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Built 2026-10-19 (19 October 2026)

Presidio Threshold Days by Year (USC00417262)

16 fixed thresholds counted per year at Presidio (USC00417262): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Presidio Thresholds

  • Presidio: days with 10 mm (0.39 in) or more of precipitation in 73 years, most in 1941 with 18.
  • Presidio: nights with a minimum temperature at or below 0 C (32 F) in 65 years, most in 1936 with 65.
  • Presidio: nights with a minimum temperature at or above 20 C (68 F) in 65 years, most in 1997 with 133.
  • Presidio: days with a maximum temperature at or above 30 C (86 F) in 63 years, most in 2011 with 243.
  • 16 fixed thresholds have at least one qualifying day at Presidio.
63 years with a qualifying day
Days at or above 30 C (86 F) per year at Presidio Days per year at Presidio with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 243 in 2011. 01002003001930: 1791931: 1931932: 1751933: 2071934: 2261935: 2051936: 1871937: 1971938: 2021939: 2041940: 1921941: 1851942: 2091943: 2121944: 1951945: 2141946: 1991947: 2121948: 2001949: 1881950: 2191951: 2111952: 2001955: 2161956: 2051957: 1821958: 1831959: 2041960: 2211961: 2111962: 2081964: 2091965: 2101966: 1931967: 2151968: 1921969: 2011970: 1851972: 2271974: 1941975: 2141976: 1941980: 1901981: 2051982: 2191984: 2201985: 2141986: 2091987: 1971988: 2361989: 2131990: 1971991: 2031992: 2051993: 2121994: 2151995: 2171996: 2061997: 1971998: 1951999: 2222010: 1852011: 243193019371944195119601968198019881995
Days per year at Presidio with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 243 in 2011.
Days at or above 30 C (86 F) per year at Presidio
YearDaysDecade average
1930179197.5
1931193197.5
1932175197.5
1933207197.5
1934226197.5
1935205197.5
1936187197.5
1937197197.5
1938202197.5
1939204197.5
1940192200.6
1941185200.6
1942209200.6
1943212200.6
1944195200.6
1945214200.6
1946199200.6
1947212200.6
1948200200.6
1949188200.6
1950219202.5
1951211202.5
1952200202.5
1955216202.5
1956205202.5
1957182202.5
1958183202.5
1959204202.5
1960221206.7
1961211206.7
1962208206.7
1964209206.7
1965210206.7
1966193206.7
1967215206.7
1968192206.7
1969201206.7
1970185202.8
1972227202.8
1974194202.8
1975214202.8
1976194202.8
1980190211.4
1981205211.4
1982219211.4
1984220211.4
1985214211.4
1986209211.4
1987197211.4
1988236211.4
1989213211.4
1990197206.9
1991203206.9
1992205206.9
1993212206.9
1994215206.9
1995217206.9
1996206206.9
1997197206.9
1998195206.9
1999222206.9
2010185214
2011243214
First to last qualifying date each year at Presidio For each year, a bar from the first to the last day at Presidio meeting 30 C (86 F). 1930: 19 February 1930 to 22 October 19301931: 22 March 1931 to 8 November 19311932: 7 February 1932 to 7 November 19321933: 4 March 1933 to 1 November 19331934: 24 February 1934 to 17 November 19341935: 3 March 1935 to 8 November 19351936: 23 February 1936 to 7 November 19361937: 17 March 1937 to 1 November 19371938: 3 March 1938 to 17 November 19381939: 7 February 1939 to 9 November 19391940: 28 February 1940 to 3 November 19401941: 15 February 1941 to 24 October 19411942: 6 March 1942 to 20 November 19421943: 23 January 1943 to 5 November 19431944: 13 March 1944 to 12 November 19441945: 2 February 1945 to 16 November 19451946: 4 February 1946 to 31 October 19461947: 21 March 1947 to 6 November 19471948: 18 February 1948 to 4 November 19481949: 15 March 1949 to 20 October 19491950: 27 February 1950 to 20 November 19501951: 11 February 1951 to 30 December 19511952: 25 January 1952 to 16 November 19521955: 3 March 1955 to 15 November 19551956: 22 February 1956 to 14 November 19561957: 3 February 1957 to 1 November 19571958: 9 March 1958 to 24 October 19581959: 17 February 1959 to 3 November 19591960: 9 February 1960 to 14 November 19601961: 26 February 1961 to 31 October 19611962: 9 February 1962 to 10 November 19621964: 12 