Nynashamn Weather Records (SWE00138694)

Record envelope, standing records and threshold days for Nynashamn (SWE00138694), Sweden, with 82 years of record.

Key Facts for Nynashamn

Nynashamn (SWE00138694) is a weather station in Sweden at 58.92 latitude and 17.92 longitude, 15 m (49 ft) above sea level.
The station reports from 1945 to 2026, 82 years of record.
0 records set at Nynashamn still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Nynashamn set a daily record precipitation of 30.0 mm (1.2 in) on 28 August 2026 (provisional).

Provisional Records

Records set in the last 60 days are provisional until they clear the revision window.

About the Station

Location: Sweden, 58.92 latitude, 17.92 longitude.
Elevation: 15 m (49 ft).
Period of record: 1945 to 2026, 82 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 Nynashamn. 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 Nynashamn, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	n/a	n/a	n/a	n/a
Feb	n/a	n/a	n/a	n/a
Mar	n/a	n/a	n/a	n/a
Apr	n/a	n/a	n/a	n/a
May	n/a	n/a	n/a	n/a
Jun	n/a	n/a	n/a	n/a
Jul	n/a	n/a	n/a	n/a
Aug	n/a	n/a	n/a	n/a
Sep	n/a	n/a	n/a	n/a
Oct	n/a	n/a	n/a	n/a
Nov	n/a	n/a	n/a	n/a
Dec	n/a	n/a	n/a	n/a

Which Years Hold Standing Records

0 standing records

0 records at Nynashamn still stand.

Wettest Day of Each Month

Aug: 55.6 mm (2.2 in)

The wettest day on record for each calendar month at Nynashamn. The most was 55.6 mm (2.2 in) on 7 August 1962.

Record daily precipitation for each month at Nynashamn
Month	Record daily precipitation (mm)	Date
Jan	28.7 mm (1.1 in)	20 January 1948
Feb	31.5 mm (1.2 in)	13 February 2005
Mar	25.2 mm (1.0 in)	5 March 1954
Apr	30.5 mm (1.2 in)	17 April 1999
May	46.4 mm (1.8 in)	26 May 2021
Jun	49.1 mm (1.9 in)	26 June 1963
Jul	47.5 mm (1.9 in)	21 July 2002
Aug	55.6 mm (2.2 in)	7 August 1962
Sep	48.2 mm (1.9 in)	17 September 1994
Oct	39.0 mm (1.5 in)	31 October 1968
Nov	47.5 mm (1.9 in)	13 November 2007
Dec	36.4 mm (1.4 in)	5 December 1998

Latest Records

Latest records at Nynashamn
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
28 August 2026	Nynashamn, SE	daily rain (Provisional)	30.0 mm (1.2 in)	0.4 mm (0.02 in)	69 years	28 of 100 (Routine)
22 August 2026	Nynashamn, SE	daily rain (Provisional)	33.6 mm (1.3 in)	11.9 mm (0.5 in)	32 years	32 of 100 (Routine)
3 April 2026	Nynashamn, SE	daily rain	8.0 mm (0.31 in)	3.7 mm (0.15 in)	80 years	20 of 100 (Routine)
2 September 2025	Nynashamn, SE	daily rain	15.9 mm (0.6 in)	2.9 mm (0.11 in)	58 years	20 of 100 (Routine)
28 July 2025	Nynashamn, SE	daily rain	46.9 mm (1.8 in)	3.9 mm (0.15 in)	80 years	37 of 100 (Notable)
10 October 2024	Nynashamn, SE	daily rain	34.6 mm (1.4 in)	15.7 mm (0.6 in)	23 years	43 of 100 (Notable)
9 October 2024	Nynashamn, SE	daily rain	23.3 mm (0.9 in)	4.2 mm (0.17 in)	36 years	20 of 100 (Routine)
8 October 2024	Nynashamn, SE	daily rain	23.3 mm (0.9 in)	2.6 mm (0.10 in)	7 years	14 of 100 (Routine)
11 September 2024	Nynashamn, SE	daily rain	25.6 mm (1.0 in)	4.6 mm (0.18 in)	44 years	28 of 100 (Routine)
30 June 2024	Nynashamn, SE	daily rain	25.8 mm (1.0 in)	12.3 mm (0.5 in)	68 years	48 of 100 (Notable)
16 February 2024	Nynashamn, SE	daily rain	29.1 mm (1.1 in)	18.0 mm (0.7 in)	65 years	67 of 100 (Major)
21 December 2023	Nynashamn, SE	daily rain	13.0 mm (0.5 in)	3.4 mm (0.13 in)	20 years	20 of 100 (Routine)
3 November 2023	Nynashamn, SE	daily rain	20.0 mm (0.8 in)	2.6 mm (0.10 in)	33 years	20 of 100 (Routine)
24 March 2023	Nynashamn, SE	daily rain	11.4 mm (0.4 in)	0.6 mm (0.02 in)	76 years	20 of 100 (Routine)
2 January 2023	Nynashamn, SE	daily rain	15.6 mm (0.6 in)	4.8 mm (0.19 in)	56 years	20 of 100 (Routine)
21 November 2022	Nynashamn, SE	daily rain	21.0 mm (0.8 in)	3.8 mm (0.15 in)	21 years	20 of 100 (Routine)
30 September 2022	Nynashamn, SE	daily rain	16.9 mm (0.7 in)	3.4 mm (0.13 in)	55 years	20 of 100 (Routine)
13 September 2022	Nynashamn, SE	daily rain	13.5 mm (0.5 in)	2.7 mm (0.11 in)	20 years	17 of 100 (Routine)
24 February 2022	Nynashamn, SE	daily rain	13.2 mm (0.5 in)	1.5 mm (0.06 in)	34 years	20 of 100 (Routine)
1 January 2022	Nynashamn, SE	daily rain	14.0 mm (0.6 in)	1.5 mm (0.06 in)	72 years	20 of 100 (Routine)

