Marviken Weather Records (SWE00138544)

Record envelope, standing records and threshold days for Marviken (SWE00138544), Sweden, with 38 years of record.

Key Facts for Marviken

Marviken (SWE00138544) is a weather station in Sweden at 58.55 latitude and 16.82 longitude, 10 m (33 ft) above sea level.
The station reports from 1965 to 2002, 38 years of record.
1,464 records set at Marviken still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Marviken set a daily record precipitation of 11.6 mm (0.5 in) on 20 June 2002.

About the Station

Location: Sweden, 58.55 latitude, 16.82 longitude.
Elevation: 10 m (33 ft).
Period of record: 1965 to 2002, 38 years.
Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

0 days at or beyond a record

The band shows the record high and record low for each calendar day at Marviken. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Marviken, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	11.7 C (53.1 F)	-30.7 C (-23.3 F)	n/a	n/a
Feb	15.0 C (59.0 F)	-29.9 C (-21.8 F)	n/a	n/a
Mar	20.0 C (68.0 F)	-21.4 C (-6.5 F)	n/a	n/a
Apr	26.6 C (79.9 F)	-12.3 C (9.9 F)	n/a	n/a
May	28.5 C (83.3 F)	-5.6 C (21.9 F)	n/a	n/a
Jun	32.5 C (90.5 F)	-1.4 C (29.5 F)	n/a	n/a
Jul	32.3 C (90.1 F)	2.2 C (36.0 F)	n/a	n/a
Aug	35.6 C (96.1 F)	0.9 C (33.6 F)	n/a	n/a
Sep	26.5 C (79.7 F)	-4.8 C (23.4 F)	n/a	n/a
Oct	21.6 C (70.9 F)	-9.5 C (14.9 F)	n/a	n/a
Nov	14.9 C (58.8 F)	-22.4 C (-8.3 F)	n/a	n/a
Dec	11.7 C (53.1 F)	-24.0 C (-11.2 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Marviken still stand. 1966 holds the most, with 55.

Standing records at Marviken by the year they were set
Year set	Standing records
1965	35
1966	55
1967	22
1968	55
1969	49
1970	50
1971	54
1972	26
1973	51
1974	24
1975	45
1976	33
1977	31
1978	54
1979	46
1980	37
1981	32
1982	36
1983	28
1984	22
1985	42
1986	31
1987	55
1988	31
1989	54
1990	49
1991	21
1992	38
1993	31
1994	39
1995	37
1996	31
1997	53
1998	31
1999	44
2000	46
2001	28
2002	18

All-Time Record Progression

1 new records

1 all-time records were set at Marviken between 29 August 1997 and 29 August 1997. Each dot is a new record.

Wettest Day of Each Month

Aug: 80.8 mm (3.2 in)

The wettest day on record for each calendar month at Marviken. The most was 80.8 mm (3.2 in) on 21 August 1994.

Record daily precipitation for each month at Marviken
Month	Record daily precipitation (mm)	Date
Jan	18.1 mm (0.7 in)	6 January 1988
Feb	19.6 mm (0.8 in)	7 February 1984
Mar	17.3 mm (0.7 in)	18 March 1974
Apr	33.5 mm (1.3 in)	17 April 1999
May	24.3 mm (1.0 in)	18 May 1967
Jun	36.7 mm (1.4 in)	13 June 2002
Jul	69.3 mm (2.7 in)	24 July 1979
Aug	80.8 mm (3.2 in)	21 August 1994
Sep	56.8 mm (2.2 in)	15 September 1972
Oct	31.6 mm (1.2 in)	30 October 1981
Nov	34.1 mm (1.3 in)	3 November 1965
Dec	33.2 mm (1.3 in)	3 December 1976

Period of Record Coverage

1965 to 2002

38 years of record at Marviken, 1965 to 2002. 3 years have data for under 90 percent of days and are left out of rankings: 1965, 1981, 2002.