February 1964 to 18 November 19641965: 15 March 1965 to 25 November 19651966: 10 March 1966 to 22 November 19661967: 14 February 1967 to 2 November 19671968: 25 February 1968 to 5 November 19681969: 18 March 1969 to 11 November 19691970: 18 February 1970 to 26 October 19701972: 20 February 1972 to 12 November 19721974: 28 February 1974 to 2 November 19741975: 2 March 1975 to 11 November 19751976: 9 February 1976 to 18 October 19761980: 5 February 1980 to 10 November 19801981: 26 March 1981 to 26 November 19811982: 23 February 1982 to 1 November 19821984: 17 February 1984 to 15 November 19841985: 3 March 1985 to 21 December 19851986: 15 February 1986 to 3 November 19861987: 13 February 1987 to 23 December 19871988: 3 February 1988 to 14 November 19881989: 11 February 1989 to 22 November 19891990: 13 February 1990 to 19 November 19901991: 5 March 1991 to 28 November 19911992: 7 March 1992 to 12 November 19921993: 9 March 1993 to 12 December 19931994: 18 February 1994 to 27 November 19941995: 14 February 1995 to 13 November 19951996: 17 January 1996 to 23 November 19961997: 4 March 1997 to 4 November 19971998: 24 February 1998 to 9 November 19981999: 21 January 1999 to 18 November 19992010: 15 March 2010 to 25 November 20102011: 17 February 2011 to 22 November 201119301938194619561965197519871995JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Presidio meeting 30 C (86 F).
First to last qualifying date each year at Presidio
YearFirst dateLast date
19301930-02-191930-10-22
19311931-03-221931-11-08
19321932-02-071932-11-07
19331933-03-041933-11-01
19341934-02-241934-11-17
19351935-03-031935-11-08
19361936-02-231936-11-07
19371937-03-171937-11-01
19381938-03-031938-11-17
19391939-02-071939-11-09
19401940-02-281940-11-03
19411941-02-151941-10-24
19421942-03-061942-11-20
19431943-01-231943-11-05
19441944-03-131944-11-12
19451945-02-021945-11-16
19461946-02-041946-10-31
19471947-03-211947-11-06
19481948-02-181948-11-04
19491949-03-151949-10-20
19501950-02-271950-11-20
19511951-02-111951-12-30
19521952-01-251952-11-16
19551955-03-031955-11-15
19561956-02-221956-11-14
19571957-02-031957-11-01
19581958-03-091958-10-24
19591959-02-171959-11-03
19601960-02-091960-11-14
19611961-02-261961-10-31
19621962-02-091962-11-10
19641964-02-121964-11-18
19651965-03-151965-11-25
19661966-03-101966-11-22
19671967-02-141967-11-02
19681968-02-251968-11-05
19691969-03-181969-11-11
19701970-02-181970-10-26
19721972-02-201972-11-12
19741974-02-281974-11-02
19751975-03-021975-11-11
19761976-02-091976-10-18
19801980-02-051980-11-10
19811981-03-261981-11-26
19821982-02-231982-11-01
19841984-02-171984-11-15
19851985-03-031985-12-21
19861986-02-151986-11-03
19871987-02-131987-12-23
19881988-02-031988-11-14
19891989-02-111989-11-22
19901990-02-131990-11-19
19911991-03-051991-11-28
19921992-03-071992-11-12
19931993-03-091993-12-12
19941994-02-181994-11-27
19951995-02-141995-11-13
19961996-01-171996-11-23
19971997-03-041997-11-04
19981998-02-241998-11-09
19991999-01-211999-11-18
20102010-03-152010-11-25
20112011-02-172011-11-22

Every Fixed Threshold

Fixed thresholds at Presidio
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days632432011243
35 C (95 F): Days631752011175
40 C (104 F): Days6381195676
45 C (113 F): Days19919571
90 F (32.2 C): Days632212011221
100 F (37.8 C): Days631232011123
110 F (43.3 C): Days4523195811
0 C (32 F): Ice days (max4119471
0 C (32 F): Frost days (min6565193647
-10 C (14 F): Days with min13319622
20 C (68 F): Tropical nights (min651331997119
25 C (77 F): Days with min6172201172
10 mm (0.39 in): Days with 10 mm or more rain731819411
25 mm (0.98 in): Days with 25 mm or more rain55619414
50 mm (1.97 in): Days with 50 mm or more rain15219581
10 cm (3.9 in): Days with 10 cm or more snowfall1119311

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1930.

Download the Data

  • Data for Presidio 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).