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Built 2026-10-19 (19 October 2026)

Plains Threshold Days by Year (USC00417074)

18 fixed thresholds counted per year at Plains (USC00417074): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Plains Thresholds

  • Plains: days with 10 mm (0.39 in) or more of precipitation in 71 years, most in 1926 with 24.
  • Plains: days with 25 mm (0.98 in) or more of precipitation in 69 years, most in 1974 with 10.
  • Plains: days with a maximum temperature at or above 30 C (86 F) in 66 years, most in 2011 with 147.
  • Plains: days with a maximum temperature at or above 35 C (95 F) in 66 years, most in 2011 with 90.
  • 18 fixed thresholds have at least one qualifying day at Plains.
66 years with a qualifying day
Days at or above 30 C (86 F) per year at Plains Days per year at Plains with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 147 in 2011. 0501001502001948: 1321949: 971950: 1171951: 1271953: 1231954: 1291955: 1121956: 1441957: 971958: 1111959: 1231960: 1261961: 1241962: 1291965: 1241967: 1021968: 971969: 941970: 1141971: 1021972: 971973: 1101974: 971975: 901976: 861977: 1241978: 1221979: 1141982: 951983: 1011984: 1001985: 1111987: 771988: 1111989: 1191990: 1041991: 1061992: 1051993: 1251994: 1241995: 1141996: 1261997: 1231999: 1132000: 1082001: 1372004: 1122005: 1212009: 1192010: 1192011: 1472012: 1472013: 1302014: 1122015: 1132016: 1172017: 1142018: 1202019: 1222020: 1402021: 1172022: 1422023: 1232024: 1472025: 1352026: 1521948195619651973198219901997201020172024
Days per year at Plains with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 147 in 2011.
Days at or above 30 C (86 F) per year at Plains
YearDaysDecade average
1948132114.5
194997114.5
1950117120.3
1951127120.3
1953123120.3
1954129120.3
1955112120.3
1956144120.3
195797120.3
1958111120.3
1959123120.3
1960126113.7
1961124113.7
1962129113.7
1965124113.7
1967102113.7
196897113.7
196994113.7
1970114105.6
1971102105.6
197297105.6
1973110105.6
197497105.6
197590105.6
197686105.6
1977124105.6
1978122105.6
1979114105.6
198295102
1983101102
1984100102
1985111102
198777102
1988111102
1989119102
1990104115.6
1991106115.6
1992105115.6
1993125115.6
1994124115.6
1995114115.6
1996126115.6
1997123115.6
1999113115.6
2000108119.4
2001137119.4
2004112119.4
2005121119.4
2009119119.4
2010119124.1
2011147124.1
2012147124.1
2013130124.1
2014112124.1
2015113124.1
2016117124.1
2017114124.1
2018120124.1
2019122124.1
2020140136.6
2021117136.6
2022142136.6
2023123136.6
2024147136.6
2025135136.6
2026152136.6
First to last qualifying date each year at Plains For each year, a bar from the first to the last day at Plains meeting 30 C (86 F). 1948: 11 April 1948 to 16 October 19481949: 27 April 1949 to 9 October 19491950: 4 April 1950 to 1 November 19501951: 15 April 1951 to 16 October 19511953: 22 April 1953 to 17 October 19531954: 4 April 1954 to 21 October 19541955: 16 April 1955 to 20 October 19551956: 26 April 1956 to 15 October 19561957: 19 April 1957 to 5 October 19571958: 7 May 1958 to 25 September 19581959: 6 April 1959 to 26 October 19591960: 7 April 1960 to 9 October 19601961: 19 April 1961 to 22 October 19611962: 13 April 1962 to 15 October 19621965: 21 April 1965 to 16 October 19651967: 28 March 1967 to 13 October 19671968: 2 May 1968 to 30 October 19681969: 8 April 1969 to 11 October 19691970: 8 May 1970 to 14 October 19701971: 28 March 1971 to 16 October 19711972: 12 March 1972 to 18 October 19721973: 9 May 1973 to 2 November 19731974: 19 April 1974 to 12 September 19741975: 17 April 1975 to 9 November 19751976: 15 April 1976 to 24 September 19761977: 9 April 1977 to 21 October 19771978: 1 April 1978 to 19 October 19781979: 16 April 1979 to 22 October 19791982: 18 May 1982 to 8 October 19821983: 29 April 1983 to 29 September 19831984: 4 May 1984 to 28 November 19841985: 4 April 1985 to 9 October 19851987: 19 April 1987 to 31 October 19871988: 5 April 1988 to 3 November 19881989: 12 March 1989 to 16 October 19891990: 15 