Built 2026-10-16 (16 October 2026)

Constanta Threshold Days by Year

14 fixed thresholds counted per year at Constanta (ROE00108892): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Constanta Thresholds

  • Constanta: nights with a minimum temperature at or below 0 C (32 F) in 66 years, most in 1985 with 85.
  • Constanta: nights with a minimum temperature at or above 20 C (68 F) in 66 years, most in 2023 with 58.
  • Constanta: days with 10 mm (0.39 in) or more of precipitation in 66 years, most in 2021 with 22.
  • Constanta: days with a maximum temperature at or above 30 C (86 F) in 65 years, most in 2010 with 34.
  • 14 fixed thresholds have at least one qualifying day at Constanta.
65 years with a qualifying day
Days at or above 30 C (86 F) per year at Constanta Days per year at Constanta with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 34 in 2010. 0102030401961: 31963: 51964: 11965: 31966: 81967: 31968: 51969: 51970: 41971: 81972: 31973: 51974: 21975: 41976: 11977: 51978: 31979: 61980: 21981: 11982: 21983: 51984: 11985: 61986: 51987: 101988: 41989: 31990: 31991: 31992: 121993: 81994: 181995: 71996: 71997: 61998: 141999: 202000: 142001: 282002: 212003: 112004: 32005: 112006: 122007: 212008: 122009: 112010: 342011: 142012: 302013: 102014: 152015: 122016: 312017: 202018: 122019: 252020: 202021: 172022: 202023: 172024: 282025: 192026: 81961196919761983199019972004201120182025
Days per year at Constanta with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 34 in 2010.
Days at or above 30 C (86 F) per year at Constanta
YearDaysDecade average
196134.1
196354.1
196414.1
196534.1
196684.1
196734.1
196854.1
196954.1
197044.1
197184.1
197234.1
197354.1
197424.1
197544.1
197614.1
197754.1
197834.1
197964.1
198023.9
198113.9
198223.9
198353.9
198413.9
198563.9
198653.9
1987103.9
198843.9
198933.9
199039.8
199139.8
1992129.8
199389.8
1994189.8
199579.8
199679.8
199769.8
1998149.8
1999209.8
20001414.4
20012814.4
20022114.4
20031114.4
2004314.4
20051114.4
20061214.4
20072114.4
20081214.4
20091114.4
20103420.3
20111420.3
20123020.3
20131020.3
20141520.3
20151220.3
20163120.3
20172020.3
20181220.3
20192520.3
20202018.4
20211718.4
20222018.4
20231718.4
20242818.4
20251918.4
2026818.4
First to last qualifying date each year at Constanta For each year, a bar from the first to the last day at Constanta meeting 30 C (86 F). 1961: 28 June 1961 to 11 August 19611963: 30 June 1963 to 8 August 19631964: 7 August 1964 to 7 August 19641965: 5 July 1965 to 11 August 19651966: 8 July 1966 to 24 August 19661967: 27 June 1967 to 6 August 19671968: 29 June 1968 to 17 September 19681969: 20 May 1969 to 17 August 19691970: 23 June 1970 to 7 August 19701971: 12 June 1971 to 13 August 19711972: 30 July 1972 to 17 September 19721973: 17 July 1973 to 17 October 19731974: 29 June 1974 to 6 August 19741975: 29 June 1975 to 13 August 19751976: 30 September 1976 to 30 September 19761977: 10 July 1977 to 23 August 19771978: 13 June 1978 to 9 August 19781979: 29 June 1979 to 25 August 19791980: 6 August 1980 to 22 August 19801981: 22 August 1981 to 22 August 19811982: 24 June 1982 to 29 August 19821983: 6 June 1983 to 29 July 19831984: 8 June 1984 to 8 June 19841985: 10 April 1985 to 23 September 19851986: 8 August 1986 to 21 August 19861987: 3 July 1987 to 27 September 19871988: 6 July 1988 to 14 August 19881989: 14 May 1989 to 23 August 19891990: 9 June 1990 to 16 August 19901991: 3 July 1991 to 10 August 19911992: 24 June 1992 to 28 August 19921993: 28 May 1993 to 11 September 19931994: 4 June 1994 to 14 August 19941995: 22 June 1995 to 4 August 19951996: 20 May 1996 to 6 August 19961997: 21 May 1997 to 10 October 19971998: 9 April 1998 to 25 August 