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Built 2026-10-19 (19 October 2026)

Ames 5 SE Threshold Days by Year (USC00130203)

17 fixed thresholds counted per year at Ames 5 SE (USC00130203): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Ames 5 SE Thresholds

  • Ames 5 SE: days with 10 mm (0.39 in) or more of precipitation in 48 years, most in 2018 with 47.
  • Ames 5 SE: days with 25 mm (0.98 in) or more of precipitation in 48 years, most in 2010 with 16.
  • Ames 5 SE: days with 50 mm (1.97 in) or more of precipitation in 41 years, most in 2015 with 6.
  • Ames 5 SE: days with 10 cm (3.9 in) or more of snowfall in 41 years, most in 1983 with 4.
  • 17 fixed thresholds have at least one qualifying day at Ames 5 SE.
29 years with a qualifying day
Days at or above 30 C (86 F) per year at Ames 5 SE Days per year at Ames 5 SE with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 61 in 2012. 0204060801997: 391998: 411999: 342000: 352001: 502002: 512003: 342004: 172005: 462006: 452007: 462008: 242009: 122010: 302011: 382012: 612013: 462014: 152015: 202016: 432017: 412018: 402019: 342020: 512021: 552022: 442023: 442024: 392026: 561997200020032006200920122015201820212024
Days per year at Ames 5 SE with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 61 in 2012.
Days at or above 30 C (86 F) per year at Ames 5 SE
YearDaysDecade average
19973938
19984138
19993438
20003536
20015036
20025136
20033436
20041736
20054636
20064536
20074636
20082436
20091236
20103036.8
20113836.8
20126136.8
20134636.8
20141536.8
20152036.8
20164336.8
20174136.8
20184036.8
20193436.8
20205148.2
20215548.2
20224448.2
20234448.2
20243948.2
20265648.2
First to last qualifying date each year at Ames 5 SE For each year, a bar from the first to the last day at Ames 5 SE meeting 30 C (86 F). 1997: 18 May 1997 to 7 October 19971998: 18 May 1998 to 27 September 19981999: 6 June 1999 to 13 October 19992000: 12 May 2000 to 19 September 20002001: 15 May 2001 to 13 September 20012002: 16 April 2002 to 1 October 20022003: 2 April 2003 to 21 October 20032004: 17 April 2004 to 13 September 20042005: 7 June 2005 to 5 October 20052006: 14 April 2006 to 4 October 20062007: 30 April 2007 to 24 September 20072008: 26 May 2008 to 3 September 20082009: 18 June 2009 to 15 August 20092010: 25 May 2010 to 21 September 20102011: 11 April 2011 to 13 September 20112012: 16 May 2012 to 12 September 20122013: 15 May 2013 to 20 September 20132014: 8 May 2014 to 21 September 20142015: 10 June 2015 to 17 September 20152016: 7 May 2016 to 22 September 20162017: 16 May 2017 to 25 September 20172018: 25 May 2018 to 4 October 20182019: 17 May 2019 to 1 October 20192020: 2 June 2020 to 10 October 20202021: 2 May 2021 to 30 September 20212022: 10 May 2022 to 21 September 20222023: 31 May 2023 to 3 October 20232024: 19 May 2024 to 6 October 20242026: 22 March 2026 to 13 October 202619972001200520092013201720212026JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Ames 5 SE meeting 30 C (86 F).
First to last qualifying date each year at Ames 5 SE
YearFirst dateLast date
19971997-05-181997-10-07
19981998-05-181998-09-27
19991999-06-061999-10-13
20002000-05-122000-09-19
20012001-05-152001-09-13
20022002-04-162002-10-01
20032003-04-022003-10-21
20042004-04-172004-09-13
20052005-06-072005-10-05
20062006-04-142006-10-04
20072007-04-302007-09-24
20082008-05-262008-09-03
20092009-06-182009-08-15
20102010-05-252010-09-21
20112011-04-112011-09-13
20122012-05-162012-09-12
20132013-05-152013-09-20
20142014-05-082014-09-21
20152015-06-102015-09-17
20162016-05-072016-09-22
20172017-05-162017-09-25
20182018-05-252018-10-04
20192019-05-172019-10-01
20202020-06-022020-10-10
20212021-05-022021-09-30
20222022-05-102022-09-21
20232023-05-312023-10-03
20242024-05-192024-10-06
20262026-03-222026-10-13

Every Fixed Threshold

Fixed thresholds at Ames 5 SE
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days2961201256
35 C (95 F): Days231420124
90 F (32.2 C): Days2933201228
100 F (37.8 C): Days3320121
0 C (32 F): Ice days (max2980201029
0 C (32 F): Frost days (min29171201868
-10 C (14 F): Days with min2976201325
-20 C (-4 F): Days with min292820145
-30 C (-22 F): Days with min6320182
20 C (68 F): Tropical nights (min2924200731
25 C (77 F): Days with min4120062
10 mm (0.39 in): Days with 10 mm or more rain4847201835
25 mm (0.98 in): Days with 25 mm or more rain4816201015
50 mm (1.97 in): Days with 50 mm or more rain41620153
100 mm (3.94 in): Days with 100 mm or more rain8220102
10 cm (3.9 in): Days with 10 cm or more snowfall41419831
25 cm (9.8 in): Days with 25 cm or more snowfall4219941

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1997.

Download the Data

  • Data for Ames 5 SE 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).