Days with data per year at Marviken
Year	Days with data	Share of year	Complete
1965	256	70%	No
1966	365	100%	Yes
1967	365	100%	Yes
1968	366	100%	Yes
1969	365	100%	Yes
1970	365	100%	Yes
1971	365	100%	Yes
1972	366	100%	Yes
1973	365	100%	Yes
1974	365	100%	Yes
1975	365	100%	Yes
1976	366	100%	Yes
1977	365	100%	Yes
1978	365	100%	Yes
1979	365	100%	Yes
1980	361	99%	Yes
1981	306	84%	No
1982	365	100%	Yes
1983	334	92%	Yes
1984	366	100%	Yes
1985	335	92%	Yes
1986	365	100%	Yes
1987	335	92%	Yes
1988	366	100%	Yes
1989	365	100%	Yes
1990	365	100%	Yes
1991	359	98%	Yes
1992	366	100%	Yes
1993	365	100%	Yes
1994	365	100%	Yes
1995	364	100%	Yes
1996	366	100%	Yes
1997	365	100%	Yes
1998	365	100%	Yes
1999	365	100%	Yes
2000	366	100%	Yes
2001	365	100%	Yes
2002	181	50%	No

Latest Records

Latest records at Marviken
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 June 2002	Marviken, SE	daily rain	11.6 mm (0.5 in)	8.9 mm (0.35 in)	11 years	20 of 100 (Routine)
19 June 2002	Marviken, SE	monthly high min	18.3 C (64.9 F)	0.6 C (1.1 F)	25 years	21 of 100 (Routine)
13 June 2002	Marviken, SE	monthly rain	36.7 mm (1.4 in)	5.2 mm (0.20 in)	21 years	28 of 100 (Routine)
11 June 2002	Marviken, SE	daily high min	14.3 C (57.7 F)	0.8 C (1.4 F)	4 years	6 of 100 (Routine)
9 June 2002	Marviken, SE	daily high max	25.6 C (78.1 F)	1.9 C (3.4 F)	13 years	12 of 100 (Routine)
6 June 2002	Marviken, SE	daily high min	13.0 C (55.4 F)	0.2 C (0.4 F)	5 years	4 of 100 (Routine)
27 May 2002	Marviken, SE	daily rain	10.0 mm (0.4 in)	2.9 mm (0.11 in)	17 years	14 of 100 (Routine)
4 May 2002	Marviken, SE	daily rain	22.9 mm (0.9 in)	11.4 mm (0.4 in)	4 years	20 of 100 (Routine)
26 April 2002	Marviken, SE	daily high min	8.2 C (46.8 F)	0.7 C (1.3 F)	19 years	10 of 100 (Routine)
25 April 2002	Marviken, SE	daily high max	19.5 C (67.1 F)	1.4 C (2.5 F)	17 years	11 of 100 (Routine)
21 April 2002	Marviken, SE	daily high max	18.4 C (65.1 F)	1.2 C (2.2 F)	33 years	15 of 100 (Routine)
11 April 2002	Marviken, SE	daily low min	-7.1 C (19.2 F)	0.3 C (0.5 F)	36 years	13 of 100 (Routine)
29 March 2002	Marviken, SE	daily high max	16.0 C (60.8 F)	1.5 C (2.7 F)	33 years	16 of 100 (Routine)
5 March 2002	Marviken, SE	daily high min	4.0 C (39.2 F)	1.5 C (2.7 F)	28 years	14 of 100 (Routine)
18 February 2002	Marviken, SE	daily high min	3.0 C (37.4 F)	2.4 C (4.3 F)	28 years	14 of 100 (Routine)
17 February 2002	Marviken, SE	daily high max	7.1 C (44.8 F)	2.2 C (4.0 F)	19 years	12 of 100 (Routine)
17 February 2002	Marviken, SE	daily high min	3.4 C (38.1 F)	2.6 C (4.7 F)	7 years	8 of 100 (Routine)
16 February 2002	Marviken, SE	daily high max	8.1 C (46.6 F)	2.0 C (3.6 F)	7 years	9 of 100 (Routine)
11 February 2002	Marviken, SE	daily rain	8.6 mm (0.34 in)	1.6 mm (0.06 in)	28 years	16 of 100 (Routine)
3 February 2002	Marviken, SE	daily high min	7.2 C (45.0 F)	3.8 C (6.8 F)	12 years	11 of 100 (Routine)

Climate Trend

32 complete years, 1966 to 2001

One stripe for each of 32 complete years at Marviken, 1966 to 2001. Blue stripes are years cooler than the station's own mean of 6.4 C (43.6 F); red stripes are warmer. The coolest year was 1970, at 4.5 C (40.1 F), and the warmest was 1990, at 8.2 C (46.7 F). The strongest colour marks a difference of 2.0 C (3.6 F).

