19 September 19821983: 16 May 1983 to 6 October 19831984: 28 April 1984 to 28 October 19841985: 29 March 1985 to 16 October 19851986: 31 March 1986 to 6 October 19861987: 2 May 1987 to 18 September 19871991: 7 April 1991 to 4 October 19912013: 11 April 2013 to 6 October 20132014: 9 May 2014 to 12 September 20142015: 13 May 2015 to 21 September 20152016: 20 April 2016 to 20 October 20162017: 22 April 2017 to 11 October 20172018: 12 May 2018 to 6 October 20182019: 17 May 2019 to 4 October 20192020: 30 March 2020 to 12 September 20202021: 29 April 2021 to 7 October 20212024: 15 April 2024 to 29 September 20242025: 4 April 2025 to 6 October 20252026: 11 March 2026 to 30 September 202619551961196719731979198520152021JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Rocky Mt 8 ESE meeting 30 C (86 F).
First to last qualifying date each year at Rocky Mt 8 ESE
YearFirst dateLast date
19551955-04-191955-09-08
19561956-04-031956-09-23
19571957-04-211957-09-22
19581958-04-191958-10-01
19591959-04-081959-10-10
19601960-04-231960-09-21
19611961-04-231961-11-01
19621962-04-231962-10-12
19631963-04-031963-09-21
19641964-04-191964-09-24
19651965-04-121965-09-24
19661966-05-281966-09-11
19671967-04-021967-10-06
19681968-03-211968-10-04
19691969-05-051969-09-17
19701970-04-211970-10-14
19711971-04-131971-09-21
19721972-04-151972-09-30
19731973-03-151973-10-16
19741974-03-071974-11-03
19751975-05-161975-10-15
19761976-03-041976-10-08
19771977-04-111977-10-02
19781978-04-111978-10-23
19791979-06-101979-09-23
19801980-04-241980-09-27
19811981-04-131981-10-07
19821982-05-081982-09-19
19831983-05-161983-10-06
19841984-04-281984-10-28
19851985-03-291985-10-16
19861986-03-311986-10-06
19871987-05-021987-09-18
19911991-04-071991-10-04
20132013-04-112013-10-06
20142014-05-092014-09-12
20152015-05-132015-09-21
20162016-04-202016-10-20
20172017-04-222017-10-11
20182018-05-122018-10-06
20192019-05-172019-10-04
20202020-03-302020-09-12
20212021-04-292021-10-07
20242024-04-152024-09-29
20252025-04-042025-10-06
20262026-03-112026-09-30

Every Fixed Threshold

Fixed thresholds at Rocky Mt 8 ESE
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days461051957102
35 C (95 F): Days4130198020
90 F (32.2 C): Days4671195760
100 F (37.8 C): Days16619772
0 C (32 F): Ice days (max34920152
0 C (32 F): Frost days (min4593196844
-10 C (14 F): Days with min35819801
-20 C (-4 F): Days with min1119851
20 C (68 F): Tropical nights (min4599201879
25 C (77 F): Days with min12620241
10 mm (0.39 in): Days with 10 mm or more rain10155198222
25 mm (0.98 in): Days with 25 mm or more rain1012320204
50 mm (1.97 in): Days with 50 mm or more rain971120201
100 mm (3.94 in): Days with 100 mm or more rain24219292
200 mm (7.87 in): Days with 200 mm or more rain1120161
10 cm (3.9 in): Days with 10 cm or more snowfall26419801
25 cm (9.8 in): Days with 25 cm or more snowfall4119271

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 Rocky Mt 8 ESE 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 (2026-10-17).