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Built 2026-10-18 (18 October 2026)

Saint John Threshold Days by Year

3 fixed thresholds counted per year at Saint John (USC00047656): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Saint John Thresholds

  • Saint John: days with 10 mm (0.39 in) or more of precipitation in 42 years, most in 1941 with 39.
  • Saint John: days with 25 mm (0.98 in) or more of precipitation in 41 years, most in 1940 with 13.
  • Saint John: days with 50 mm (1.97 in) or more of precipitation in 14 years, most in 1937 with 3.
  • 3 fixed thresholds have at least one qualifying day at Saint John.
42 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Saint John Days per year at Saint John with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 39 in 1941. 0102030401912: 101913: 181914: 241916: 131917: 101919: 121920: 171921: 191922: 221923: 81924: 121925: 161926: 201929: 81930: 121931: 211932: 101934: 111935: 221936: 151937: 211938: 261939: 71940: 311941: 391942: 231943: 141944: 181945: 201946: 71948: 171949: 131950: 201951: 231952: 271953: 91954: 241956: 151958: 241960: 191961: 191962: 17191219191924193119371942194819531961
Days per year at Saint John with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 39 in 1941.
Days with 10 mm (0.39 in) or more of precipitation per year at Saint John
YearDaysDecade average
19121014.5
19131814.5
19142414.5
19161314.5
19171014.5
19191214.5
19201715.3
19211915.3
19222215.3
1923815.3
19241215.3
19251615.3
19262015.3
1929815.3
19301216.1
19312116.1
19321016.1
19341116.1
19352216.1
19361516.1
19372116.1
19382616.1
1939716.1
19403120.2
19413920.2
19422320.2
19431420.2
19441820.2
19452020.2
1946720.2
19481720.2
19491320.2
19502020.3
19512320.3
19522720.3
1953920.3
19542420.3
19561520.3
19582420.3
19601918.3
19611918.3
19621718.3
First to last qualifying date each year at Saint John For each year, a bar from the first to the last day at Saint John meeting 10 mm (0.39 in). 1912: 6 March 1912 to 6 November 19121913: 13 January 1913 to 31 December 19131914: 7 January 1914 to 20 December 19141916: 2 January 1916 to 28 December 19161917: 2 January 1917 to 26 December 19171919: 20 January 1919 to 22 December 19191920: 28 February 1920 to 24 December 19201921: 17 January 1921 to 27 December 19211922: 2 January 1922 to 28 December 19221923: 16 January 1923 to 14 December 19231924: 26 January 1924 to 21 December 19241925: 24 January 1925 to 18 December 19251926: 28 January 1926 to 3 December 19261929: 2 February 1929 to 16 December 19291930: 5 January 1930 to 16 November 19301931: 1 January 1931 to 31 December 19311932: 15 January 1932 to 24 December 19321934: 1 January 1934 to 17 December 19341935: 4 January 1935 to 29 December 19351936: 1 January 1936 to 27 December 19361937: 11 January 1937 to 11 December 19371938: 2 January 1938 to 1 December 19381939: 5 January 1939 to 31 December 19391940: 1 January 1940 to 27 December 19401941: 4 January 1941 to 29 December 19411942: 7 January 1942 to 28 December 19421943: 20 January 1943 to 30 December 19431944: 5 January 1944 to 28 December 19441945: 31 January 1945 to 28 December 19451946: 21 February 1946 to 6 December 19461948: 5 February 1948 to 27 December 19481949: 20 January 1949 to 15 December 19491950: 8 January 1950 to 14 December 19501951: 10 January 1951 to 27 December 19511952: 6 January 1952 to 30 December 19521953: 6 January 1953 to 14 November 19531954: 16 January 1954 to 10 December 19541956: 1 January 1956 to 30 October 19561958: 2 January 1958 to 23 May 19581960: 10 January 1960 to 2 December 19601961: 23 January 1961 to 2 December 19611962: 20 January 1962 to 18 December 19621912192019261935194119481954JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Saint John meeting 10 mm (0.39 in).
First to last qualifying date each year at Saint John
YearFirst dateLast date
19121912-03-061912-11-06
19131913-01-131913-12-31
19141914-01-071914-12-20
19161916-01-021916-12-28
19171917-01-021917-12-26
19191919-01-201919-12-22
19201920-02-281920-12-24
19211921-01-171921-12-27
19221922-01-021922-12-28
19231923-01-161923-12-14
19241924-01-261924-12-21
19251925-01-241925-12-18
19261926-01-281926-12-03
19291929-02-021929-12-16
19301930-01-051930-11-16
19311931-01-011931-12-31
19321932-01-151932-12-24
19341934-01-011934-12-17
19351935-01-041935-12-29
19361936-01-011936-12-27
19371937-01-111937-12-11
19381938-01-021938-12-01
19391939-01-051939-12-31
19401940-01-011940-12-27
19411941-01-041941-12-29
19421942-01-071942-12-28
19431943-01-201943-12-30
19441944-01-051944-12-28
19451945-01-311945-12-28
19461946-02-211946-12-06
19481948-02-051948-12-27
19491949-01-201949-12-15
19501950-01-081950-12-14
19511951-01-101951-12-27
19521952-01-061952-12-30
19531953-01-061953-11-14
19541954-01-161954-12-10
19561956-01-011956-10-30
19581958-01-021958-05-23
19601960-01-101960-12-02
19611961-01-231961-12-02
19621962-01-201962-12-18

Every Fixed Threshold

Fixed thresholds at Saint John
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain4239194117
25 mm (0.98 in): Days with 25 mm or more rain411319405
50 mm (1.97 in): Days with 50 mm or more rain14319372

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1912.

Download the Data

  • Data for Saint John 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).