Extremes by Year

1945 to 2026

Yearly extremes at Nynashamn: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	55.6 mm (2.2 in)	1962	30.3 mm (1.2 in)	80
Wettest five days (Rx5day)	88.4 mm (3.5 in)	2002	53.3 mm (2.1 in)	80
Longest dry spell (CDD)	56 days	1964	23 days	80

Wettest day (Rx1day)

The wettest day of the year at Nynashamn, 1945 to 2026. The record is 55.6 mm (2.2 in) in 1962, marked on the chart; the median year is 30.3 mm (1.2 in).

Wettest day (Rx1day) at Nynashamn by year
Year	Wettest day (Rx1day)
1945	43.0 mm (1.7 in)
1946	26.7 mm (1.1 in)
1947	22.5 mm (0.9 in)
1948	30.1 mm (1.2 in)
1949	35.5 mm (1.4 in)
1950	17.6 mm (0.7 in)
1951	35.8 mm (1.4 in)
1952	19.3 mm (0.8 in)
1953	18.1 mm (0.7 in)
1954	25.2 mm (1.0 in)
1955	20.1 mm (0.8 in)
1956	29.6 mm (1.2 in)
1957	20.2 mm (0.8 in)
1958	32.8 mm (1.3 in)
1959	26.0 mm (1.0 in)
1960	38.5 mm (1.5 in)
1961	30.2 mm (1.2 in)
1962	55.6 mm (2.2 in)
1963	49.1 mm (1.9 in)
1964	23.6 mm (0.9 in)
1965	23.4 mm (0.9 in)
1966	30.3 mm (1.2 in)
1967	30.9 mm (1.2 in)
1968	39.0 mm (1.5 in)
1969	32.5 mm (1.3 in)
1970	28.0 mm (1.1 in)
1971	20.0 mm (0.8 in)
1972	47.5 mm (1.9 in)
1973	20.6 mm (0.8 in)
1974	28.5 mm (1.1 in)
1975	29.1 mm (1.1 in)
1976	25.0 mm (1.0 in)
1977	22.2 mm (0.9 in)
1978	48.0 mm (1.9 in)
1979	42.2 mm (1.7 in)
1980	29.5 mm (1.2 in)
1981	25.7 mm (1.0 in)
1982	18.3 mm (0.7 in)
1983	28.3 mm (1.1 in)
1984	21.7 mm (0.9 in)
1985	25.8 mm (1.0 in)
1986	33.0 mm (1.3 in)
1987	27.0 mm (1.1 in)
1988	33.6 mm (1.3 in)
1989	27.5 mm (1.1 in)
1990	29.0 mm (1.1 in)
1991	25.1 mm (1.0 in)
1992	24.8 mm (1.0 in)
1993	44.0 mm (1.7 in)
1994	48.2 mm (1.9 in)
1995	31.3 mm (1.2 in)
1996	39.0 mm (1.5 in)
1997	41.1 mm (1.6 in)
1998	36.4 mm (1.4 in)
1999	30.5 mm (1.2 in)
2000	50.5 mm (2.0 in)
2001	31.0 mm (1.2 in)
2002	47.5 mm (1.9 in)
2003	24.1 mm (0.9 in)
2004	20.0 mm (0.8 in)
2005	31.8 mm (1.3 in)
2006	43.4 mm (1.7 in)
2007	47.5 mm (1.9 in)
2008	41.2 mm (1.6 in)
2009	34.7 mm (1.4 in)
2010	43.1 mm (1.7 in)
2011	31.3 mm (1.2 in)
2012	53.5 mm (2.1 in)
2013	23.0 mm (0.9 in)
2014	32.8 mm (1.3 in)
2015	26.3 mm (1.0 in)
2016	29.3 mm (1.2 in)
2017	39.7 mm (1.6 in)
2020	23.6 mm (0.9 in)
2021	46.4 mm (1.8 in)
2022	21.0 mm (0.8 in)
2023	20.0 mm (0.8 in)
2024	34.6 mm (1.4 in)
2025	46.9 mm (1.8 in)
2026	33.6 mm (1.3 in)

