Herefoss Weather Records (NOE00110402)

Record envelope, standing records and threshold days for Herefoss (NOE00110402), Norway, with 121 years of record.

Key Facts for Herefoss

Herefoss (NOE00110402) is a weather station in Norway at 58.52 latitude and 8.35 longitude, 85 m (279 ft) above sea level.
The station reports from 1895 to 2015, 121 years of record.
0 records set at Herefoss still stand.
Records are tracked for prcp, snwd: an element needs 30 years of data to be eligible.
Herefoss set a monthly record daily precipitation of 92.5 mm (3.6 in) on 7 October 2014.

About the Station

Location: Norway, 58.52 latitude, 8.35 longitude.
Elevation: 85 m (279 ft).
Period of record: 1895 to 2015, 121 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 Herefoss. 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 Herefoss, 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 Herefoss still stand.

All-Time Record Progression

5 new records

5 all-time records were set at Herefoss between 11 February 1937 and 2 April 1951. Each dot is a new record.

When Herefoss set new all-time records
Date	Kind	Detail
1937-02-11	Record snow depth	Record snow depth 171.0 cm (67.3 in)
1939-08-27	Record daily precipitation	Record daily precipitation 115.5 mm (4.5 in)
1951-02-06	Record snow depth	Record snow depth 180.0 cm (70.9 in)
1951-02-07	Record snow depth	Record snow depth 193.0 cm (76.0 in)
1951-04-02	Record snow depth	Record snow depth 196.0 cm (77.2 in)

Wettest Day of Each Month

Aug: 115.5 mm (4.5 in)

The wettest day on record for each calendar month at Herefoss. The most was 115.5 mm (4.5 in) on 27 August 1939.

Record daily precipitation for each month at Herefoss
Month	Record daily precipitation (mm)	Date
Jan	70.8 mm (2.8 in)	14 January 1934
Feb	96.3 mm (3.8 in)	16 February 1971
Mar	81.3 mm (3.2 in)	4 March 1985
Apr	64.6 mm (2.5 in)	20 April 1937
May	60.0 mm (2.4 in)	21 May 1983
Jun	74.8 mm (2.9 in)	17 June 1933
Jul	98.9 mm (3.9 in)	5 July 1990
Aug	115.5 mm (4.5 in)	27 August 1939
Sep	108.2 mm (4.3 in)	1 September 1922
Oct	92.5 mm (3.6 in)	7 October 2014
Nov	108.3 mm (4.3 in)	20 November 1950
Dec	84.1 mm (3.3 in)	15 December 1934

