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

Glasco Threshold Days by Year (USC00143088)

6 fixed thresholds counted per year at Glasco (USC00143088): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Glasco Thresholds

  • Glasco: days with 10 mm (0.39 in) or more of precipitation in 22 years, most in 1967 with 26.
  • Glasco: days with 25 mm (0.98 in) or more of precipitation in 22 years, most in 1962 with 11.
  • Glasco: days with 50 mm (1.97 in) or more of precipitation in 11 years, most in 1967 with 4.
  • Glasco: days with 100 mm (3.94 in) or more of precipitation in 3 years, most in 1967 with 2.
  • 6 fixed thresholds have at least one qualifying day at Glasco.
22 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Glasco Days per year at Glasco with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 26 in 1967. 0102030401959: 191960: 201961: 221962: 241963: 191964: 211965: 221966: 111967: 261968: 211969: 201971: 221993: 321994: 172017: 232018: 242019: 252020: 232021: 152023: 192024: 192025: 2019591962196519681993201820212025
Days per year at Glasco with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 26 in 1967.
Days with 10 mm (0.39 in) or more of precipitation per year at Glasco
YearDaysDecade average
19591919
19602020.6
19612220.6
19622420.6
19631920.6
19642120.6
19652220.6
19661120.6
19672620.6
19682120.6
19692020.6
19712222
19933224.5
19941724.5
20172324
20182424
20192524
20202319.2
20211519.2
20231919.2
20241919.2
20252019.2
First to last qualifying date each year at Glasco For each year, a bar from the first to the last day at Glasco meeting 10 mm (0.39 in). 1959: 26 March 1959 to 28 December 19591960: 13 January 1960 to 11 December 19601961: 13 March 1961 to 16 November 19611962: 26 January 1962 to 6 October 19621963: 11 March 1963 to 21 October 19631964: 20 March 1964 to 11 December 19641965: 23 January 1965 to 24 December 19651966: 9 February 1966 to 28 December 19661967: 1 April 1967 to 17 December 19671968: 3 April 1968 to 19 December 19681969: 24 March 1969 to 30 October 19691971: 3 January 1971 to 18 November 19711993: 9 January 1993 to 14 December 19931994: 27 January 1994 to 7 December 19942017: 29 March 2017 to 7 October 20172018: 2 May 2018 to 27 December 20182019: 17 January 2019 to 28 December 20192020: 22 January 2020 to 30 December 20202021: 25 January 2021 to 13 October 20212023: 19 January 2023 to 25 December 20232024: 9 January 2024 to 19 November 20242025: 6 January 2025 to 28 October 202519591962196519681993201820212025JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Glasco meeting 10 mm (0.39 in).
First to last qualifying date each year at Glasco
YearFirst dateLast date
19591959-03-261959-12-28
19601960-01-131960-12-11
19611961-03-131961-11-16
19621962-01-261962-10-06
19631963-03-111963-10-21
19641964-03-201964-12-11
19651965-01-231965-12-24
19661966-02-091966-12-28
19671967-04-011967-12-17
19681968-04-031968-12-19
19691969-03-241969-10-30
19711971-01-031971-11-18
19931993-01-091993-12-14
19941994-01-271994-12-07
20172017-03-292017-10-07
20182018-05-022018-12-27
20192019-01-172019-12-28
20202020-01-222020-12-30
20212021-01-252021-10-13
20232023-01-192023-12-25
20242024-01-092024-11-19
20252025-01-062025-10-28

Every Fixed Threshold

Fixed thresholds at Glasco
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain2226196720
25 mm (0.98 in): Days with 25 mm or more rain221119626
50 mm (1.97 in): Days with 50 mm or more rain11419671
100 mm (3.94 in): Days with 100 mm or more rain3219672
10 cm (3.9 in): Days with 10 cm or more snowfall3220252
25 cm (9.8 in): Days with 25 cm or more snowfall1120251

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1959.

Download the Data

  • Data for Glasco 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).