Annual mean temperature at Marviken as warming stripes, 1966 to 2001
Year	Annual mean temperature	Difference from the station mean
1966	4.9 C	-1.58 C
1967	6.4 C	-0.02 C
1968	5.8 C	-0.64 C
1969	5.2 C	-1.22 C
1970	4.5 C	-1.94 C
1971	6.1 C	-0.33 C
1972	6.7 C	+0.29 C
1973	6.6 C	+0.10 C
1974	6.9 C	+0.42 C
1975	7.5 C	+1.08 C
1976	5.6 C	-0.87 C
1977	5.9 C	-0.54 C
1978	5.5 C	-0.91 C
1979	5.2 C	-1.23 C
1980	5.3 C	-1.12 C
1982	6.4 C	-0.03 C
1984	6.7 C	+0.29 C
1986	5.5 C	-0.94 C
1988	6.5 C	+0.03 C
1989	7.8 C	+1.31 C
1990	8.2 C	+1.73 C
1991	7.1 C	+0.68 C
1992	7.5 C	+1.08 C
1993	6.6 C	+0.14 C
1994	7.0 C	+0.50 C
1995	6.7 C	+0.25 C
1996	5.7 C	-0.74 C
1997	7.3 C	+0.83 C
1998	6.6 C	+0.11 C
1999	7.6 C	+1.17 C
2000	7.9 C	+1.45 C
2001	7.0 C	+0.51 C

The annual mean temperature here has risen by 0.5 C (0.2 to 0.7) per decade over 1966 to 2001. In Fahrenheit: 0.9 F (0.4 to 1.3) per decade. The slope is a straight line fitted to 32 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Marviken
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.5 C (0.2 to 0.7) per decade	0.9 F (0.4 to 1.3) per decade	1966 to 2001	32	Rise
Mean daily maximum	0.4 C (0.1 to 0.7) per decade	0.7 F (0.2 to 1.2) per decade	1966 to 2001	32	Rise
Mean daily minimum	0.6 C (0.3 to 0.8) per decade	1.0 F (0.6 to 1.5) per decade	1966 to 2001	32	Rise

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1965 to 2002

Yearly extremes at Marviken: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	35.6 C (96.1 F)	1975	29.4 C (84.8 F)	38
Coldest night (TNn)	-30.7 C (-23.3 F)	1979	-20.7 C (-5.3 F)	38
Wettest day (Rx1day)	80.8 mm (3.2 in)	1994	32.1 mm (1.3 in)	38
Wettest five days (Rx5day)	146.3 mm (5.8 in)	1994	54.8 mm (2.2 in)	38
Longest dry spell (CDD)	45 days	1989	24 days	38

Hottest day (TXx)

The hottest day of the year at Marviken, 1965 to 2002. The record is 35.6 C (96.1 F) in 1975, marked on the chart; the median year is 29.4 C (84.8 F).

Hottest day (TXx) at Marviken by year
Year	Hottest day (TXx)
1965	24.0 C (75.2 F)
1966	28.3 C (82.9 F)
1967	26.5 C (79.7 F)
1968	30.0 C (86.0 F)
1969	31.2 C (88.2 F)
1970	32.5 C (90.5 F)
1971	28.0 C (82.4 F)
1972	30.0 C (86.0 F)
1973	30.0 C (86.0 F)
1974	27.6 C (81.7 F)
1975	35.6 C (96.1 F)
1976	29.8 C (85.6 F)
1977	25.6 C (78.1 F)
1978	29.3 C (84.7 F)
1979	28.5 C (83.3 F)
1980	25.6 C (78.1 F)
1981	25.9 C (78.6 F)
1982	31.7 C (89.1 F)
1983	30.0 C (86.0 F)
1984	27.3 C (81.1 F)
1985	26.1 C (79.0 F)
1986	30.5 C (86.9 F)
1987	25.6 C (78.1 F)
1988	27.2 C (81.0 F)
1989	31.2 C (88.2 F)
1990	29.8 C (85.6 F)
1991	30.3 C (86.5 F)
1992	27.4 C (81.3 F)
1993	27.4 C (81.3 F)
1994	32.3 C (90.1 F)
1995	30.1 C (86.2 F)
1996	27.9 C (82.2 F)
1997	30.6 C (87.1 F)
1998	25.0 C (77.0 F)
1999	30.4 C (86.7 F)
2000	28.5 C (83.3 F)
2001	30.4 C (86.7 F)
2002	29.4 C (84.9 F)

Coldest night (TNn)

The coldest night of the year at Marviken, 1965 to 2002. The record is -30.7 C (-23.3 F) in 1979, marked on the chart; the median year is -20.7 C (-5.3 F).