Latest Records

Latest records at Herefoss
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
7 October 2014	Herefoss, NO	monthly rain	92.5 mm (3.6 in)	1.0 mm (0.04 in)	34 years	30 of 100 (Routine)
30 August 2014	Herefoss, NO	daily rain	51.1 mm (2.0 in)	5.9 mm (0.23 in)	76 years	37 of 100 (Notable)
14 February 2014	Herefoss, NO	daily rain	29.1 mm (1.1 in)	2.1 mm (0.08 in)	88 years	38 of 100 (Notable)
23 July 2011	Herefoss, NO	daily rain	62.7 mm (2.5 in)	28.5 mm (1.1 in)	66 years	59 of 100 (Notable)
17 July 2011	Herefoss, NO	daily rain	42.0 mm (1.7 in)	4.6 mm (0.18 in)	102 years	44 of 100 (Notable)
16 June 2011	Herefoss, NO	daily rain	40.7 mm (1.6 in)	7.1 mm (0.28 in)	104 years	49 of 100 (Notable)
6 June 2011	Herefoss, NO	daily rain	34.0 mm (1.3 in)	4.9 mm (0.19 in)	62 years	34 of 100 (Routine)
3 October 2010	Herefoss, NO	daily rain	50.0 mm (2.0 in)	0.5 mm (0.02 in)	43 years	22 of 100 (Routine)
6 December 2009	Herefoss, NO	daily rain	43.0 mm (1.7 in)	9.3 mm (0.37 in)	111 years	48 of 100 (Notable)
3 November 2009	Herefoss, NO	daily rain	62.5 mm (2.5 in)	22.7 mm (0.9 in)	32 years	38 of 100 (Notable)
9 November 2008	Herefoss, NO	daily rain	48.2 mm (1.9 in)	12.7 mm (0.5 in)	47 years	34 of 100 (Routine)
12 August 2008	Herefoss, NO	daily rain	41.0 mm (1.6 in)	3.8 mm (0.15 in)	50 years	28 of 100 (Routine)
31 January 2008	Herefoss, NO	daily rain	46.0 mm (1.8 in)	7.3 mm (0.29 in)	17 years	22 of 100 (Routine)
5 January 2008	Herefoss, NO	daily rain	65.0 mm (2.6 in)	22.0 mm (0.9 in)	49 years	48 of 100 (Notable)
29 September 2007	Herefoss, NO	daily rain	32.0 mm (1.3 in)	1.7 mm (0.07 in)	16 years	15 of 100 (Routine)
6 March 2007	Herefoss, NO	daily rain	31.8 mm (1.3 in)	8.2 mm (0.32 in)	74 years	41 of 100 (Notable)
5 March 2007	Herefoss, NO	daily rain	32.5 mm (1.3 in)	4.5 mm (0.18 in)	105 years	45 of 100 (Notable)
14 June 2005	Herefoss, NO	daily rain	23.3 mm (0.9 in)	0.4 mm (0.02 in)	68 years	20 of 100 (Routine)
20 May 2005	Herefoss, NO	daily rain	26.6 mm (1.0 in)	8.1 mm (0.32 in)	42 years	32 of 100 (Routine)
16 October 2004	Herefoss, NO	daily rain	50.1 mm (2.0 in)	3.1 mm (0.12 in)	28 years	20 of 100 (Routine)

Extremes by Year

1895 to 2015

Yearly extremes at Herefoss: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	115.5 mm (4.5 in)	1939	60.2 mm (2.4 in)	121
Wettest five days (Rx5day)	266.0 mm (10.5 in)	1976	125.3 mm (4.9 in)	121
Longest dry spell (CDD)	47 days	1932	20 days	121

Wettest day (Rx1day)

The wettest day of the year at Herefoss, 1895 to 2015. The record is 115.5 mm (4.5 in) in 1939, marked on the chart; the median year is 60.2 mm (2.4 in).

