Built 2026-10-19 (19 October 2026)

Viking Threshold Days by Year (CA003016840)

16 fixed thresholds counted per year at Viking (CA003016840): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Viking Thresholds

  • Viking: days with a maximum temperature at or above 30 C (86 F) in 49 years, most in 1936 with 22.
  • Viking: days with a maximum temperature at or below 0 C (32 F) in 49 years, most in 1951 with 144.
  • Viking: nights with a minimum temperature at or below 0 C (32 F) in 49 years, most in 1928 with 228.
  • Viking: nights with a minimum temperature at or below -10 C (14 F) in 49 years, most in 1951 with 142.
  • 16 fixed thresholds have at least one qualifying day at Viking.
49 years with a qualifying day
Days at or above 30 C (86 F) per year at Viking Days per year at Viking with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 22 in 1936. 01020301924: 91925: 61926: 111927: 51928: 71930: 51931: 11932: 101933: 121934: 101935: 91936: 221937: 111938: 111939: 161940: 81941: 171942: 51943: 21944: 41945: 121946: 91947: 151948: 51949: 111950: 131951: 11952: 21953: 31954: 41955: 51956: 41957: 41958: 111959: 61962: 21963: 51964: 91965: 101966: 51967: 91968: 31977: 41978: 81979: 51980: 41981: 141982: 31983: 41924193019351940194519501955196219671980
Days per year at Viking with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 22 in 1936.
Days at or above 30 C (86 F) per year at Viking
YearDaysDecade average
192497.6
192567.6
1926117.6
192757.6
192877.6
1930510.7
1931110.7
19321010.7
19331210.7
19341010.7
1935910.7
19362210.7
19371110.7
19381110.7
19391610.7
194088.8
1941178.8
194258.8
194328.8
194448.8
1945128.8
194698.8
1947158.8
194858.8
1949118.8
1950135.3
195115.3
195225.3
195335.3
195445.3
195555.3
195645.3
195745.3
1958115.3
195965.3
196226.1
196356.1
196496.1
1965106.1
196656.1
196796.1
196836.1
197745.7
197885.7
197955.7
198046.3
1981146.3
198236.3
198346.3
First to last qualifying date each year at Viking For each year, a bar from the first to the last day at Viking meeting 30 C (86 F). 1924: 14 May 1924 to 25 July 19241925: 11 July 1925 to 2 August 19251926: 26 June 1926 to 24 August 19261927: 24 July 1927 to 11 August 19271928: 21 May 1928 to 10 August 19281930: 7 June 1930 to 14 July 19301931: 22 July 1931 to 22 July 19311932: 22 July 1932 to 6 September 19321933: 13 June 1933 to 18 August 19331934: 25 May 1934 to 6 September 19341935: 28 June 1935 to 22 August 19351936: 26 May 1936 to 9 August 19361937: 2 June 1937 to 18 September 19371938: 19 June 1938 to 20 September 19381939: 28 April 1939 to 25 August 19391940: 23 May 1940 to 31 August 19401941: 23 May 1941 to 11 August 19411942: 2 July 1942 to 17 August 19421943: 21 July 1943 to 25 September 19431944: 30 June 1944 to 11 September 19441945: 29 May 1945 to 16 August 19451946: 20 July 1946 to 23 August 19461947: 1 July 1947 to 2 August 19471948: 6 July 1948 to 2 September 19481949: 6 June 1949 to 9 September 19491950: 13 June 1950 to 23 September 19501951: 4 August 1951 to 4 August 19511952: 25 September 1952 to 26 September 19521953: 7 May 1953 to 13 July 19531954: 5 July 1954 to 19 July 19541955: 14 July 1955 to 7 August 19551956: 1 June 1956 to 20 July 19561957: 13 July 1957 to 26 July 19571958: 26 June 1958 to 25 August 19581959: 16 May 1959 to 1 August 19591962: 25 June 1962 to 30 June 19621963: 7 July 1963 to 9 September 19631964: 27 June 1964 to 18 August 19641965: 11 June 1965 to 22 August 19651966: 26 May 1966 to 18 September 19661967: 26 June 1967 to 5 September 19671968: 4 July 1968 to 9 July 19681977: 26 April 1977 to 21 July 19771978: 4 June 1978 to 9 August 19781979: 29 June 1979 to 30 August 19791980: 2 May 1980 to 6 September 19801981: 3 July 1981 to 19 September 19811982: 20 June 1982 to 30 July 19821983: 2 August 1983 to 10 August 19831924193219391946195319621977JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Viking meeting 30 C (86 F).
First to last qualifying date each year at Viking
YearFirst dateLast date
19241924-05-141924-07-25
19251925-07-111925-08-02
19261926-06-261926-08-24
19271927-07-241927-08-11
19281928-05-211928-08-10
19301930-06-071930-07-14
19311931-07-221931-07-22
19321932-07-221932-09-06
19331933-06-131933-08-18
19341934-05-251934-09-06
19351935-06-281935-08-22
19361936-05-261936-08-09
19371937-06-021937-09-18
19381938-06-191938-09-20
19391939-04-281939-08-25
19401940-05-231940-08-31
19411941-05-231941-08-11
19421942-07-021942-08-17
19431943-07-211943-09-25
19441944-06-301944-09-11
19451945-05-291945-08-16
19461946-07-201946-08-23
19471947-07-011947-08-02
19481948-07-061948-09-02
19491949-06-061949-09-09
19501950-06-131950-09-23
19511951-08-041951-08-04
19521952-09-251952-09-26
19531953-05-071953-07-13
19541954-07-051954-07-19
19551955-07-141955-08-07
19561956-06-011956-07-20
19571957-07-131957-07-26
19581958-06-261958-08-25
19591959-05-161959-08-01
19621962-06-251962-06-30
19631963-07-071963-09-09
19641964-06-271964-08-18
19651965-06-111965-08-22
19661966-05-261966-09-18
19671967-06-261967-09-05
19681968-07-041968-07-09
19771977-04-261977-07-21
19781978-06-041978-08-09
19791979-06-291979-08-30
19801980-05-021980-09-06
19811981-07-031981-09-19
19821982-06-201982-07-30
19831983-08-021983-08-10

Every Fixed Threshold

Fixed thresholds at Viking
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days492219364
35 C (95 F): Days10219241
90 F (32.2 C): Days37919391
100 F (37.8 C): Days2119241
0 C (32 F): Ice days (max491441951115
0 C (32 F): Frost days (min492281928190
-10 C (14 F): Days with min49142195197
-20 C (-4 F): Days with min4979193335
-30 C (-22 F): Days with min4940193612
-40 C (-40 F): Days with min351419361
20 C (68 F): Tropical nights (min2119531
10 mm (0.39 in): Days with 10 mm or more rain3921194611
25 mm (0.98 in): Days with 25 mm or more rain31519424
50 mm (1.97 in): Days with 50 mm or more rain3219781
10 cm (3.9 in): Days with 10 cm or more snowfall271119333
25 cm (9.8 in): Days with 25 cm or more snowfall3219331

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 Viking 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).