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Niagara Falls Weather Records (USC00305840)

Record envelope, standing records and threshold days for Niagara Falls (USC00305840), New York, United States, with 38 years of record.

Key Facts for Niagara Falls

  • Niagara Falls (USC00305840) is a weather station in New York, United States at 43.09 latitude and -78.97 longitude, 179 m (588 ft) above sea level.
  • The station reports from 1989 to 2026, 38 years of record.
  • 1,464 records set at Niagara Falls still stand.
  • Records are tracked for tmax, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Niagara Falls set a daily record precipitation of 16.8 mm (0.7 in) on 19 August 2026 (provisional).

Provisional Records

Records set in the last 60 days are provisional until they clear the revision window.

About the Station

  • Location: New York, United States, 43.09 latitude, -78.97 longitude.
  • Elevation: 179 m (588 ft).
  • Period of record: 1989 to 2026, 38 years.
  • Eligible elements: tmax, prcp, snow, snwd.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Niagara Falls, with 2026 drawn through them The band shows the record high and record low for each calendar day at Niagara Falls. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -40-2002040 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Niagara Falls. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Niagara Falls, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan18.3 C (64.9 F)-26.1 C (-15.0 F)n/an/a
Feb21.1 C (70.0 F)-25.0 C (-13.0 F)n/an/a
Mar27.2 C (81.0 F)-22.8 C (-9.0 F)n/an/a
Apr33.9 C (93.0 F)-10.0 C (14.0 F)n/an/a
May33.9 C (93.0 F)-2.2 C (28.0 F)n/an/a
Jun35.0 C (95.0 F)3.3 C (37.9 F)n/an/a
Jul36.1 C (97.0 F)6.7 C (44.1 F)n/an/a
Aug35.0 C (95.0 F)6.7 C (44.1 F)n/an/a
Sep33.9 C (93.0 F)-3.3 C (26.1 F)n/an/a
Oct29.4 C (84.9 F)-4.4 C (24.1 F)n/an/a
Nov22.2 C (72.0 F)-13.9 C (7.0 F)n/an/a
Dec22.2 C (72.0 F)-21.7 C (-7.1 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Niagara Falls by the year they were set 1,464 records at Niagara Falls still stand. 2015 holds the most, with 77. 0204060801989: 411990: 451991: 521992: 601993: 451994: 431995: 341996: 411997: 401998: 471999: 532000: 642001: 362002: 582003: 312004: 402005: 552006: 412007: 362008: 372009: 322010: 382011: 572012: 512013: 522014: 492015: 772016: 612017: 682018: 572019: 2319891993199720012005200920132017
1,464 records at Niagara Falls still stand. 2015 holds the most, with 77.
Standing records at Niagara Falls by the year they were set
Year setStanding records
198941
199045
199152
199260
199345
199443
199534
199641
199740
199847
199953
200064
200136
200258
200331
200440
200555
200641
200736
200837
200932
201038
201157
201251
201352
201449
201577
201661
201768
201857
201923

All-Time Record Progression

1 new records
When Niagara Falls set new all-time records 1 all-time records were set at Niagara Falls between 17 January 2022 and 17 January 2022. Each dot is a new record. Record daily snowfall17 January 2022: Record daily snowfall 43.2 cm (17.0 in)
1 all-time records were set at Niagara Falls between 17 January 2022 and 17 January 2022. Each dot is a new record.
When Niagara Falls set new all-time records
DateKindDetail
2022-01-17Record daily snowfallRecord daily snowfall 43.2 cm (17.0 in)

