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Built 2026-10-19 (19 October 2026)

Manhattan ASOS Threshold Days by Year (USW00003936)

18 fixed thresholds counted per year at Manhattan ASOS (USW00003936): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Manhattan ASOS Thresholds

  • Manhattan ASOS: days with a maximum temperature at or above 30 C (86 F) in 34 years, most in 2023 with 114.
  • Manhattan ASOS: days with a maximum temperature at or above 35 C (95 F) in 34 years, most in 2000 with 58.
  • Manhattan ASOS: days with a maximum temperature at or above 90 F (32.2 C) in 34 years, most in 2000 with 84.
  • Manhattan ASOS: days with a maximum temperature at or below 0 C (32 F) in 34 years, most in 1963 with 36.
  • 18 fixed thresholds have at least one qualifying day at Manhattan ASOS.
34 years with a qualifying day
Days at or above 30 C (86 F) per year at Manhattan ASOS Days per year at Manhattan ASOS with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 114 in 2023. 0501001501961: 671962: 981963: 1041964: 691997: 791998: 931999: 722000: 1032001: 832002: 992003: 792004: 712005: 902006: 872007: 882008: 582009: 562010: 932011: 922012: 1112013: 832014: 892015: 832016: 912017: 832018: 1122019: 932020: 912021: 1002022: 1082023: 1142024: 1012025: 852026: 106196119972001200520092013201720212025
Days per year at Manhattan ASOS with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 114 in 2023.
Days at or above 30 C (86 F) per year at Manhattan ASOS
YearDaysDecade average
19616784.5
19629884.5
196310484.5
19646984.5
19977981.3
19989381.3
19997281.3
200010381.4
20018381.4
20029981.4
20037981.4
20047181.4
20059081.4
20068781.4
20078881.4
20085881.4
20095681.4
20109393
20119293
201211193
20138393
20148993
20158393
20169193
20178393
201811293
20199393
202091100.7
2021100100.7
2022108100.7
2023114100.7
2024101100.7
202585100.7
2026106100.7
First to last qualifying date each year at Manhattan ASOS For each year, a bar from the first to the last day at Manhattan ASOS meeting 30 C (86 F). 1961: 19 April 1961 to 10 September 19611962: 20 April 1962 to 14 October 19621963: 16 April 1963 to 14 October 19631964: 16 April 1964 to 9 September 19641997: 18 April 1997 to 6 October 19971998: 13 May 1998 to 28 September 19981999: 9 May 1999 to 27 October 19992000: 5 April 2000 to 18 October 20002001: 20 April 2001 to 13 September 20012002: 14 April 2002 to 1 October 20022003: 2 April 2003 to 20 October 20032004: 16 April 2004 to 28 September 20042005: 10 May 2005 to 18 October 20052006: 13 April 2006 to 7 October 20062007: 29 April 2007 to 7 October 20072008: 17 May 2008 to 28 September 20082009: 24 April 2009 to 27 September 20092010: 5 April 2010 to 8 October 20102011: 3 April 2011 to 5 October 20112012: 31 March 2012 to 23 October 20122013: 15 March 2013 to 4 October 20132014: 12 April 2014 to 26 October 20142015: 16 March 2015 to 11 October 20152016: 5 April 2016 to 17 October 20162017: 19 March 2017 to 6 October 20172018: 12 April 2018 to 3 October 20182019: 10 April 2019 to 1 October 20192020: 7 April 2020 to 11 October 20202021: 26 April 2021 to 9 October 20212022: 12 April 2022 to 23 October 20222023: 4 April 2023 to 23 October 20232024: 13 April 2024 to 28 October 20242025: 27 March 2025 to 15 October 20252026: 19 March 2026 to 12 October 20261961199820032008201320182023JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Manhattan ASOS meeting 30 C (86 F).
First to last qualifying date each year at Manhattan ASOS
YearFirst dateLast date
19611961-04-191961-09-10
19621962-04-201962-10-14
19631963-04-161963-10-14
19641964-04-161964-09-09
19971997-04-181997-10-06
19981998-05-131998-09-28
19991999-05-091999-10-27
20002000-04-052000-10-18
20012001-04-202001-09-13
20022002-04-142002-10-01
20032003-04-022003-10-20
20042004-04-162004-09-28
20052005-05-102005-10-18
20062006-04-132006-10-07
20072007-04-292007-10-07
20082008-05-172008-09-28
20092009-04-242009-09-27
20102010-04-052010-10-08
20112011-04-032011-10-05
20122012-03-312012-10-23
20132013-03-152013-10-04
20142014-04-122014-10-26
20152015-03-162015-10-11
20162016-04-052016-10-17
20172017-03-192017-10-06
20182018-04-122018-10-03
20192019-04-102019-10-01
20202020-04-072020-10-11
20212021-04-262021-10-09
20222022-04-122022-10-23
20232023-04-042023-10-23
20242024-04-132024-10-28
20252025-03-272025-10-15
20262026-03-192026-10-12

Every Fixed Threshold

Fixed thresholds at Manhattan ASOS
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days341142023106
35 C (95 F): Days3458200026
40 C (104 F): Days251620001
45 C (113 F): Days1120231
90 F (32.2 C): Days3484200065
100 F (37.8 C): Days3232200012
110 F (43.3 C): Days3220001
0 C (32 F): Ice days (max3436196310
0 C (32 F): Frost days (min34145200270
-10 C (14 F): Days with min3446196315
-20 C (-4 F): Days with min241319633
20 C (68 F): Tropical nights (min3462201663
25 C (77 F): Days with min32919647
10 mm (0.39 in): Days with 10 mm or more rain3235201930
25 mm (0.98 in): Days with 25 mm or more rain3213201911
50 mm (1.97 in): Days with 50 mm or more rain28420053
100 mm (3.94 in): Days with 100 mm or more rain4119621
10 cm (3.9 in): Days with 10 cm or more snowfall3119611

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1961.

Download the Data

  • Data for Manhattan ASOS 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).