Coldest night (TNn) at Marviken by year
Year	Coldest night (TNn)
1965	-22.4 C (-8.3 F)
1966	-29.9 C (-21.8 F)
1967	-22.2 C (-8.0 F)
1968	-23.4 C (-10.1 F)
1969	-21.9 C (-7.4 F)
1970	-27.2 C (-17.0 F)
1971	-21.0 C (-5.8 F)
1972	-18.4 C (-1.1 F)
1973	-17.2 C (1.0 F)
1974	-14.5 C (5.9 F)
1975	-15.1 C (4.8 F)
1976	-20.2 C (-4.4 F)
1977	-20.3 C (-4.5 F)
1978	-25.7 C (-14.3 F)
1979	-30.7 C (-23.3 F)
1980	-22.9 C (-9.2 F)
1981	-21.9 C (-7.4 F)
1982	-21.4 C (-6.5 F)
1983	-14.1 C (6.6 F)
1984	-19.3 C (-2.7 F)
1985	-23.9 C (-11.0 F)
1986	-21.5 C (-6.7 F)
1987	-25.6 C (-14.1 F)
1988	-20.4 C (-4.7 F)
1989	-22.0 C (-7.6 F)
1990	-10.0 C (14.0 F)
1991	-15.2 C (4.6 F)
1992	-11.7 C (10.9 F)
1993	-12.1 C (10.2 F)
1994	-20.2 C (-4.4 F)
1995	-21.2 C (-6.2 F)
1996	-22.2 C (-8.0 F)
1997	-18.1 C (-0.6 F)
1998	-16.1 C (3.0 F)
1999	-17.0 C (1.4 F)
2000	-16.4 C (2.5 F)
2001	-24.0 C (-11.2 F)
2002	-20.1 C (-4.2 F)

Wettest day (Rx1day)

The wettest day of the year at Marviken, 1965 to 2002. The record is 80.8 mm (3.2 in) in 1994, marked on the chart; the median year is 32.1 mm (1.3 in).

Wettest day (Rx1day) at Marviken by year
Year	Wettest day (Rx1day)
1965	34.8 mm (1.4 in)
1966	19.7 mm (0.8 in)
1967	25.5 mm (1.0 in)
1968	30.7 mm (1.2 in)
1969	18.4 mm (0.7 in)
1970	33.8 mm (1.3 in)
1971	30.8 mm (1.2 in)
1972	56.8 mm (2.2 in)
1973	41.1 mm (1.6 in)
1974	29.6 mm (1.2 in)
1975	33.6 mm (1.3 in)
1976	33.2 mm (1.3 in)
1977	61.9 mm (2.4 in)
1978	61.2 mm (2.4 in)
1979	69.3 mm (2.7 in)
1980	37.0 mm (1.5 in)
1981	31.6 mm (1.2 in)
1982	17.6 mm (0.7 in)
1983	30.0 mm (1.2 in)
1984	27.7 mm (1.1 in)
1985	43.5 mm (1.7 in)
1986	23.3 mm (0.9 in)
1987	24.0 mm (0.9 in)
1988	25.5 mm (1.0 in)
1989	19.6 mm (0.8 in)
1990	27.8 mm (1.1 in)
1991	30.7 mm (1.2 in)
1992	22.5 mm (0.9 in)
1993	31.0 mm (1.2 in)
1994	80.8 mm (3.2 in)
1995	42.3 mm (1.7 in)
1996	53.2 mm (2.1 in)
1997	32.5 mm (1.3 in)
1998	57.2 mm (2.3 in)
1999	33.5 mm (1.3 in)
2000	29.6 mm (1.2 in)
2001	47.0 mm (1.9 in)
2002	36.7 mm (1.4 in)

Wettest five days (Rx5day)

The wettest five days of the year at Marviken, 1965 to 2002. The record is 146.3 mm (5.8 in) in 1994, marked on the chart; the median year is 54.8 mm (2.2 in).