Wettest Day of Each Month

Jul: 102.4 mm (4.0 in)
Record daily precipitation for each month at Niagara Falls The wettest day on record for each calendar month at Niagara Falls. The most was 102.4 mm (4.0 in) on 20 July 2013. 050100150 Jan: 42.4 mm (1.7 in), 17 January 2022 Jan Feb: 31.0 mm (1.2 in), 15 February 1990 Feb Mar: 39.4 mm (1.6 in), 8 March 2009 Mar Apr: 47.0 mm (1.9 in), 7 April 2017 Apr May: 47.8 mm (1.9 in), 12 May 2000 May Jun: 62.5 mm (2.5 in), 26 June 2025 Jun Jul: 102.4 mm (4.0 in), 20 July 2013 Jul Aug: 79.0 mm (3.1 in), 3 August 2026 Aug Sep: 76.2 mm (3.0 in), 9 September 2004 Sep Oct: 48.5 mm (1.9 in), 29 October 2015 Oct Nov: 69.9 mm (2.8 in), 2 November 1999 Nov Dec: 42.7 mm (1.7 in), 1 December 2006 Dec
The wettest day on record for each calendar month at Niagara Falls. The most was 102.4 mm (4.0 in) on 20 July 2013.
Record daily precipitation for each month at Niagara Falls
MonthRecord daily precipitation (mm)Date
Jan42.4 mm (1.7 in)17 January 2022
Feb31.0 mm (1.2 in)15 February 1990
Mar39.4 mm (1.6 in)8 March 2009
Apr47.0 mm (1.9 in)7 April 2017
May47.8 mm (1.9 in)12 May 2000
Jun62.5 mm (2.5 in)26 June 2025
Jul102.4 mm (4.0 in)20 July 2013
Aug79.0 mm (3.1 in)3 August 2026
Sep76.2 mm (3.0 in)9 September 2004
Oct48.5 mm (1.9 in)29 October 2015
Nov69.9 mm (2.8 in)2 November 1999
Dec42.7 mm (1.7 in)1 December 2006

Period of Record Coverage

1989 to 2019
Days with data per year at Niagara Falls 31 years of record at Niagara Falls, 1989 to 2019. 3 years have data for under 90 percent of days and are left out of rankings: 1989, 2007, 2019. 1989: 195 of 365 days1990: 330 of 365 days1991: 333 of 365 days1992: 335 of 366 days1993: 332 of 365 days1994: 335 of 365 days1995: 333 of 365 days1996: 334 of 366 days1997: 338 of 365 days1998: 340 of 365 days1999: 342 of 365 days2000: 336 of 366 days2001: 341 of 365 days2002: 336 of 365 days2003: 335 of 365 days2004: 333 of 366 days2005: 336 of 365 days2006: 344 of 365 days2007: 297 of 365 days2008: 354 of 366 days2009: 365 of 365 days2010: 364 of 365 days2011: 365 of 365 days2012: 366 of 366 days2013: 365 of 365 days2014: 365 of 365 days2015: 365 of 365 days2016: 365 of 366 days2017: 355 of 365 days2018: 365 of 365 days2019: 151 of 365 days199019952000200520102015
31 years of record at Niagara Falls, 1989 to 2019. 3 years have data for under 90 percent of days and are left out of rankings: 1989, 2007, 2019.
Days with data per year at Niagara Falls
YearDays with dataShare of yearComplete
198919553%No
199033090%Yes
199133391%Yes
199233592%Yes
199333291%Yes
199433592%Yes
199533391%Yes
199633491%Yes
199733893%Yes
199834093%Yes
199934294%Yes
200033692%Yes
200134193%Yes
200233692%Yes
200333592%Yes
200433391%Yes
200533692%Yes
200634494%Yes
200729781%No
200835497%Yes
2009365100%Yes
2010364100%Yes
2011365100%Yes
2012366100%Yes
2013365100%Yes
2014365100%Yes
2015365100%Yes
2016365100%Yes
201735597%Yes
2018365100%Yes
201915141%No