Wettest five days (Rx5day)

The wettest five days of the year at Nynashamn, 1945 to 2026. The record is 88.4 mm (3.5 in) in 2002, marked on the chart; the median year is 53.3 mm (2.1 in).

Wettest five days (Rx5day) at Nynashamn by year
Year	Wettest five days (Rx5day)
1945	77.2 mm (3.0 in)
1946	55.8 mm (2.2 in)
1947	52.1 mm (2.1 in)
1948	45.0 mm (1.8 in)
1949	87.1 mm (3.4 in)
1950	34.7 mm (1.4 in)
1951	42.5 mm (1.7 in)
1952	22.8 mm (0.9 in)
1953	33.3 mm (1.3 in)
1954	46.0 mm (1.8 in)
1955	30.9 mm (1.2 in)
1956	55.6 mm (2.2 in)
1957	33.2 mm (1.3 in)
1958	44.4 mm (1.7 in)
1959	53.0 mm (2.1 in)
1960	83.3 mm (3.3 in)
1961	57.4 mm (2.3 in)
1962	63.2 mm (2.5 in)
1963	51.3 mm (2.0 in)
1964	53.3 mm (2.1 in)
1965	41.2 mm (1.6 in)
1966	43.3 mm (1.7 in)
1967	82.3 mm (3.2 in)
1968	57.6 mm (2.3 in)
1969	70.8 mm (2.8 in)
1970	57.7 mm (2.3 in)
1971	54.5 mm (2.1 in)
1972	56.3 mm (2.2 in)
1973	34.4 mm (1.4 in)
1974	48.1 mm (1.9 in)
1975	30.9 mm (1.2 in)
1976	43.3 mm (1.7 in)
1977	46.2 mm (1.8 in)
1978	73.2 mm (2.9 in)
1979	61.0 mm (2.4 in)
1980	57.0 mm (2.2 in)
1981	47.6 mm (1.9 in)
1982	36.8 mm (1.4 in)
1983	47.4 mm (1.9 in)
1984	45.5 mm (1.8 in)
1985	55.1 mm (2.2 in)
1986	47.7 mm (1.9 in)
1987	33.9 mm (1.3 in)
1988	82.4 mm (3.2 in)
1989	41.1 mm (1.6 in)
1990	53.1 mm (2.1 in)
1991	43.7 mm (1.7 in)
1992	38.8 mm (1.5 in)
1993	58.5 mm (2.3 in)
1994	78.5 mm (3.1 in)
1995	40.8 mm (1.6 in)
1996	49.0 mm (1.9 in)
1997	65.5 mm (2.6 in)
1998	50.3 mm (2.0 in)
1999	68.4 mm (2.7 in)
2000	58.1 mm (2.3 in)
2001	85.5 mm (3.4 in)
2002	88.4 mm (3.5 in)
2003	43.5 mm (1.7 in)
2004	51.6 mm (2.0 in)
2005	84.3 mm (3.3 in)
2006	55.2 mm (2.2 in)
2007	73.2 mm (2.9 in)
2008	79.2 mm (3.1 in)
2009	64.1 mm (2.5 in)
2010	47.1 mm (1.9 in)
2011	62.4 mm (2.5 in)
2012	76.0 mm (3.0 in)
2013	33.2 mm (1.3 in)
2014	59.0 mm (2.3 in)
2015	53.2 mm (2.1 in)
2016	48.1 mm (1.9 in)
2017	62.0 mm (2.4 in)
2020	26.7 mm (1.1 in)
2021	70.7 mm (2.8 in)
2022	53.7 mm (2.1 in)
2023	53.5 mm (2.1 in)
2024	81.2 mm (3.2 in)
2025	56.1 mm (2.2 in)
2026	52.9 mm (2.1 in)

