Built 2026-10-19 (19 October 2026)

San Nicolas Is Threshold Days by Year (USW00093116)

9 fixed thresholds counted per year at San Nicolas Is (USW00093116): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for San Nicolas Is Thresholds

  • San Nicolas Is: days with 10 mm (0.39 in) or more of precipitation in 37 years, most in 1983 with 21.
  • San Nicolas Is: days with a maximum temperature at or above 30 C (86 F) in 33 years, most in 2008 with 23.
  • San Nicolas Is: days with 25 mm (0.98 in) or more of precipitation in 25 years, most in 1978 with 6.
  • San Nicolas Is: days with a maximum temperature at or above 90 F (32.2 C) in 24 years, most in 2008 with 11.
  • 9 fixed thresholds have at least one qualifying day at San Nicolas Is.
33 years with a qualifying day
Days at or above 30 C (86 F) per year at San Nicolas Is Days per year at San Nicolas Is with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 23 in 2008. 01020301934: 31936: 11937: 11939: 131941: 11943: 21944: 41948: 11949: 71950: 21951: 31965: 121966: 51967: 101969: 51970: 101971: 131972: 101973: 81974: 21975: 71976: 31977: 11978: 51979: 91980: 91981: 91982: 61983: 121984: 131985: 112008: 232026: 11193419411949196619711975197919832026
Days per year at San Nicolas Is with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 23 in 2008.
Days at or above 30 C (86 F) per year at San Nicolas Is
YearDaysDecade average
193434.5
193614.5
193714.5
1939134.5
194113
194323
194443
194813
194973
195022.5
195132.5
1965128
196658
1967108
196958
1970106.8
1971136.8
1972106.8
197386.8
197426.8
197576.8
197636.8
197716.8
197856.8
197996.8
1980910
1981910
1982610
19831210
19841310
19851110
20082323
20261111
First to last qualifying date each year at San Nicolas Is For each year, a bar from the first to the last day at San Nicolas Is meeting 30 C (86 F). 1934: 11 July 1934 to 18 September 19341936: 7 September 1936 to 7 September 19361937: 30 June 1937 to 30 June 19371939: 16 September 1939 to 29 October 19391941: 5 November 1941 to 5 November 19411943: 21 September 1943 to 22 September 19431944: 28 August 1944 to 23 September 19441948: 7 October 1948 to 7 October 19481949: 22 June 1949 to 15 November 19491950: 13 October 1950 to 3 November 19501951: 6 October 1951 to 8 October 19511965: 8 August 1965 to 27 October 19651966: 15 April 1966 to 2 November 19661967: 15 May 1967 to 31 October 19671969: 28 April 1969 to 7 October 19691970: 2 July 1970 to 9 October 19701971: 4 April 1971 to 7 October 19711972: 27 July 1972 to 6 October 19721973: 19 June 1973 to 28 October 19731974: 15 October 1974 to 16 October 19741975: 7 August 1975 to 4 October 19751976: 24 June 1976 to 30 August 19761977: 27 July 1977 to 27 July 19771978: 29 May 1978 to 29 September 19781979: 12 May 1979 to 18 September 19791980: 27 June 1980 to 16 December 19801981: 17 June 1981 to 19 October 19811982: 8 August 1982 to 23 October 19821983: 11 July 1983 to 27 October 19831984: 8 May 1984 to 29 September 19841985: 2 April 1985 to 5 October 19852008: 12 April 2008 to 17 November 20082026: 17 March 2026 to 7 October 20261934194319511970197519801985JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at San Nicolas Is meeting 30 C (86 F).
First to last qualifying date each year at San Nicolas Is
YearFirst dateLast date
19341934-07-111934-09-18
19361936-09-071936-09-07
19371937-06-301937-06-30
19391939-09-161939-10-29
19411941-11-051941-11-05
19431943-09-211943-09-22
19441944-08-281944-09-23
19481948-10-071948-10-07
19491949-06-221949-11-15
19501950-10-131950-11-03
19511951-10-061951-10-08
19651965-08-081965-10-27
19661966-04-151966-11-02
19671967-05-151967-10-31
19691969-04-281969-10-07
19701970-07-021970-10-09
19711971-04-041971-10-07
19721972-07-271972-10-06
19731973-06-191973-10-28
19741974-10-151974-10-16
19751975-08-071975-10-04
19761976-06-241976-08-30
19771977-07-271977-07-27
19781978-05-291978-09-29
19791979-05-121979-09-18
19801980-06-271980-12-16
19811981-06-171981-10-19
19821982-08-081982-10-23
19831983-07-111983-10-27
19841984-05-081984-09-29
19851985-04-021985-10-05
20082008-04-122008-11-17
20262026-03-172026-10-07

Every Fixed Threshold

Fixed thresholds at San Nicolas Is
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days3323200811
35 C (95 F): Days15319782
90 F (32.2 C): Days2411200810
100 F (37.8 C): Days3219701
20 C (68 F): Tropical nights (min1912193910
25 C (77 F): Days with min1219392
10 mm (0.39 in): Days with 10 mm or more rain372119831
25 mm (0.98 in): Days with 25 mm or more rain25619782
50 mm (1.97 in): Days with 50 mm or more rain7219381

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1934.

Download the Data

  • Data for San Nicolas Is 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).