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Built 2026-10-19 (19 October 2026)

Mission Threshold Days by Year (CA001105190)

13 fixed thresholds counted per year at Mission (CA001105190): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Mission Thresholds

  • Mission: days with a maximum temperature at or below 0 C (32 F) in 28 years, most in 1957 with 20.
  • Mission: nights with a minimum temperature at or below 0 C (32 F) in 28 years, most in 1955 with 84.
  • Mission: days with 10 mm (0.39 in) or more of precipitation in 28 years, most in 1971 with 71.
  • Mission: days with 25 mm (0.98 in) or more of precipitation in 28 years, most in 1980 with 22.
  • 13 fixed thresholds have at least one qualifying day at Mission.
24 years with a qualifying day
Days at or above 30 C (86 F) per year at Mission Days per year at Mission with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 25 in 1958. 01020301955: 31956: 81957: 11958: 251959: 61960: 91961: 121963: 31965: 71966: 31967: 171968: 51969: 61970: 51971: 121972: 81973: 81974: 91975: 21977: 121978: 81979: 61980: 21982: 1419551958196119661969197219751979
Days per year at Mission with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 25 in 1958.
Days at or above 30 C (86 F) per year at Mission
YearDaysDecade average
195538.6
195688.6
195718.6
1958258.6
195968.6
196097.8
1961127.8
196337.8
196577.8
196637.8
1967177.8
196857.8
196967.8
197057.8
1971127.8
197287.8
197387.8
197497.8
197527.8
1977127.8
197887.8
197967.8
198028
1982148
First to last qualifying date each year at Mission For each year, a bar from the first to the last day at Mission meeting 30 C (86 F). 1955: 9 June 1955 to 5 September 19551956: 18 May 1956 to 22 August 19561957: 13 September 1957 to 13 September 19571958: 18 May 1958 to 7 September 19581959: 13 May 1959 to 31 July 19591960: 6 July 1960 to 9 August 19601961: 16 June 1961 to 19 August 19611963: 20 May 1963 to 9 September 19631965: 24 July 1965 to 18 August 19651966: 15 June 1966 to 23 August 19661967: 18 June 1967 to 16 September 19671968: 2 July 1968 to 31 July 19681969: 23 May 1969 to 18 June 19691970: 1 June 1970 to 18 July 19701971: 11 May 1971 to 11 August 19711972: 28 May 1972 to 3 September 19721973: 13 May 1973 to 5 September 19731974: 31 July 1974 to 24 September 19741975: 5 July 1975 to 7 July 19751977: 17 June 1977 to 17 August 19771978: 3 June 1978 to 8 August 19781979: 15 July 1979 to 14 September 19791980: 21 July 1980 to 10 August 19801982: 11 June 1982 to 2 September 198219551958196119661969197219751979JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Mission meeting 30 C (86 F).
First to last qualifying date each year at Mission
YearFirst dateLast date
19551955-06-091955-09-05
19561956-05-181956-08-22
19571957-09-131957-09-13
19581958-05-181958-09-07
19591959-05-131959-07-31
19601960-07-061960-08-09
19611961-06-161961-08-19
19631963-05-201963-09-09
19651965-07-241965-08-18
19661966-06-151966-08-23
19671967-06-181967-09-16
19681968-07-021968-07-31
19691969-05-231969-06-18
19701970-06-011970-07-18
19711971-05-111971-08-11
19721972-05-281972-09-03
19731973-05-131973-09-05
19741974-07-311974-09-24
19751975-07-051975-07-07
19771977-06-171977-08-17
19781978-06-031978-08-08
19791979-07-151979-09-14
19801980-07-211980-08-10
19821982-06-111982-09-02

Every Fixed Threshold

Fixed thresholds at Mission
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days2425195814
35 C (95 F): Days7219581
90 F (32.2 C): Days18919584
100 F (37.8 C): Days1119581
0 C (32 F): Ice days (max282019577
0 C (32 F): Frost days (min2884195555
-10 C (14 F): Days with min19919692
20 C (68 F): Tropical nights (min3219742
10 mm (0.39 in): Days with 10 mm or more rain2871197163
25 mm (0.98 in): Days with 25 mm or more rain2822198019
50 mm (1.97 in): Days with 50 mm or more rain22519712
10 cm (3.9 in): Days with 10 cm or more snowfall22619694
25 cm (9.8 in): Days with 25 cm or more snowfall2119641

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1955.

Download the Data

  • Data for Mission 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).