Built 2026-10-19 (19 October 2026)

Butler 2 SW Threshold Days by Year (USC00361139)

15 fixed thresholds counted per year at Butler 2 SW (USC00361139): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Butler 2 SW Thresholds

  • Butler 2 SW: days with 10 mm (0.39 in) or more of precipitation in 50 years, most in 2019 with 50.
  • Butler 2 SW: days with 25 mm (0.98 in) or more of precipitation in 50 years, most in 2004 with 14.
  • Butler 2 SW: days with a maximum temperature at or above 30 C (86 F) in 48 years, most in 1970 with 52.
  • Butler 2 SW: days with a maximum temperature at or below 0 C (32 F) in 48 years, most in 2010 with 56.
  • 15 fixed thresholds have at least one qualifying day at Butler 2 SW.
48 years with a qualifying day
Days at or above 30 C (86 F) per year at Butler 2 SW Days per year at Butler 2 SW with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 52 in 1970. 02040601968: 391969: 311970: 521971: 301972: 241973: 351974: 171975: 291976: 221977: 341978: 281979: 341980: 351981: 221982: 291983: 501984: 211985: 221986: 291987: 391988: 521989: 241990: 141991: 481992: 21993: 281994: 181995: 301996: 131997: 171998: 261999: 382000: 122001: 322002: 512003: 132004: 42005: 472006: 212007: 352010: 382011: 322013: 132015: 232016: 482017: 182018: 232019: 271968197319781983198819931998200320102017
Days per year at Butler 2 SW with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 52 in 1970.
Days at or above 30 C (86 F) per year at Butler 2 SW
YearDaysDecade average
19683935
19693135
19705230.5
19713030.5
19722430.5
19733530.5
19741730.5
19752930.5
19762230.5
19773430.5
19782830.5
19793430.5
19803532.3
19812232.3
19822932.3
19835032.3
19842132.3
19852232.3
19862932.3
19873932.3
19885232.3
19892432.3
19901423.4
19914823.4
1992223.4
19932823.4
19941823.4
19953023.4
19961323.4
19971723.4
19982623.4
19993823.4
20001226.9
20013226.9
20025126.9
20031326.9
2004426.9
20054726.9
20062126.9
20073526.9
20103827.8
20113227.8
20131327.8
20152327.8
20164827.8
20171827.8
20182327.8
20192727.8
First to last qualifying date each year at Butler 2 SW For each year, a bar from the first to the last day at Butler 2 SW meeting 30 C (86 F). 1968: 7 June 1968 to 5 September 19681969: 30 May 1969 to 2 September 19691970: 1 May 1970 to 25 September 19701971: 19 May 1971 to 30 September 19711972: 25 May 1972 to 18 September 19721973: 6 June 1973 to 6 September 19731974: 15 May 1974 to 28 August 19741975: 22 May 1975 to 27 August 19751976: 18 April 1976 to 10 September 19761977: 18 May 1977 to 6 September 19771978: 27 May 1978 to 22 September 19781979: 9 May 1979 to 7 September 19791980: 6 May 1980 to 14 September 19801981: 15 June 1981 to 30 August 19811982: 7 May 1982 to 14 September 19821983: 12 June 1983 to 21 September 19831984: 6 June 1984 to 23 September 19841985: 23 April 1985 to 10 September 19851986: 6 April 1986 to 1 October 19861987: 29 May 1987 to 18 August 19871988: 30 May 1988 to 28 August 19881989: 20 May 1989 to 11 September 19891990: 27 April 1990 to 4 September 19901991: 15 May 1991 to 17 September 19911992: 15 July 1992 to 11 August 19921993: 19 June 1993 to 3 September 19931994: 14 June 1994 to 21 July 19941995: 19 June 1995 to 1 September 19951996: 19 May 1996 to 24 August 19961997: 22 June 1997 to 13 August 19971998: 16 May 1998 to 27 September 19981999: 7 June 1999 to 13 September 19992000: 7 May 2000 to 3 September 20002001: 4 May 2001 to 10 September 20012002: 17 April 2002 to 22 September 20022003: 24 June 2003 to 23 August 20032004: 14 May 2004 to 3 August 20042005: 6 June 2005 to 15 September 20052006: 30 May 2006 to 26 August 20062007: 24 May 2007 to 8 October 20072010: 27 May 2010 to 25 September 20102011: 30 May 2011 to 4 September 20112013: 1 June 2013 to 12 September 20132015: 9 May 2015 to 9 September 20152016: 29 May 2016 to 24 September 20162017: 1 May 2017 to 28 September 20172018: 29 May 2018 to 6 September 20182019: 20 May 2019 to 4 October 201919681974198019861992199820042013JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Butler 2 SW meeting 30 C (86 F).
First to last qualifying date each year at Butler 2 SW
YearFirst dateLast date
19681968-06-071968-09-05
19691969-05-301969-09-02
19701970-05-011970-09-25
19711971-05-191971-09-30
19721972-05-251972-09-18
19731973-06-061973-09-06
19741974-05-151974-08-28
19751975-05-221975-08-27
19761976-04-181976-09-10
19771977-05-181977-09-06
19781978-05-271978-09-22
19791979-05-091979-09-07
19801980-05-061980-09-14
19811981-06-151981-08-30
19821982-05-071982-09-14
19831983-06-121983-09-21
19841984-06-061984-09-23
19851985-04-231985-09-10
19861986-04-061986-10-01
19871987-05-291987-08-18
19881988-05-301988-08-28
19891989-05-201989-09-11
19901990-04-271990-09-04
19911991-05-151991-09-17
19921992-07-151992-08-11
19931993-06-191993-09-03
19941994-06-141994-07-21
19951995-06-191995-09-01
19961996-05-191996-08-24
19971997-06-221997-08-13
19981998-05-161998-09-27
19991999-06-071999-09-13
20002000-05-072000-09-03
20012001-05-042001-09-10
20022002-04-172002-09-22
20032003-06-242003-08-23
20042004-05-142004-08-03
20052005-06-062005-09-15
20062006-05-302006-08-26
20072007-05-242007-10-08
20102010-05-272010-09-25
20112011-05-302011-09-04
20132013-06-012013-09-12
20152015-05-092015-09-09
20162016-05-292016-09-24
20172017-05-012017-09-28
20182018-05-292018-09-06
20192019-05-202019-10-04

Every Fixed Threshold

Fixed thresholds at Butler 2 SW
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days4852197027
35 C (95 F): Days91519882
90 F (32.2 C): Days423819885
100 F (37.8 C): Days1319883
0 C (32 F): Ice days (max4856201039
0 C (32 F): Frost days (min461731976152
-10 C (14 F): Days with min4661197829
-20 C (-4 F): Days with min351919772
20 C (68 F): Tropical nights (min401220064
10 mm (0.39 in): Days with 10 mm or more rain5050201950
25 mm (0.98 in): Days with 25 mm or more rain5014200411
50 mm (1.97 in): Days with 50 mm or more rain31319741
100 mm (3.94 in): Days with 100 mm or more rain2120041
10 cm (3.9 in): Days with 10 cm or more snowfall34619711
25 cm (9.8 in): Days with 25 cm or more snowfall4119731

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1968.

Download the Data

  • Data for Butler 2 SW 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 (2025-12-31).