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Built 2026-10-19 (19 October 2026)

Niagara Falls Intl AP Threshold Days by Year (USW00004724)

14 fixed thresholds counted per year at Niagara Falls Intl AP (USW00004724): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Niagara Falls Intl AP Thresholds

  • Niagara Falls Intl AP: days with a maximum temperature at or above 30 C (86 F) in 36 years, most in 2016 with 51.
  • Niagara Falls Intl AP: days with a maximum temperature at or below 0 C (32 F) in 36 years, most in 1963 with 70.
  • Niagara Falls Intl AP: nights with a minimum temperature at or below 0 C (32 F) in 36 years, most in 2018 with 147.
  • Niagara Falls Intl AP: nights with a minimum temperature at or below -10 C (14 F) in 36 years, most in 2015 with 51.
  • 14 fixed thresholds have at least one qualifying day at Niagara Falls Intl AP.
36 years with a qualifying day
Days at or above 30 C (86 F) per year at Niagara Falls Intl AP Days per year at Niagara Falls Intl AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 51 in 2016. 02040601952: 291953: 221954: 101955: 381956: 81957: 91958: 71959: 291963: 131969: 201970: 182002: 302003: 82004: 22005: 462006: 182007: 242008: 102009: 72010: 252011: 232012: 312013: 112014: 92015: 162016: 512017: 232018: 352019: 112020: 302021: 252022: 312023: 142024: 282025: 302026: 3195219561963200320072011201520192023
Days per year at Niagara Falls Intl AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 51 in 2016.
Days at or above 30 C (86 F) per year at Niagara Falls Intl AP
YearDaysDecade average
19522919
19532219
19541019
19553819
1956819
1957919
1958719
19592919
19631316.5
19692016.5
19701818
20023018.1
2003818.1
2004218.1
20054618.1
20061818.1
20072418.1
20081018.1
2009718.1
20102523.5
20112323.5
20123123.5
20131123.5
2014923.5
20151623.5
20165123.5
20172323.5
20183523.5
20191123.5
20203023
20212523
20223123
20231423
20242823
20253023
2026323
First to last qualifying date each year at Niagara Falls Intl AP For each year, a bar from the first to the last day at Niagara Falls Intl AP meeting 30 C (86 F). 1952: 16 June 1952 to 14 September 19521953: 20 June 1953 to 4 September 19531954: 12 June 1954 to 24 August 19541955: 27 May 1955 to 17 September 19551956: 13 June 1956 to 17 August 19561957: 13 June 1957 to 3 August 19571958: 5 July 1958 to 14 August 19581959: 9 June 1959 to 28 September 19591963: 26 June 1963 to 28 July 19631969: 12 June 1969 to 5 September 19691970: 10 June 1970 to 24 September 19702002: 25 June 2002 to 20 September 20022003: 25 June 2003 to 21 August 20032004: 9 June 2004 to 4 July 20042005: 5 June 2005 to 26 August 20052006: 29 May 2006 to 6 August 20062007: 24 May 2007 to 25 September 20072008: 6 June 2008 to 14 September 20082009: 24 June 2009 to 20 August 20092010: 26 May 2010 to 24 September 20102011: 31 May 2011 to 3 September 20112012: 20 May 2012 to 3 September 20122013: 21 May 2013 to 11 September 20132014: 17 June 2014 to 5 September 20142015: 8 May 2015 to 8 September 20152016: 26 May 2016 to 10 September 20162017: 27 April 2017 to 27 September 20172018: 28 May 2018 to 21 September 20182019: 19 May 2019 to 20 August 20192020: 26 May 2020 to 24 August 20202021: 20 May 2021 to 29 August 20212022: 12 May 2022 to 3 September 20222023: 30 May 2023 to 6 September 20232024: 20 May 2024 to 15 September 20242025: 4 June 2025 to 16 August 20252026: 18 May 2026 to 5 August 202619521957197020062011201620212026JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Niagara Falls Intl AP meeting 30 C (86 F).
First to last qualifying date each year at Niagara Falls Intl AP
YearFirst dateLast date
19521952-06-161952-09-14
19531953-06-201953-09-04
19541954-06-121954-08-24
19551955-05-271955-09-17
19561956-06-131956-08-17
19571957-06-131957-08-03
19581958-07-051958-08-14
19591959-06-091959-09-28
19631963-06-261963-07-28
19691969-06-121969-09-05
19701970-06-101970-09-24
20022002-06-252002-09-20
20032003-06-252003-08-21
20042004-06-092004-07-04
20052005-06-052005-08-26
20062006-05-292006-08-06
20072007-05-242007-09-25
20082008-06-062008-09-14
20092009-06-242009-08-20
20102010-05-262010-09-24
20112011-05-312011-09-03
20122012-05-202012-09-03
20132013-05-212013-09-11
20142014-06-172014-09-05
20152015-05-082015-09-08
20162016-05-262016-09-10
20172017-04-272017-09-27
20182018-05-282018-09-21
20192019-05-192019-08-20
20202020-05-262020-08-24
20212021-05-202021-08-29
20222022-05-122022-09-03
20232023-05-302023-09-06
20242024-05-202024-09-15
20252025-06-042025-08-16
20262026-05-182026-08-05

Every Fixed Threshold

Fixed thresholds at Niagara Falls Intl AP
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days365120163
35 C (95 F): Days7320051
90 F (32.2 C): Days302320161
0 C (32 F): Ice days (max3670196337
0 C (32 F): Frost days (min36147201883
-10 C (14 F): Days with min3651201527
-20 C (-4 F): Days with min14920151
20 C (68 F): Tropical nights (min3634201612
25 C (77 F): Days with min6220161
10 mm (0.39 in): Days with 10 mm or more rain353819569
25 mm (0.98 in): Days with 25 mm or more rain321020175
50 mm (1.97 in): Days with 50 mm or more rain16519541
10 cm (3.9 in): Days with 10 cm or more snowfall12920109
25 cm (9.8 in): Days with 25 cm or more snowfall2320103

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1952.

Download the Data

  • Data for Niagara Falls Intl 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).