Built 2026-10-18 (18 October 2026)

Startup 1 E Threshold Days by Year

16 fixed thresholds counted per year at Startup 1 E (USC00458034): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Startup 1 E Thresholds

  • Startup 1 E: days with a maximum temperature at or above 30 C (86 F) in 92 years, most in 1958 with 44.
  • Startup 1 E: days with 10 mm (0.39 in) or more of precipitation in 91 years, most in 1959 with 82.
  • Startup 1 E: days with 25 mm (0.98 in) or more of precipitation in 91 years, most in 1996 with 26.
  • Startup 1 E: nights with a minimum temperature at or below 0 C (32 F) in 89 years, most in 1943 with 101.
  • 16 fixed thresholds have at least one qualifying day at Startup 1 E.
92 years with a qualifying day
Days at or above 30 C (86 F) per year at Startup 1 E Days per year at Startup 1 E with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 44 in 1958. 02040601924: 111925: 161926: 231927: 191928: 141929: 181930: 141931: 201932: 151933: 171934: 141935: 181936: 71937: 101939: 161940: 121941: 121943: 41944: 161946: 81949: 71950: 101952: 171953: 101954: 21955: 91956: 191957: 31958: 441959: 161960: 171961: 211962: 101963: 111964: 51965: 171966: 31967: 321968: 151969: 91970: 111971: 201972: 121973: 101974: 161975: 101976: 31977: 151978: 91979: 91980: 31981: 131982: 121983: 41984: 61986: 131987: 161988: 131989: 71990: 151991: 111992: 171993: 51995: 91996: 151997: 111998: 141999: 32002: 92003: 242004: 162005: 112006: 202007: 122008: 132010: 132011: 32012: 92013: 92014: 212015: 302016: 152017: 272018: 272019: 82020: 162021: 182022: 242023: 252024: 202025: 252026: 161924193419491960197019801991200420152025
Days per year at Startup 1 E with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 44 in 1958.
Days at or above 30 C (86 F) per year at Startup 1 E
YearDaysDecade average
19241116.8
19251616.8
19262316.8
19271916.8
19281416.8
19291816.8
19301414.6
19312014.6
19321514.6
19331714.6
19341414.6
19351814.6
1936714.6
19371014.6
19391614.6
1940129.8
1941129.8
194349.8
1944169.8
194689.8
194979.8
19501014.4
19521714.4
19531014.4
1954214.4
1955914.4
19561914.4
1957314.4
19584414.4
19591614.4
19601714
19612114
19621014
19631114
1964514
19651714
1966314
19673214
19681514
1969914
19701111.5
19712011.5
19721211.5
19731011.5
19741611.5
19751011.5
1976311.5
19771511.5
1978911.5
1979911.5
198039.7
1981139.7
1982129.7
198349.7
198469.7
1986139.7
1987169.7
1988139.7
198979.7
19901511.1
19911111.1
19921711.1
1993511.1
1995911.1
19961511.1
19971111.1
19981411.1
1999311.1
2002915
20032415
20041615
20051115
20062015
20071215
20081315
20101316.2
2011316.2
2012916.2
2013916.2
20142116.2
20153016.2
20161516.2
20172716.2
20182716.2
2019816.2
20201620.6
20211820.6
20222420.6
20232520.6
20242020.6
20252520.6
20261620.6
First to last qualifying date each year at Startup 1 E For each year, a bar from the first to the last day at Startup 1 E meeting 30 C (86 F). 