Latest Records

20
Latest records at Niagara Falls
DateStationRecordValueBeat old record byOld record stoodSignificance
19 August 2026Niagara Falls, USdaily rain (Provisional)16.8 mm (0.7 in)0.8 mm (0.03 in)24 years10 of 100 (Routine)
3 August 2026Niagara Falls, USmonthly rain79.0 mm (3.1 in)13.7 mm (0.5 in)16 years33 of 100 (Routine)
22 July 2026Niagara Falls, USdaily rain66.8 mm (2.6 in)43.7 mm (1.7 in)8 years40 of 100 (Notable)
15 June 2026Niagara Falls, USdaily rain30.5 mm (1.2 in)4.6 mm (0.18 in)25 years15 of 100 (Routine)
24 May 2026Niagara Falls, USdaily rain39.4 mm (1.6 in)21.1 mm (0.8 in)21 years36 of 100 (Notable)
19 April 2026Niagara Falls, USdaily rain14.0 mm (0.6 in)1.0 mm (0.04 in)28 years12 of 100 (Routine)
16 April 2026Niagara Falls, USdaily rain38.6 mm (1.5 in)3.5 mm (0.14 in)33 years17 of 100 (Routine)
1 April 2026Niagara Falls, USdaily rain28.4 mm (1.1 in)2.2 mm (0.09 in)3 years5 of 100 (Routine)
21 March 2026Niagara Falls, USdaily rain20.1 mm (0.8 in)1.8 mm (0.07 in)28 years14 of 100 (Routine)
12 March 2026Niagara Falls, USdaily rain22.1 mm (0.9 in)13.0 mm (0.5 in)25 years20 of 100 (Routine)
19 February 2026Niagara Falls, USdaily rain18.5 mm (0.7 in)9.6 mm (0.38 in)35 years20 of 100 (Routine)
8 February 2026Niagara Falls, USdaily snow depth (Tie)33.0 cm (13.0 in)tie4 years1 of 100 (Routine)
2 February 2026Niagara Falls, USdaily snow depth30.5 cm (12.0 in)2.6 cm (1.0 in)22 years11 of 100 (Routine)
1 February 2026Niagara Falls, USdaily snow depth33.0 cm (13.0 in)2.5 cm (1.0 in)22 years11 of 100 (Routine)
31 January 2026Niagara Falls, USdaily snow depth30.5 cm (12.0 in)2.6 cm (1.0 in)16 years10 of 100 (Routine)
30 January 2026Niagara Falls, USdaily snow depth (Tie)30.5 cm (12.0 in)tie16 years2 of 100 (Routine)
29 January 2026Niagara Falls, USdaily snow depth (Tie)30.5 cm (12.0 in)tie22 years2 of 100 (Routine)
26 January 2026Niagara Falls, USdaily snowfall18.0 cm (7.1 in)5.0 cm (2.0 in)23 years18 of 100 (Routine)
26 January 2026Niagara Falls, USdaily snow depth (Tie)33.0 cm (13.0 in)tie20 years2 of 100 (Routine)
16 January 2026Niagara Falls, USdaily snowfall14.5 cm (5.7 in)6.6 cm (2.6 in)20 years22 of 100 (Routine)

