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Built 2026-10-16 (16 October 2026)

Ketchum Rs Threshold Days by Year

14 fixed thresholds counted per year at Ketchum Rs (USC00104845): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Ketchum Rs Thresholds

  • Ketchum Rs: days with a maximum temperature at or below 0 C (32 F) in 47 years, most in 1985 with 89.
  • Ketchum Rs: days with a maximum temperature at or above 30 C (86 F) in 46 years, most in 1994 with 32.
  • Ketchum Rs: nights with a minimum temperature at or below 0 C (32 F) in 42 years, most in 1991 with 268.
  • Ketchum Rs: nights with a minimum temperature at or below -10 C (14 F) in 42 years, most in 1985 with 129.
  • 14 fixed thresholds have at least one qualifying day at Ketchum Rs.
46 years with a qualifying day
Days at or above 30 C (86 F) per year at Ketchum Rs Days per year at Ketchum Rs with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 32 in 1994. 0102030401975: 61978: 151979: 81980: 41981: 101982: 61983: 61984: 91985: 171986: 151987: 71988: 251989: 131990: 201991: 141992: 171994: 321995: 41996: 221997: 51998: 242000: 222001: 172002: 212003: 292004: 82005: 112006: 162007: 232008: 132009: 82010: 32012: 102013: 152014: 112015: 152016: 82017: 182018: 122019: 62020: 102021: 222023: 72024: 182025: 192026: 241975198219871992199820042009201520202026
Days per year at Ketchum Rs with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 32 in 1994.
Days at or above 30 C (86 F) per year at Ketchum Rs
YearDaysDecade average
197569.7
1978159.7
197989.7
1980411.2
19811011.2
1982611.2
1983611.2
1984911.2
19851711.2
19861511.2
1987711.2
19882511.2
19891311.2
19902017.3
19911417.3
19921717.3
19943217.3
1995417.3
19962217.3
1997517.3
19982417.3
20002216.8
20011716.8
20022116.8
20032916.8
2004816.8
20051116.8
20061616.8
20072316.8
20081316.8
2009816.8
2010310.9
20121010.9
20131510.9
20141110.9
20151510.9
2016810.9
20171810.9
20181210.9
2019610.9
20201016.7
20212216.7
2023716.7
20241816.7
20251916.7
20262416.7
First to last qualifying date each year at Ketchum Rs For each year, a bar from the first to the last day at Ketchum Rs meeting 30 C (86 F). 1975: 10 July 1975 to 6 August 19751978: 14 July 1978 to 12 August 19781979: 29 June 1979 to 6 August 19791980: 22 July 1980 to 28 July 19801981: 25 June 1981 to 27 August 19811982: 21 July 1982 to 23 August 19821983: 29 May 1983 to 8 August 19831984: 29 June 1984 to 11 August 19841985: 20 June 1985 to 26 August 19851986: 30 May 1986 to 29 August 19861987: 27 July 1987 to 2 September 19871988: 20 June 1988 to 7 September 19881989: 4 July 1989 to 31 July 19891990: 25 June 1990 to 15 August 19901991: 4 July 1991 to 23 August 19911992: 23 June 1992 to 20 August 19921994: 21 June 1994 to 22 August 19941995: 9 July 1995 to 7 August 19951996: 30 June 1996 to 31 August 19961997: 16 July 1997 to 4 August 19971998: 6 July 1998 to 6 September 19982000: 13 July 2000 to 19 August 20002001: 25 June 2001 to 4 September 20012002: 2 June 2002 to 19 August 20022003: 29 May 2003 to 21 August 20032004: 14 July 2004 to 14 August 20042005: 13 July 2005 to 22 August 20052006: 4 July 2006 to 23 August 20062007: 5 July 2007 to 4 September 20072008: 30 June 2008 to 26 August 20082009: 17 July 2009 to 22 August 20092010: 17 July 2010 to 26 July 20102012: 9 July 2012 to 16 August 20122013: 29 June 2013 to 21 August 20132014: 5 July 2014 to 28 July 20142015: 26 June 2015 to 26 August 20152016: 22 July 2016 to 3 August 20162017: 5 July 2017 to 6 September 20172018: 19 July 2018 to 12 August 20182019: 13 July 2019 to 5 September 20192020: 31 July 2020 to 7 September 20202021: 22 June 2021 to 9 September 20212023: 21 July 2023 to 18 August 20232024: 10 July 2024 to 8 August 20242025: 2 July 2025 to 4 September 20252026: 17 June 2026 to 21 August 202619751983198919962003200920162023JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Ketchum Rs meeting 30 C (86 F).
First to last qualifying date each year at Ketchum Rs
YearFirst dateLast date
19751975-07-101975-08-06
19781978-07-141978-08-12
19791979-06-291979-08-06
19801980-07-221980-07-28
19811981-06-251981-08-27
19821982-07-211982-08-23
19831983-05-291983-08-08
19841984-06-291984-08-11
19851985-06-201985-08-26
19861986-05-301986-08-29
19871987-07-271987-09-02
19881988-06-201988-09-07
19891989-07-041989-07-31
19901990-06-251990-08-15
19911991-07-041991-08-23
19921992-06-231992-08-20
19941994-06-211994-08-22
19951995-07-091995-08-07
19961996-06-301996-08-31
19971997-07-161997-08-04
19981998-07-061998-09-06
20002000-07-132000-08-19
20012001-06-252001-09-04
20022002-06-022002-08-19
20032003-05-292003-08-21
20042004-07-142004-08-14
20052005-07-132005-08-22
20062006-07-042006-08-23
20072007-07-052007-09-04
20082008-06-302008-08-26
20092009-07-172009-08-22
20102010-07-172010-07-26
20122012-07-092012-08-16
20132013-06-292013-08-21
20142014-07-052014-07-28
20152015-06-262015-08-26
20162016-07-222016-08-03
20172017-07-052017-09-06
20182018-07-192018-08-12
20192019-07-132019-09-05
20202020-07-312020-09-07
20212021-06-222021-09-09
20232023-07-212023-08-18
20242024-07-102024-08-08
20252025-07-022025-09-04
20262026-06-172026-08-21

Every Fixed Threshold

Fixed thresholds at Ketchum Rs
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days4632199424
35 C (95 F): Days4220012
90 F (32.2 C): Days331620036
0 C (32 F): Ice days (max478919859
0 C (32 F): Frost days (min422681991179
-10 C (14 F): Days with min42129198522
-20 C (-4 F): Days with min4134198522
-30 C (-22 F): Days with min9619902
10 mm (0.39 in): Days with 10 mm or more rain412619834
25 mm (0.98 in): Days with 25 mm or more rain31720051
50 mm (1.97 in): Days with 50 mm or more rain1119951
10 cm (3.9 in): Days with 10 cm or more snowfall412319752
25 cm (9.8 in): Days with 25 cm or more snowfall28719823
50 cm (19.7 in): Days with 50 cm or more snowfall3119851

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1975.

Download the Data

  • Data for Ketchum Rs 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 2026-10-14 (14 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2026-10-14).