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Built 2026-10-19 (19 October 2026)

Lamont Threshold Days by Year

6 fixed thresholds counted per year at Lamont (USC00345013): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Lamont Thresholds

  • Lamont: days with 10 mm (0.39 in) or more of precipitation in 34 years, most in 2007 with 43.
  • Lamont: days with 25 mm (0.98 in) or more of precipitation in 34 years, most in 2017 with 16.
  • Lamont: days with 50 mm (1.97 in) or more of precipitation in 31 years, most in 1999 with 7.
  • Lamont: days with 10 cm (3.9 in) or more of snowfall in 14 years, most in 2002 with 2.
  • 6 fixed thresholds have at least one qualifying day at Lamont.
34 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Lamont Days per year at Lamont with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 43 in 2007. 02040601993: 291994: 221995: 291996: 251997: 251998: 341999: 392000: 272001: 182002: 302003: 142004: 332005: 212006: 172007: 432008: 312009: 242010: 252011: 212012: 172013: 272014: 212015: 282016: 232017: 292018: 252019: 292020: 252021: 252022: 232023: 352024: 172025: 312026: 23199319972001200520092013201720212025
Days per year at Lamont with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 43 in 2007.
Days with 10 mm (0.39 in) or more of precipitation per year at Lamont
YearDaysDecade average
19932929
19942229
19952929
19962529
19972529
19983429
19993929
20002725.8
20011825.8
20023025.8
20031425.8
20043325.8
20052125.8
20061725.8
20074325.8
20083125.8
20092425.8
20102524.5
20112124.5
20121724.5
20132724.5
20142124.5
20152824.5
20162324.5
20172924.5
20182524.5
20192924.5
20202525.6
20212525.6
20222325.6
20233525.6
20241725.6
20253125.6
20262325.6
First to last qualifying date each year at Lamont For each year, a bar from the first to the last day at Lamont meeting 10 mm (0.39 in). 1993: 9 January 1993 to 14 December 19931994: 9 March 1994 to 20 November 19941995: 13 March 1995 to 18 December 19951996: 14 March 1996 to 1 December 19961997: 21 February 1997 to 24 December 19971998: 4 January 1998 to 7 December 19981999: 29 January 1999 to 9 December 19992000: 25 February 2000 to 26 December 20002001: 28 January 2001 to 19 November 20012002: 31 January 2002 to 24 December 20022003: 19 March 2003 to 9 October 20032004: 17 January 2004 to 24 November 20042005: 5 January 2005 to 31 October 20052006: 10 January 2006 to 20 December 20062007: 15 January 2007 to 24 December 20072008: 8 January 2008 to 27 December 20082009: 24 March 2009 to 25 December 20092010: 29 January 2010 to 13 November 20102011: 9 February 2011 to 20 December 20112012: 25 January 2012 to 11 November 20122013: 13 February 2013 to 22 December 20132014: 3 March 2014 to 4 November 20142015: 1 February 2015 to 27 December 20152016: 2 February 2016 to 26 October 20162017: 15 January 2017 to 22 October 20172018: 20 February 2018 to 27 December 20182019: 12 January 2019 to 29 December 20192020: 29 January 2020 to 30 December 20202021: 1 January 2021 to 3 November 20212022: 2 February 2022 to 13 December 20222023: 25 January 2023 to 24 December 20232024: 5 January 2024 to 18 November 20242025: 10 January 2025 to 29 October 20252026: 9 January 2026 to 15 October 20261993199820032008201320182023JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Lamont meeting 10 mm (0.39 in).
First to last qualifying date each year at Lamont
YearFirst dateLast date
19931993-01-091993-12-14
19941994-03-091994-11-20
19951995-03-131995-12-18
19961996-03-141996-12-01
19971997-02-211997-12-24
19981998-01-041998-12-07
19991999-01-291999-12-09
20002000-02-252000-12-26
20012001-01-282001-11-19
20022002-01-312002-12-24
20032003-03-192003-10-09
20042004-01-172004-11-24
20052005-01-052005-10-31
20062006-01-102006-12-20
20072007-01-152007-12-24
20082008-01-082008-12-27
20092009-03-242009-12-25
20102010-01-292010-11-13
20112011-02-092011-12-20
20122012-01-252012-11-11
20132013-02-132013-12-22
20142014-03-032014-11-04
20152015-02-012015-12-27
20162016-02-022016-10-26
20172017-01-152017-10-22
20182018-02-202018-12-27
20192019-01-122019-12-29
20202020-01-292020-12-30
20212021-01-012021-11-03
20222022-02-022022-12-13
20232023-01-252023-12-24
20242024-01-052024-11-18
20252025-01-102025-10-29
20262026-01-092026-10-15

Every Fixed Threshold

Fixed thresholds at Lamont
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain3443200723
25 mm (0.98 in): Days with 25 mm or more rain341620179
50 mm (1.97 in): Days with 50 mm or more rain31719994
100 mm (3.94 in): Days with 100 mm or more rain7119971
10 cm (3.9 in): Days with 10 cm or more snowfall14220021
25 cm (9.8 in): Days with 25 cm or more snowfall3119991

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1993.

Download the Data

  • Data for Lamont 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 (2026-10-17).