Hedrum Weather Records (NOE00110240)

Record envelope, standing records and threshold days for Hedrum (NOE00110240), Norway, with 132 years of record.

Key Facts for Hedrum

Hedrum (NOE00110240) is a weather station in Norway at 59.20 latitude and 9.97 longitude, 31 m (102 ft) above sea level.
The station reports from 1895 to 2026, 132 years of record.
0 records set at Hedrum still stand.
Records are tracked for prcp, snwd: an element needs 30 years of data to be eligible.
Hedrum set a daily record snow depth of 3.0 cm (1.2 in) on 15 May 2026.

About the Station

Location: Norway, 59.20 latitude, 9.97 longitude.
Elevation: 31 m (102 ft).
Period of record: 1895 to 2026, 132 years.
Eligible elements: prcp, snwd.

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 Hedrum. 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 Hedrum, 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 Hedrum still stand.

Wettest Day of Each Month

Sep: 111.0 mm (4.4 in)

The wettest day on record for each calendar month at Hedrum. The most was 111.0 mm (4.4 in) on 9 September 1905.

Record daily precipitation for each month at Hedrum
Month	Record daily precipitation (mm)	Date
Jan	76.0 mm (3.0 in)	12 January 1934
Feb	46.0 mm (1.8 in)	25 February 1989
Mar	56.0 mm (2.2 in)	18 March 1903
Apr	55.5 mm (2.2 in)	28 April 2017
May	67.5 mm (2.7 in)	27 May 1906
Jun	61.5 mm (2.4 in)	28 June 1927
Jul	73.0 mm (2.9 in)	3 July 2007
Aug	108.5 mm (4.3 in)	22 August 1988
Sep	111.0 mm (4.4 in)	9 September 1905
Oct	68.2 mm (2.7 in)	3 October 2010
Nov	63.5 mm (2.5 in)	16 November 1975
Dec	66.0 mm (2.6 in)	14 December 1936

Latest Records

Latest records at Hedrum
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 May 2026	Hedrum, NO	daily snow depth	3.0 cm (1.2 in)	3.0 cm (1.2 in)	129 years	20 of 100 (Routine)
14 May 2026	Hedrum, NO	daily snow depth	3.0 cm (1.2 in)	3.0 cm (1.2 in)	129 years	20 of 100 (Routine)
12 May 2026	Hedrum, NO	daily snow depth	3.0 cm (1.2 in)	3.0 cm (1.2 in)	129 years	20 of 100 (Routine)
21 October 2025	Hedrum, NO	daily rain	46.5 mm (1.8 in)	2.5 mm (0.10 in)	102 years	42 of 100 (Notable)
6 June 2025	Hedrum, NO	daily rain	30.5 mm (1.2 in)	11.4 mm (0.4 in)	76 years	47 of 100 (Notable)
6 January 2025	Hedrum, NO	daily rain	27.9 mm (1.1 in)	3.9 mm (0.15 in)	10 years	17 of 100 (Routine)
13 July 2024	Hedrum, NO	daily rain	27.4 mm (1.1 in)	3.2 mm (0.13 in)	66 years	32 of 100 (Routine)
15 March 2024	Hedrum, NO	daily rain	18.4 mm (0.7 in)	0.1 mm (0.00 in)	53 years	20 of 100 (Routine)
29 February 2024	Hedrum, NO	daily rain	25.8 mm (1.0 in)	4.3 mm (0.17 in)	116 years	46 of 100 (Notable)
26 January 2024	Hedrum, NO	daily rain	16.3 mm (0.6 in)	1.3 mm (0.05 in)	96 years	20 of 100 (Routine)
2 November 2023	Hedrum, NO	daily rain	45.8 mm (1.8 in)	13.8 mm (0.5 in)	9 years	26 of 100 (Routine)
21 September 2023	Hedrum, NO	daily rain	40.7 mm (1.6 in)	1.2 mm (0.05 in)	24 years	18 of 100 (Routine)
18 September 2023	Hedrum, NO	daily rain	54.3 mm (2.1 in)	15.3 mm (0.6 in)	57 years	41 of 100 (Notable)
4 January 2023	Hedrum, NO	daily rain	28.5 mm (1.1 in)	4.8 mm (0.19 in)	53 years	32 of 100 (Routine)
25 December 2022	Hedrum, NO	daily rain	35.0 mm (1.4 in)	6.0 mm (0.24 in)	120 years	47 of 100 (Notable)
6 November 2022	Hedrum, NO	daily rain	32.8 mm (1.3 in)	3.5 mm (0.14 in)	72 years	34 of 100 (Routine)
26 September 2022	Hedrum, NO	daily rain	69.6 mm (2.7 in)	25.6 mm (1.0 in)	23 years	39 of 100 (Notable)
12 September 2022	Hedrum, NO	daily rain	30.5 mm (1.2 in)	1.0 mm (0.04 in)	41 years	22 of 100 (Routine)
14 February 2022	Hedrum, NO	daily rain	35.5 mm (1.4 in)	17.5 mm (0.7 in)	108 years	67 of 100 (Major)
27 September 2021	Hedrum, NO	daily rain	64.5 mm (2.5 in)	19.0 mm (0.7 in)	24 years	34 of 100 (Routine)

