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Data as of 2025-12-31
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Built 2026-10-19 (19 October 2026)

Two Rocks Threshold Days by Year

4 fixed thresholds counted per year at Two Rocks (ASN00009183): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Two Rocks Thresholds

  • Two Rocks: days with 10 mm (0.39 in) or more of precipitation in 30 years, most in 2005 with 29.
  • Two Rocks: days with 25 mm (0.98 in) or more of precipitation in 30 years, most in 1995 with 8.
  • Two Rocks: days with 50 mm (1.97 in) or more of precipitation in 11 years, most in 1993 with 2.
  • Two Rocks: days with 100 mm (3.94 in) or more of precipitation in 1 years, most in 1992 with 1.
  • 4 fixed thresholds have at least one qualifying day at Two Rocks.
30 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Two Rocks Days per year at Two Rocks with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 29 in 2005. 01020301976: 201977: 141978: 271979: 121980: 121986: 231988: 191989: 231990: 211991: 271992: 191993: 241994: 201995: 251996: 251997: 231998: 241999: 202000: 222001: 202002: 142003: 212004: 192005: 292006: 132007: 212008: 202009: 202010: 182011: 171976197919881991199419972000200320062009
Days per year at Two Rocks with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 29 in 2005.
Days with 10 mm (0.39 in) or more of precipitation per year at Two Rocks
YearDaysDecade average
19762018.3
19771418.3
19782718.3
19791218.3
19801219.3
19862319.3
19881919.3
19892319.3
19902122.8
19912722.8
19921922.8
19932422.8
19942022.8
19952522.8
19962522.8
19972322.8
19982422.8
19992022.8
20002219.9
20012019.9
20021419.9
20032119.9
20041919.9
20052919.9
20061319.9
20072119.9
20082019.9
20092019.9
20101817.5
20111717.5
First to last qualifying date each year at Two Rocks For each year, a bar from the first to the last day at Two Rocks meeting 10 mm (0.39 in). 1976: 7 January 1976 to 18 September 19761977: 7 May 1977 to 28 October 19771978: 24 February 1978 to 1 October 19781979: 21 May 1979 to 10 November 19791980: 22 April 1980 to 22 October 19801986: 21 February 1986 to 8 November 19861988: 24 March 1988 to 7 November 19881989: 11 January 1989 to 29 October 19891990: 29 January 1990 to 13 October 19901991: 25 February 1991 to 25 December 19911992: 9 February 1992 to 9 December 19921993: 7 February 1993 to 2 October 19931994: 23 May 1994 to 14 October 19941995: 29 March 1995 to 8 November 19951996: 8 May 1996 to 15 November 19961997: 11 April 1997 to 9 September 19971998: 10 March 1998 to 1 October 19981999: 23 January 1999 to 14 October 19992000: 15 January 2000 to 27 November 20002001: 6 May 2001 to 19 November 20012002: 17 April 2002 to 1 November 20022003: 30 March 2003 to 30 September 20032004: 8 May 2004 to 21 October 20042005: 31 March 2005 to 28 October 20052006: 13 January 2006 to 1 September 20062007: 3 January 2007 to 8 October 20072008: 7 February 2008 to 25 October 20082009: 24 May 2009 to 19 November 20092010: 23 March 2010 to 11 November 20102011: 18 May 2011 to 7 December 201119761980199019941998200220062010JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Two Rocks meeting 10 mm (0.39 in).
First to last qualifying date each year at Two Rocks
YearFirst dateLast date
19761976-01-071976-09-18
19771977-05-071977-10-28
19781978-02-241978-10-01
19791979-05-211979-11-10
19801980-04-221980-10-22
19861986-02-211986-11-08
19881988-03-241988-11-07
19891989-01-111989-10-29
19901990-01-291990-10-13
19911991-02-251991-12-25
19921992-02-091992-12-09
19931993-02-071993-10-02
19941994-05-231994-10-14
19951995-03-291995-11-08
19961996-05-081996-11-15
19971997-04-111997-09-09
19981998-03-101998-10-01
19991999-01-231999-10-14
20002000-01-152000-11-27
20012001-05-062001-11-19
20022002-04-172002-11-01
20032003-03-302003-09-30
20042004-05-082004-10-21
20052005-03-312005-10-28
20062006-01-132006-09-01
20072007-01-032007-10-08
20082008-02-072008-10-25
20092009-05-242009-11-19
20102010-03-232010-11-11
20112011-05-182011-12-07

Every Fixed Threshold

Fixed thresholds at Two Rocks
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain3029200517
25 mm (0.98 in): Days with 25 mm or more rain30819954
50 mm (1.97 in): Days with 50 mm or more rain11219931
100 mm (3.94 in): Days with 100 mm or more rain1119921

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1976.

Download the Data

  • Data for Two Rocks 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 (2025-12-31).