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Built 2026-10-19 (19 October 2026)

Grantley Adams Threshold Days by Year (BB000078954)

8 fixed thresholds counted per year at Grantley Adams (BB000078954): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Grantley Adams Thresholds

  • Grantley Adams: nights with a minimum temperature at or above 20 C (68 F) in 17 years, most in 1978 with 352.
  • Grantley Adams: nights with a minimum temperature at or above 25 C (77 F) in 17 years, most in 1978 with 161.
  • Grantley Adams: days with a maximum temperature at or above 30 C (86 F) in 9 years, most in 1998 with 300.
  • Grantley Adams: days with a maximum temperature at or above 90 F (32.2 C) in 5 years, most in 1998 with 11.
  • 8 fixed thresholds have at least one qualifying day at Grantley Adams.
9 years with a qualifying day
Days at or above 30 C (86 F) per year at Grantley Adams Days per year at Grantley Adams with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 300 in 1998. 01002003001975: 1331978: 2531983: 2181994: 2361998: 3001999: 2412000: 1932001: 2382002: 252197519781983199419981999200020012002
Days per year at Grantley Adams with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 300 in 1998.
Days at or above 30 C (86 F) per year at Grantley Adams
YearDaysDecade average
1975133193
1978253193
1983218218
1994236259
1998300259
1999241259
2000193227.7
2001238227.7
2002252227.7
First to last qualifying date each year at Grantley Adams For each year, a bar from the first to the last day at Grantley Adams meeting 30 C (86 F). 1975: 12 May 1975 to 22 November 19751978: 2 March 1978 to 31 December 19781983: 4 January 1983 to 20 December 19831994: 15 January 1994 to 18 December 19941998: 4 January 1998 to 16 December 19981999: 23 February 1999 to 6 December 19992000: 6 April 2000 to 4 December 20002001: 26 March 2001 to 27 December 20012002: 5 January 2002 to 31 December 200219751983199820002002JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Grantley Adams meeting 30 C (86 F).
First to last qualifying date each year at Grantley Adams
YearFirst dateLast date
19751975-05-121975-11-22
19781978-03-021978-12-31
19831983-01-041983-12-20
19941994-01-151994-12-18
19981998-01-041998-12-16
19991999-02-231999-12-06
20002000-04-062000-12-04
20012001-03-262001-12-27
20022002-01-052002-12-31

Every Fixed Threshold

Fixed thresholds at Grantley Adams
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days93001998252
90 F (32.2 C): Days51119981
20 C (68 F): Tropical nights (min173521978332
25 C (77 F): Days with min17161197891
10 mm (0.39 in): Days with 10 mm or more rain238199838
25 mm (0.98 in): Days with 25 mm or more rain218199818
50 mm (1.97 in): Days with 50 mm or more rain2719987
100 mm (3.94 in): Days with 100 mm or more rain1119981

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1975.

Download the Data

  • Data for Grantley Adams 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).