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Data as of 2025-12-31
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Built 2026-10-19 (19 October 2026)

Mariedamm Threshold Days by Year (SWE00138654)

10 fixed thresholds counted per year at Mariedamm (SWE00138654): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Mariedamm Thresholds

  • Mariedamm: days with 10 mm (0.39 in) or more of precipitation in 21 years, most in 1977 with 39.
  • Mariedamm: days with 25 mm (0.98 in) or more of precipitation in 19 years, most in 1981 with 11.
  • Mariedamm: days with a maximum temperature at or below 0 C (32 F) in 17 years, most in 1969 with 98.
  • Mariedamm: nights with a minimum temperature at or below 0 C (32 F) in 17 years, most in 1980 with 185.
  • 10 fixed thresholds have at least one qualifying day at Mariedamm.
5 years with a qualifying day
Days at or above 30 C (86 F) per year at Mariedamm Days per year at Mariedamm with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 8 in 1975. 024681968: 11969: 61970: 11973: 11975: 819681969197019731975
Days per year at Mariedamm with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 8 in 1975.
Days at or above 30 C (86 F) per year at Mariedamm
YearDaysDecade average
196813.5
196963.5
197013.3
197313.3
197583.3
First to last qualifying date each year at Mariedamm For each year, a bar from the first to the last day at Mariedamm meeting 30 C (86 F). 1968: 2 July 1968 to 2 July 19681969: 29 July 1969 to 7 August 19691970: 19 June 1970 to 19 June 19701973: 7 July 1973 to 7 July 19731975: 4 August 1975 to 11 August 197519681969197019731975JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Mariedamm meeting 30 C (86 F).
First to last qualifying date each year at Mariedamm
YearFirst dateLast date
19681968-07-021968-07-02
19691969-07-291969-08-07
19701970-06-191970-06-19
19731973-07-071973-07-07
19751975-08-041975-08-11

Every Fixed Threshold

Fixed thresholds at Mariedamm
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days5819758
90 F (32.2 C): Days1419754
0 C (32 F): Ice days (max1798196972
0 C (32 F): Frost days (min171851980169
-10 C (14 F): Days with min1757198046
-20 C (-4 F): Days with min131019783
-30 C (-22 F): Days with min1119791
10 mm (0.39 in): Days with 10 mm or more rain2139197733
25 mm (0.98 in): Days with 25 mm or more rain1911198111
50 mm (1.97 in): Days with 50 mm or more rain4119451

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1968.

Download the Data

  • Data for Mariedamm 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).