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Built 2026-10-19 (19 October 2026)

Lookingglass Threshold Days by Year (USC00355026)

5 fixed thresholds counted per year at Lookingglass (USC00355026): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Lookingglass Thresholds

  • Lookingglass: days with 10 mm (0.39 in) or more of precipitation in 36 years, most in 1996 with 53.
  • Lookingglass: days with 25 mm (0.98 in) or more of precipitation in 36 years, most in 1996 with 13.
  • Lookingglass: days with 50 mm (1.97 in) or more of precipitation in 16 years, most in 1996 with 4.
  • Lookingglass: days with 100 mm (3.94 in) or more of precipitation in 3 years, most in 1981 with 1.
  • 5 fixed thresholds have at least one qualifying day at Lookingglass.
36 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Lookingglass Days per year at Lookingglass with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 53 in 1996. 02040601979: 391980: 261981: 351982: 431986: 291987: 271988: 311989: 221990: 251991: 251992: 321993: 361995: 351996: 531997: 291998: 431999: 352000: 252001: 182002: 252003: 262004: 242005: 342006: 412007: 272008: 282009: 182010: 382011: 252012: 372014: 282015: 272017: 322023: 172024: 402026: 8197919861990199519992003200720112017
Days per year at Lookingglass with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 53 in 1996.
Days with 10 mm (0.39 in) or more of precipitation per year at Lookingglass
YearDaysDecade average
19793939
19802630.4
19813530.4
19824330.4
19862930.4
19872730.4
19883130.4
19892230.4
19902534.8
19912534.8
19923234.8
19933634.8
19953534.8
19965334.8
19972934.8
19984334.8
19993534.8
20002526.6
20011826.6
20022526.6
20032626.6
20042426.6
20053426.6
20064126.6
20072726.6
20082826.6
20091826.6
20103831.2
20112531.2
20123731.2
20142831.2
20152731.2
20173231.2
20231721.7
20244021.7
2026821.7
First to last qualifying date each year at Lookingglass For each year, a bar from the first to the last day at Lookingglass meeting 10 mm (0.39 in). 1979: 10 January 1979 to 31 December 19791980: 5 January 1980 to 6 December 19801981: 29 January 1981 to 30 December 19811982: 2 January 1982 to 23 December 19821986: 1 January 1986 to 30 November 19861987: 1 January 1987 to 16 December 19871988: 9 January 1988 to 30 December 19881989: 10 January 1989 to 25 November 19891990: 7 January 1990 to 19 December 19901991: 10 January 1991 to 19 December 19911992: 4 January 1992 to 31 December 19921993: 4 January 1993 to 28 December 19931995: 8 January 1995 to 30 December 19951996: 8 January 1996 to 31 December 19961997: 1 January 1997 to 17 December 19971998: 2 January 1998 to 29 December 19981999: 15 January 1999 to 8 December 19992000: 2 January 2000 to 22 December 20002001: 2 March 2001 to 31 December 20012002: 6 January 2002 to 31 December 20022003: 3 January 2003 to 29 December 20032004: 1 January 2004 to 9 December 20042005: 8 January 2005 to 31 December 20052006: 1 January 2006 to 27 December 20062007: 3 January 2007 to 30 December 20072008: 4 January 2008 to 30 December 20082009: 2 January 2009 to 31 December 20092010: 1 January 2010 to 29 December 20102011: 16 January 2011 to 30 December 20112012: 18 January 2012 to 24 December 20122014: 11 January 2014 to 25 December 20142015: 16 January 2015 to 30 December 20152017: 8 January 2017 to 20 December 20172023: 14 January 2023 to 7 December 20232024: 6 January 2024 to 30 December 20242026: 4 January 2026 to 22 April 202619791987199219982003200820142026JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Lookingglass meeting 10 mm (0.39 in).
First to last qualifying date each year at Lookingglass
YearFirst dateLast date
19791979-01-101979-12-31
19801980-01-051980-12-06
19811981-01-291981-12-30
19821982-01-021982-12-23
19861986-01-011986-11-30
19871987-01-011987-12-16
19881988-01-091988-12-30
19891989-01-101989-11-25
19901990-01-071990-12-19
19911991-01-101991-12-19
19921992-01-041992-12-31
19931993-01-041993-12-28
19951995-01-081995-12-30
19961996-01-081996-12-31
19971997-01-011997-12-17
19981998-01-021998-12-29
19991999-01-151999-12-08
20002000-01-022000-12-22
20012001-03-022001-12-31
20022002-01-062002-12-31
20032003-01-032003-12-29
20042004-01-012004-12-09
20052005-01-082005-12-31
20062006-01-012006-12-27
20072007-01-032007-12-30
20082008-01-042008-12-30
20092009-01-022009-12-31
20102010-01-012010-12-29
20112011-01-162011-12-30
20122012-01-182012-12-24
20142014-01-112014-12-25
20152015-01-162015-12-30
20172017-01-082017-12-20
20232023-01-142023-12-07
20242024-01-062024-12-30
20262026-01-042026-04-22

Every Fixed Threshold

Fixed thresholds at Lookingglass
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain365319968
25 mm (0.98 in): Days with 25 mm or more rain361319961
50 mm (1.97 in): Days with 50 mm or more rain16419961
100 mm (3.94 in): Days with 100 mm or more rain3119811
10 cm (3.9 in): Days with 10 cm or more snowfall1119891

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1979.

Download the Data

  • Data for Lookingglass 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 (2026-10-12).