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Built 2026-10-15 (15 October 2026)

San Francisco Macan. Threshold Days by Year

4 fixed thresholds counted per year at San Francisco Macan. (VE000000795): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for San Francisco Macan. Thresholds

  • San Francisco Macan.: days with 10 mm (0.39 in) or more of precipitation in 30 years, most in 1988 with 30.
  • San Francisco Macan.: days with 25 mm (0.98 in) or more of precipitation in 28 years, most in 1988 with 14.
  • San Francisco Macan.: days with 50 mm (1.97 in) or more of precipitation in 18 years, most in 1988 with 5.
  • San Francisco Macan.: days with 100 mm (3.94 in) or more of precipitation in 4 years, most in 1969 with 2.
  • 4 fixed thresholds have at least one qualifying day at San Francisco Macan..
30 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at San Francisco Macan. Days per year at San Francisco Macan. with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 30 in 1988. 01020301967: 221968: 111969: 211970: 231971: 91972: 111973: 101974: 101975: 191976: 101977: 131978: 131979: 191980: 141981: 141982: 51983: 101984: 171985: 181986: 61987: 131988: 301989: 121990: 181991: 61992: 101993: 71994: 61995: 51996: 191967197019731976197919821985198819911994
Days per year at San Francisco Macan. with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 30 in 1988.
Days with 10 mm (0.39 in) or more of precipitation per year at San Francisco Macan.
YearDaysDecade average
19672218
19681118
19692118
19702313.7
1971913.7
19721113.7
19731013.7
19741013.7
19751913.7
19761013.7
19771313.7
19781313.7
19791913.7
19801413.9
19811413.9
1982513.9
19831013.9
19841713.9
19851813.9
1986613.9
19871313.9
19883013.9
19891213.9
19901810.1
1991610.1
19921010.1
1993710.1
1994610.1
1995510.1
19961910.1
First to last qualifying date each year at San Francisco Macan. For each year, a bar from the first to the last day at San Francisco Macan. meeting 10 mm (0.39 in). 1967: 4 January 1967 to 21 December 19671968: 6 February 1968 to 17 December 19681969: 19 January 1969 to 10 December 19691970: 1 March 1970 to 19 December 19701971: 9 January 1971 to 29 December 19711972: 1 January 1972 to 2 November 19721973: 23 April 1973 to 29 December 19731974: 7 January 1974 to 8 November 19741975: 2 July 1975 to 22 December 19751976: 4 February 1976 to 2 December 19761977: 9 June 1977 to 31 October 19771978: 12 January 1978 to 8 December 19781979: 16 January 1979 to 24 December 19791980: 24 May 1980 to 11 December 19801981: 3 January 1981 to 25 September 19811982: 23 January 1982 to 29 December 19821983: 16 May 1983 to 1 November 19831984: 18 January 1984 to 26 December 19841985: 16 January 1985 to 3 December 19851986: 9 September 1986 to 15 November 19861987: 9 January 1987 to 3 December 19871988: 31 January 1988 to 30 December 19881989: 7 February 1989 to 15 December 19891990: 3 January 1990 to 29 December 19901991: 24 January 1991 to 26 December 19911992: 21 January 1992 to 26 December 19921993: 28 April 1993 to 4 October 19931994: 13 July 1994 to 5 December 19941995: 21 March 1995 to 13 August 19951996: 3 June 1996 to 20 December 199619671971197519791983198719911995JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at San Francisco Macan. meeting 10 mm (0.39 in).
First to last qualifying date each year at San Francisco Macan.
YearFirst dateLast date
19671967-01-041967-12-21
19681968-02-061968-12-17
19691969-01-191969-12-10
19701970-03-011970-12-19
19711971-01-091971-12-29
19721972-01-011972-11-02
19731973-04-231973-12-29
19741974-01-071974-11-08
19751975-07-021975-12-22
19761976-02-041976-12-02
19771977-06-091977-10-31
19781978-01-121978-12-08
19791979-01-161979-12-24
19801980-05-241980-12-11
19811981-01-031981-09-25
19821982-01-231982-12-29
19831983-05-161983-11-01
19841984-01-181984-12-26
19851985-01-161985-12-03
19861986-09-091986-11-15
19871987-01-091987-12-03
19881988-01-311988-12-30
19891989-02-071989-12-15
19901990-01-031990-12-29
19911991-01-241991-12-26
19921992-01-211992-12-26
19931993-04-281993-10-04
19941994-07-131994-12-05
19951995-03-211995-08-13
19961996-06-031996-12-20

Every Fixed Threshold

Fixed thresholds at San Francisco Macan.
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain3030198819
25 mm (0.98 in): Days with 25 mm or more rain281419887
50 mm (1.97 in): Days with 50 mm or more rain18519882
100 mm (3.94 in): Days with 100 mm or more rain4219691

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1967.

Download the Data

  • Data for San Francisco Macan. 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 2026-10-13 (13 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2025-12-31).