Built 2026-10-19 (19 October 2026)

Jefferson 2 E Threshold Days by Year (USC00314496)

17 fixed thresholds counted per year at Jefferson 2 E (USC00314496): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Jefferson 2 E Thresholds

  • Jefferson 2 E: days with 10 mm (0.39 in) or more of precipitation in 103 years, most in 2013 with 57.
  • Jefferson 2 E: days with 25 mm (0.98 in) or more of precipitation in 103 years, most in 2013 with 24.
  • Jefferson 2 E: days with 50 mm (1.97 in) or more of precipitation in 94 years, most in 1994 with 9.
  • Jefferson 2 E: days with a maximum temperature at or below 0 C (32 F) in 91 years, most in 2010 with 42.
  • 17 fixed thresholds have at least one qualifying day at Jefferson 2 E.
88 years with a qualifying day
Days at or above 30 C (86 F) per year at Jefferson 2 E Days per year at Jefferson 2 E with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 43 in 1925. 02040601903: 121904: 31910: 11911: 281912: 71913: 251914: 351915: 61916: 21917: 31918: 101919: 91920: 41921: 131922: 61923: 51924: 181925: 431926: 231927: 231934: 261935: 71936: 361937: 121938: 21939: 11940: 41941: 111942: 51943: 51944: 21966: 71968: 111969: 61970: 91971: 11972: 41973: 21975: 41976: 21977: 151978: 71979: 11980: 171981: 61983: 211984: 21985: 41986: 141987: 201988: 251989: 31990: 51991: 81992: 61993: 301994: 81995: 231996: 111997: 121998: 251999: 142000: 92001: 82002: 252003: 42004: 12005: 222006: 172007: 312008: 152009: 12010: 362011: 212012: 152013: 22014: 62015: 82016: 232017: 52018: 202019: 152021: 102022: 132023: 102024: 192025: 202026: 251903191719261941197219831992200120102019
Days per year at Jefferson 2 E with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 43 in 1925.
Days at or above 30 C (86 F) per year at Jefferson 2 E
YearDaysDecade average
1903127.5
190437.5
1910112.6
19112812.6
1912712.6
19132512.6
19143512.6
1915612.6
1916212.6
1917312.6
19181012.6
1919912.6
1920416.9
19211316.9
1922616.9
1923516.9
19241816.9
19254316.9
19262316.9
19272316.9
19342614
1935714
19363614
19371214
1938214
1939114
194045.4
1941115.4
194255.4
194355.4
194425.4
196678
1968118
196968
197095
197115
197245
197325
197545
197625
1977155
197875
197915
19801712.4
1981612.4
19832112.4
1984212.4
1985412.4
19861412.4
19872012.4
19882512.4
1989312.4
1990514.2
1991814.2
1992614.2
19933014.2
1994814.2
19952314.2
19961114.2
19971214.2
19982514.2
19991414.2
2000913.3
2001813.3
20022513.3
2003413.3
2004113.3
20052213.3
20061713.3
20073113.3
20081513.3
2009113.3
20103615.1
20112115.1
20121515.1
2013215.1
2014615.1
2015815.1
20162315.1
2017515.1
20182015.1
20191515.1
20211016.2
20221316.2
20231016.2
20241916.2
20252016.2
20262516.2
First to last qualifying date each year at Jefferson 2 E For each year, a bar from the first to the last day at Jefferson 2 E meeting 30 C (86 F). 1903: 22 May 1903 to 28 August 19031904: 18 July 1904 to 25 August 19041910: 25 July 1910 to 25 July 19101911: 10 May 1911 to 24 August 19111912: 13 June 1912 to 6 September 19121913: 5 May 1913 to 28 August 19131914: 26 May 1914 to 7 September 19141915: 26 April 1915 to 31 July 19151916: 28 May 1916 to 7 September 19161917: 27 June 1917 to 30 July 19171918: 30 May 1918 to 13 August 19181919: 5 July 1919 to 12 October 19191920: 11 June 1920 to 24 July 19201921: 14 June 1921 to 17 September 19211922: 16 June 1922 to 4 September 19221923: 12 July 1923 to 15 August 19231924: 18 June 1924 to 1 September 19241925: 24 April 1925 to 21 September 19251926: 8 June 1926 to 17 September 19261927: 12 June 1927 to 18 September 19271934: 7 May 1934 to 13 August 19341935: 17 June 1935 to 12 August 19351936: 26 May 1936 to 28 September 19361937: 1 June 1937 to 19 August 19371938: 16 August 1938 to 18 October 19381939: 9 September 1939 to 9 September 19391940: 26 July 1940 to 29 July 19401941: 21 May 1941 to 6 October 19411942: 17 July 1942 to 3 August 19421943: 6 June 1943 to 2 September 19431944: 18 June 1944 to 19 June 19441966: 29 June 1966 to 28 July 19661968: 30 June 1968 to 24 August 19681969: 8 June 1969 to 19 July 19691970: 22 May 1970 to 3 August 19701971: 27 June 1971 to 27 June 19711972: 21 July 1972 to 24 July 19721973: 22 July 1973 to 3 September 19731975: 24 August 1975 to 3 September 19751976: 23 July 1976 to 24 July 19761977: 6 July 1977 to 7 August 19771978: 27 June 1978 to 9 September 19781979: 9 August 1979 to 9 August 19791980: 28 June 1980 to 20 August 19801981: 25 June 1981 to 5 August 19811983: 2 July 1983 to 11 September 19831984: 11 July 1984 to 9 August 19841985: 4 June 1985 to 21 July 19851986: 6 July 1986 to 6 August 19861987: 8 July 1987 to 27 August 19871988: 23 June 1988 to 26 August 19881989: 26 June 1989 to 3 August 19891990: 9 July 1990 to 28 August 19901991: 29 May 1991 to 