Herrvik Weather Records (SWE00138088)

Record envelope, standing records and threshold days for Herrvik (SWE00138088), Sweden, with 44 years of record.

Key Facts for Herrvik

Herrvik (SWE00138088) is a weather station in Sweden at 57.42 latitude and 18.92 longitude, 13 m (43 ft) above sea level.
The station reports from 1968 to 2011, 44 years of record.
1,464 records set at Herrvik still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Herrvik set a daily record precipitation of 27.0 mm (1.1 in) on 29 July 2011.

About the Station

Location: Sweden, 57.42 latitude, 18.92 longitude.
Elevation: 13 m (43 ft).
Period of record: 1968 to 2011, 44 years.
Eligible elements: 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 Herrvik. 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 Herrvik, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	10.4 C (50.7 F)	-18.0 C (-0.4 F)	n/a	n/a
Feb	13.2 C (55.8 F)	-18.0 C (-0.4 F)	n/a	n/a
Mar	16.6 C (61.9 F)	-15.8 C (3.6 F)	n/a	n/a
Apr	22.4 C (72.3 F)	-7.5 C (18.5 F)	n/a	n/a
May	27.8 C (82.0 F)	-5.0 C (23.0 F)	n/a	n/a
Jun	30.5 C (86.9 F)	-0.5 C (31.1 F)	n/a	n/a
Jul	29.8 C (85.6 F)	4.3 C (39.7 F)	n/a	n/a
Aug	31.0 C (87.8 F)	4.0 C (39.2 F)	n/a	n/a
Sep	24.6 C (76.3 F)	-2.0 C (28.4 F)	n/a	n/a
Oct	21.4 C (70.5 F)	-8.0 C (17.6 F)	n/a	n/a
Nov	13.3 C (55.9 F)	-12.0 C (10.4 F)	n/a	n/a
Dec	11.0 C (51.8 F)	-15.5 C (4.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Herrvik still stand. 1987 holds the most, with 89.

Standing records at Herrvik by the year they were set
Year set	Standing records
1968	38
1969	64
1970	49
1971	61
1972	46
1973	61
1974	31
1975	43
1976	47
1977	45
1978	76
1979	45
1980	41
1981	48
1982	47
1983	44
1984	35
1985	51
1986	53
1987	89
1988	33
1989	75
1990	87
1991	38
1992	56
1993	58
1994	45
1995	58

All-Time Record Progression

1 new records

1 all-time records were set at Herrvik between 8 July 2009 and 8 July 2009. Each dot is a new record.

Wettest Day of Each Month

Jul: 76.0 mm (3.0 in)

The wettest day on record for each calendar month at Herrvik. The most was 76.0 mm (3.0 in) on 8 July 2009.

Record daily precipitation for each month at Herrvik
Month	Record daily precipitation (mm)	Date
Jan	23.1 mm (0.9 in)	15 January 1974
Feb	18.6 mm (0.7 in)	7 February 1974
Mar	20.9 mm (0.8 in)	14 March 1992
Apr	25.8 mm (1.0 in)	29 April 1985
May	38.6 mm (1.5 in)	13 May 1995
Jun	40.1 mm (1.6 in)	28 June 1982
Jul	76.0 mm (3.0 in)	8 July 2009
Aug	45.5 mm (1.8 in)	29 August 1969
Sep	36.8 mm (1.4 in)	15 September 1995
Oct	28.7 mm (1.1 in)	9 October 1973
Nov	20.4 mm (0.8 in)	4 November 1989
Dec	16.8 mm (0.7 in)	9 December 1994

Period of Record Coverage

1968 to 1995

28 years of record at Herrvik, 1968 to 1995. 1 years have data for under 90 percent of days and are left out of rankings: 1968.

Days with data per year at Herrvik
Year	Days with data	Share of year	Complete
1968	184	50%	No
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	366	100%	Yes
1981	365	100%	Yes
1982	365	100%	Yes
1983	365	100%	Yes
1984	366	100%	Yes
1985	365	100%	Yes
1986	365	100%	Yes
1987	365	100%	Yes
1988	366	100%	Yes
1989	365	100%	Yes
1990	365	100%	Yes
1991	365	100%	Yes
1992	366	100%	Yes
1993	365	100%	Yes
1994	365	100%	Yes
1995	365	100%	Yes

