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Built 2026-10-16 (16 October 2026)

Maria Threshold Days by Year

4 fixed thresholds counted per year at Maria (ASN00010803): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Maria Thresholds

  • Maria: days with 10 mm (0.39 in) or more of precipitation in 47 years, most in 1983 with 20.
  • Maria: days with 25 mm (0.98 in) or more of precipitation in 35 years, most in 1971 with 4.
  • Maria: days with 50 mm (1.97 in) or more of precipitation in 8 years, most in 2006 with 2.
  • Maria: days with 100 mm (3.94 in) or more of precipitation in 2 years, most in 1990 with 1.
  • 4 fixed thresholds have at least one qualifying day at Maria.
47 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Maria Days per year at Maria with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 20 in 1983. 051015201969: 81970: 91971: 101972: 71973: 131974: 161975: 111976: 101977: 111978: 71979: 81980: 71981: 101982: 81983: 201984: 71985: 71986: 51987: 101988: 101989: 81990: 71991: 91992: 81993: 131994: 91995: 71996: 41997: 101998: 91999: 102000: 62001: 112002: 42003: 82004: 82005: 92006: 142018: 52019: 62020: 92021: 152022: 132023: 72024: 82025: 112026: 31969197419791984198919941999200420202025
Days per year at Maria with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 20 in 1983.
Days with 10 mm (0.39 in) or more of precipitation per year at Maria
YearDaysDecade average
196988
1970910.2
19711010.2
1972710.2
19731310.2
19741610.2
19751110.2
19761010.2
19771110.2
1978710.2
1979810.2
198079.2
1981109.2
198289.2
1983209.2
198479.2
198579.2
198659.2
1987109.2
1988109.2
198989.2
199078.6
199198.6
199288.6
1993138.6
199498.6
199578.6
199648.6
1997108.6
199898.6
1999108.6
200068.6
2001118.6
200248.6
200388.6
200488.6
200598.6
2006148.6
201855.5
201965.5
202099.4
2021159.4
2022139.4
202379.4
202489.4
2025119.4
202639.4
First to last qualifying date each year at Maria For each year, a bar from the first to the last day at Maria meeting 10 mm (0.39 in). 1969: 20 March 1969 to 4 November 19691970: 16 February 1970 to 4 October 19701971: 31 January 1971 to 22 November 19711972: 4 February 1972 to 25 August 19721973: 7 January 1973 to 15 November 19731974: 3 March 1974 to 19 November 19741975: 1 April 1975 to 28 November 19751976: 7 January 1976 to 27 September 19761977: 15 May 1977 to 27 December 19771978: 24 February 1978 to 1 October 19781979: 12 January 1979 to 19 August 19791980: 8 February 1980 to 31 December 19801981: 18 February 1981 to 26 November 19811982: 21 January 1982 to 26 November 19821983: 27 February 1983 to 28 December 19831984: 4 March 1984 to 7 November 19841985: 9 April 1985 to 21 November 19851986: 22 February 1986 to 25 November 19861987: 25 April 1987 to 24 December 19871988: 20 March 1988 to 6 October 19881989: 26 February 1989 to 18 August 19891990: 29 January 1990 to 21 July 19901991: 26 February 1991 to 26 December 19911992: 9 February 1992 to 20 September 19921993: 6 February 1993 to 10 November 19931994: 23 May 1994 to 14 October 19941995: 10 May 1995 to 18 October 19951996: 31 May 1996 to 15 November 19961997: 20 February 1997 to 9 October 19971998: 11 March 1998 to 28 August 19981999: 19 March 1999 to 29 December 19992000: 15 January 2000 to 15 June 20002001: 24 February 2001 to 3 December 20012002: 18 April 2002 to 22 November 20022003: 17 February 2003 to 28 October 20032004: 2 March 2004 to 3 November 20042005: 28 March 2005 to 7 October 20052006: 8 January 2006 to 29 November 20062018: 17 January 2018 to 5 October 20182019: 17 May 2019 to 12 October 20192020: 7 February 2020 to 3 November 20202021: 7 February 2021 to 27 October 20212022: 31 March 2022 to 24 October 20222023: 26 March 2023 to 14 September 20232024: 18 January 2024 to 4 September 20242025: 14 March 2025 to 23 November 20252026: 28 March 2026 to 27 August 202619691975198119871993199920052022JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Maria meeting 10 mm (0.39 in).
First to last qualifying date each year at Maria
YearFirst dateLast date
19691969-03-201969-11-04
19701970-02-161970-10-04
19711971-01-311971-11-22
19721972-02-041972-08-25
19731973-01-071973-11-15
19741974-03-031974-11-19
19751975-04-011975-11-28
19761976-01-071976-09-27
19771977-05-151977-12-27
19781978-02-241978-10-01
19791979-01-121979-08-19
19801980-02-081980-12-31
19811981-02-181981-11-26
19821982-01-211982-11-26
19831983-02-271983-12-28
19841984-03-041984-11-07
19851985-04-091985-11-21
19861986-02-221986-11-25
19871987-04-251987-12-24
19881988-03-201988-10-06
19891989-02-261989-08-18
19901990-01-291990-07-21
19911991-02-261991-12-26
19921992-02-091992-09-20
19931993-02-061993-11-10
19941994-05-231994-10-14
19951995-05-101995-10-18
19961996-05-311996-11-15
19971997-02-201997-10-09
19981998-03-111998-08-28
19991999-03-191999-12-29
20002000-01-152000-06-15
20012001-02-242001-12-03
20022002-04-182002-11-22
20032003-02-172003-10-28
20042004-03-022004-11-03
20052005-03-282005-10-07
20062006-01-082006-11-29
20182018-01-172018-10-05
20192019-05-172019-10-12
20202020-02-072020-11-03
20212021-02-072021-10-27
20222022-03-312022-10-24
20232023-03-262023-09-14
20242024-01-182024-09-04
20252025-03-142025-11-23
20262026-03-282026-08-27

Every Fixed Threshold

Fixed thresholds at Maria
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain472019833
25 mm (0.98 in): Days with 25 mm or more rain35419711
50 mm (1.97 in): Days with 50 mm or more rain8220061
100 mm (3.94 in): Days with 100 mm or more rain2119901

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1969.

Download the Data

  • Data for Maria 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 (2026-10-12).