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

Glenrose Threshold Days by Year

4 fixed thresholds counted per year at Glenrose (ASN00010831): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Glenrose Thresholds

  • Glenrose: days with 10 mm (0.39 in) or more of precipitation in 19 years, most in 2005 with 16.
  • Glenrose: days with 25 mm (0.98 in) or more of precipitation in 17 years, most in 2021 with 5.
  • Glenrose: days with 50 mm (1.97 in) or more of precipitation in 3 years, most in 2011 with 1.
  • Glenrose: days with 100 mm (3.94 in) or more of precipitation in 1 years, most in 2017 with 1.
  • 4 fixed thresholds have at least one qualifying day at Glenrose.
19 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Glenrose Days per year at Glenrose with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 16 in 2005. 051015202004: 132005: 162006: 112007: 122008: 92009: 92010: 82011: 152012: 122013: 152017: 112018: 82019: 112020: 102021: 152022: 152023: 122024: 122025: 112004200620082010201220172019202120232025
Days per year at Glenrose with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 16 in 2005.
Days with 10 mm (0.39 in) or more of precipitation per year at Glenrose
YearDaysDecade average
20041311.7
20051611.7
20061111.7
20071211.7
2008911.7
2009911.7
2010811.4
20111511.4
20121211.4
20131511.4
20171111.4
2018811.4
20191111.4
20201012.5
20211512.5
20221512.5
20231212.5
20241212.5
20251112.5
First to last qualifying date each year at Glenrose For each year, a bar from the first to the last day at Glenrose meeting 10 mm (0.39 in). 2004: 5 January 2004 to 3 November 20042005: 27 March 2005 to 27 November 20052006: 8 January 2006 to 23 August 20062007: 3 January 2007 to 19 December 20072008: 1 April 2008 to 11 December 20082009: 29 January 2009 to 11 September 20092010: 22 March 2010 to 13 August 20102011: 31 January 2011 to 31 December 20112012: 3 February 2012 to 14 December 20122013: 7 January 2013 to 20 October 20132017: 10 February 2017 to 26 September 20172018: 16 January 2018 to 2 October 20182019: 19 March 2019 to 12 October 20192020: 29 February 2020 to 10 November 20202021: 7 February 2021 to 22 November 20212022: 12 March 2022 to 8 December 20222023: 26 March 2023 to 14 September 20232024: 4 March 2024 to 3 October 20242025: 14 March 2025 to 23 November 20252004200720102013201920222025JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Glenrose meeting 10 mm (0.39 in).
First to last qualifying date each year at Glenrose
YearFirst dateLast date
20042004-01-052004-11-03
20052005-03-272005-11-27
20062006-01-082006-08-23
20072007-01-032007-12-19
20082008-04-012008-12-11
20092009-01-292009-09-11
20102010-03-222010-08-13
20112011-01-312011-12-31
20122012-02-032012-12-14
20132013-01-072013-10-20
20172017-02-102017-09-26
20182018-01-162018-10-02
20192019-03-192019-10-12
20202020-02-292020-11-10
20212021-02-072021-11-22
20222022-03-122022-12-08
20232023-03-262023-09-14
20242024-03-042024-10-03
20252025-03-142025-11-23

Every Fixed Threshold

Fixed thresholds at Glenrose
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain1916200511
25 mm (0.98 in): Days with 25 mm or more rain17520211
50 mm (1.97 in): Days with 50 mm or more rain3120111
100 mm (3.94 in): Days with 100 mm or more rain1120171

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 2004.

Download the Data

  • Data for Glenrose 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).