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Data as of 2026-10-14
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Built 2026-10-16 (16 October 2026)

Sulina Threshold Days by Year

10 fixed thresholds counted per year at Sulina (ROM00015360): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Sulina Thresholds

  • Sulina: days with 10 mm (0.39 in) or more of precipitation in 66 years, most in 1966 with 14.
  • Sulina: nights with a minimum temperature at or below 0 C (32 F) in 65 years, most in 1987 with 82.
  • Sulina: nights with a minimum temperature at or above 20 C (68 F) in 65 years, most in 1994 with 69.
  • Sulina: days with a maximum temperature at or below 0 C (32 F) in 46 years, most in 1985 with 40.
  • 10 fixed thresholds have at least one qualifying day at Sulina.
25 years with a qualifying day
Days at or above 30 C (86 F) per year at Sulina Days per year at Sulina with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 11 in 2001. 0510151961: 11963: 31964: 11965: 11967: 21968: 21971: 11977: 11979: 11981: 11986: 21988: 11991: 51992: 31994: 31997: 11998: 91999: 92000: 42001: 112002: 112003: 22004: 12025: 32026: 10196119651971198119911997200020032026
Days per year at Sulina with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 11 in 2001.
Days at or above 30 C (86 F) per year at Sulina
YearDaysDecade average
196111.7
196331.7
196411.7
196511.7
196721.7
196821.7
197111
197711
197911
198111.3
198621.3
198811.3
199155
199235
199435
199715
199895
199995
200045.8
2001115.8
2002115.8
200325.8
200415.8
202536.5
2026106.5
First to last qualifying date each year at Sulina For each year, a bar from the first to the last day at Sulina meeting 30 C (86 F). 1961: 31 July 1961 to 31 July 19611963: 30 June 1963 to 8 August 19631964: 30 July 1964 to 30 July 19641965: 10 August 1965 to 10 August 19651967: 16 July 1967 to 6 August 19671968: 8 July 1968 to 9 July 19681971: 13 August 1971 to 13 August 19711977: 26 July 1977 to 26 July 19771979: 5 August 1979 to 5 August 19791981: 13 June 1981 to 13 June 19811986: 3 August 1986 to 9 August 19861988: 14 August 1988 to 14 August 19881991: 3 July 1991 to 10 August 19911992: 5 August 1992 to 18 August 19921994: 19 July 1994 to 10 August 19941997: 4 July 1997 to 4 July 19971998: 18 June 1998 to 5 August 19981999: 20 June 1999 to 28 July 19992000: 27 July 2000 to 22 August 20002001: 18 July 2001 to 26 August 20012002: 11 July 2002 to 5 August 20022003: 12 June 2003 to 5 July 20032004: 20 August 2004 to 20 August 20042025: 13 July 2025 to 4 August 20252026: 28 June 2026 to 11 August 20261961196719791991199820022026JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Sulina meeting 30 C (86 F).
First to last qualifying date each year at Sulina
YearFirst dateLast date
19611961-07-311961-07-31
19631963-06-301963-08-08
19641964-07-301964-07-30
19651965-08-101965-08-10
19671967-07-161967-08-06
19681968-07-081968-07-09
19711971-08-131971-08-13
19771977-07-261977-07-26
19791979-08-051979-08-05
19811981-06-131981-06-13
19861986-08-031986-08-09
19881988-08-141988-08-14
19911991-07-031991-08-10
19921992-08-051992-08-18
19941994-07-191994-08-10
19971997-07-041997-07-04
19981998-06-181998-08-05
19991999-06-201999-07-28
20002000-07-272000-08-22
20012001-07-182001-08-26
20022002-07-112002-08-05
20032003-06-122003-07-05
20042004-08-202004-08-20
20252025-07-132025-08-04
20262026-06-282026-08-11

Every Fixed Threshold

Fixed thresholds at Sulina
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days2511200110
90 F (32.2 C): Days4219981
0 C (32 F): Ice days (max464019859
0 C (32 F): Frost days (min6582198733
-10 C (14 F): Days with min412219851
20 C (68 F): Tropical nights (min6569199454
25 C (77 F): Days with min27620013
10 mm (0.39 in): Days with 10 mm or more rain661419665
25 mm (0.98 in): Days with 25 mm or more rain36419721
50 mm (1.97 in): Days with 50 mm or more rain10119661

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 Sulina 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).