Latest Records

Latest records at Herrvik
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
29 July 2011	Herrvik, SE	daily rain	27.0 mm (1.1 in)	4.9 mm (0.19 in)	40 years	22 of 100 (Routine)
28 July 2011	Herrvik, SE	daily rain	18.2 mm (0.7 in)	9.3 mm (0.37 in)	0 years	16 of 100 (Routine)
11 June 2011	Herrvik, SE	daily rain	9.9 mm (0.39 in)	3.9 mm (0.15 in)	24 years	17 of 100 (Routine)
3 April 2011	Herrvik, SE	daily rain	16.9 mm (0.7 in)	9.9 mm (0.39 in)	34 years	20 of 100 (Routine)
1 January 2011	Herrvik, SE	daily rain	7.3 mm (0.29 in)	2.0 mm (0.08 in)	4 years	11 of 100 (Routine)
23 December 2010	Herrvik, SE	daily rain	11.9 mm (0.5 in)	0.4 mm (0.02 in)	32 years	14 of 100 (Routine)
25 November 2010	Herrvik, SE	daily rain	14.6 mm (0.6 in)	5.9 mm (0.23 in)	23 years	20 of 100 (Routine)
23 November 2010	Herrvik, SE	daily rain	16.7 mm (0.7 in)	2.7 mm (0.11 in)	25 years	18 of 100 (Routine)
22 November 2010	Herrvik, SE	daily rain	9.2 mm (0.36 in)	3.8 mm (0.15 in)	23 years	20 of 100 (Routine)
21 November 2010	Herrvik, SE	daily rain	8.2 mm (0.32 in)	4.4 mm (0.17 in)	28 years	20 of 100 (Routine)
9 November 2010	Herrvik, SE	daily rain	14.4 mm (0.6 in)	3.5 mm (0.14 in)	24 years	20 of 100 (Routine)
8 November 2010	Herrvik, SE	daily rain	13.5 mm (0.5 in)	1.3 mm (0.05 in)	4 years	8 of 100 (Routine)
20 October 2010	Herrvik, SE	daily rain	25.6 mm (1.0 in)	10.0 mm (0.4 in)	28 years	35 of 100 (Notable)
20 September 2010	Herrvik, SE	daily rain	7.9 mm (0.31 in)	1.9 mm (0.07 in)	28 years	15 of 100 (Routine)
16 August 2010	Herrvik, SE	daily rain	21.8 mm (0.9 in)	4.7 mm (0.19 in)	36 years	20 of 100 (Routine)
7 August 2010	Herrvik, SE	daily rain	6.5 mm (0.26 in)	2.6 mm (0.10 in)	16 years	11 of 100 (Routine)
28 July 2010	Herrvik, SE	daily rain	8.9 mm (0.35 in)	0.4 mm (0.02 in)	17 years	9 of 100 (Routine)
24 July 2010	Herrvik, SE	daily rain	47.8 mm (1.9 in)	23.6 mm (0.9 in)	31 years	45 of 100 (Notable)
15 May 2010	Herrvik, SE	daily rain	7.0 mm (0.28 in)	0.8 mm (0.03 in)	40 years	17 of 100 (Routine)
4 May 2010	Herrvik, SE	daily rain	7.3 mm (0.29 in)	3.1 mm (0.12 in)	21 years	16 of 100 (Routine)

Climate Trend

27 complete years, 1969 to 1995

One stripe for each of 27 complete years at Herrvik, 1969 to 1995. Blue stripes are years cooler than the station's own mean of 6.9 C (44.3 F); red stripes are warmer. The coolest year was 1987, at 5.3 C (41.6 F), and the warmest was 1990, at 8.6 C (47.5 F). The strongest colour marks a difference of 1.8 C (3.2 F).

Annual mean temperature at Herrvik as warming stripes, 1969 to 1995
Year	Annual mean temperature	Difference from the station mean
1969	6.3 C	-0.56 C
1970	5.6 C	-1.22 C
1971	6.7 C	-0.12 C
1972	7.2 C	+0.30 C
1973	7.3 C	+0.43 C
1974	7.3 C	+0.46 C
1975	8.1 C	+1.29 C
1976	6.1 C	-0.75 C
1977	6.4 C	-0.47 C
1978	6.2 C	-0.63 C
1979	5.9 C	-0.92 C
1980	6.1 C	-0.75 C
1981	6.3 C	-0.56 C
1982	6.9 C	+0.08 C
1983	7.3 C	+0.45 C
1984	7.3 C	+0.42 C
1985	5.5 C	-1.35 C
1986	6.3 C	-0.56 C
1987	5.3 C	-1.53 C
1988	6.9 C	+0.06 C
1989	8.2 C	+1.36 C
1990	8.6 C	+1.78 C
1991	7.5 C	+0.64 C
1992	7.9 C	+1.04 C
1993	7.1 C	+0.23 C
1994	7.2 C	+0.39 C
1995	7.4 C	+0.54 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

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

1968 to 2011

Yearly extremes at Herrvik: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	31.0 C (87.8 F)	1975	27.2 C (81.0 F)	28
Coldest night (TNn)	-18.0 C (-0.4 F)	1979	-13.0 C (8.6 F)	28
Wettest day (Rx1day)	76.0 mm (3.0 in)	2009	27.7 mm (1.1 in)	34
Wettest five days (Rx5day)	97.1 mm (3.8 in)	2009	47.3 mm (1.9 in)	34
Longest dry spell (CDD)	45 days	1994	28 days	34

Hottest day (TXx)

The hottest day of the year at Herrvik, 1968 to 2011. The record is 31.0 C (87.8 F) in 1975, marked on the chart; the median year is 27.2 C (81.0 F).