Wettest day (Rx1day) at Herefoss by year
Year	Wettest day (Rx1day)
1895	40.9 mm (1.6 in)
1896	79.5 mm (3.1 in)
1897	37.5 mm (1.5 in)
1898	53.4 mm (2.1 in)
1899	41.7 mm (1.6 in)
1900	52.5 mm (2.1 in)
1901	51.3 mm (2.0 in)
1902	47.6 mm (1.9 in)
1903	76.9 mm (3.0 in)
1904	75.9 mm (3.0 in)
1905	50.6 mm (2.0 in)
1906	67.4 mm (2.7 in)
1907	69.9 mm (2.8 in)
1908	42.1 mm (1.7 in)
1909	60.4 mm (2.4 in)
1910	63.9 mm (2.5 in)
1911	51.0 mm (2.0 in)
1912	64.4 mm (2.5 in)
1913	48.2 mm (1.9 in)
1914	75.2 mm (3.0 in)
1915	69.6 mm (2.7 in)
1916	62.2 mm (2.4 in)
1917	98.4 mm (3.9 in)
1918	66.7 mm (2.6 in)
1919	58.1 mm (2.3 in)
1920	58.9 mm (2.3 in)
1921	27.7 mm (1.1 in)
1922	108.2 mm (4.3 in)
1923	57.4 mm (2.3 in)
1924	78.4 mm (3.1 in)
1925	45.6 mm (1.8 in)
1926	88.2 mm (3.5 in)
1927	54.9 mm (2.2 in)
1928	50.9 mm (2.0 in)
1929	67.4 mm (2.7 in)
1930	85.3 mm (3.4 in)
1931	57.2 mm (2.3 in)
1932	43.4 mm (1.7 in)
1933	74.8 mm (2.9 in)
1934	84.1 mm (3.3 in)
1935	80.5 mm (3.2 in)
1936	107.2 mm (4.2 in)
1937	64.6 mm (2.5 in)
1938	58.8 mm (2.3 in)
1939	115.5 mm (4.5 in)
1940	69.7 mm (2.7 in)
1941	43.0 mm (1.7 in)
1942	50.8 mm (2.0 in)
1943	58.0 mm (2.3 in)
1944	71.2 mm (2.8 in)
1945	53.0 mm (2.1 in)
1946	49.9 mm (2.0 in)
1947	31.8 mm (1.3 in)
1948	54.0 mm (2.1 in)
1949	67.0 mm (2.6 in)
1950	108.3 mm (4.3 in)
1951	76.7 mm (3.0 in)
1952	53.8 mm (2.1 in)
1953	61.3 mm (2.4 in)
1954	63.0 mm (2.5 in)
1955	54.7 mm (2.2 in)
1956	58.0 mm (2.3 in)
1957	46.8 mm (1.8 in)
1958	60.9 mm (2.4 in)
1959	89.9 mm (3.5 in)
1960	60.2 mm (2.4 in)
1961	50.4 mm (2.0 in)
1962	46.0 mm (1.8 in)
1963	40.0 mm (1.6 in)
1964	62.4 mm (2.5 in)
1965	44.0 mm (1.7 in)
1966	101.0 mm (4.0 in)
1967	57.4 mm (2.3 in)
1968	54.0 mm (2.1 in)
1969	57.4 mm (2.3 in)
1970	91.3 mm (3.6 in)
1971	96.3 mm (3.8 in)
1972	75.4 mm (3.0 in)
1973	62.5 mm (2.5 in)
1974	66.2 mm (2.6 in)
1975	59.8 mm (2.4 in)
1976	91.3 mm (3.6 in)
1977	72.6 mm (2.9 in)
1978	43.0 mm (1.7 in)
1979	91.5 mm (3.6 in)
1980	45.9 mm (1.8 in)
1981	68.1 mm (2.7 in)
1982	81.0 mm (3.2 in)
1983	66.5 mm (2.6 in)
1984	70.1 mm (2.8 in)
1985	92.0 mm (3.6 in)
1986	57.3 mm (2.3 in)
1987	84.1 mm (3.3 in)
1988	47.9 mm (1.9 in)
1989	67.2 mm (2.6 in)
1990	98.9 mm (3.9 in)
1991	55.2 mm (2.2 in)
1992	45.5 mm (1.8 in)
1993	87.0 mm (3.4 in)
1994	70.8 mm (2.8 in)
1995	44.2 mm (1.7 in)
1996	44.2 mm (1.7 in)
1997	58.4 mm (2.3 in)
1998	61.2 mm (2.4 in)
1999	60.2 mm (2.4 in)
2000	54.5 mm (2.1 in)
2001	54.5 mm (2.1 in)
2002	57.0 mm (2.2 in)
2003	40.0 mm (1.6 in)
2004	78.3 mm (3.1 in)
2005	39.6 mm (1.6 in)
2006	52.6 mm (2.1 in)
2007	45.3 mm (1.8 in)
2008	65.0 mm (2.6 in)
2009	62.5 mm (2.5 in)
2010	50.0 mm (2.0 in)
2011	62.7 mm (2.5 in)
2012	49.8 mm (2.0 in)
2013	54.1 mm (2.1 in)
2014	92.5 mm (3.6 in)
2015	0.0 mm (0.00 in)

Wettest five days (Rx5day)

The wettest five days of the year at Herefoss, 1895 to 2015. The record is 266.0 mm (10.5 in) in 1976, marked on the chart; the median year is 125.3 mm (4.9 in).