1924: 12 May 1924 to 28 September 19241925: 15 May 1925 to 23 September 19251926: 14 April 1926 to 25 August 19261927: 20 June 1927 to 18 August 19271928: 20 May 1928 to 1 September 19281929: 1 July 1929 to 16 September 19291930: 6 June 1930 to 2 September 19301931: 27 April 1931 to 28 August 19311932: 9 June 1932 to 4 October 19321933: 12 June 1933 to 27 August 19331934: 19 April 1934 to 3 September 19341935: 6 June 1935 to 9 September 19351936: 12 May 1936 to 10 October 19361937: 2 May 1937 to 14 September 19371939: 14 May 1939 to 22 August 19391940: 11 June 1940 to 23 September 19401941: 10 May 1941 to 19 August 19411943: 15 August 1943 to 24 September 19431944: 27 May 1944 to 11 September 19441946: 2 May 1946 to 10 September 19461949: 9 July 1949 to 5 September 19491950: 3 June 1950 to 1 September 19501952: 28 May 1952 to 23 September 19521953: 5 May 1953 to 11 September 19531954: 25 June 1954 to 6 July 19541955: 8 June 1955 to 6 September 19551956: 17 May 1956 to 6 September 19561957: 13 September 1957 to 23 September 19571958: 17 May 1958 to 8 September 19581959: 13 May 1959 to 1 August 19591960: 5 July 1960 to 10 August 19601961: 19 May 1961 to 14 October 19611962: 23 July 1962 to 16 August 19621963: 18 May 1963 to 10 September 19631964: 31 May 1964 to 24 August 19641965: 30 June 1965 to 18 August 19651966: 20 August 1966 to 22 August 19661967: 17 June 1967 to 28 September 19671968: 18 May 1968 to 6 September 19681969: 8 May 1969 to 23 July 19691970: 1 June 1970 to 19 July 19701971: 11 May 1971 to 20 August 19711972: 28 May 1972 to 4 September 19721973: 14 May 1973 to 6 September 19731974: 29 July 1974 to 25 September 19741975: 2 June 1975 to 2 October 19751976: 2 May 1976 to 21 September 19761977: 18 June 1977 to 18 August 19771978: 20 July 1978 to 10 August 19781979: 3 June 1979 to 15 September 19791980: 22 July 1980 to 6 October 19801981: 4 July 1981 to 17 September 19811982: 18 June 1982 to 3 September 19821983: 25 May 1983 to 31 July 19831984: 22 June 1984 to 26 August 19841986: 31 May 1986 to 6 September 19861987: 28 April 1987 to 2 October 19871988: 22 May 1988 to 15 September 19881989: 4 June 1989 to 23 September 19891990: 6 May 1990 to 23 September 19901991: 3 July 1991 to 12 October 19911992: 5 May 1992 to 30 September 19921993: 24 May 1993 to 7 September 19931995: 29 June 1995 to 25 September 19951996: 13 July 1996 to 30 August 19961997: 14 May 1997 to 26 September 19971998: 17 July 1998 to 6 September 19981999: 13 June 1999 to 10 July 19992002: 14 June 2002 to 30 August 20022003: 6 June 2003 to 29 September 20032004: 12 April 2004 to 20 August 20042005: 27 May 2005 to 20 August 20052006: 17 May 2006 to 3 September 20062007: 16 May 2007 to 13 September 20072008: 17 May 2008 to 18 August 20082010: 8 July 2010 to 26 August 20102011: 22 August 2011 to 12 September 20112012: 9 July 2012 to 9 September 20122013: 7 May 2013 to 12 September 20132014: 2 May 2014 to 15 September 20142015: 9 June 2015 to 28 August 20152016: 19 April 2016 to 27 August 20162017: 28 May 2017 to 29 September 20172018: 27 April 2018 to 23 August 20182019: 12 June 2019 to 29 August 20192020: 11 May 2020 to 11 September 20202021: 2 June 2021 to 16 August 20212022: 26 June 2022 to 17 October 20222023: 12 May 2023 to 8 October 20232024: 6 July 2024 to 8 September 20242025: 29 May 2025 to 17 September 20252026: 13 May 2026 to 26 August 202619241936195419661978199120062019JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Startup 1 E meeting 30 C (86 F).
First to last qualifying date each year at Startup 1 E
YearFirst dateLast date
19241924-05-121924-09-28