Hottest day (TXx) at Herrvik by year
Year	Hottest day (TXx)
1968	25.7 C (78.3 F)
1969	29.2 C (84.6 F)
1970	30.5 C (86.9 F)
1971	25.6 C (78.1 F)
1972	27.8 C (82.0 F)
1973	27.6 C (81.7 F)
1974	23.6 C (74.5 F)
1975	31.0 C (87.8 F)
1976	27.7 C (81.9 F)
1977	23.6 C (74.5 F)
1978	26.8 C (80.2 F)
1979	25.0 C (77.0 F)
1980	25.1 C (77.2 F)
1981	24.4 C (75.9 F)
1982	29.0 C (84.2 F)
1983	28.5 C (83.3 F)
1984	25.2 C (77.4 F)
1985	25.0 C (77.0 F)
1986	27.0 C (80.6 F)
1987	23.5 C (74.3 F)
1988	25.0 C (77.0 F)
1989	27.8 C (82.0 F)
1990	26.7 C (80.1 F)
1991	27.4 C (81.3 F)
1992	28.0 C (82.4 F)
1993	27.8 C (82.0 F)
1994	29.8 C (85.6 F)
1995	30.0 C (86.0 F)
2006	n/a
2007	n/a
2008	n/a
2009	n/a
2010	n/a
2011	n/a

Coldest night (TNn)

The coldest night of the year at Herrvik, 1968 to 2011. The record is -18.0 C (-0.4 F) in 1979, marked on the chart; the median year is -13.0 C (8.6 F).

Coldest night (TNn) at Herrvik by year
Year	Coldest night (TNn)
1968	-5.9 C (21.4 F)
1969	-16.4 C (2.5 F)
1970	-16.9 C (1.6 F)
1971	-13.7 C (7.3 F)
1972	-9.1 C (15.6 F)
1973	-12.2 C (10.0 F)
1974	-5.6 C (21.9 F)
1975	-9.7 C (14.5 F)
1976	-14.2 C (6.4 F)
1977	-10.8 C (12.6 F)
1978	-15.5 C (4.1 F)
1979	-18.0 C (-0.4 F)
1980	-16.5 C (2.3 F)
1981	-15.5 C (4.1 F)
1982	-11.2 C (11.8 F)
1983	-10.8 C (12.6 F)
1984	-11.8 C (10.8 F)
1985	-18.0 C (-0.4 F)
1986	-15.6 C (3.9 F)
1987	-16.0 C (3.2 F)
1988	-12.4 C (9.7 F)
1989	-13.6 C (7.5 F)
1990	-7.3 C (18.9 F)
1991	-11.0 C (12.2 F)
1992	-9.0 C (15.8 F)
1993	-9.0 C (15.8 F)
1994	-14.4 C (6.1 F)
1995	-13.8 C (7.2 F)
2006	n/a
2007	n/a
2008	n/a
2009	n/a
2010	n/a
2011	n/a

Wettest day (Rx1day)

The wettest day of the year at Herrvik, 1968 to 2011. The record is 76.0 mm (3.0 in) in 2009, marked on the chart; the median year is 27.7 mm (1.1 in).

Wettest day (Rx1day) at Herrvik by year
Year	Wettest day (Rx1day)
1968	20.4 mm (0.8 in)
1969	45.5 mm (1.8 in)
1970	23.6 mm (0.9 in)
1971	20.0 mm (0.8 in)
1972	45.3 mm (1.8 in)
1973	28.7 mm (1.1 in)
1974	36.5 mm (1.4 in)
1975	36.8 mm (1.4 in)
1976	33.6 mm (1.3 in)
1977	20.4 mm (0.8 in)
1978	15.7 mm (0.6 in)
1979	32.5 mm (1.3 in)
1980	29.0 mm (1.1 in)
1981	24.7 mm (1.0 in)
1982	40.1 mm (1.6 in)
1983	22.2 mm (0.9 in)
1984	27.3 mm (1.1 in)
1985	25.8 mm (1.0 in)
1986	19.2 mm (0.8 in)
1987	24.0 mm (0.9 in)
1988	27.2 mm (1.1 in)
1989	34.4 mm (1.4 in)
1990	28.0 mm (1.1 in)
1991	44.5 mm (1.8 in)
1992	20.9 mm (0.8 in)
1993	36.3 mm (1.4 in)
1994	23.1 mm (0.9 in)
1995	38.6 mm (1.5 in)
2006	12.8 mm (0.5 in)
2007	28.2 mm (1.1 in)
2008	22.1 mm (0.9 in)
2009	76.0 mm (3.0 in)
2010	47.8 mm (1.9 in)
2011	27.0 mm (1.1 in)