Extremes by Year

1895 to 2026

Yearly extremes at Hedrum: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	111.0 mm (4.4 in)	1905	47.0 mm (1.8 in)	132
Wettest five days (Rx5day)	185.5 mm (7.3 in)	1905	98.4 mm (3.9 in)	132
Longest dry spell (CDD)	49 days	1996	24 days	132

Wettest day (Rx1day)

The wettest day of the year at Hedrum, 1895 to 2026. The record is 111.0 mm (4.4 in) in 1905, marked on the chart; the median year is 47.0 mm (1.8 in).

Wettest day (Rx1day) at Hedrum by year
Year	Wettest day (Rx1day)
1895	57.0 mm (2.2 in)
1896	43.0 mm (1.7 in)
1897	52.0 mm (2.0 in)
1898	43.5 mm (1.7 in)
1899	37.0 mm (1.5 in)
1900	60.0 mm (2.4 in)
1901	44.0 mm (1.7 in)
1902	61.0 mm (2.4 in)
1903	56.5 mm (2.2 in)
1904	45.0 mm (1.8 in)
1905	111.0 mm (4.4 in)
1906	67.5 mm (2.7 in)
1907	60.0 mm (2.4 in)
1908	70.0 mm (2.8 in)
1909	59.0 mm (2.3 in)
1910	44.0 mm (1.7 in)
1911	45.0 mm (1.8 in)
1912	40.5 mm (1.6 in)
1913	34.0 mm (1.3 in)
1914	43.5 mm (1.7 in)
1915	36.5 mm (1.4 in)
1916	34.0 mm (1.3 in)
1917	45.0 mm (1.8 in)
1918	45.0 mm (1.8 in)
1919	43.5 mm (1.7 in)
1920	30.0 mm (1.2 in)
1921	32.0 mm (1.3 in)
1922	42.0 mm (1.7 in)
1923	49.5 mm (1.9 in)
1924	43.0 mm (1.7 in)
1925	36.0 mm (1.4 in)
1926	36.0 mm (1.4 in)
1927	61.5 mm (2.4 in)
1928	54.0 mm (2.1 in)
1929	65.0 mm (2.6 in)
1930	75.5 mm (3.0 in)
1931	71.5 mm (2.8 in)
1932	35.5 mm (1.4 in)
1933	54.1 mm (2.1 in)
1934	76.0 mm (3.0 in)
1935	45.5 mm (1.8 in)
1936	66.0 mm (2.6 in)
1937	29.0 mm (1.1 in)
1938	47.1 mm (1.9 in)
1939	60.0 mm (2.4 in)
1940	49.0 mm (1.9 in)
1941	43.0 mm (1.7 in)
1942	58.0 mm (2.3 in)
1943	70.3 mm (2.8 in)
1944	49.2 mm (1.9 in)
1945	50.4 mm (2.0 in)
1946	56.2 mm (2.2 in)
1947	37.0 mm (1.5 in)
1948	41.1 mm (1.6 in)
1949	35.0 mm (1.4 in)
1950	92.0 mm (3.6 in)
1951	50.2 mm (2.0 in)
1952	37.0 mm (1.5 in)
1953	33.6 mm (1.3 in)