Climate Trend

23 complete years, 1990 to 2018
Annual mean temperature at Niagara Falls as warming stripes, 1990 to 2018 One stripe for each of 23 complete years at Niagara Falls, 1990 to 2018. Blue stripes are years cooler than the station's own mean of 9.2 C (48.5 F); red stripes are warmer. The coolest year was 2014, at 7.7 C (45.9 F), and the warmest was 2016, at 10.8 C (51.4 F). The strongest colour marks a difference of 1.7 C (3.1 F). 1990: 9.6 C, +0.5 C from the station mean1991: 10.2 C, +1.0 C from the station mean1992: 8.1 C, -1.1 C from the station mean1993: 8.2 C, -1.0 C from the station mean1994: 8.4 C, -0.7 C from the station mean1996: 8.4 C, -0.7 C from the station mean1997: 8.7 C, -0.5 C from the station mean1998: 10.7 C, +1.6 C from the station mean1999: 9.6 C, +0.4 C from the station mean2000: 8.1 C, -1.1 C from the station mean2003: 7.9 C, -1.3 C from the station mean2005: 9.2 C, +0.1 C from the station mean2006: 9.8 C, +0.7 C from the station mean2009: 8.4 C, -0.8 C from the station mean2010: 9.6 C, +0.4 C from the station mean2011: 9.4 C, +0.3 C from the station mean2012: 10.6 C, +1.4 C from the station mean2013: 8.6 C, -0.6 C from the station mean2014: 7.7 C, -1.5 C from the station mean2015: 8.5 C, -0.6 C from the station mean2016: 10.8 C, +1.6 C from the station mean2017: 10.6 C, +1.4 C from the station mean2018: 9.7 C, +0.6 C from the station mean199019952000200520102015
One stripe for each of 23 complete years at Niagara Falls, 1990 to 2018. Blue stripes are years cooler than the station's own mean of 9.2 C (48.5 F); red stripes are warmer. The coolest year was 2014, at 7.7 C (45.9 F), and the warmest was 2016, at 10.8 C (51.4 F). The strongest colour marks a difference of 1.7 C (3.1 F).
Annual mean temperature at Niagara Falls as warming stripes, 1990 to 2018
YearAnnual mean temperatureDifference from the station mean
19909.6 C+0.46 C
199110.2 C+1.00 C
19928.1 C-1.11 C
19938.2 C-1.00 C
19948.4 C-0.73 C
19968.4 C-0.73 C
19978.7 C-0.51 C
199810.7 C+1.58 C
19999.6 C+0.40 C
20008.1 C-1.06 C
20037.9 C-1.30 C
20059.2 C+0.08 C
20069.8 C+0.67 C
20098.4 C-0.79 C
20109.6 C+0.39 C
20119.4 C+0.27 C
201210.6 C+1.43 C
20138.6 C-0.61 C
20147.7 C-1.46 C
20158.5 C-0.65 C
201610.8 C+1.63 C
201710.6 C+1.43 C
20189.7 C+0.56 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1989 to 2026
Yearly extremes at Niagara Falls: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)36.1 C (97.0 F)200533.3 C (91.9 F)31
Coldest night (TNn)-26.1 C (-15.0 F)1996-19.4 C (-2.9 F)31
Wettest day (Rx1day)102.4 mm (4.0 in)201346.1 mm (1.8 in)38
Wettest five days (Rx5day)150.6 mm (5.9 in)202169.3 mm (2.7 in)38
Longest dry spell (CDD)28 days201115 days38

Hottest day (TXx)

Hottest day (TXx) at Niagara Falls by year The hottest day of the year at Niagara Falls, 1989 to 2026. The record is 36.1 C (97.0 F) in 2005, marked on the chart; the median year is 33.3 C (91.9 F). 30323436381990200020102020Record: 36.1 C (97.0 F) in 2005
The hottest day of the year at Niagara Falls, 1989 to 2026. The record is 36.1 C (97.0 F) in 2005, marked on the chart; the median year is 33.3 C (91.9 F).
Hottest day (TXx) at Niagara Falls by year
YearHottest day (TXx)
198933.3 C (91.9 F)
199033.9 C (93.0 F)
199133.9 C (93.0 F)
199231.7 C (89.1 F)
199334.4 C (93.9 F)
199435.0 C (95.0 F)
199533.3 C (91.9 F)
199632.2 C (90.0 F)
199732.2 C (90.0 F)
199833.9 C (93.0 F)
199933.3 C (91.9 F)
200031.1 C (88.0 F)
200135.0 C (95.0 F)
200233.9 C (93.0 F)
200331.1 C (88.0 F)
200431.1 C (88.0 F)
200536.1 C (97.0 F)
200633.3 C (91.9 F)
200734.4 C (93.9 F)
200832.2 C (90.0 F)
200931.1 C (88.0 F)
201033.3 C (91.9 F)
201135.0 C (95.0 F)
201235.0 C (95.0 F)
201333.3 C (91.9 F)
201431.1 C (88.0 F)
201532.2 C (90.0 F)
201635.6 C (96.1 F)
201733.9 C (93.0 F)
201835.6 C (96.1 F)
201930.0 C (86.0 F)
2020n/a
2021n/a
2022n/a
2023n/a
2024n/a
2025n/a
2026n/a

Coldest night (TNn)