Wettest five days (Rx5day)

The wettest five days of the year at Herrvik, 1968 to 2011. The record is 97.1 mm (3.8 in) in 2009, marked on the chart; the median year is 47.3 mm (1.9 in).

Wettest five days (Rx5day) at Herrvik by year
Year	Wettest five days (Rx5day)
1968	27.6 mm (1.1 in)
1969	81.0 mm (3.2 in)
1970	44.6 mm (1.8 in)
1971	33.2 mm (1.3 in)
1972	71.9 mm (2.8 in)
1973	72.9 mm (2.9 in)
1974	50.2 mm (2.0 in)
1975	57.8 mm (2.3 in)
1976	36.6 mm (1.4 in)
1977	43.5 mm (1.7 in)
1978	42.8 mm (1.7 in)
1979	55.7 mm (2.2 in)
1980	38.3 mm (1.5 in)
1981	49.2 mm (1.9 in)
1982	60.6 mm (2.4 in)
1983	34.4 mm (1.4 in)
1984	68.4 mm (2.7 in)
1985	46.4 mm (1.8 in)
1986	58.1 mm (2.3 in)
1987	43.5 mm (1.7 in)
1988	36.9 mm (1.5 in)
1989	45.9 mm (1.8 in)
1990	45.7 mm (1.8 in)
1991	63.5 mm (2.5 in)
1992	38.6 mm (1.5 in)
1993	41.7 mm (1.6 in)
1994	85.3 mm (3.4 in)
1995	53.9 mm (2.1 in)
2006	32.0 mm (1.3 in)
2007	39.8 mm (1.6 in)
2008	48.2 mm (1.9 in)
2009	97.1 mm (3.8 in)
2010	57.0 mm (2.2 in)
2011	50.0 mm (2.0 in)

Longest dry spell (CDD)

The longest dry spell of the year at Herrvik, 1968 to 2011. The record is 45 days in 1994, marked on the chart; the median year is 28 days.

Longest dry spell (CDD) at Herrvik by year
Year	Longest dry spell (CDD)
1968	18 days
1969	33 days
1970	19 days
1971	23 days
1972	30 days
1973	37 days
1974	25 days
1975	32 days
1976	24 days
1977	20 days
1978	30 days
1979	27 days
1980	21 days
1981	34 days
1982	40 days
1983	33 days
1984	27 days
1985	26 days
1986	22 days
1987	36 days
1988	20 days
1989	30 days
1990	34 days
1991	21 days
1992	31 days
1993	19 days
1994	45 days
1995	37 days
2006	24 days
2007	20 days
2008	28 days
2009	26 days
2010	35 days
2011	31 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

27 years with a frost

Across 27 years with a frost, the median last spring frost at Herrvik falls on 6 May and the median first autumn frost on 14 October, which leaves a median of 163 days between them.

Fitted over all years, the growing season changes by -5.1 days per decade at this station.

Frost dates and growing season at Herrvik
Measure	Median, all years	Earliest period	Recent period (1969 to 1995)	Recent against earliest	Fitted trend
Last spring frost	6 May	n/a	6 May	n/a	+0.2 days per decade
First autumn frost	14 October	n/a	14 October	n/a	-4.9 days per decade
Growing days	163 days	n/a	163 days	n/a	-5.1 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

31 years, 1969 to 2010

A day with at least 28.8 mm (1.1 in) of rain is expected about once in 2 years. A day with at least 75.8 mm (3.0 in) of rain is expected about once in 100 years.

Rainfall return levels at Herrvik: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	28.8 mm (1.1 in)
5 years	38.8 mm (1.5 in)
10 years	46.4 mm (1.8 in)
25 years	57.1 mm (2.2 in)
50 years	66.0 mm (2.6 in)	Longer than the 31 years of record
100 years	75.8 mm (3.0 in)	Longer than the 31 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, 31 years of values from 1969 to 2010.

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: 76.0 mm (3.0 in) in 2009; 47.8 mm (1.9 in) in 2010; 45.5 mm (1.8 in) in 1969.

Download the Data

Data for Herrvik standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Herrvik 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).