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

Marviken Threshold Days by Year (SWE00138544)

12 fixed thresholds counted per year at Marviken (SWE00138544): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Marviken Thresholds

  • Marviken: days with 10 mm (0.39 in) or more of precipitation in 36 years, most in 1987 with 19.
  • Marviken: days with a maximum temperature at or below 0 C (32 F) in 35 years, most in 1969 with 82.
  • Marviken: nights with a minimum temperature at or below 0 C (32 F) in 35 years, most in 1980 with 168.
  • Marviken: nights with a minimum temperature at or below -10 C (14 F) in 35 years, most in 1969 with 52.
  • 12 fixed thresholds have at least one qualifying day at Marviken.
16 years with a qualifying day
Days at or above 30 C (86 F) per year at Marviken Days per year at Marviken with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 6 in 1975. 02461968: 11969: 11970: 21972: 21973: 11975: 61982: 51983: 11986: 11989: 31991: 21994: 61995: 21997: 11999: 22001: 119681970197319821986199119951999
Days per year at Marviken with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 6 in 1975.
Days at or above 30 C (86 F) per year at Marviken
YearDaysDecade average
196811
196911
197022.8
197222.8
197312.8
197562.8
198252.5
198312.5
198612.5
198932.5
199122.6
199462.6
199522.6
199712.6
199922.6
200111
First to last qualifying date each year at Marviken For each year, a bar from the first to the last day at Marviken meeting 30 C (86 F). 1968: 18 June 1968 to 18 June 19681969: 7 August 1969 to 7 August 19691970: 19 June 1970 to 20 June 19701972: 29 June 1972 to 18 July 19721973: 25 June 1973 to 25 June 19731975: 4 August 1975 to 11 August 19751982: 5 June 1982 to 8 August 19821983: 11 August 1983 to 11 August 19831986: 26 June 1986 to 26 June 19861989: 5 July 1989 to 8 July 19891991: 6 July 1991 to 7 July 19911994: 13 July 1994 to 30 July 19941995: 18 August 1995 to 19 August 19951997: 20 August 1997 to 20 August 19971999: 12 July 1999 to 3 August 19992001: 6 July 2001 to 6 July 200119681970197319821986199119951999JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Marviken meeting 30 C (86 F).
First to last qualifying date each year at Marviken
YearFirst dateLast date
19681968-06-181968-06-18
19691969-08-071969-08-07
19701970-06-191970-06-20
19721972-06-291972-07-18
19731973-06-251973-06-25
19751975-08-041975-08-11
19821982-06-051982-08-08
19831983-08-111983-08-11
19861986-06-261986-06-26
19891989-07-051989-07-08
19911991-07-061991-07-07
19941994-07-131994-07-30
19951995-08-181995-08-19
19971997-08-201997-08-20
19991999-07-121999-08-03
20012001-07-062001-07-06

Every Fixed Threshold

Fixed thresholds at Marviken
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days16619751
35 C (95 F): Days1219752
90 F (32.2 C): Days3419751
0 C (32 F): Ice days (max3582196935
0 C (32 F): Frost days (min351681980119
-10 C (14 F): Days with min3552196925
-20 C (-4 F): Days with min211319704
-30 C (-22 F): Days with min1119791
20 C (68 F): Tropical nights (min1119971
10 mm (0.39 in): Days with 10 mm or more rain3619198713
25 mm (0.98 in): Days with 25 mm or more rain29519942
50 mm (1.97 in): Days with 50 mm or more rain7119721

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 Marviken 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).