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Built 2026-10-19 (19 October 2026)

Porsa II Threshold Days by Year (NOE00133170)

3 fixed thresholds counted per year at Porsa II (NOE00133170): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Porsa II Thresholds

  • Porsa II: days with 10 mm (0.39 in) or more of precipitation in 59 years, most in 2013 with 31.
  • Porsa II: days with 25 mm (0.98 in) or more of precipitation in 38 years, most in 1991 with 4.
  • Porsa II: days with 50 mm (1.97 in) or more of precipitation in 2 years, most in 2006 with 2.
  • 3 fixed thresholds have at least one qualifying day at Porsa II.
59 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Porsa II Days per year at Porsa II with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 31 in 2013. 0102030401958: 101959: 231960: 181961: 151962: 181963: 221964: 191965: 131966: 111967: 211968: 141969: 121970: 101971: 131972: 161973: 161974: 121975: 241976: 161977: 111978: 231979: 131980: 171981: 141982: 241983: 221984: 121985: 211986: 161987: 191988: 121989: 251990: 261991: 261992: 251993: 221994: 181995: 201996: 181997: 301998: 141999: 212000: 262001: 242002: 282003: 292004: 192006: 212007: 182008: 272009: 242010: 272011: 222012: 182013: 312014: 122015: 212016: 202017: 231958196419701976198219881994200020072013
Days per year at Porsa II with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 31 in 2013.
Days with 10 mm (0.39 in) or more of precipitation per year at Porsa II
YearDaysDecade average
19581016.5
19592316.5
19601816.3
19611516.3
19621816.3
19632216.3
19641916.3
19651316.3
19661116.3
19672116.3
19681416.3
19691216.3
19701015.4
19711315.4
19721615.4
19731615.4
19741215.4
19752415.4
19761615.4
19771115.4
19782315.4
19791315.4
19801718.2
19811418.2
19822418.2
19832218.2
19841218.2
19852118.2
19861618.2
19871918.2
19881218.2
19892518.2
19902622
19912622
19922522
19932222
19941822
19952022
19961822
19973022
19981422
19992122
20002624
20012424
20022824
20032924
20041924
20062124
20071824
20082724
20092424
20102721.8
20112221.8
20121821.8
20133121.8
20141221.8
20152121.8
20162021.8
20172321.8
First to last qualifying date each year at Porsa II For each year, a bar from the first to the last day at Porsa II meeting 10 mm (0.39 in). 1958: 26 January 1958 to 30 November 19581959: 14 January 1959 to 27 November 19591960: 14 January 1960 to 18 December 19601961: 22 February 1961 to 2 December 19611962: 12 January 1962 to 28 December 19621963: 11 January 1963 to 23 December 19631964: 8 January 1964 to 25 December 19641965: 6 February 1965 to 20 November 19651966: 6 May 1966 to 22 September 19661967: 25 January 1967 to 19 December 19671968: 8 January 1968 to 14 December 19681969: 11 January 1969 to 29 November 19691970: 28 January 1970 to 14 December 19701971: 2 January 1971 to 31 December 19711972: 3 January 1972 to 21 December 19721973: 4 January 1973 to 15 December 19731974: 22 January 1974 to 23 December 19741975: 2 February 1975 to 15 December 19751976: 16 February 1976 to 25 December 19761977: 9 January 1977 to 4 December 19771978: 5 January 1978 to 17 December 19781979: 1 January 1979 to 8 December 19791980: 14 January 1980 to 16 December 19801981: 23 January 1981 to 11 December 19811982: 6 January 1982 to 7 December 19821983: 19 January 1983 to 7 December 19831984: 5 January 1984 to 3 December 19841985: 15 January 1985 to 10 December 19851986: 10 February 1986 to 2 December 19861987: 15 January 1987 to 26 December 19871988: 18 April 1988 to 24 December 19881989: 2 January 1989 to 29 December 19891990: 21 February 1990 to 15 December 19901991: 11 January 1991 to 29 December 19911992: 2 January 1992 to 28 December 19921993: 23 January 1993 to 7 December 19931994: 2 January 1994 to 24 December 19941995: 21 April 1995 to 26 December 19951996: 1 January 1996 to 28 December 19961997: 2 January 1997 to 24 December 19971998: 19 January 1998 to 20 December 19981999: 6 February 1999 to 23 December 19992000: 9 January 2000 to 23 September 20002001: 12 January 2001 to 22 December 20012002: 2 January 2002 to 21 December 20022003: 7 January 2003 to 21 December 20032004: 13 February 2004 to 15 December 20042006: 23 January 2006 to 28 December 20062007: 25 January 2007 to 16 December 20072008: 26 January 2008 to 29 December 20082009: 3 January 2009 to 9 October 20092010: 9 January 2010 to 31 December 20102011: 27 January 2011 to 28 November 20112012: 12 February 2012 to 19 November 20122013: 18 January 2013 to 13 December 20132014: 11 March 2014 to 30 December 20142015: 7 February 2015 to 15 December 20152016: 8 January 2016 to 31 December 20162017: 8 January 2017 to 27 December 201719581966197419821990199820072015JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Porsa II meeting 10 mm (0.39 in).
First to last qualifying date each year at Porsa II
YearFirst dateLast date
19581958-01-261958-11-30
19591959-01-141959-11-27
19601960-01-141960-12-18
19611961-02-221961-12-02
19621962-01-121962-12-28
19631963-01-111963-12-23
19641964-01-081964-12-25
19651965-02-061965-11-20
19661966-05-061966-09-22
19671967-01-251967-12-19
19681968-01-081968-12-14
19691969-01-111969-11-29
19701970-01-281970-12-14
19711971-01-021971-12-31
19721972-01-031972-12-21
19731973-01-041973-12-15
19741974-01-221974-12-23
19751975-02-021975-12-15
19761976-02-161976-12-25
19771977-01-091977-12-04
19781978-01-051978-12-17
19791979-01-011979-12-08
19801980-01-141980-12-16
19811981-01-231981-12-11
19821982-01-061982-12-07
19831983-01-191983-12-07
19841984-01-051984-12-03
19851985-01-151985-12-10
19861986-02-101986-12-02
19871987-01-151987-12-26
19881988-04-181988-12-24
19891989-01-021989-12-29
19901990-02-211990-12-15
19911991-01-111991-12-29
19921992-01-021992-12-28
19931993-01-231993-12-07
19941994-01-021994-12-24
19951995-04-211995-12-26
19961996-01-011996-12-28
19971997-01-021997-12-24
19981998-01-191998-12-20
19991999-02-061999-12-23
20002000-01-092000-09-23
20012001-01-122001-12-22
20022002-01-022002-12-21
20032003-01-072003-12-21
20042004-02-132004-12-15
20062006-01-232006-12-28
20072007-01-252007-12-16
20082008-01-262008-12-29
20092009-01-032009-10-09
20102010-01-092010-12-31
20112011-01-272011-11-28
20122012-02-122012-11-19
20132013-01-182013-12-13
20142014-03-112014-12-30
20152015-02-072015-12-15
20162016-01-082016-12-31
20172017-01-082017-12-27

Every Fixed Threshold

Fixed thresholds at Porsa II
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain5931201323
25 mm (0.98 in): Days with 25 mm or more rain38419911
50 mm (1.97 in): Days with 50 mm or more rain2220062

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1958.

Download the Data

  • Data for Porsa II 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).