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Built 2026-10-19 (19 October 2026)

Morristown WFO Threshold Days by Year (USC00406272)

16 fixed thresholds counted per year at Morristown WFO (USC00406272): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Morristown WFO Thresholds

  • Morristown WFO: days with a maximum temperature at or above 30 C (86 F) in 31 years, most in 2019 with 93.
  • Morristown WFO: nights with a minimum temperature at or below 0 C (32 F) in 31 years, most in 2010 with 87.
  • Morristown WFO: nights with a minimum temperature at or above 20 C (68 F) in 31 years, most in 2018 with 78.
  • Morristown WFO: days with 10 mm (0.39 in) or more of precipitation in 31 years, most in 2009 with 56.
  • 16 fixed thresholds have at least one qualifying day at Morristown WFO.
31 years with a qualifying day
Days at or above 30 C (86 F) per year at Morristown WFO Days per year at Morristown WFO with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 93 in 2019. 02550751001996: 381997: 381998: 791999: 602000: 462001: 482002: 822003: 332004: 372005: 642006: 602007: 722008: 572009: 122010: 722011: 652012: 582013: 222014: 332015: 562016: 882017: 502018: 712019: 932020: 562021: 542022: 542023: 372024: 612025: 612026: 7019962000200420082012201620202024
Days per year at Morristown WFO with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 93 in 2019.
Days at or above 30 C (86 F) per year at Morristown WFO
YearDaysDecade average
19963853.8
19973853.8
19987953.8
19996053.8
20004651.1
20014851.1
20028251.1
20033351.1
20043751.1
20056451.1
20066051.1
20077251.1
20085751.1
20091251.1
20107260.8
20116560.8
20125860.8
20132260.8
20143360.8
20155660.8
20168860.8
20175060.8
20187160.8
20199360.8
20205656.1
20215456.1
20225456.1
20233756.1
20246156.1
20256156.1
20267056.1
First to last qualifying date each year at Morristown WFO For each year, a bar from the first to the last day at Morristown WFO meeting 30 C (86 F). 1996: 19 May 1996 to 23 August 19961997: 21 June 1997 to 19 September 19971998: 14 May 1998 to 28 September 19981999: 6 June 1999 to 12 September 19992000: 12 May 2000 to 20 September 20002001: 10 April 2001 to 9 September 20012002: 19 April 2002 to 19 September 20022003: 11 June 2003 to 2 September 20032004: 20 May 2004 to 23 September 20042005: 5 June 2005 to 25 September 20052006: 28 May 2006 to 18 September 20062007: 29 May 2007 to 8 October 20072008: 4 June 2008 to 14 September 20082009: 2 June 2009 to 15 August 20092010: 2 May 2010 to 24 September 20102011: 22 May 2011 to 3 September 20112012: 25 May 2012 to 7 September 20122013: 21 May 2013 to 11 September 20132014: 13 May 2014 to 6 September 20142015: 11 May 2015 to 8 September 20152016: 31 May 2016 to 19 October 20162017: 29 April 2017 to 7 October 20172018: 12 May 2018 to 8 October 20182019: 18 May 2019 to 5 October 20192020: 17 May 2020 to 13 September 20202021: 23 May 2021 to 30 August 20212022: 19 May 2022 to 21 September 20222023: 5 April 2023 to 7 September 20232024: 4 June 2024 to 23 September 20242025: 3 April 2025 to 21 September 20252026: 17 May 2026 to 2 October 202619962000200420082012201620202024JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Morristown WFO meeting 30 C (86 F).
First to last qualifying date each year at Morristown WFO
YearFirst dateLast date
19961996-05-191996-08-23
19971997-06-211997-09-19
19981998-05-141998-09-28
19991999-06-061999-09-12
20002000-05-122000-09-20
20012001-04-102001-09-09
20022002-04-192002-09-19
20032003-06-112003-09-02
20042004-05-202004-09-23
20052005-06-052005-09-25
20062006-05-282006-09-18
20072007-05-292007-10-08
20082008-06-042008-09-14
20092009-06-022009-08-15
20102010-05-022010-09-24
20112011-05-222011-09-03
20122012-05-252012-09-07
20132013-05-212013-09-11
20142014-05-132014-09-06
20152015-05-112015-09-08
20162016-05-312016-10-19
20172017-04-292017-10-07
20182018-05-122018-10-08
20192019-05-182019-10-05
20202020-05-172020-09-13
20212021-05-232021-08-30
20222022-05-192022-09-21
20232023-04-052023-09-07
20242024-06-042024-09-23
20252025-04-032025-09-21
20262026-05-172026-10-02

Every Fixed Threshold

Fixed thresholds at Morristown WFO
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days3193201970
35 C (95 F): Days12620125
90 F (32.2 C): Days2851201624
100 F (37.8 C): Days1320123
0 C (32 F): Ice days (max2927201010
0 C (32 F): Frost days (min3187201039
-10 C (14 F): Days with min271219965
-20 C (-4 F): Days with min1119961
20 C (68 F): Tropical nights (min3178201882
25 C (77 F): Days with min2119981
10 mm (0.39 in): Days with 10 mm or more rain3156200931
25 mm (0.98 in): Days with 25 mm or more rain3119202010
50 mm (1.97 in): Days with 50 mm or more rain25420191
100 mm (3.94 in): Days with 100 mm or more rain2119971
10 cm (3.9 in): Days with 10 cm or more snowfall10319961
25 cm (9.8 in): Days with 25 cm or more snowfall1119961

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1996.

Download the Data

  • Data for Morristown WFO 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).