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Built 2026-10-19 (19 October 2026)

Winona Dam 5 A Threshold Days by Year (USC00219072)

18 fixed thresholds counted per year at Winona Dam 5 A (USC00219072): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Winona Dam 5 A Thresholds

  • Winona Dam 5 A: days with 10 mm (0.39 in) or more of precipitation in 85 years, most in 2019 with 36.
  • Winona Dam 5 A: days with 25 mm (0.98 in) or more of precipitation in 85 years, most in 2025 with 15.
  • Winona Dam 5 A: days with 10 cm (3.9 in) or more of snowfall in 64 years, most in 1951 with 10.
  • Winona Dam 5 A: days with 50 mm (1.97 in) or more of precipitation in 54 years, most in 1978 with 4.
  • 18 fixed thresholds have at least one qualifying day at Winona Dam 5 A.
39 years with a qualifying day
Days at or above 30 C (86 F) per year at Winona Dam 5 A Days per year at Winona Dam 5 A with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 47 in 1998. 02040601940: 301941: 391942: 181943: 391992: 141993: 131994: 321995: 421996: 261997: 241998: 471999: 422000: 422001: 392002: 412003: 302004: 162005: 382006: 302007: 252008: 72009: 122010: 312011: 352012: 452013: 282014: 92015: 192016: 312017: 222018: 292019: 162020: 262021: 322022: 232023: 402024: 152025: 232026: 241940199219962000200420082012201620202024
Days per year at Winona Dam 5 A with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 47 in 1998.
Days at or above 30 C (86 F) per year at Winona Dam 5 A
YearDaysDecade average
19403031.5
19413931.5
19421831.5
19433931.5
19921430
19931330
19943230
19954230
19962630
19972430
19984730
19994230
20004228
20013928
20024128
20033028
20041628
20053828
20063028
20072528
2008728
20091228
20103126.5
20113526.5
20124526.5
20132826.5
2014926.5
20151926.5
20163126.5
20172226.5
20182926.5
20191626.5
20202626.1
20213226.1
20222326.1
20234026.1
20241526.1
20252326.1
20262426.1
First to last qualifying date each year at Winona Dam 5 A For each year, a bar from the first to the last day at Winona Dam 5 A meeting 30 C (86 F). 1940: 12 May 1940 to 20 September 19401941: 26 May 1941 to 21 September 19411942: 5 June 1942 to 11 September 19421943: 29 May 1943 to 3 September 19431992: 2 May 1992 to 3 October 19921993: 23 June 1993 to 8 October 19931994: 20 May 1994 to 16 September 19941995: 4 June 1995 to 13 October 19951996: 19 May 1996 to 8 September 19961997: 13 June 1997 to 4 October 19971998: 15 May 1998 to 27 September 19981999: 30 May 1999 to 6 September 19992000: 5 May 2000 to 19 October 20002001: 15 May 2001 to 27 August 20012002: 16 April 2002 to 10 September 20022003: 15 April 2003 to 9 September 20032004: 17 April 2004 to 5 September 20042005: 7 June 2005 to 5 October 20052006: 29 May 2006 to 13 August 20062007: 27 March 2007 to 7 October 20072008: 26 June 2008 to 3 September 20082009: 25 April 2009 to 15 August 20092010: 25 May 2010 to 31 August 20102011: 11 May 2011 to 13 September 20112012: 19 May 2012 to 12 September 20122013: 15 May 2013 to 11 September 20132014: 1 June 2014 to 30 August 20142015: 10 June 2015 to 17 September 20152016: 7 May 2016 to 21 August 20162017: 3 June 2017 to 25 September 20172018: 25 May 2018 to 18 September 20182019: 1 June 2019 to 1 October 20192020: 2 June 2020 to 27 August 20202021: 5 June 2021 to 20 September 20212022: 12 May 2022 to 9 September 20222023: 13 April 2023 to 3 October 20232024: 19 May 2024 to 18 September 20242025: 3 June 2025 to 5 October 20252026: 16 May 2026 to 13 October 202619401993199820032008201320182023JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Winona Dam 5 A meeting 30 C (86 F).
First to last qualifying date each year at Winona Dam 5 A
YearFirst dateLast date
19401940-05-121940-09-20
19411941-05-261941-09-21
19421942-06-051942-09-11
19431943-05-291943-09-03
19921992-05-021992-10-03
19931993-06-231993-10-08
19941994-05-201994-09-16
19951995-06-041995-10-13
19961996-05-191996-09-08
19971997-06-131997-10-04
19981998-05-151998-09-27
19991999-05-301999-09-06
20002000-05-052000-10-19
20012001-05-152001-08-27
20022002-04-162002-09-10
20032003-04-152003-09-09
20042004-04-172004-09-05
20052005-06-072005-10-05
20062006-05-292006-08-13
20072007-03-272007-10-07
20082008-06-262008-09-03
20092009-04-252009-08-15
20102010-05-252010-08-31
20112011-05-112011-09-13
20122012-05-192012-09-12
20132013-05-152013-09-11
20142014-06-012014-08-30
20152015-06-102015-09-17
20162016-05-072016-08-21
20172017-06-032017-09-25
20182018-05-252018-09-18
20192019-06-012019-10-01
20202020-06-022020-08-27
20212021-06-052021-09-20
20222022-05-122022-09-09
20232023-04-132023-10-03
20242024-05-192024-09-18
20252025-06-032025-10-05
20262026-05-162026-10-13

Every Fixed Threshold

Fixed thresholds at Winona Dam 5 A
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days3947199824
35 C (95 F): Days23919951
40 C (104 F): Days1119951
90 F (32.2 C): Days372519957
100 F (37.8 C): Days4219951
0 C (32 F): Ice days (max3996199636
0 C (32 F): Frost days (min39174201383
-10 C (14 F): Days with min3991201431
-20 C (-4 F): Days with min3941201410
-30 C (-22 F): Days with min101019944
20 C (68 F): Tropical nights (min3937194128
25 C (77 F): Days with min11320122
10 mm (0.39 in): Days with 10 mm or more rain8536201924
25 mm (0.98 in): Days with 25 mm or more rain851520258
50 mm (1.97 in): Days with 50 mm or more rain54419782
100 mm (3.94 in): Days with 100 mm or more rain8119781
10 cm (3.9 in): Days with 10 cm or more snowfall641019511
25 cm (9.8 in): Days with 25 cm or more snowfall12219651

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1940.

Download the Data

  • Data for Winona Dam 5 A 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).