Coldest night (TNn) at Niagara Falls by year The coldest night of the year at Niagara Falls, 1989 to 2026. The record is -26.1 C (-15.0 F) in 1996, marked on the chart; the median year is -19.4 C (-2.9 F). -30-25-20-15-101990200020102020Record: -26.1 C (-15.0 F) in 1996
The coldest night of the year at Niagara Falls, 1989 to 2026. The record is -26.1 C (-15.0 F) in 1996, marked on the chart; the median year is -19.4 C (-2.9 F).
Coldest night (TNn) at Niagara Falls by year
YearColdest night (TNn)
1989-21.1 C (-6.0 F)
1990-16.7 C (1.9 F)
1991-17.2 C (1.0 F)
1992-19.4 C (-2.9 F)
1993-22.8 C (-9.0 F)
1994-23.9 C (-11.0 F)
1995-18.3 C (-0.9 F)
1996-26.1 C (-15.0 F)
1997-18.3 C (-0.9 F)
1998-14.4 C (6.1 F)
1999-19.4 C (-2.9 F)
2000-20.0 C (-4.0 F)
2001-17.2 C (1.0 F)
2002-18.9 C (-2.0 F)
2003-25.0 C (-13.0 F)
2004-23.3 C (-9.9 F)
2005-23.9 C (-11.0 F)
2006-14.4 C (6.1 F)
2007-18.3 C (-0.9 F)
2008-18.3 C (-0.9 F)
2009-19.4 C (-2.9 F)
2010-18.3 C (-0.9 F)
2011-24.4 C (-11.9 F)
2012-18.3 C (-0.9 F)
2013-19.4 C (-2.9 F)
2014-23.3 C (-9.9 F)
2015-25.0 C (-13.0 F)
2016-24.4 C (-11.9 F)
2017-19.4 C (-2.9 F)
2018-18.9 C (-2.0 F)
2019-20.0 C (-4.0 F)
2020n/a
2021n/a
2022n/a
2023n/a
2024n/a
2025n/a
2026n/a

Wettest day (Rx1day)