1954	38.1 mm (1.5 in)
1955	46.5 mm (1.8 in)
1956	42.1 mm (1.7 in)
1957	39.4 mm (1.6 in)
1958	51.2 mm (2.0 in)
1959	48.4 mm (1.9 in)
1960	39.0 mm (1.5 in)
1961	38.9 mm (1.5 in)
1962	38.6 mm (1.5 in)
1963	53.4 mm (2.1 in)
1964	48.0 mm (1.9 in)
1965	40.8 mm (1.6 in)
1966	58.9 mm (2.3 in)
1967	53.6 mm (2.1 in)
1968	34.4 mm (1.4 in)
1969	45.3 mm (1.8 in)
1970	63.2 mm (2.5 in)
1971	38.1 mm (1.5 in)
1972	68.4 mm (2.7 in)
1973	38.6 mm (1.5 in)
1974	40.9 mm (1.6 in)
1975	63.5 mm (2.5 in)
1976	39.5 mm (1.6 in)
1977	42.1 mm (1.7 in)
1978	40.1 mm (1.6 in)
1979	39.0 mm (1.5 in)
1980	47.0 mm (1.9 in)
1981	35.7 mm (1.4 in)
1982	34.5 mm (1.4 in)
1983	46.9 mm (1.8 in)
1984	48.6 mm (1.9 in)
1985	78.0 mm (3.1 in)
1986	40.1 mm (1.6 in)
1987	63.2 mm (2.5 in)
1988	108.5 mm (4.3 in)
1989	46.0 mm (1.8 in)
1990	48.0 mm (1.9 in)
1991	49.3 mm (1.9 in)
1992	37.4 mm (1.5 in)
1993	50.0 mm (2.0 in)
1994	62.5 mm (2.5 in)
1995	44.5 mm (1.8 in)
1996	45.5 mm (1.8 in)
1997	52.0 mm (2.0 in)
1998	33.0 mm (1.3 in)
1999	57.5 mm (2.3 in)
2000	53.0 mm (2.1 in)
2001	46.5 mm (1.8 in)
2002	53.5 mm (2.1 in)
2003	43.2 mm (1.7 in)
2004	51.5 mm (2.0 in)
2005	55.0 mm (2.2 in)
2006	46.0 mm (1.8 in)
2007	73.0 mm (2.9 in)
2008	94.0 mm (3.7 in)
2009	54.5 mm (2.1 in)
2010	68.2 mm (2.7 in)
2011	72.5 mm (2.9 in)
2012	44.5 mm (1.8 in)
2013	41.0 mm (1.6 in)
2014	55.4 mm (2.2 in)
2015	62.0 mm (2.4 in)
2016	36.0 mm (1.4 in)
2017	62.5 mm (2.5 in)
2018	70.0 mm (2.8 in)
2019	40.0 mm (1.6 in)
2020	63.0 mm (2.5 in)
2021	64.5 mm (2.5 in)
2022	69.6 mm (2.7 in)
2023	54.3 mm (2.1 in)
2024	33.7 mm (1.3 in)
2025	46.5 mm (1.8 in)
2026	40.3 mm (1.6 in)

Wettest five days (Rx5day)

The wettest five days of the year at Hedrum, 1895 to 2026. The record is 185.5 mm (7.3 in) in 1905, marked on the chart; the median year is 98.4 mm (3.9 in).

