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Built 2026-10-19 (19 October 2026)

Linneus Threshold Days by Year (USC00234978)

14 fixed thresholds counted per year at Linneus (USC00234978): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Linneus Thresholds

  • Linneus: days with 10 mm (0.39 in) or more of precipitation in 33 years, most in 1969 with 41.
  • Linneus: days with 25 mm (0.98 in) or more of precipitation in 33 years, most in 1944 with 16.
  • Linneus: days with 50 mm (1.97 in) or more of precipitation in 26 years, most in 1944 with 6.
  • Linneus: days with 10 cm (3.9 in) or more of snowfall in 25 years, most in 1960 with 5.
  • 14 fixed thresholds have at least one qualifying day at Linneus.
33 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Linneus Days per year at Linneus with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 41 in 1969. 02040601908: 301933: 271934: 211935: 381936: 201937: 251938: 321939: 301940: 241941: 321942: 371943: 271944: 361947: 381948: 251949: 321950: 161951: 321952: 251953: 191954: 301955: 221956: 201957: 281958: 291959: 261960: 221961: 401962: 231966: 181967: 391968: 351969: 41190819361940194419501954195819621969
Days per year at Linneus with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 41 in 1969.
Days with 10 mm (0.39 in) or more of precipitation per year at Linneus
YearDaysDecade average
19083030
19332727.6
19342127.6
19353827.6
19362027.6
19372527.6
19383227.6
19393027.6
19402431.4
19413231.4
19423731.4
19432731.4
19443631.4
19473831.4
19482531.4
19493231.4
19501624.7
19513224.7
19522524.7
19531924.7
19543024.7
19552224.7
19562024.7
19572824.7
19582924.7
19592624.7
19602231.1
19614031.1
19622331.1
19661831.1
19673931.1
19683531.1
19694131.1
First to last qualifying date each year at Linneus For each year, a bar from the first to the last day at Linneus meeting 10 mm (0.39 in). 1908: 14 February 1908 to 29 November 19081933: 18 January 1933 to 19 December 19331934: 3 January 1934 to 1 December 19341935: 8 January 1935 to 27 November 19351936: 25 January 1936 to 27 December 19361937: 8 January 1937 to 14 December 19371938: 24 January 1938 to 3 December 19381939: 15 January 1939 to 24 December 19391940: 14 January 1940 to 16 December 19401941: 1 January 1941 to 26 December 19411942: 5 February 1942 to 27 December 19421943: 3 February 1943 to 10 December 19431944: 28 January 1944 to 10 December 19441947: 7 March 1947 to 4 December 19471948: 1 January 1948 to 5 December 19481949: 10 January 1949 to 31 December 19491950: 13 January 1950 to 30 August 19501951: 2 January 1951 to 12 November 19511952: 3 February 1952 to 19 December 19521953: 5 February 1953 to 3 December 19531954: 20 January 1954 to 14 October 19541955: 5 January 1955 to 6 October 19551956: 8 February 1956 to 21 November 19561957: 22 January 1957 to 25 December 19571958: 27 February 1958 to 17 November 19581959: 9 March 1959 to 28 December 19591960: 14 January 1960 to 11 December 19601961: 18 February 1961 to 21 November 19611962: 26 January 1962 to 16 November 19621966: 12 March 1966 to 9 December 19661967: 26 January 1967 to 10 December 19671968: 1 February 1968 to 27 December 19681969: 17 January 1969 to 7 December 19691908193719421949195419591967JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Linneus meeting 10 mm (0.39 in).
First to last qualifying date each year at Linneus
YearFirst dateLast date
19081908-02-141908-11-29
19331933-01-181933-12-19
19341934-01-031934-12-01
19351935-01-081935-11-27
19361936-01-251936-12-27
19371937-01-081937-12-14
19381938-01-241938-12-03
19391939-01-151939-12-24
19401940-01-141940-12-16
19411941-01-011941-12-26
19421942-02-051942-12-27
19431943-02-031943-12-10
19441944-01-281944-12-10
19471947-03-071947-12-04
19481948-01-011948-12-05
19491949-01-101949-12-31
19501950-01-131950-08-30
19511951-01-021951-11-12
19521952-02-031952-12-19
19531953-02-051953-12-03
19541954-01-201954-10-14
19551955-01-051955-10-06
19561956-02-081956-11-21
19571957-01-221957-12-25
19581958-02-271958-11-17
19591959-03-091959-12-28
19601960-01-141960-12-11
19611961-02-181961-11-21
19621962-01-261962-11-16
19661966-03-121966-12-09
19671967-01-261967-12-10
19681968-02-011968-12-27
19691969-01-171969-12-07

Every Fixed Threshold

Fixed thresholds at Linneus
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days170190870
35 C (95 F): Days1319083
90 F (32.2 C): Days132190832
0 C (32 F): Ice days (max114190814
0 C (32 F): Frost days (min11251908125
-10 C (14 F): Days with min119190819
20 C (68 F): Tropical nights (min124190824
10 mm (0.39 in): Days with 10 mm or more rain3341196941
25 mm (0.98 in): Days with 25 mm or more rain3316194414
50 mm (1.97 in): Days with 50 mm or more rain26619441
100 mm (3.94 in): Days with 100 mm or more rain6119391
200 mm (7.87 in): Days with 200 mm or more rain1119581
10 cm (3.9 in): Days with 10 cm or more snowfall25519601
25 cm (9.8 in): Days with 25 cm or more snowfall3119421

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1908.

Download the Data

  • Data for Linneus 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).