Wettest day (Rx1day) at Niagara Falls by year The wettest day of the year at Niagara Falls, 1989 to 2026. The record is 102.4 mm (4.0 in) in 2013, marked on the chart; the median year is 46.1 mm (1.8 in). 204060801001201990200020102020Record: 102.4 mm (4.0 in) in 2013
The wettest day of the year at Niagara Falls, 1989 to 2026. The record is 102.4 mm (4.0 in) in 2013, marked on the chart; the median year is 46.1 mm (1.8 in).
Wettest day (Rx1day) at Niagara Falls by year
YearWettest day (Rx1day)
198945.7 mm (1.8 in)
199048.0 mm (1.9 in)
199146.2 mm (1.8 in)
199250.5 mm (2.0 in)
199344.5 mm (1.8 in)
199447.8 mm (1.9 in)
199569.9 mm (2.8 in)
199639.9 mm (1.6 in)
199743.2 mm (1.7 in)
199827.7 mm (1.1 in)
199969.9 mm (2.8 in)
200055.6 mm (2.2 in)
200126.7 mm (1.1 in)
200239.4 mm (1.6 in)
200325.9 mm (1.0 in)
200476.2 mm (3.0 in)
200561.0 mm (2.4 in)
200646.0 mm (1.8 in)
200737.1 mm (1.5 in)
200824.4 mm (1.0 in)
200965.3 mm (2.6 in)
201038.1 mm (1.5 in)
201135.6 mm (1.4 in)
201245.5 mm (1.8 in)
2013102.4 mm (4.0 in)
201496.0 mm (3.8 in)
201548.5 mm (1.9 in)
201642.2 mm (1.7 in)
201747.0 mm (1.9 in)
201850.3 mm (2.0 in)
201935.8 mm (1.4 in)
202025.9 mm (1.0 in)
202158.4 mm (2.3 in)
202242.4 mm (1.7 in)
202347.2 mm (1.9 in)
202437.3 mm (1.5 in)
202562.5 mm (2.5 in)
202679.0 mm (3.1 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Niagara Falls by year The wettest five days of the year at Niagara Falls, 1989 to 2026. The record is 150.6 mm (5.9 in) in 2021, marked on the chart; the median year is 69.3 mm (2.7 in). 0501001502001990200020102020Record: 150.6 mm (5.9 in) in 2021
The wettest five days of the year at Niagara Falls, 1989 to 2026. The record is 150.6 mm (5.9 in) in 2021, marked on the chart; the median year is 69.3 mm (2.7 in).
Wettest five days (Rx5day) at Niagara Falls by year
YearWettest five days (Rx5day)
198953.1 mm (2.1 in)
199065.0 mm (2.6 in)
199165.0 mm (2.6 in)
199255.6 mm (2.2 in)
199374.2 mm (2.9 in)
199492.1 mm (3.6 in)
199599.1 mm (3.9 in)
199659.0 mm (2.3 in)
199763.2 mm (2.5 in)
199856.6 mm (2.2 in)
199979.8 mm (3.1 in)
200072.7 mm (2.9 in)
200156.9 mm (2.2 in)
200268.1 mm (2.7 in)
200341.9 mm (1.6 in)
200489.2 mm (3.5 in)
200585.1 mm (3.4 in)
200670.3 mm (2.8 in)
200752.1 mm (2.1 in)
200846.3 mm (1.8 in)
2009100.1 mm (3.9 in)
201049.5 mm (1.9 in)
201157.2 mm (2.3 in)
201287.9 mm (3.5 in)
2013106.5 mm (4.2 in)
2014141.5 mm (5.6 in)
201570.9 mm (2.8 in)
201662.5 mm (2.5 in)
201790.2 mm (3.6 in)
201887.9 mm (3.5 in)
201946.5 mm (1.8 in)
202037.3 mm (1.5 in)
2021150.6 mm (5.9 in)
202268.3 mm (2.7 in)
202381.7 mm (3.2 in)
202471.2 mm (2.8 in)
202564.0 mm (2.5 in)
202683.1 mm (3.3 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Niagara Falls by year The longest dry spell of the year at Niagara Falls, 1989 to 2026. The record is 28 days in 2011, marked on the chart; the median year is 15 days. 510152025301990200020102020Record: 28 days in 2011
The longest dry spell of the year at Niagara Falls, 1989 to 2026. The record is 28 days in 2011, marked on the chart; the median year is 15 days.
Longest dry spell (CDD) at Niagara Falls by year
YearLongest dry spell (CDD)
198911 days
199012 days
199117 days
199214 days
19939 days
199416 days
199523 days
199612 days
199713 days
199812 days
199915 days
200017 days
200113 days
200226 days
200313 days
200415 days
200516 days
200612 days
200714 days
200818 days
200922 days
201010 days
201128 days
201219 days
201314 days
201411 days
201519 days
201619 days
201719 days
201812 days
20198 days
202015 days
202123 days
202211 days
202322 days
202417 days
202516 days
202611 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Frost Dates and Growing Season

23 years with a frost

Across 23 years with a frost, the median last spring frost at Niagara Falls falls on 28 April and the median first autumn frost on 13 October, which leaves a median of 170 days between them.

Frost dates and growing season at Niagara Falls
MeasureMedian, all yearsEarliest periodRecent period (1990 to 2018)Recent against earliestFitted trend
Last spring frost28 Apriln/a28 Apriln/an/a
First autumn frost13 Octobern/a13 Octobern/an/a
Growing days170 daysn/a170 daysn/an/a

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Rainfall Return Levels

34 years, 1990 to 2025

A day with at least 46.3 mm (1.8 in) of rain is expected about once in 2 years. A day with at least 112.0 mm (4.4 in) of rain is expected about once in 100 years.

Rainfall return levels at Niagara Falls: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years46.3 mm (1.8 in)
5 years61.7 mm (2.4 in)
10 years72.7 mm (2.9 in)
25 years87.7 mm (3.5 in)
50 years99.5 mm (3.9 in)Longer than the 34 years of record
100 years112.0 mm (4.4 in)Longer than the 34 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 34 years of values from 1990 to 2025.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 102.4 mm (4.0 in) in 2013; 96.0 mm (3.8 in) in 2014; 76.2 mm (3.0 in) in 2004.

Download the Data

  • Data for Niagara Falls standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Niagara Falls 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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-16).