Daily records
Page built 2026-10-19
Data as of 2025-12-31
Search
Built 2026-10-19 (19 October 2026)

Grand Gorge Threshold Days by Year (USC00303373)

7 fixed thresholds counted per year at Grand Gorge (USC00303373): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Grand Gorge Thresholds

  • Grand Gorge: days with 10 mm (0.39 in) or more of precipitation in 28 years, most in 1972 with 45.
  • Grand Gorge: days with 25 mm (0.98 in) or more of precipitation in 28 years, most in 1955 with 12.
  • Grand Gorge: days with 10 cm (3.9 in) or more of snowfall in 17 years, most in 1974 with 10.
  • Grand Gorge: days with 50 mm (1.97 in) or more of precipitation in 15 years, most in 1960 with 3.
  • 7 fixed thresholds have at least one qualifying day at Grand Gorge.
28 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Grand Gorge Days per year at Grand Gorge with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 45 in 1972. 02040601949: 241950: 321951: 421952: 381953: 431954: 371955: 351956: 321957: 291958: 391959: 281960: 301961: 291962: 271963: 231964: 201965: 211966: 261967: 341968: 291969: 271970: 261971: 271972: 451973: 371974: 381975: 331976: 371949195219551958196119641967197019731976
Days per year at Grand Gorge with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 45 in 1972.
Days with 10 mm (0.39 in) or more of precipitation per year at Grand Gorge
YearDaysDecade average
19492424
19503235.5
19514235.5
19523835.5
19534335.5
19543735.5
19553535.5
19563235.5
19572935.5
19583935.5
19592835.5
19603026.6
19612926.6
19622726.6
19632326.6
19642026.6
19652126.6
19662626.6
19673426.6
19682926.6
19692726.6
19702634.7
19712734.7
19724534.7
19733734.7
19743834.7
19753334.7
19763734.7
First to last qualifying date each year at Grand Gorge For each year, a bar from the first to the last day at Grand Gorge meeting 10 mm (0.39 in). 1949: 1 January 1949 to 13 December 19491950: 6 January 1950 to 11 December 19501951: 1 February 1951 to 31 December 19511952: 18 January 1952 to 22 December 19521953: 9 January 1953 to 14 December 19531954: 6 January 1954 to 30 December 19541955: 2 January 1955 to 4 December 19551956: 9 January 1956 to 29 December 19561957: 23 January 1957 to 27 December 19571958: 15 January 1958 to 29 November 19581959: 22 January 1959 to 29 December 19591960: 3 January 1960 to 30 November 19601961: 2 January 1961 to 25 November 19611962: 7 January 1962 to 7 December 19621963: 20 January 1963 to 9 December 19631964: 2 January 1964 to 28 December 19641965: 3 January 1965 to 26 December 19651966: 3 January 1966 to 25 December 19661967: 28 January 1967 to 29 December 19671968: 15 January 1968 to 29 December 19681969: 25 March 1969 to 27 December 19691970: 3 February 1970 to 17 December 19701971: 8 February 1971 to 31 December 19711972: 3 January 1972 to 22 December 19721973: 1 January 1973 to 27 December 19731974: 19 January 1974 to 17 December 19741975: 13 January 1975 to 21 December 19751976: 14 January 1976 to 8 December 19761949195319571961196519691973JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Grand Gorge meeting 10 mm (0.39 in).
First to last qualifying date each year at Grand Gorge
YearFirst dateLast date
19491949-01-011949-12-13
19501950-01-061950-12-11
19511951-02-011951-12-31
19521952-01-181952-12-22
19531953-01-091953-12-14
19541954-01-061954-12-30
19551955-01-021955-12-04
19561956-01-091956-12-29
19571957-01-231957-12-27
19581958-01-151958-11-29
19591959-01-221959-12-29
19601960-01-031960-11-30
19611961-01-021961-11-25
19621962-01-071962-12-07
19631963-01-201963-12-09
19641964-01-021964-12-28
19651965-01-031965-12-26
19661966-01-031966-12-25
19671967-01-281967-12-29
19681968-01-151968-12-29
19691969-03-251969-12-27
19701970-02-031970-12-17
19711971-02-081971-12-31
19721972-01-031972-12-22
19731973-01-011973-12-27
19741974-01-191974-12-17
19751975-01-131975-12-21
19761976-01-141976-12-08

Every Fixed Threshold

Fixed thresholds at Grand Gorge
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain2845197237
25 mm (0.98 in): Days with 25 mm or more rain281219556
50 mm (1.97 in): Days with 50 mm or more rain15319601
100 mm (3.94 in): Days with 100 mm or more rain1119551
10 cm (3.9 in): Days with 10 cm or more snowfall171019745
25 cm (9.8 in): Days with 25 cm or more snowfall8419711
50 cm (19.7 in): Days with 50 cm or more snowfall1119641

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1949.

Download the Data

  • Data for Grand Gorge 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).