Wettest five days (Rx5day) at Hedrum by year
Year	Wettest five days (Rx5day)
1895	92.4 mm (3.6 in)
1896	100.2 mm (3.9 in)
1897	94.6 mm (3.7 in)
1898	72.9 mm (2.9 in)
1899	88.4 mm (3.5 in)
1900	116.2 mm (4.6 in)
1901	115.4 mm (4.5 in)
1902	98.2 mm (3.9 in)
1903	122.0 mm (4.8 in)
1904	88.0 mm (3.5 in)
1905	185.5 mm (7.3 in)
1906	110.0 mm (4.3 in)
1907	106.5 mm (4.2 in)
1908	121.0 mm (4.8 in)
1909	114.0 mm (4.5 in)
1910	75.0 mm (3.0 in)
1911	87.5 mm (3.4 in)
1912	88.5 mm (3.5 in)
1913	48.5 mm (1.9 in)
1914	91.0 mm (3.6 in)
1915	80.5 mm (3.2 in)
1916	111.5 mm (4.4 in)
1917	97.5 mm (3.8 in)
1918	111.5 mm (4.4 in)
1919	89.0 mm (3.5 in)
1920	62.0 mm (2.4 in)
1921	53.0 mm (2.1 in)
1922	85.0 mm (3.3 in)
1923	95.0 mm (3.7 in)
1924	117.5 mm (4.6 in)
1925	78.0 mm (3.1 in)
1926	111.0 mm (4.4 in)
1927	137.0 mm (5.4 in)
1928	98.0 mm (3.9 in)
1929	90.8 mm (3.6 in)
1930	96.7 mm (3.8 in)
1931	101.5 mm (4.0 in)
1932	110.0 mm (4.3 in)
1933	101.4 mm (4.0 in)
1934	162.3 mm (6.4 in)
1935	153.8 mm (6.1 in)
1936	103.6 mm (4.1 in)
1937	84.7 mm (3.3 in)
1938	93.4 mm (3.7 in)
1939	97.7 mm (3.8 in)
1940	120.5 mm (4.7 in)
1941	113.8 mm (4.5 in)
1942	66.1 mm (2.6 in)
1943	108.5 mm (4.3 in)
1944	106.3 mm (4.2 in)
1945	76.4 mm (3.0 in)
1946	89.6 mm (3.5 in)
1947	58.9 mm (2.3 in)
1948	117.4 mm (4.6 in)
1949	93.6 mm (3.7 in)
1950	107.8 mm (4.2 in)
1951	132.1 mm (5.2 in)
1952	78.8 mm (3.1 in)
1953	98.9 mm (3.9 in)
1954	111.7 mm (4.4 in)
1955	72.4 mm (2.9 in)
1956	79.5 mm (3.1 in)
1957	90.9 mm (3.6 in)
1958	95.0 mm (3.7 in)
1959	108.9 mm (4.3 in)
1960	89.4 mm (3.5 in)
1961	139.2 mm (5.5 in)
1962	80.8 mm (3.2 in)
1963	99.3 mm (3.9 in)
1964	117.8 mm (4.6 in)
1965	84.8 mm (3.3 in)
1966	124.1 mm (4.9 in)
1967	110.4 mm (4.3 in)
1968	72.6 mm (2.9 in)
1969	82.9 mm (3.3 in)
1970	123.0 mm (4.8 in)
1971	62.8 mm (2.5 in)
1972	86.1 mm (3.4 in)
1973	68.4 mm (2.7 in)
1974	97.4 mm (3.8 in)
1975	135.7 mm (5.3 in)
1976	140.5 mm (5.5 in)
1977	105.0 mm (4.1 in)
1978	88.0 mm (3.5 in)
1979	98.5 mm (3.9 in)
1980	101.0 mm (4.0 in)
1981	78.7 mm (3.1 in)
1982	91.7 mm (3.6 in)
1983	91.9 mm (3.6 in)
1984	74.2 mm (2.9 in)
1985	111.9 mm (4.4 in)
1986	95.3 mm (3.8 in)
1987	154.7 mm (6.1 in)
1988	160.9 mm (6.3 in)
1989	81.7 mm (3.2 in)
1990	113.5 mm (4.5 in)
1991	131.7 mm (5.2 in)
1992	75.0 mm (3.0 in)
1993	97.6 mm (3.8 in)
1994	122.5 mm (4.8 in)
1995	115.5 mm (4.5 in)
1996	81.3 mm (3.2 in)
1997	70.9 mm (2.8 in)
1998	88.7 mm (3.5 in)
1999	95.8 mm (3.8 in)
2000	153.9 mm (6.1 in)
2001	119.7 mm (4.7 in)
2002	139.6 mm (5.5 in)
2003	65.5 mm (2.6 in)
2004	115.2 mm (4.5 in)
2005	113.7 mm (4.5 in)
2006	80.7 mm (3.2 in)
2007	130.1 mm (5.1 in)
2008	141.0 mm (5.6 in)
2009	90.6 mm (3.6 in)
2010	143.0 mm (5.6 in)
2011	113.9 mm (4.5 in)
2012	84.5 mm (3.3 in)
2013	92.9 mm (3.7 in)
2014	158.8 mm (6.3 in)
2015	180.5 mm (7.1 in)
2016	64.2 mm (2.5 in)
2017	103.5 mm (4.1 in)
2018	115.3 mm (4.5 in)
2019	84.2 mm (3.3 in)
2020	125.6 mm (4.9 in)
2021	122.4 mm (4.8 in)
2022	101.4 mm (4.0 in)
2023	106.9 mm (4.2 in)
2024	78.4 mm (3.1 in)
2025	108.2 mm (4.3 in)
2026	54.9 mm (2.2 in)

