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Data as of 2026-10-17
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Built 2026-10-19 (19 October 2026)

Roberts Threshold Days by Year (CJW00011813)

10 fixed thresholds counted per year at Roberts (CJW00011813): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Roberts Thresholds

  • Roberts: days with 10 mm (0.39 in) or more of precipitation in 35 years, most in 1979 with 60.
  • Roberts: days with 25 mm (0.98 in) or more of precipitation in 35 years, most in 1977 with 22.
  • Roberts: days with 50 mm (1.97 in) or more of precipitation in 32 years, most in 1967 with 11.
  • Roberts: days with a maximum temperature at or above 30 C (86 F) in 24 years, most in 2013 with 267.
  • 10 fixed thresholds have at least one qualifying day at Roberts.
24 years with a qualifying day
Days at or above 30 C (86 F) per year at Roberts Days per year at Roberts with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 267 in 2013. 01002003001966: 1901967: 2001968: 1851969: 2211970: 2161971: 2281972: 2561973: 2471974: 1961975: 2321976: 2241977: 2561978: 2641979: 2371980: 2561981: 2171982: 2591983: 2621984: 2231985: 2051986: 2242013: 2672025: 2472026: 17419661969197219751978198119842013
Days per year at Roberts with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 267 in 2013.
Days at or above 30 C (86 F) per year at Roberts
YearDaysDecade average
1966190199
1967200199
1968185199
1969221199
1970216235.6
1971228235.6
1972256235.6
1973247235.6
1974196235.6
1975232235.6
1976224235.6
1977256235.6
1978264235.6
1979237235.6
1980256235.1
1981217235.1
1982259235.1
1983262235.1
1984223235.1
1985205235.1
1986224235.1
2013267267
2025247210.5
2026174210.5
First to last qualifying date each year at Roberts For each year, a bar from the first to the last day at Roberts meeting 30 C (86 F). 1966: 19 February 1966 to 31 December 19661967: 3 January 1967 to 28 December 19671968: 4 January 1968 to 23 December 19681969: 10 January 1969 to 26 December 19691970: 3 January 1970 to 23 December 19701971: 4 January 1971 to 22 December 19711972: 2 January 1972 to 21 December 19721973: 2 January 1973 to 20 December 19731974: 16 March 1974 to 22 December 19741975: 31 January 1975 to 25 December 19751976: 5 January 1976 to 31 December 19761977: 2 January 1977 to 26 December 19771978: 1 January 1978 to 30 December 19781979: 2 January 1979 to 24 December 19791980: 4 January 1980 to 24 December 19801981: 2 February 1981 to 31 December 19811982: 3 January 1982 to 31 December 19821983: 1 January 1983 to 29 December 19831984: 10 January 1984 to 2 December 19841985: 25 February 1985 to 13 December 19851986: 4 January 1986 to 31 December 19862013: 3 January 2013 to 31 December 20132025: 19 January 2025 to 24 December 20252026: 16 March 2026 to 12 October 202619661969197219751978198119842013JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Roberts meeting 30 C (86 F).
First to last qualifying date each year at Roberts
YearFirst dateLast date
19661966-02-191966-12-31
19671967-01-031967-12-28
19681968-01-041968-12-23
19691969-01-101969-12-26
19701970-01-031970-12-23
19711971-01-041971-12-22
19721972-01-021972-12-21
19731973-01-021973-12-20
19741974-03-161974-12-22
19751975-01-311975-12-25
19761976-01-051976-12-31
19771977-01-021977-12-26
19781978-01-011978-12-30
19791979-01-021979-12-24
19801980-01-041980-12-24
19811981-02-021981-12-31
19821982-01-031982-12-31
19831983-01-011983-12-29
19841984-01-101984-12-02
19851985-02-251985-12-13
19861986-01-041986-12-31
20132013-01-032013-12-31
20252025-01-192025-12-24
20262026-03-162026-10-12

Every Fixed Threshold

Fixed thresholds at Roberts
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days242672013174
35 C (95 F): Days2119661
90 F (32.2 C): Days24126198043
20 C (68 F): Tropical nights (min243582025278
25 C (77 F): Days with min243242025215
10 mm (0.39 in): Days with 10 mm or more rain3560197942
25 mm (0.98 in): Days with 25 mm or more rain3522197722
50 mm (1.97 in): Days with 50 mm or more rain321119678
100 mm (3.94 in): Days with 100 mm or more rain24319693
200 mm (7.87 in): Days with 200 mm or more rain1119701

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 Roberts 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).