Wettest five days (Rx5day) at Marviken by year
Year	Wettest five days (Rx5day)
1965	55.8 mm (2.2 in)
1966	29.8 mm (1.2 in)
1967	62.6 mm (2.5 in)
1968	54.7 mm (2.2 in)
1969	29.3 mm (1.2 in)
1970	41.4 mm (1.6 in)
1971	59.3 mm (2.3 in)
1972	64.1 mm (2.5 in)
1973	54.9 mm (2.2 in)
1974	55.4 mm (2.2 in)
1975	42.2 mm (1.7 in)
1976	53.8 mm (2.1 in)
1977	66.3 mm (2.6 in)
1978	109.4 mm (4.3 in)
1979	80.5 mm (3.2 in)
1980	95.5 mm (3.8 in)
1981	63.1 mm (2.5 in)
1982	42.9 mm (1.7 in)
1983	54.5 mm (2.1 in)
1984	46.1 mm (1.8 in)
1985	56.6 mm (2.2 in)
1986	43.1 mm (1.7 in)
1987	58.6 mm (2.3 in)
1988	34.4 mm (1.4 in)
1989	38.2 mm (1.5 in)
1990	36.7 mm (1.4 in)
1991	55.0 mm (2.2 in)
1992	51.1 mm (2.0 in)
1993	54.7 mm (2.2 in)
1994	146.3 mm (5.8 in)
1995	51.1 mm (2.0 in)
1996	76.0 mm (3.0 in)
1997	52.4 mm (2.1 in)
1998	67.7 mm (2.7 in)
1999	46.7 mm (1.8 in)
2000	53.8 mm (2.1 in)
2001	66.0 mm (2.6 in)
2002	59.5 mm (2.3 in)

Longest dry spell (CDD)

The longest dry spell of the year at Marviken, 1965 to 2002. The record is 45 days in 1989, marked on the chart; the median year is 24 days.

Longest dry spell (CDD) at Marviken by year
Year	Longest dry spell (CDD)
1965	19 days
1966	23 days
1967	14 days
1968	21 days
1969	34 days
1970	20 days
1971	37 days
1972	21 days
1973	25 days
1974	34 days
1975	20 days
1976	26 days
1977	19 days
1978	18 days
1979	33 days
1980	22 days
1981	24 days
1982	20 days
1983	35 days
1984	33 days
1985	21 days
1986	20 days
1987	28 days
1988	14 days
1989	45 days
1990	27 days
1991	25 days
1992	31 days
1993	32 days
1994	43 days
1995	19 days
1996	23 days
1997	24 days
1998	10 days
1999	22 days
2000	29 days
2001	17 days
2002	32 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Frost Dates and Growing Season

32 years with a frost

Across 32 years with a frost, the median last spring frost at Marviken falls on 24 May and the median first autumn frost on 28 September, which leaves a median of 128 days between them.

Fitted over all years, the growing season changes by +4.3 days per decade at this station.

Frost dates and growing season at Marviken
Measure	Median, all years	Earliest period	Recent period (1968 to 2001)	Recent against earliest	Fitted trend
Last spring frost	24 May	n/a	24 May	n/a	-1.5 days per decade
First autumn frost	28 September	n/a	28 September	n/a	+2.8 days per decade
Growing days	128 days	n/a	128 days	n/a	+4.3 days per decade

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Rainfall Return Levels

36 years, 1966 to 2001

A day with at least 32.6 mm (1.3 in) of rain is expected about once in 2 years. A day with at least 97.5 mm (3.8 in) of rain is expected about once in 100 years.

Rainfall return levels at Marviken: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	32.6 mm (1.3 in)
5 years	45.6 mm (1.8 in)
10 years	55.8 mm (2.2 in)
25 years	70.6 mm (2.8 in)
50 years	83.3 mm (3.3 in)	Longer than the 36 years of record
100 years	97.5 mm (3.8 in)	Longer than the 36 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 36 years of values from 1966 to 2001.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 80.8 mm (3.2 in) in 1994; 69.3 mm (2.7 in) in 1979; 61.9 mm (2.4 in) in 1977.

Download the Data

Data for Marviken standing records by year: CSV or JSON. Field meanings are on the data page.
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). Records are computed by this site and are not official.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).