19981999: 20 June 1999 to 27 September 19992000: 3 July 2000 to 23 August 20002001: 7 July 2001 to 25 September 20012002: 22 June 2002 to 24 September 20022003: 12 June 2003 to 24 August 20032004: 14 August 2004 to 22 August 20042005: 18 June 2005 to 17 August 20052006: 17 June 2006 to 4 September 20062007: 17 June 2007 to 30 August 20072008: 11 June 2008 to 24 August 20082009: 1 July 2009 to 24 July 20092010: 11 June 2010 to 28 August 20102011: 22 June 2011 to 13 September 20112012: 13 June 2012 to 15 September 20122013: 28 April 2013 to 14 August 20132014: 26 May 2014 to 13 August 20142015: 7 July 2015 to 6 September 20152016: 18 April 2016 to 18 September 20162017: 13 June 2017 to 13 September 20172018: 21 June 2018 to 24 September 20182019: 12 June 2019 to 22 August 20192020: 12 May 2020 to 27 August 20202021: 24 June 2021 to 12 August 20212022: 21 May 2022 to 16 September 20222023: 21 June 2023 to 21 October 20232024: 2 June 2024 to 27 August 20242025: 17 June 2025 to 2 September 20252026: 27 May 2026 to 11 August 202619611971198019891998200720162025JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Constanta meeting 30 C (86 F).
First to last qualifying date each year at Constanta
YearFirst dateLast date
19611961-06-281961-08-11
19631963-06-301963-08-08
19641964-08-071964-08-07
19651965-07-051965-08-11
19661966-07-081966-08-24
19671967-06-271967-08-06
19681968-06-291968-09-17
19691969-05-201969-08-17
19701970-06-231970-08-07
19711971-06-121971-08-13
19721972-07-301972-09-17
19731973-07-171973-10-17
19741974-06-291974-08-06
19751975-06-291975-08-13
19761976-09-301976-09-30
19771977-07-101977-08-23
19781978-06-131978-08-09
19791979-06-291979-08-25
19801980-08-061980-08-22
19811981-08-221981-08-22
19821982-06-241982-08-29
19831983-06-061983-07-29
19841984-06-081984-06-08
19851985-04-101985-09-23
19861986-08-081986-08-21
19871987-07-031987-09-27
19881988-07-061988-08-14
19891989-05-141989-08-23
19901990-06-091990-08-16
19911991-07-031991-08-10
19921992-06-241992-08-28
19931993-05-281993-09-11
19941994-06-041994-08-14
19951995-06-221995-08-04
19961996-05-201996-08-06
19971997-05-211997-10-10
19981998-04-091998-08-25
19991999-06-201999-09-27
20002000-07-032000-08-23
20012001-07-072001-09-25
20022002-06-222002-09-24
20032003-06-122003-08-24
20042004-08-142004-08-22
20052005-06-182005-08-17
20062006-06-172006-09-04
20072007-06-172007-08-30
20082008-06-112008-08-24
20092009-07-012009-07-24
20102010-06-112010-08-28
20112011-06-222011-09-13
20122012-06-132012-09-15
20132013-04-282013-08-14
20142014-05-262014-08-13
20152015-07-072015-09-06
20162016-04-182016-09-18
20172017-06-132017-09-13
20182018-06-212018-09-24
20192019-06-122019-08-22
20202020-05-122020-08-27
20212021-06-242021-08-12
20222022-05-212022-09-16
20232023-06-212023-10-21
20242024-06-022024-08-27
20252025-06-172025-09-02
20262026-05-272026-08-11

Every Fixed Threshold

Fixed thresholds at Constanta
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days653420108
35 C (95 F): Days9420001
90 F (32.2 C): Days451220071
100 F (37.8 C): Days1120071
0 C (32 F): Ice days (max653619858
0 C (32 F): Frost days (min6685198530
-10 C (14 F): Days with min462119851
20 C (68 F): Tropical nights (min6658202337
25 C (77 F): Days with min17720247
10 mm (0.39 in): Days with 10 mm or more rain6622202113
25 mm (0.98 in): Days with 25 mm or more rain59720141
50 mm (1.97 in): Days with 50 mm or more rain24220141
100 mm (3.94 in): Days with 100 mm or more rain2120041
200 mm (7.87 in): Days with 200 mm or more rain1120041

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1961.

Download the Data

  • Data for Constanta 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 (2026-10-14).