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Built 2026-10-18 (18 October 2026)

Heltermaa Threshold Days by Year

3 fixed thresholds counted per year at Heltermaa (ENE00174995): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Heltermaa Thresholds

  • Heltermaa: days with 10 mm (0.39 in) or more of precipitation in 72 years, most in 2012 with 28.
  • Heltermaa: days with 25 mm (0.98 in) or more of precipitation in 48 years, most in 2005 with 5.
  • Heltermaa: days with 50 mm (1.97 in) or more of precipitation in 5 years, most in 1988 with 2.
  • 3 fixed thresholds have at least one qualifying day at Heltermaa.
72 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Heltermaa Days per year at Heltermaa with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 28 in 2012. 01020301954: 41955: 71956: 111957: 191958: 31959: 71960: 121961: 181962: 141963: 101964: 61965: 111966: 81967: 91968: 81969: 91970: 101971: 141972: 141973: 131974: 121975: 91976: 71977: 151978: 141979: 101980: 181981: 161982: 141983: 111984: 131985: 61986: 141987: 201988: 121989: 141990: 221991: 131992: 111993: 231994: 201995: 161996: 111997: 131998: 181999: 152000: 122001: 262002: 72003: 102004: 162005: 152006: 82007: 232008: 172009: 172010: 162011: 192012: 282013: 92014: 162015: 112016: 152017: 112018: 152019: 102020: 192021: 172022: 152023: 182024: 152025: 16195419621970197819861994200220102018
Days per year at Heltermaa with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 28 in 2012.
Days with 10 mm (0.39 in) or more of precipitation per year at Heltermaa
YearDaysDecade average
195448.5
195578.5
1956118.5
1957198.5
195838.5
195978.5
19601210.5
19611810.5
19621410.5
19631010.5
1964610.5
19651110.5
1966810.5
1967910.5
1968810.5
1969910.5
19701011.8
19711411.8
19721411.8
19731311.8
19741211.8
1975911.8
1976711.8
19771511.8
19781411.8
19791011.8
19801813.8
19811613.8
19821413.8
19831113.8
19841313.8
1985613.8
19861413.8
19872013.8
19881213.8
19891413.8
19902216.2
19911316.2
19921116.2
19932316.2
19942016.2
19951616.2
19961116.2
19971316.2
19981816.2
19991516.2
20001215.1
20012615.1
2002715.1
20031015.1
20041615.1
20051515.1
2006815.1
20072315.1
20081715.1
20091715.1
20101615
20111915
20122815
2013915
20141615
20151115
20161515
20171115
20181515
20191015
20201916.7
20211716.7
20221516.7
20231816.7
20241516.7
20251616.7
First to last qualifying date each year at Heltermaa For each year, a bar from the first to the last day at Heltermaa meeting 10 mm (0.39 in). 1954: 11 July 1954 to 30 August 19541955: 2 July 1955 to 8 December 19551956: 9 June 1956 to 2 December 19561957: 1 February 1957 to 10 December 19571958: 18 January 1958 to 11 November 19581959: 19 February 1959 to 21 September 19591960: 25 May 1960 to 10 December 19601961: 29 January 1961 to 26 November 19611962: 22 January 1962 to 20 November 19621963: 8 July 1963 to 2 November 19631964: 7 July 1964 to 6 November 19641965: 22 June 1965 to 9 December 19651966: 29 January 1966 to 23 October 19661967: 5 August 1967 to 15 December 19671968: 18 May 1968 to 1 November 19681969: 8 March 1969 to 3 December 19691970: 1 July 1970 to 6 December 19701971: 13 February 1971 to 7 December 19711972: 10 February 1972 to 30 November 19721973: 6 February 1973 to 10 December 19731974: 17 July 1974 to 19 November 19741975: 24 April 1975 to 7 December 19751976: 19 January 1976 to 31 October 19761977: 12 April 1977 to 23 December 19771978: 1 January 1978 to 13 September 19781979: 9 July 1979 to 26 November 19791980: 25 May 1980 to 13 December 19801981: 16 June 1981 to 20 November 19811982: 25 January 1982 to 20 December 19821983: 19 May 1983 to 18 October 19831984: 14 January 1984 to 6 December 19841985: 29 April 1985 to 9 November 19851986: 18 April 1986 to 5 December 19861987: 14 May 1987 to 27 November 19871988: 27 July 1988 to 26 December 19881989: 11 