19251925-05-151925-09-23
19261926-04-141926-08-25
19271927-06-201927-08-18
19281928-05-201928-09-01
19291929-07-011929-09-16
19301930-06-061930-09-02
19311931-04-271931-08-28
19321932-06-091932-10-04
19331933-06-121933-08-27
19341934-04-191934-09-03
19351935-06-061935-09-09
19361936-05-121936-10-10
19371937-05-021937-09-14
19391939-05-141939-08-22
19401940-06-111940-09-23
19411941-05-101941-08-19
19431943-08-151943-09-24
19441944-05-271944-09-11
19461946-05-021946-09-10
19491949-07-091949-09-05
19501950-06-031950-09-01
19521952-05-281952-09-23
19531953-05-051953-09-11
19541954-06-251954-07-06
19551955-06-081955-09-06
19561956-05-171956-09-06
19571957-09-131957-09-23
19581958-05-171958-09-08
19591959-05-131959-08-01
19601960-07-051960-08-10
19611961-05-191961-10-14
19621962-07-231962-08-16
19631963-05-181963-09-10
19641964-05-311964-08-24
19651965-06-301965-08-18
19661966-08-201966-08-22
19671967-06-171967-09-28
19681968-05-181968-09-06
19691969-05-081969-07-23
19701970-06-011970-07-19
19711971-05-111971-08-20
19721972-05-281972-09-04
19731973-05-141973-09-06
19741974-07-291974-09-25
19751975-06-021975-10-02
19761976-05-021976-09-21
19771977-06-181977-08-18
19781978-07-201978-08-10
19791979-06-031979-09-15
19801980-07-221980-10-06
19811981-07-041981-09-17
19821982-06-181982-09-03
19831983-05-251983-07-31
19841984-06-221984-08-26
19861986-05-311986-09-06
19871987-04-281987-10-02
19881988-05-221988-09-15
19891989-06-041989-09-23
19901990-05-061990-09-23
19911991-07-031991-10-12
19921992-05-051992-09-30
19931993-05-241993-09-07
19951995-06-291995-09-25
19961996-07-131996-08-30
19971997-05-141997-09-26
19981998-07-171998-09-06
19991999-06-131999-07-10
20022002-06-142002-08-30
20032003-06-062003-09-29
20042004-04-122004-08-20
20052005-05-272005-08-20
20062006-05-172006-09-03
20072007-05-162007-09-13
20082008-05-172008-08-18
20102010-07-082010-08-26
20112011-08-222011-09-12
20122012-07-092012-09-09
20132013-05-072013-09-12
20142014-05-022014-09-15
20152015-06-092015-08-28
20162016-04-192016-08-27
20172017-05-282017-09-29
20182018-04-272018-08-23
20192019-06-122019-08-29
20202020-05-112020-09-11
20212021-06-022021-08-16
20222022-06-262022-10-17
20232023-05-122023-10-08
20242024-07-062024-09-08
20252025-05-292025-09-17
20262026-05-132026-08-26

Every Fixed Threshold

Fixed thresholds at Startup 1 E
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days9244195816
35 C (95 F): Days48519582
40 C (104 F): Days2119251
90 F (32.2 C): Days852219584
100 F (37.8 C): Days5320213
0 C (32 F): Ice days (max562319501
0 C (32 F): Frost days (min89101194341
-10 C (14 F): Days with min402019501
-20 C (-4 F): Days with min1319503
20 C (68 F): Tropical nights (min4219841
10 mm (0.39 in): Days with 10 mm or more rain9182195931
25 mm (0.98 in): Days with 25 mm or more rain9126199610
50 mm (1.97 in): Days with 50 mm or more rain62519331
100 mm (3.94 in): Days with 100 mm or more rain2120031
10 cm (3.9 in): Days with 10 cm or more snowfall21619503
25 cm (9.8 in): Days with 25 cm or more snowfall3119501

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1924.

Download the Data

  • Data for Startup 1 E 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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2026-10-12).