Wettest five days (Rx5day) at Herefoss by year
Year	Wettest five days (Rx5day)
1895	100.7 mm (4.0 in)
1896	128.3 mm (5.1 in)
1897	101.5 mm (4.0 in)
1898	85.0 mm (3.3 in)
1899	102.3 mm (4.0 in)
1900	123.6 mm (4.9 in)
1901	127.7 mm (5.0 in)
1902	73.2 mm (2.9 in)
1903	153.8 mm (6.1 in)
1904	197.7 mm (7.8 in)
1905	119.1 mm (4.7 in)
1906	186.3 mm (7.3 in)
1907	179.4 mm (7.1 in)
1908	107.4 mm (4.2 in)
1909	127.4 mm (5.0 in)
1910	120.7 mm (4.8 in)
1911	121.6 mm (4.8 in)
1912	111.1 mm (4.4 in)
1913	103.0 mm (4.1 in)
1914	144.5 mm (5.7 in)
1915	159.4 mm (6.3 in)
1916	198.7 mm (7.8 in)
1917	162.8 mm (6.4 in)
1918	119.8 mm (4.7 in)
1919	119.2 mm (4.7 in)
1920	152.2 mm (6.0 in)
1921	42.1 mm (1.7 in)
1922	151.5 mm (6.0 in)
1923	114.4 mm (4.5 in)
1924	125.0 mm (4.9 in)
1925	125.3 mm (4.9 in)
1926	217.4 mm (8.6 in)
1927	136.6 mm (5.4 in)
1928	125.6 mm (4.9 in)
1929	123.2 mm (4.9 in)
1930	219.8 mm (8.7 in)
1931	109.7 mm (4.3 in)
1932	115.8 mm (4.6 in)
1933	140.6 mm (5.5 in)
1934	167.5 mm (6.6 in)
1935	178.3 mm (7.0 in)
1936	202.0 mm (8.0 in)
1937	121.8 mm (4.8 in)
1938	128.0 mm (5.0 in)
1939	178.7 mm (7.0 in)
1940	141.3 mm (5.6 in)
1941	111.9 mm (4.4 in)
1942	120.9 mm (4.8 in)
1943	109.7 mm (4.3 in)
1944	111.0 mm (4.4 in)
1945	95.8 mm (3.8 in)
1946	141.9 mm (5.6 in)
1947	57.0 mm (2.2 in)
1948	127.3 mm (5.0 in)
1949	235.2 mm (9.3 in)
1950	153.3 mm (6.0 in)
1951	144.4 mm (5.7 in)
1952	106.6 mm (4.2 in)
1953	152.5 mm (6.0 in)
1954	130.4 mm (5.1 in)
1955	110.1 mm (4.3 in)
1956	111.2 mm (4.4 in)
1957	108.2 mm (4.3 in)
1958	100.1 mm (3.9 in)
1959	228.0 mm (9.0 in)
1960	141.5 mm (5.6 in)
1961	150.0 mm (5.9 in)
1962	99.7 mm (3.9 in)
1963	71.9 mm (2.8 in)
1964	137.4 mm (5.4 in)
1965	107.8 mm (4.2 in)
1966	172.7 mm (6.8 in)
1967	176.9 mm (7.0 in)
1968	117.1 mm (4.6 in)
1969	109.3 mm (4.3 in)
1970	128.3 mm (5.1 in)
1971	157.1 mm (6.2 in)
1972	138.6 mm (5.5 in)
1973	95.1 mm (3.7 in)
1974	118.9 mm (4.7 in)
1975	143.0 mm (5.6 in)
1976	266.0 mm (10.5 in)
1977	210.8 mm (8.3 in)
1978	89.9 mm (3.5 in)
1979	231.4 mm (9.1 in)
1980	70.1 mm (2.8 in)
1981	169.3 mm (6.7 in)
1982	147.3 mm (5.8 in)
1983	114.5 mm (4.5 in)
1984	107.7 mm (4.2 in)
1985	116.6 mm (4.6 in)
1986	123.1 mm (4.8 in)
1987	170.0 mm (6.7 in)
1988	119.7 mm (4.7 in)
1989	146.6 mm (5.8 in)
1990	174.0 mm (6.9 in)
1991	106.7 mm (4.2 in)
1992	130.3 mm (5.1 in)
1993	148.3 mm (5.8 in)
1994	110.5 mm (4.4 in)
1995	158.0 mm (6.2 in)
1996	91.7 mm (3.6 in)
1997	103.2 mm (4.1 in)
1998	110.0 mm (4.3 in)
1999	128.5 mm (5.1 in)
2000	144.0 mm (5.7 in)
2001	129.8 mm (5.1 in)
2002	141.9 mm (5.6 in)
2003	85.4 mm (3.4 in)
2004	116.4 mm (4.6 in)
2005	101.9 mm (4.0 in)
2006	110.7 mm (4.4 in)
2007	87.1 mm (3.4 in)
2008	119.1 mm (4.7 in)
2009	141.9 mm (5.6 in)
2010	133.4 mm (5.3 in)
2011	123.3 mm (4.9 in)
2012	126.1 mm (5.0 in)
2013	117.4 mm (4.6 in)
2014	182.1 mm (7.2 in)
2015	3.0 mm (0.12 in)