March 1989 to 12 November 19891990: 23 January 1990 to 20 December 19901991: 2 January 1991 to 17 November 19911992: 7 January 1992 to 20 October 19921993: 10 January 1993 to 31 December 19931994: 8 March 1994 to 30 December 19941995: 22 January 1995 to 16 November 19951996: 15 February 1996 to 27 November 19961997: 9 February 1997 to 26 December 19971998: 3 March 1998 to 25 December 19981999: 4 January 1999 to 11 December 19992000: 12 January 2000 to 12 December 20002001: 24 January 2001 to 14 November 20012002: 28 January 2002 to 20 September 20022003: 9 April 2003 to 24 December 20032004: 31 January 2004 to 29 December 20042005: 8 January 2005 to 16 December 20052006: 28 March 2006 to 31 December 20062007: 1 January 2007 to 7 December 20072008: 19 January 2008 to 23 November 20082009: 9 March 2009 to 9 November 20092010: 22 February 2010 to 17 November 20102011: 13 May 2011 to 29 December 20112012: 3 January 2012 to 25 October 20122013: 21 May 2013 to 20 November 20132014: 6 January 2014 to 12 December 20142015: 10 January 2015 to 5 December 20152016: 25 January 2016 to 27 October 20162017: 28 April 2017 to 11 December 20172018: 1 April 2018 to 12 November 20182019: 17 January 2019 to 6 December 20192020: 12 January 2020 to 18 December 20202021: 19 May 2021 to 7 November 20212022: 30 January 2022 to 10 December 20222023: 3 January 2023 to 24 November 20232024: 24 February 2024 to 24 December 20242025: 1 January 2025 to 13 November 202519541963197219811990199920082017JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Heltermaa meeting 10 mm (0.39 in).
First to last qualifying date each year at Heltermaa
YearFirst dateLast date
19541954-07-111954-08-30
19551955-07-021955-12-08
19561956-06-091956-12-02
19571957-02-011957-12-10
19581958-01-181958-11-11
19591959-02-191959-09-21
19601960-05-251960-12-10
19611961-01-291961-11-26
19621962-01-221962-11-20
19631963-07-081963-11-02
19641964-07-071964-11-06
19651965-06-221965-12-09
19661966-01-291966-10-23
19671967-08-051967-12-15
19681968-05-181968-11-01
19691969-03-081969-12-03
19701970-07-011970-12-06
19711971-02-131971-12-07
19721972-02-101972-11-30
19731973-02-061973-12-10
19741974-07-171974-11-19
19751975-04-241975-12-07
19761976-01-191976-10-31
19771977-04-121977-12-23
19781978-01-011978-09-13
19791979-07-091979-11-26
19801980-05-251980-12-13
19811981-06-161981-11-20
19821982-01-251982-12-20
19831983-05-191983-10-18
19841984-01-141984-12-06
19851985-04-291985-11-09
19861986-04-181986-12-05
19871987-05-141987-11-27
19881988-07-271988-12-26
19891989-03-111989-11-12
19901990-01-231990-12-20
19911991-01-021991-11-17
19921992-01-071992-10-20
19931993-01-101993-12-31
19941994-03-081994-12-30
19951995-01-221995-11-16
19961996-02-151996-11-27
19971997-02-091997-12-26
19981998-03-031998-12-25
19991999-01-041999-12-11
20002000-01-122000-12-12
20012001-01-242001-11-14
20022002-01-282002-09-20
20032003-04-092003-12-24
20042004-01-312004-12-29
20052005-01-082005-12-16
20062006-03-282006-12-31
20072007-01-012007-12-07
20082008-01-192008-11-23
20092009-03-092009-11-09
20102010-02-222010-11-17
20112011-05-132011-12-29
20122012-01-032012-10-25
20132013-05-212013-11-20
20142014-01-062014-12-12
20152015-01-102015-12-05
20162016-01-252016-10-27
20172017-04-282017-12-11
20182018-04-012018-11-12
20192019-01-172019-12-06
20202020-01-122020-12-18
20212021-05-192021-11-07
20222022-01-302022-12-10
20232023-01-032023-11-24
20242024-02-242024-12-24
20252025-01-012025-11-13

Every Fixed Threshold

Fixed thresholds at Heltermaa
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain7228201216
25 mm (0.98 in): Days with 25 mm or more rain48520051
50 mm (1.97 in): Days with 50 mm or more rain5219881

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1954.

Download the Data

  • Data for Heltermaa 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).