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Data as of 2026-10-14
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Built 2026-10-15 (15 October 2026)

Bonilla Island Threshold Days by Year

8 fixed thresholds counted per year at Bonilla Island (CA001060902): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Bonilla Island Thresholds

  • Bonilla Island: days with 10 mm (0.39 in) or more of precipitation in 23 years, most in 1981 with 92.
  • Bonilla Island: days with 25 mm (0.98 in) or more of precipitation in 23 years, most in 1971 with 28.
  • Bonilla Island: days with 50 mm (1.97 in) or more of precipitation in 19 years, most in 1967 with 4.
  • Bonilla Island: days with 10 cm (3.9 in) or more of snowfall in 19 years, most in 1964 with 6.
  • 8 fixed thresholds have at least one qualifying day at Bonilla Island.
18 years with a qualifying day
Nights at or below 0 C (32 F) per year at Bonilla Island Days per year at Bonilla Island with nights with a minimum temperature at or below 0 C (32 F), with the decade average as a line. The most was 57 in 1972. 02040601966: 271967: 221968: 251969: 341970: 351971: 431972: 571973: 311974: 291975: 381976: 161977: 161978: 191979: 251980: 441981: 61982: 261983: 13196619681970197219741976197819801982
Days per year at Bonilla Island with nights with a minimum temperature at or below 0 C (32 F), with the decade average as a line. The most was 57 in 1972.
Nights at or below 0 C (32 F) per year at Bonilla Island
YearDaysDecade average
19662727
19672227
19682527
19693427
19703530.9
19714330.9
19725730.9
19733130.9
19742930.9
19753830.9
19761630.9
19771630.9
19781930.9
19792530.9
19804422.3
1981622.3
19822622.3
19831322.3
First to last qualifying date each year at Bonilla Island For each year, a bar from the first to the last day at Bonilla Island meeting 0 C (32 F). 1966: 1 January 1966 to 9 December 19661967: 5 January 1967 to 21 December 19671968: 8 January 1968 to 31 December 19681969: 1 January 1969 to 25 February 19691970: 4 January 1970 to 31 December 19701971: 9 January 1971 to 27 December 19711972: 3 January 1972 to 22 December 19721973: 2 January 1973 to 31 December 19731974: 1 January 1974 to 8 March 19741975: 3 January 1975 to 12 December 19751976: 6 January 1976 to 3 March 19761977: 10 January 1977 to 31 December 19771978: 1 January 1978 to 31 December 19781979: 1 January 1979 to 16 December 19791980: 4 January 1980 to 23 December 19801981: 9 February 1981 to 31 December 19811982: 1 January 1982 to 23 November 19821983: 24 January 1983 to 28 December 1983196619691972197519781981JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Bonilla Island meeting 0 C (32 F).
First to last qualifying date each year at Bonilla Island
YearFirst dateLast date
19661966-01-011966-12-09
19671967-01-051967-12-21
19681968-01-081968-12-31
19691969-01-011969-02-25
19701970-01-041970-12-31
19711971-01-091971-12-27
19721972-01-031972-12-22
19731973-01-021973-12-31
19741974-01-011974-03-08
19751975-01-031975-12-12
19761976-01-061976-03-03
19771977-01-101977-12-31
19781978-01-011978-12-31
19791979-01-011979-12-16
19801980-01-041980-12-23
19811981-02-091981-12-31
19821982-01-011982-11-23
19831983-01-241983-12-28

Every Fixed Threshold

Fixed thresholds at Bonilla Island
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
0 C (32 F): Ice days (max182219693
0 C (32 F): Frost days (min1857197213
-10 C (14 F): Days with min8519712
10 mm (0.39 in): Days with 10 mm or more rain2392198182
25 mm (0.98 in): Days with 25 mm or more rain2328197118
50 mm (1.97 in): Days with 50 mm or more rain19419672
10 cm (3.9 in): Days with 10 cm or more snowfall19619642
25 cm (9.8 in): Days with 25 cm or more snowfall2219641

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1966.

Download the Data

  • Data for Bonilla Island 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 2026-10-14 (14 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2026-10-14).