Longest dry spell (CDD)

The longest dry spell of the year at Herefoss, 1895 to 2015. The record is 47 days in 1932, marked on the chart; the median year is 20 days.

Longest dry spell (CDD) at Herefoss by year
Year	Longest dry spell (CDD)
1895	12 days
1896	17 days
1897	19 days
1898	15 days
1899	22 days
1900	18 days
1901	25 days
1902	21 days
1903	14 days
1904	20 days
1905	17 days
1906	29 days
1907	17 days
1908	15 days
1909	21 days
1910	18 days
1911	28 days
1912	22 days
1913	16 days
1914	18 days
1915	33 days
1916	18 days
1917	23 days
1918	17 days
1919	33 days
1920	30 days
1921	37 days
1922	17 days
1923	26 days
1924	14 days
1925	31 days
1926	18 days
1927	19 days
1928	19 days
1929	32 days
1930	20 days
1931	25 days
1932	47 days
1933	39 days
1934	17 days
1935	24 days
1936	19 days
1937	17 days
1938	37 days
1939	23 days
1940	22 days
1941	20 days
1942	26 days
1943	19 days
1944	15 days
1945	23 days
1946	21 days
1947	23 days
1948	19 days
1949	19 days
1950	14 days
1951	20 days
1952	16 days
1953	32 days
1954	17 days
1955	30 days
1956	15 days
1957	17 days
1958	16 days
1959	27 days
1960	27 days
1961	17 days
1962	14 days
1963	24 days
1964	21 days
1965	18 days
1966	17 days
1967	13 days
1968	32 days
1969	32 days
1970	18 days
1971	23 days
1972	34 days
1973	23 days
1974	45 days
1975	36 days
1976	30 days
1977	17 days
1978	18 days
1979	19 days
1980	21 days
1981	33 days
1982	18 days
1983	31 days
1984	17 days
1985	21 days
1986	18 days
1987	19 days
1988	21 days
1989	31 days
1990	28 days
1991	35 days
1992	21 days
1993	27 days
1994	28 days
1995	33 days
1996	25 days
1997	26 days
1998	15 days
1999	17 days
2000	14 days
2001	18 days
2002	13 days
2003	20 days
2004	17 days
2005	15 days
2006	18 days
2007	15 days
2008	23 days
2009	20 days
2010	19 days
2011	37 days
2012	29 days
2013	24 days
2014	17 days
2015	1 day

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

119 years, 1896 to 2014

A day with at least 60.7 mm (2.4 in) of rain is expected about once in 2 years. A day with at least 120.6 mm (4.7 in) of rain is expected about once in 100 years.

Rainfall return levels at Herefoss: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	60.7 mm (2.4 in)
5 years	76.8 mm (3.0 in)
10 years	87.5 mm (3.4 in)
25 years	100.9 mm (4.0 in)
50 years	110.8 mm (4.4 in)
100 years	120.6 mm (4.7 in)

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 119 years of values from 1896 to 2014.

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: 115.5 mm (4.5 in) in 1939; 108.3 mm (4.3 in) in 1950; 108.2 mm (4.3 in) in 1922.

Download the Data

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

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