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Built 2026-10-19 (19 October 2026)

Leslie Canyon Threshold Days by Year (USC00024864)

4 fixed thresholds counted per year at Leslie Canyon (USC00024864): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Leslie Canyon Thresholds

  • Leslie Canyon: days with 10 mm (0.39 in) or more of precipitation in 41 years, most in 1931 with 23.
  • Leslie Canyon: days with 25 mm (0.98 in) or more of precipitation in 34 years, most in 1932 with 5.
  • Leslie Canyon: days with 50 mm (1.97 in) or more of precipitation in 9 years, most in 1919 with 1.
  • Leslie Canyon: days with 10 cm (3.9 in) or more of snowfall in 7 years, most in 1923 with 2.
  • 4 fixed thresholds have at least one qualifying day at Leslie Canyon.
41 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Leslie Canyon Days per year at Leslie Canyon with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 23 in 1931. 01020301917: 81918: 61919: 151920: 61921: 71922: 81923: 121924: 51925: 91926: 161927: 141928: 101929: 91930: 171931: 231932: 141933: 81934: 101936: 81937: 111938: 111939: 181940: 151941: 161942: 121944: 111945: 111946: 81947: 71948: 111949: 111950: 91951: 111952: 121953: 61954: 101955: 81956: 61957: 81958: 111959: 15191719221927193219381944194919541959
Days per year at Leslie Canyon with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 23 in 1931.
Days with 10 mm (0.39 in) or more of precipitation per year at Leslie Canyon
YearDaysDecade average
191789.7
191869.7
1919159.7
192069.6
192179.6
192289.6
1923129.6
192459.6
192599.6
1926169.6
1927149.6
1928109.6
192999.6
19301713.3
19312313.3
19321413.3
1933813.3
19341013.3
1936813.3
19371113.3
19381113.3
19391813.3
19401511.3
19411611.3
19421211.3
19441111.3
19451111.3
1946811.3
1947711.3
19481111.3
19491111.3
195099.6
1951119.6
1952129.6
195369.6
1954109.6
195589.6
195669.6
195789.6
1958119.6
1959159.6
First to last qualifying date each year at Leslie Canyon For each year, a bar from the first to the last day at Leslie Canyon meeting 10 mm (0.39 in). 1917: 14 January 1917 to 20 September 19171918: 21 June 1918 to 22 December 19181919: 26 April 1919 to 28 November 19191920: 4 January 1920 to 6 September 19201921: 27 February 1921 to 30 November 19211922: 24 March 1922 to 11 September 19221923: 16 April 1923 to 3 December 19231924: 28 March 1924 to 31 August 19241925: 20 June 1925 to 25 November 19251926: 2 February 1926 to 4 December 19261927: 27 June 1927 to 11 December 19271928: 10 May 1928 to 31 October 19281929: 3 July 1929 to 29 October 19291930: 17 March 1930 to 10 December 19301931: 4 January 1931 to 10 December 19311932: 4 January 1932 to 15 December 19321933: 17 January 1933 to 30 November 19331934: 29 May 1934 to 29 December 19341936: 9 July 1936 to 24 November 19361937: 8 January 1937 to 5 December 19371938: 21 January 1938 to 20 December 19381939: 7 January 1939 to 25 December 19391940: 6 January 1940 to 12 December 19401941: 2 January 1941 to 12 December 19411942: 3 January 1942 to 5 December 19421944: 24 January 1944 to 26 December 19441945: 17 January 1945 to 9 October 19451946: 6 January 1946 to 27 December 19461947: 14 July 1947 to 13 November 19471948: 5 February 1948 to 27 December 19481949: 9 January 1949 to 10 December 19491950: 3 January 1950 to 12 August 19501951: 13 January 1951 to 12 November 19511952: 1 March 1952 to 18 December 19521953: 1 March 1953 to 2 September 19531954: 19 May 1954 to 18 August 19541955: 15 January 1955 to 21 August 19551956: 22 January 1956 to 12 August 19561957: 4 January 1957 to 13 October 19571958: 5 February 1958 to 5 October 19581959: 9 February 1959 to 30 December 19591917192319291936194219491955JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Leslie Canyon meeting 10 mm (0.39 in).
First to last qualifying date each year at Leslie Canyon
YearFirst dateLast date
19171917-01-141917-09-20
19181918-06-211918-12-22
19191919-04-261919-11-28
19201920-01-041920-09-06
19211921-02-271921-11-30
19221922-03-241922-09-11
19231923-04-161923-12-03
19241924-03-281924-08-31
19251925-06-201925-11-25
19261926-02-021926-12-04
19271927-06-271927-12-11
19281928-05-101928-10-31
19291929-07-031929-10-29
19301930-03-171930-12-10
19311931-01-041931-12-10
19321932-01-041932-12-15
19331933-01-171933-11-30
19341934-05-291934-12-29
19361936-07-091936-11-24
19371937-01-081937-12-05
19381938-01-211938-12-20
19391939-01-071939-12-25
19401940-01-061940-12-12
19411941-01-021941-12-12
19421942-01-031942-12-05
19441944-01-241944-12-26
19451945-01-171945-10-09
19461946-01-061946-12-27
19471947-07-141947-11-13
19481948-02-051948-12-27
19491949-01-091949-12-10
19501950-01-031950-08-12
19511951-01-131951-11-12
19521952-03-011952-12-18
19531953-03-011953-09-02
19541954-05-191954-08-18
19551955-01-151955-08-21
19561956-01-221956-08-12
19571957-01-041957-10-13
19581958-02-051958-10-05
19591959-02-091959-12-30

Every Fixed Threshold

Fixed thresholds at Leslie Canyon
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain4123193115
25 mm (0.98 in): Days with 25 mm or more rain34519322
50 mm (1.97 in): Days with 50 mm or more rain9119191
10 cm (3.9 in): Days with 10 cm or more snowfall7219231

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1917.

Download the Data

  • Data for Leslie Canyon 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).