5 August 19911992: 9 July 1992 to 26 August 19921993: 9 June 1993 to 2 September 19931994: 17 June 1994 to 21 July 19941995: 11 June 1995 to 25 August 19951996: 19 May 1996 to 24 August 19961997: 21 June 1997 to 2 September 19971998: 16 May 1998 to 27 September 19981999: 10 June 1999 to 3 September 19992000: 13 May 2000 to 18 August 20002001: 15 June 2001 to 12 August 20012002: 12 June 2002 to 11 September 20022003: 25 June 2003 to 16 August 20032004: 2 August 2004 to 2 August 20042005: 7 June 2005 to 20 September 20052006: 29 May 2006 to 29 August 20062007: 18 June 2007 to 26 September 20072008: 5 June 2008 to 4 September 20082009: 27 June 2009 to 27 June 20092010: 20 June 2010 to 24 September 20102011: 23 May 2011 to 3 September 20112012: 27 May 2012 to 3 September 20122013: 18 July 2013 to 19 July 20132014: 14 May 2014 to 3 September 20142015: 12 June 2015 to 30 July 20152016: 15 June 2016 to 25 September 20162017: 16 June 2017 to 21 August 20172018: 14 May 2018 to 7 September 20182019: 26 May 2019 to 4 October 20192021: 7 July 2021 to 31 August 20212022: 9 June 2022 to 22 September 20222023: 27 July 2023 to 6 September 20232024: 22 June 2024 to 30 August 20242025: 22 June 2025 to 17 August 20252026: 16 April 2026 to 18 September 202619031919193619691981199320042015JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Jefferson 2 E meeting 30 C (86 F).
First to last qualifying date each year at Jefferson 2 E
YearFirst dateLast date
19031903-05-221903-08-28
19041904-07-181904-08-25
19101910-07-251910-07-25
19111911-05-101911-08-24
19121912-06-131912-09-06
19131913-05-051913-08-28
19141914-05-261914-09-07
19151915-04-261915-07-31
19161916-05-281916-09-07
19171917-06-271917-07-30
19181918-05-301918-08-13
19191919-07-051919-10-12
19201920-06-111920-07-24
19211921-06-141921-09-17
19221922-06-161922-09-04
19231923-07-121923-08-15
19241924-06-181924-09-01
19251925-04-241925-09-21
19261926-06-081926-09-17
19271927-06-121927-09-18
19341934-05-071934-08-13
19351935-06-171935-08-12
19361936-05-261936-09-28
19371937-06-011937-08-19
19381938-08-161938-10-18
19391939-09-091939-09-09
19401940-07-261940-07-29
19411941-05-211941-10-06
19421942-07-171942-08-03
19431943-06-061943-09-02
19441944-06-181944-06-19
19661966-06-291966-07-28
19681968-06-301968-08-24
19691969-06-081969-07-19
19701970-05-221970-08-03
19711971-06-271971-06-27
19721972-07-211972-07-24
19731973-07-221973-09-03
19751975-08-241975-09-03
19761976-07-231976-07-24
19771977-07-061977-08-07
19781978-06-271978-09-09
19791979-08-091979-08-09
19801980-06-281980-08-20
19811981-06-251981-08-05
19831983-07-021983-09-11
19841984-07-111984-08-09
19851985-06-041985-07-21
19861986-07-061986-08-06
19871987-07-081987-08-27
19881988-06-231988-08-26
19891989-06-261989-08-03
19901990-07-091990-08-28
19911991-05-291991-08-05
19921992-07-091992-08-26
19931993-06-091993-09-02
19941994-06-171994-07-21
19951995-06-111995-08-25
19961996-05-191996-08-24
19971997-06-211997-09-02
19981998-05-161998-09-27
19991999-06-101999-09-03
20002000-05-132000-08-18
20012001-06-152001-08-12
20022002-06-122002-09-11
20032003-06-252003-08-16
20042004-08-022004-08-02
20052005-06-072005-09-20
20062006-05-292006-08-29
20072007-06-182007-09-26
20082008-06-052008-09-04
20092009-06-272009-06-27
20102010-06-202010-09-24
20112011-05-232011-09-03
20122012-05-272012-09-03
20132013-07-182013-07-19
20142014-05-142014-09-03
20152015-06-122015-07-30
20162016-06-152016-09-25
20172017-06-162017-08-21
20182018-05-142018-09-07
20192019-05-262019-10-04
20212021-07-072021-08-31
20222022-06-092022-09-22
20232023-07-272023-09-06
20242024-06-222024-08-30
20252025-06-222025-08-17
20262026-04-162026-09-18

Every Fixed Threshold

Fixed thresholds at Jefferson 2 E
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days8843192525
35 C (95 F): Days6319252
90 F (32.2 C): Days431719258
0 C (32 F): Ice days (max9142201014
0 C (32 F): Frost days (min91155199774
-10 C (14 F): Days with min9138197713
-20 C (-4 F): Days with min28619701
20 C (68 F): Tropical nights (min43819342
25 C (77 F): Days with min1119431
10 mm (0.39 in): Days with 10 mm or more rain10357201333
25 mm (0.98 in): Days with 25 mm or more rain1032420139
50 mm (1.97 in): Days with 50 mm or more rain94919942
100 mm (3.94 in): Days with 100 mm or more rain24219161
200 mm (7.87 in): Days with 200 mm or more rain1120241
10 cm (3.9 in): Days with 10 cm or more snowfall71819601
25 cm (9.8 in): Days with 25 cm or more snowfall12219601
50 cm (19.7 in): Days with 50 cm or more snowfall1119981

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1903.

Download the Data

  • Data for Jefferson 2 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 2026-10-17 (17 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2026-10-17).