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

Deal Island Threshold Days by Year (ASN00099001)

9 fixed thresholds counted per year at Deal Island (ASN00099001): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Deal Island Thresholds

  • Deal Island: days with 10 mm (0.39 in) or more of precipitation in 125 years, most in 1956 with 45.
  • Deal Island: days with 25 mm (0.98 in) or more of precipitation in 112 years, most in 1947 with 9.
  • Deal Island: days with 50 mm (1.97 in) or more of precipitation in 44 years, most in 1961 with 3.
  • Deal Island: days with a maximum temperature at or above 30 C (86 F) in 8 years, most in 1991 with 2.
  • 9 fixed thresholds have at least one qualifying day at Deal Island.
8 years with a qualifying day
Days at or above 30 C (86 F) per year at Deal Island Days per year at Deal Island with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 2 in 1991. 011221985: 11988: 11990: 11991: 21993: 21994: 11995: 11997: 119851988199019911993199419951997
Days per year at Deal Island with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 2 in 1991.
Days at or above 30 C (86 F) per year at Deal Island
YearDaysDecade average
198511
198811
199011.3
199121.3
199321.3
199411.3
199511.3
199711.3
First to last qualifying date each year at Deal Island For each year, a bar from the first to the last day at Deal Island meeting 30 C (86 F). 1985: 14 January 1985 to 14 January 19851988: 11 January 1988 to 11 January 19881990: 24 January 1990 to 24 January 19901991: 25 February 1991 to 7 March 19911993: 3 February 1993 to 7 February 19931994: 12 December 1994 to 12 December 19941995: 25 February 1995 to 25 February 19951997: 21 January 1997 to 21 January 199719851988199019911993199419951997JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Deal Island meeting 30 C (86 F).
First to last qualifying date each year at Deal Island
YearFirst dateLast date
19851985-01-141985-01-14
19881988-01-111988-01-11
19901990-01-241990-01-24
19911991-02-251991-03-07
19931993-02-031993-02-07
19941994-12-121994-12-12
19951995-02-251995-02-25
19971997-01-211997-01-21

Every Fixed Threshold

Fixed thresholds at Deal Island
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days8219911
35 C (95 F): Days1119971
90 F (32.2 C): Days3119851
0 C (32 F): Frost days (min3119921
20 C (68 F): Tropical nights (min4419974
10 mm (0.39 in): Days with 10 mm or more rain12545195614
25 mm (0.98 in): Days with 25 mm or more rain112919472
50 mm (1.97 in): Days with 50 mm or more rain44319611
100 mm (3.94 in): Days with 100 mm or more rain5119201

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1985.

Download the Data

  • Data for Deal 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 2026-10-17 (17 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2026-10-17).