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Built 2026-10-19 (19 October 2026)

N Adams Harriman AP Threshold Days by Year (USW00054768)

12 fixed thresholds counted per year at N Adams Harriman AP (USW00054768): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for N Adams Harriman AP Thresholds

  • N Adams Harriman AP: days with a maximum temperature at or above 30 C (86 F) in 29 years, most in 2022 with 35.
  • N Adams Harriman AP: days with a maximum temperature at or below 0 C (32 F) in 29 years, most in 2003 with 60.
  • N Adams Harriman AP: nights with a minimum temperature at or below 0 C (32 F) in 29 years, most in 1997 with 166.
  • N Adams Harriman AP: nights with a minimum temperature at or below -10 C (14 F) in 29 years, most in 2003 with 58.
  • 12 fixed thresholds have at least one qualifying day at N Adams Harriman AP.
29 years with a qualifying day
Days at or above 30 C (86 F) per year at N Adams Harriman AP Days per year at N Adams Harriman AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 35 in 2022. 0102030401997: 151998: 121999: 242000: 52001: 192002: 262003: 82004: 82005: 302006: 182007: 232008: 162009: 112010: 332011: 152012: 262013: 182014: 112015: 182016: 192017: 142018: 272019: 142020: 302021: 292022: 352023: 252024: 232026: 121997200020032006200920122015201820212024
Days per year at N Adams Harriman AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 35 in 2022.
Days at or above 30 C (86 F) per year at N Adams Harriman AP
YearDaysDecade average
19971517
19981217
19992417
2000516.4
20011916.4
20022616.4
2003816.4
2004816.4
20053016.4
20061816.4
20072316.4
20081616.4
20091116.4
20103319.5
20111519.5
20122619.5
20131819.5
20141119.5
20151819.5
20161919.5
20171419.5
20182719.5
20191419.5
20203025.7
20212925.7
20223525.7
20232525.7
20242325.7
20261225.7
First to last qualifying date each year at N Adams Harriman AP For each year, a bar from the first to the last day at N Adams Harriman AP meeting 30 C (86 F). 1997: 10 June 1997 to 16 August 19971998: 31 March 1998 to 6 September 19981999: 31 May 1999 to 4 September 19992000: 7 May 2000 to 25 June 20002001: 2 May 2001 to 10 August 20012002: 16 April 2002 to 10 September 20022003: 23 June 2003 to 22 August 20032004: 19 April 2004 to 30 August 20042005: 6 June 2005 to 14 September 20052006: 30 May 2006 to 7 August 20062007: 9 May 2007 to 26 September 20072008: 7 June 2008 to 14 September 20082009: 25 April 2009 to 21 August 20092010: 7 April 2010 to 24 September 20102011: 27 May 2011 to 1 August 20112012: 16 April 2012 to 31 August 20122013: 31 May 2013 to 11 September 20132014: 3 June 2014 to 6 September 20142015: 8 May 2015 to 9 September 20152016: 26 May 2016 to 14 August 20162017: 11 April 2017 to 27 September 20172018: 2 May 2018 to 16 September 20182019: 28 June 2019 to 18 August 20192020: 26 May 2020 to 8 September 20202021: 20 May 2021 to 27 August 20212022: 12 May 2022 to 30 August 20222023: 14 April 2023 to 4 October 20232024: 21 May 2024 to 5 August 20242026: 18 May 2026 to 7 August 202619972001200520092013201720212026JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at N Adams Harriman AP meeting 30 C (86 F).
First to last qualifying date each year at N Adams Harriman AP
YearFirst dateLast date
19971997-06-101997-08-16
19981998-03-311998-09-06
19991999-05-311999-09-04
20002000-05-072000-06-25
20012001-05-022001-08-10
20022002-04-162002-09-10
20032003-06-232003-08-22
20042004-04-192004-08-30
20052005-06-062005-09-14
20062006-05-302006-08-07
20072007-05-092007-09-26
20082008-06-072008-09-14
20092009-04-252009-08-21
20102010-04-072010-09-24
20112011-05-272011-08-01
20122012-04-162012-08-31
20132013-05-312013-09-11
20142014-06-032014-09-06
20152015-05-082015-09-09
20162016-05-262016-08-14
20172017-04-112017-09-27
20182018-05-022018-09-16
20192019-06-282019-08-18
20202020-05-262020-09-08
20212021-05-202021-08-27
20222022-05-122022-08-30
20232023-04-142023-10-04
20242024-05-212024-08-05
20262026-05-182026-08-07

Every Fixed Threshold

Fixed thresholds at N Adams Harriman AP
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days2935202212
35 C (95 F): Days2120201
90 F (32.2 C): Days261520225
0 C (32 F): Ice days (max2960200328
0 C (32 F): Frost days (min29166199781
-10 C (14 F): Days with min2958200321
-20 C (-4 F): Days with min252120155
20 C (68 F): Tropical nights (min271620215
10 mm (0.39 in): Days with 10 mm or more rain2848202118
25 mm (0.98 in): Days with 25 mm or more rain281720215
50 mm (1.97 in): Days with 50 mm or more rain19420131
100 mm (3.94 in): Days with 100 mm or more rain3119991

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1997.

Download the Data

  • Data for N Adams Harriman AP 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).