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

Lanark Threshold Days by Year (USC00114879)

6 fixed thresholds counted per year at Lanark (USC00114879): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Lanark Thresholds

  • Lanark: days with 10 mm (0.39 in) or more of precipitation in 24 years, most in 2019 with 45.
  • Lanark: days with 25 mm (0.98 in) or more of precipitation in 24 years, most in 2009 with 17.
  • Lanark: days with 50 mm (1.97 in) or more of precipitation in 19 years, most in 2018 with 6.
  • Lanark: days with 10 cm (3.9 in) or more of snowfall in 11 years, most in 2008 with 5.
  • 6 fixed thresholds have at least one qualifying day at Lanark.
24 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Lanark Days per year at Lanark with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 45 in 2019. 02040601949: 241950: 192000: 262001: 332002: 222003: 242004: 212005: 172006: 252007: 342008: 402009: 412010: 362011: 392012: 232013: 332014: 222015: 352016: 292017: 302018: 382019: 452020: 332021: 1719492001200420072010201320162019
Days per year at Lanark with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 45 in 2019.
Days with 10 mm (0.39 in) or more of precipitation per year at Lanark
YearDaysDecade average
19492424
19501919
20002628.3
20013328.3
20022228.3
20032428.3
20042128.3
20051728.3
20062528.3
20073428.3
20084028.3
20094128.3
20103633
20113933
20122333
20133333
20142233
20153533
20162933
20173033
20183833
20194533
20203325
20211725
First to last qualifying date each year at Lanark For each year, a bar from the first to the last day at Lanark meeting 10 mm (0.39 in). 1949: 15 January 1949 to 31 December 19491950: 13 January 1950 to 8 November 19502000: 23 February 2000 to 6 November 20002001: 29 January 2001 to 12 December 20012002: 19 February 2002 to 18 December 20022003: 27 March 2003 to 9 December 20032004: 22 February 2004 to 6 December 20042005: 1 January 2005 to 27 November 20052006: 28 January 2006 to 20 December 20062007: 24 February 2007 to 23 December 20072008: 7 January 2008 to 27 December 20082009: 26 February 2009 to 24 December 20092010: 23 January 2010 to 20 December 20102011: 17 January 2011 to 13 December 20112012: 23 February 2012 to 21 December 20122013: 11 January 2013 to 6 November 20132014: 20 February 2014 to 24 November 20142015: 1 February 2015 to 28 December 20152016: 16 March 2016 to 5 December 20162017: 17 January 2017 to 24 October 20172018: 22 January 2018 to 28 December 20182019: 1 January 2019 to 29 December 20192020: 11 January 2020 to 30 December 20202021: 16 March 2021 to 29 October 202119492001200420072010201320162019JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Lanark meeting 10 mm (0.39 in).
First to last qualifying date each year at Lanark
YearFirst dateLast date
19491949-01-151949-12-31
19501950-01-131950-11-08
20002000-02-232000-11-06
20012001-01-292001-12-12
20022002-02-192002-12-18
20032003-03-272003-12-09
20042004-02-222004-12-06
20052005-01-012005-11-27
20062006-01-282006-12-20
20072007-02-242007-12-23
20082008-01-072008-12-27
20092009-02-262009-12-24
20102010-01-232010-12-20
20112011-01-172011-12-13
20122012-02-232012-12-21
20132013-01-112013-11-06
20142014-02-202014-11-24
20152015-02-012015-12-28
20162016-03-162016-12-05
20172017-01-172017-10-24
20182018-01-222018-12-28
20192019-01-012019-12-29
20202020-01-112020-12-30
20212021-03-162021-10-29

Every Fixed Threshold

Fixed thresholds at Lanark
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain2445201917
25 mm (0.98 in): Days with 25 mm or more rain241720097
50 mm (1.97 in): Days with 50 mm or more rain19620183
100 mm (3.94 in): Days with 100 mm or more rain4220101
10 cm (3.9 in): Days with 10 cm or more snowfall11520082
25 cm (9.8 in): Days with 25 cm or more snowfall2120081

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 Lanark 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).