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Built 2026-10-19 (19 October 2026)

Columbia Lock Threshold Days by Year (USC00161979)

16 fixed thresholds counted per year at Columbia Lock (USC00161979): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Columbia Lock Thresholds

  • Columbia Lock: days with 10 mm (0.39 in) or more of precipitation in 54 years, most in 1974 with 60.
  • Columbia Lock: days with 25 mm (0.98 in) or more of precipitation in 54 years, most in 1991 with 32.
  • Columbia Lock: days with 50 mm (1.97 in) or more of precipitation in 52 years, most in 2020 with 15.
  • Columbia Lock: days with 100 mm (3.94 in) or more of precipitation in 30 years, most in 1991 with 4.
  • 16 fixed thresholds have at least one qualifying day at Columbia Lock.
26 years with a qualifying day
Days at or above 30 C (86 F) per year at Columbia Lock Days per year at Columbia Lock with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 156 in 2010. 0501001502002000: 1292001: 1102002: 1312003: 1362004: 1172005: 1352006: 1292007: 1262008: 1132009: 1162010: 1562011: 1482012: 1382013: 1252014: 1122015: 1332016: 1452017: 1172019: 1472020: 1222021: 1172022: 1222023: 1392024: 1112025: 1362026: 135200020032006200920122015201920222025
Days per year at Columbia Lock with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 156 in 2010.
Days at or above 30 C (86 F) per year at Columbia Lock
YearDaysDecade average
2000129124.2
2001110124.2
2002131124.2
2003136124.2
2004117124.2
2005135124.2
2006129124.2
2007126124.2
2008113124.2
2009116124.2
2010156135.7
2011148135.7
2012138135.7
2013125135.7
2014112135.7
2015133135.7
2016145135.7
2017117135.7
2019147135.7
2020122126
2021117126
2022122126
2023139126
2024111126
2025136126
2026135126
First to last qualifying date each year at Columbia Lock For each year, a bar from the first to the last day at Columbia Lock meeting 30 C (86 F). 2000: 19 April 2000 to 30 October 20002001: 6 April 2001 to 25 October 20012002: 18 April 2002 to 11 November 20022003: 14 April 2003 to 6 November 20032004: 21 March 2004 to 28 October 20042005: 30 April 2005 to 9 November 20052006: 12 March 2006 to 19 October 20062007: 29 March 2007 to 20 October 20072008: 19 March 2008 to 7 October 20082009: 23 April 2009 to 10 October 20092010: 2 May 2010 to 28 October 20102011: 27 March 2011 to 16 November 20112012: 24 February 2012 to 6 October 20122013: 10 April 2013 to 13 October 20132014: 27 April 2014 to 11 October 20142015: 27 April 2015 to 16 October 20152016: 16 March 2016 to 3 November 20162017: 22 March 2017 to 22 October 20172019: 11 April 2019 to 21 October 20192020: 27 March 2020 to 23 October 20202021: 29 April 2021 to 25 October 20212022: 25 April 2022 to 17 October 20222023: 7 May 2023 to 9 November 20232024: 15 March 2024 to 27 October 20242025: 28 March 2025 to 19 October 20252026: 23 March 2026 to 10 October 20262000200420082012201620212025JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Columbia Lock meeting 30 C (86 F).
First to last qualifying date each year at Columbia Lock
YearFirst dateLast date
20002000-04-192000-10-30
20012001-04-062001-10-25
20022002-04-182002-11-11
20032003-04-142003-11-06
20042004-03-212004-10-28
20052005-04-302005-11-09
20062006-03-122006-10-19
20072007-03-292007-10-20
20082008-03-192008-10-07
20092009-04-232009-10-10
20102010-05-022010-10-28
20112011-03-272011-11-16
20122012-02-242012-10-06
20132013-04-102013-10-13
20142014-04-272014-10-11
20152015-04-272015-10-16
20162016-03-162016-11-03
20172017-03-222017-10-22
20192019-04-112019-10-21
20202020-03-272020-10-23
20212021-04-292021-10-25
20222022-04-252022-10-17
20232023-05-072023-11-09
20242024-03-152024-10-27
20252025-03-282025-10-19
20262026-03-232026-10-10

Every Fixed Threshold

Fixed thresholds at Columbia Lock
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days261562010135
35 C (95 F): Days2678201157
40 C (104 F): Days71020231
90 F (32.2 C): Days261322010103
100 F (37.8 C): Days1627201111
0 C (32 F): Ice days (max12620214
0 C (32 F): Frost days (min2652200325
-10 C (14 F): Days with min3220212
20 C (68 F): Tropical nights (min261312019132
25 C (77 F): Days with min212120118
10 mm (0.39 in): Days with 10 mm or more rain5460197423
25 mm (0.98 in): Days with 25 mm or more rain5432199111
50 mm (1.97 in): Days with 50 mm or more rain521520202
100 mm (3.94 in): Days with 100 mm or more rain30419911
200 mm (7.87 in): Days with 200 mm or more rain2119741
10 cm (3.9 in): Days with 10 cm or more snowfall1120211

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 2000.

Download the Data

  • Data for Columbia Lock 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).