Longest dry spell (CDD)

The longest dry spell of the year at Nynashamn, 1945 to 2026. The record is 56 days in 1964, marked on the chart; the median year is 23 days.

Longest dry spell (CDD) at Nynashamn by year
Year	Longest dry spell (CDD)
1945	13 days
1946	19 days
1947	30 days
1948	34 days
1949	18 days
1950	20 days
1951	35 days
1952	13 days
1953	14 days
1954	20 days
1955	29 days
1956	20 days
1957	23 days
1958	25 days
1959	40 days
1960	27 days
1961	18 days
1962	43 days
1963	36 days
1964	56 days
1965	24 days
1966	21 days
1967	16 days
1968	21 days
1969	48 days
1970	24 days
1971	37 days
1972	22 days
1973	25 days
1974	40 days
1975	18 days
1976	37 days
1977	13 days
1978	17 days
1979	33 days
1980	23 days
1981	23 days
1982	18 days
1983	32 days
1984	28 days
1985	19 days
1986	17 days
1987	28 days
1988	15 days
1989	31 days
1990	20 days
1991	25 days
1992	17 days
1993	30 days
1994	25 days
1995	37 days
1996	39 days
1997	27 days
1998	13 days
1999	18 days
2000	18 days
2001	15 days
2002	41 days
2003	34 days
2004	14 days
2005	21 days
2006	22 days
2007	18 days
2008	24 days
2009	23 days
2010	19 days
2011	25 days
2012	18 days
2013	27 days
2014	28 days
2015	24 days
2016	23 days
2017	38 days
2020	21 days
2021	18 days
2022	38 days
2023	30 days
2024	23 days
2025	23 days
2026	27 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.

Rainfall Return Levels

74 years, 1945 to 2025

A day with at least 31.4 mm (1.2 in) of rain is expected about once in 2 years. A day with at least 61.7 mm (2.4 in) of rain is expected about once in 100 years.

Rainfall return levels at Nynashamn: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	31.4 mm (1.2 in)
5 years	40.2 mm (1.6 in)
10 years	45.8 mm (1.8 in)
25 years	52.5 mm (2.1 in)
50 years	57.2 mm (2.3 in)
100 years	61.7 mm (2.4 in)	Longer than the 74 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, 74 years of values from 1945 to 2025.

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: 55.6 mm (2.2 in) in 1962; 53.5 mm (2.1 in) in 2012; 50.5 mm (2.0 in) in 2000.

Download the Data

Data for Nynashamn standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Nynashamn 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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-15. Last revised 15 October 2026 (2026-10-15).

Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	n/a	n/a	n/a	n/a
Feb	n/a	n/a	n/a	n/a
Mar	n/a	n/a	n/a	n/a
Apr	n/a	n/a	n/a	n/a
May	n/a	n/a	n/a	n/a
Jun	n/a	n/a	n/a	n/a
Jul	n/a	n/a	n/a	n/a
Aug	n/a	n/a	n/a	n/a
Sep	n/a	n/a	n/a	n/a
Oct	n/a	n/a	n/a	n/a
Nov	n/a	n/a	n/a	n/a
Dec	n/a	n/a	n/a	n/a

Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	n/a	n/a	n/a	n/a
Feb	n/a	n/a	n/a	n/a
Mar	n/a	n/a	n/a	n/a
Apr	n/a	n/a	n/a	n/a
May	n/a	n/a	n/a	n/a
Jun	n/a	n/a	n/a	n/a
Jul	n/a	n/a	n/a	n/a
Aug	n/a	n/a	n/a	n/a
Sep	n/a	n/a	n/a	n/a
Oct	n/a	n/a	n/a	n/a
Nov	n/a	n/a	n/a	n/a
Dec	n/a	n/a	n/a	n/a