April 1990 to 28 September 19901991: 8 April 1991 to 18 October 19911992: 11 April 1992 to 14 October 19921993: 12 April 1993 to 15 October 19931994: 14 April 1994 to 5 October 19941995: 19 March 1995 to 18 October 19951996: 9 April 1996 to 15 October 19961997: 21 March 1997 to 19 October 19971999: 20 April 1999 to 16 October 19992000: 4 April 2000 to 6 October 20002001: 5 April 2001 to 22 October 20012004: 25 March 2004 to 22 October 20042005: 20 April 2005 to 19 October 20052009: 5 March 2009 to 21 October 20092010: 31 March 2010 to 31 October 20102011: 17 March 2011 to 26 October 20112012: 19 March 2012 to 24 October 20122013: 16 March 2013 to 11 October 20132014: 10 April 2014 to 27 October 20142015: 9 April 2015 to 16 October 20152016: 6 April 2016 to 2 November 20162017: 11 February 2017 to 15 October 20172018: 23 March 2018 to 6 October 20182019: 10 April 2019 to 8 October 20192020: 27 March 2020 to 23 October 20202021: 6 April 2021 to 27 October 20212022: 27 March 2022 to 1 October 20222023: 13 April 2023 to 22 October 20232024: 14 April 2024 to 30 October 20242025: 26 March 2025 to 16 November 20252026: 26 February 2026 to 14 October 202619481958197019791991200120152024JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Plains meeting 30 C (86 F).
First to last qualifying date each year at Plains
YearFirst dateLast date
19481948-04-111948-10-16
19491949-04-271949-10-09
19501950-04-041950-11-01
19511951-04-151951-10-16
19531953-04-221953-10-17
19541954-04-041954-10-21
19551955-04-161955-10-20
19561956-04-261956-10-15
19571957-04-191957-10-05
19581958-05-071958-09-25
19591959-04-061959-10-26
19601960-04-071960-10-09
19611961-04-191961-10-22
19621962-04-131962-10-15
19651965-04-211965-10-16
19671967-03-281967-10-13
19681968-05-021968-10-30
19691969-04-081969-10-11
19701970-05-081970-10-14
19711971-03-281971-10-16
19721972-03-121972-10-18
19731973-05-091973-11-02
19741974-04-191974-09-12
19751975-04-171975-11-09
19761976-04-151976-09-24
19771977-04-091977-10-21
19781978-04-011978-10-19
19791979-04-161979-10-22
19821982-05-181982-10-08
19831983-04-291983-09-29
19841984-05-041984-11-28
19851985-04-041985-10-09
19871987-04-191987-10-31
19881988-04-051988-11-03
19891989-03-121989-10-16
19901990-04-151990-09-28
19911991-04-081991-10-18
19921992-04-111992-10-14
19931993-04-121993-10-15
19941994-04-141994-10-05
19951995-03-191995-10-18
19961996-04-091996-10-15
19971997-03-211997-10-19
19991999-04-201999-10-16
20002000-04-042000-10-06
20012001-04-052001-10-22
20042004-03-252004-10-22
20052005-04-202005-10-19
20092009-03-052009-10-21
20102010-03-312010-10-31
20112011-03-172011-10-26
20122012-03-192012-10-24
20132013-03-162013-10-11
20142014-04-102014-10-27
20152015-04-092015-10-16
20162016-04-062016-11-02
20172017-02-112017-10-15
20182018-03-232018-10-06
20192019-04-102019-10-08
20202020-03-272020-10-23
20212021-04-062021-10-27
20222022-03-272022-10-01
20232023-04-132023-10-22
20242024-04-142024-10-30
20252025-03-262025-11-16
20262026-02-262026-10-14

Every Fixed Threshold

Fixed thresholds at Plains
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days661472011152
35 C (95 F): Days6690201191
40 C (104 F): Days401120239
90 F (32.2 C): Days661252011122
100 F (37.8 C): Days6447201138
110 F (43.3 C): Days2219941
0 C (32 F): Ice days (max651420154
0 C (32 F): Frost days (min60129197337
-10 C (14 F): Days with min592219514
-20 C (-4 F): Days with min7219481
20 C (68 F): Tropical nights (min5863201183
10 mm (0.39 in): Days with 10 mm or more rain712419268
25 mm (0.98 in): Days with 25 mm or more rain691019743
50 mm (1.97 in): Days with 50 mm or more rain37419821
100 mm (3.94 in): Days with 100 mm or more rain8219551
10 cm (3.9 in): Days with 10 cm or more snowfall21219261
25 cm (9.8 in): Days with 25 cm or more snowfall3119611
50 cm (19.7 in): Days with 50 cm or more snowfall1119611

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1948.

Download the Data

  • Data for Plains 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).