Longest dry spell (CDD)

The longest dry spell of the year at Hedrum, 1895 to 2026. The record is 49 days in 1996, marked on the chart; the median year is 24 days.

Longest dry spell (CDD) at Hedrum by year
Year	Longest dry spell (CDD)
1895	13 days
1896	30 days
1897	26 days
1898	18 days
1899	22 days
1900	20 days
1901	25 days
1902	28 days
1903	17 days
1904	22 days
1905	27 days
1906	28 days
1907	17 days
1908	17 days
1909	27 days
1910	24 days
1911	29 days
1912	31 days
1913	48 days
1914	31 days
1915	23 days
1916	32 days
1917	22 days
1918	24 days
1919	27 days
1920	45 days
1921	21 days
1922	34 days
1923	30 days
1924	24 days
1925	27 days
1926	23 days
1927	28 days
1928	19 days
1929	39 days
1930	21 days
1931	30 days
1932	26 days
1933	41 days
1934	17 days
1935	42 days
1936	21 days
1937	14 days
1938	29 days
1939	27 days
1940	29 days
1941	35 days
1942	26 days
1943	44 days
1944	22 days
1945	27 days
1946	26 days
1947	48 days
1948	17 days
1949	23 days
1950	15 days
1951	35 days
1952	21 days
1953	32 days
1954	19 days
1955	31 days
1956	26 days
1957	24 days
1958	22 days
1959	31 days
1960	28 days
1961	21 days
1962	15 days
1963	39 days
1964	29 days
1965	22 days
1966	19 days
1967	14 days
1968	20 days
1969	32 days
1970	24 days
1971	16 days
1972	19 days
1973	23 days
1974	44 days
1975	38 days
1976	31 days
1977	21 days
1978	18 days
1979	21 days
1980	20 days
1981	33 days
1982	38 days
1983	21 days
1984	16 days
1985	18 days
1986	33 days
1987	22 days
1988	24 days
1989	34 days
1990	16 days
1991	39 days
1992	29 days
1993	33 days
1994	28 days
1995	32 days
1996	49 days
1997	27 days
1998	16 days
1999	16 days
2000	19 days
2001	14 days
2002	20 days
2003	22 days
2004	19 days
2005	21 days
2006	23 days
2007	29 days
2008	23 days
2009	15 days
2010	17 days
2011	28 days
2012	31 days
2013	25 days
2014	17 days
2015	15 days
2016	15 days
2017	11 days
2018	18 days
2019	40 days
2020	26 days
2021	21 days
2022	22 days
2023	25 days
2024	17 days
2025	32 days
2026	19 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

130 years, 1896 to 2025

A day with at least 47.7 mm (1.9 in) of rain is expected about once in 2 years. A day with at least 102.2 mm (4.0 in) of rain is expected about once in 100 years.

Rainfall return levels at Hedrum: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	47.7 mm (1.9 in)
5 years	60.3 mm (2.4 in)
10 years	69.4 mm (2.7 in)
25 years	81.8 mm (3.2 in)
50 years	91.7 mm (3.6 in)
100 years	102.2 mm (4.0 in)

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 130 years of values from 1896 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: 111.0 mm (4.4 in) in 1905; 108.5 mm (4.3 in) in 1988; 94.0 mm (3.7 in) in 2008.

Download the Data

Data for Hedrum standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Hedrum 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 2026-10-12. Last revised 12 October 2026 (2026-10-12).

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