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Built 2026-10-19 (19 October 2026)

Jenner Threshold Days by Year (CA003023560)

17 fixed thresholds counted per year at Jenner (CA003023560): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Jenner Thresholds

  • Jenner: nights with a minimum temperature at or below 0 C (32 F) in 39 years, most in 1946 with 248.
  • Jenner: nights with a minimum temperature at or below -10 C (14 F) in 39 years, most in 1948 with 130.
  • Jenner: nights with a minimum temperature at or below -20 C (-4 F) in 39 years, most in 1955 with 75.
  • Jenner: nights with a minimum temperature at or below -30 C (-22 F) in 39 years, most in 1916 with 35.
  • 17 fixed thresholds have at least one qualifying day at Jenner.
38 years with a qualifying day
Days at or above 30 C (86 F) per year at Jenner Days per year at Jenner with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 68 in 1917. 0204060801916: 381917: 681919: 331924: 161925: 271926: 261927: 31928: 181929: 311930: 311932: 231933: 291934: 341935: 181936: 471937: 341938: 261939: 291940: 251941: 281942: 141943: 231944: 281945: 261946: 201947: 221948: 251949: 211950: 281951: 161952: 181953: 171954: 131955: 271956: 141957: 181958: 311959: 211916192519291934193819421946195019541958
Days per year at Jenner with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 68 in 1917.
Days at or above 30 C (86 F) per year at Jenner
YearDaysDecade average
19163846.3
19176846.3
19193346.3
19241620.2
19252720.2
19262620.2
1927320.2
19281820.2
19293120.2
19303130.1
19322330.1
19332930.1
19343430.1
19351830.1
19364730.1
19373430.1
19382630.1
19392930.1
19402523.2
19412823.2
19421423.2
19432323.2
19442823.2
19452623.2
19462023.2
19472223.2
19482523.2
19492123.2
19502820.3
19511620.3
19521820.3
19531720.3
19541320.3
19552720.3
19561420.3
19571820.3
19583120.3
19592120.3
First to last qualifying date each year at Jenner For each year, a bar from the first to the last day at Jenner meeting 30 C (86 F). 1916: 6 May 1916 to 13 October 19161917: 10 May 1917 to 22 September 19171919: 19 May 1919 to 31 August 19191924: 16 May 1924 to 6 September 19241925: 19 May 1925 to 4 September 19251926: 4 June 1926 to 29 August 19261927: 24 July 1927 to 11 August 19271928: 21 May 1928 to 5 September 19281929: 27 June 1929 to 31 August 19291930: 7 June 1930 to 5 September 19301932: 13 June 1932 to 7 September 19321933: 13 June 1933 to 14 September 19331934: 15 May 1934 to 11 October 19341935: 22 June 1935 to 14 September 19351936: 14 May 1936 to 23 August 19361937: 2 June 1937 to 18 September 19371938: 20 June 1938 to 24 September 19381939: 28 April 1939 to 27 August 19391940: 10 May 1940 to 13 September 19401941: 23 May 1941 to 22 August 19411942: 22 May 1942 to 10 October 19421943: 29 June 1943 to 3 October 19431944: 15 May 1944 to 13 September 19441945: 21 June 1945 to 3 September 19451946: 26 May 1946 to 23 August 19461947: 2 July 1947 to 2 September 19471948: 7 June 1948 to 10 September 19481949: 11 May 1949 to 1 September 19491950: 11 June 1950 to 24 September 19501951: 23 May 1951 to 4 August 19511952: 6 June 1952 to 26 September 19521953: 7 May 1953 to 12 September 19531954: 4 July 1954 to 31 July 19541955: 13 July 1955 to 2 September 19551956: 1 June 1956 to 23 August 19561957: 4 June 1957 to 27 September 19571958: 28 May 1958 to 12 September 19581959: 19 June 1959 to 13 September 195919161926193219371942194719521957JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Jenner meeting 30 C (86 F).
First to last qualifying date each year at Jenner
YearFirst dateLast date
19161916-05-061916-10-13
19171917-05-101917-09-22
19191919-05-191919-08-31
19241924-05-161924-09-06
19251925-05-191925-09-04
19261926-06-041926-08-29
19271927-07-241927-08-11
19281928-05-211928-09-05
19291929-06-271929-08-31
19301930-06-071930-09-05
19321932-06-131932-09-07
19331933-06-131933-09-14
19341934-05-151934-10-11
19351935-06-221935-09-14
19361936-05-141936-08-23
19371937-06-021937-09-18
19381938-06-201938-09-24
19391939-04-281939-08-27
19401940-05-101940-09-13
19411941-05-231941-08-22
19421942-05-221942-10-10
19431943-06-291943-10-03
19441944-05-151944-09-13
19451945-06-211945-09-03
19461946-05-261946-08-23
19471947-07-021947-09-02
19481948-06-071948-09-10
19491949-05-111949-09-01
19501950-06-111950-09-24
19511951-05-231951-08-04
19521952-06-061952-09-26
19531953-05-071953-09-12
19541954-07-041954-07-31
19551955-07-131955-09-02
19561956-06-011956-08-23
19571957-06-041957-09-27
19581958-05-281958-09-12
19591959-06-191959-09-13

Every Fixed Threshold

Fixed thresholds at Jenner
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days3868191721
35 C (95 F): Days372319171
40 C (104 F): Days4519172
90 F (32.2 C): Days384319179
100 F (37.8 C): Days181119172
0 C (32 F): Ice days (max38116195164
0 C (32 F): Frost days (min392481946184
-10 C (14 F): Days with min39130194866
-20 C (-4 F): Days with min3975195541
-30 C (-22 F): Days with min3935191610
-40 C (-40 F): Days with min221119501
20 C (68 F): Tropical nights (min9219241
10 mm (0.39 in): Days with 10 mm or more rain3723191610
25 mm (0.98 in): Days with 25 mm or more rain24419561
50 mm (1.97 in): Days with 50 mm or more rain6119161
10 cm (3.9 in): Days with 10 cm or more snowfall29519263
25 cm (9.8 in): Days with 25 cm or more snowfall2119161

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1916.

Download the Data

  • Data for Jenner 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).