Rorsbo Weather Records (SWE00137812)

Record envelope, standing records and threshold days for Rorsbo (SWE00137812), Sweden, with 78 years of record.

Key Facts for Rorsbo

Rorsbo (SWE00137812) is a weather station in Sweden at 56.60 latitude and 15.51 longitude, 130 m (427 ft) above sea level.
The station reports from 1949 to 2026, 78 years of record.
1,464 records set at Rorsbo still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Rorsbo set a daily record precipitation of 13.8 mm (0.5 in) on 14 March 2026.

About the Station

Location: Sweden, 56.60 latitude, 15.51 longitude.
Elevation: 130 m (427 ft).
Period of record: 1949 to 2026, 78 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 Rorsbo. 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 Rorsbo, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	9.5 C (49.1 F)	-27.0 C (-16.6 F)	n/a	n/a
Feb	14.2 C (57.6 F)	-29.0 C (-20.2 F)	n/a	n/a
Mar	17.7 C (63.9 F)	-24.2 C (-11.6 F)	n/a	n/a
Apr	23.6 C (74.5 F)	-14.6 C (5.7 F)	n/a	n/a
May	28.5 C (83.3 F)	-7.2 C (19.0 F)	n/a	n/a
Jun	31.0 C (87.8 F)	-4.0 C (24.8 F)	n/a	n/a
Jul	30.5 C (86.9 F)	-2.6 C (27.3 F)	n/a	n/a
Aug	34.0 C (93.2 F)	-1.0 C (30.2 F)	n/a	n/a
Sep	28.5 C (83.3 F)	-7.4 C (18.7 F)	n/a	n/a
Oct	21.5 C (70.7 F)	-10.0 C (14.0 F)	n/a	n/a
Nov	12.8 C (55.0 F)	-23.4 C (-10.1 F)	n/a	n/a
Dec	12.0 C (53.6 F)	-24.6 C (-12.3 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Rorsbo still stand. 1971 holds the most, with 87.

Standing records at Rorsbo by the year they were set
Year set	Standing records
1951	51
1952	80
1953	76
1954	35
1955	84
1956	64
1957	65
1958	52
1959	80
1960	39
1961	65
1962	47
1963	57
1964	56
1965	73
1966	58
1967	24
1969	32
1970	38
1971	87
1972	54
1973	68
1974	49
1975	87
1976	42
1977	1

All-Time Record Progression

3 new records

3 all-time records were set at Rorsbo between 29 June 1984 and 24 July 2010. Each dot is a new record.

When Rorsbo set new all-time records
Date	Kind	Detail
1984-06-29	Record daily precipitation	Record daily precipitation 49.3 mm (1.9 in)
1994-08-18	Record daily precipitation	Record daily precipitation 58.5 mm (2.3 in)
2010-07-24	Record daily precipitation	Record daily precipitation 112.5 mm (4.4 in)

Wettest Day of Each Month

Jul: 112.5 mm (4.4 in)

The wettest day on record for each calendar month at Rorsbo. The most was 112.5 mm (4.4 in) on 24 July 2010.

Record daily precipitation for each month at Rorsbo
Month	Record daily precipitation (mm)	Date
Jan	31.6 mm (1.2 in)	4 January 2023
Feb	22.1 mm (0.9 in)	7 February 2007
Mar	28.5 mm (1.1 in)	27 March 1966
Apr	23.2 mm (0.9 in)	7 April 1967
May	35.2 mm (1.4 in)	14 May 2016
Jun	49.3 mm (1.9 in)	29 June 1984
Jul	112.5 mm (4.4 in)	24 July 2010
Aug	58.5 mm (2.3 in)	18 August 1994
Sep	57.7 mm (2.3 in)	28 September 2022
Oct	37.2 mm (1.5 in)	17 October 2004
Nov	36.2 mm (1.4 in)	5 November 2016
Dec	27.9 mm (1.1 in)	4 December 1959

Period of Record Coverage

1951 to 1977

26 years of record at Rorsbo, 1951 to 1977. 3 years have data for under 90 percent of days and are left out of rankings: 1967, 1969, 1977.

Days with data per year at Rorsbo
Year	Days with data	Share of year	Complete
1951	365	100%	Yes
1952	366	100%	Yes
1953	365	100%	Yes
1954	365	100%	Yes
1955	365	100%	Yes
1956	366	100%	Yes
1957	365	100%	Yes
1958	365	100%	Yes
1959	365	100%	Yes
1960	366	100%	Yes
1961	365	100%	Yes
1962	365	100%	Yes
1963	365	100%	Yes
1964	366	100%	Yes
1965	365	100%	Yes
1966	365	100%	Yes
1967	243	67%	No
1969	122	33%	No
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	31	8%	No

Latest Records

Latest records at Rorsbo
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
14 March 2026	Rorsbo, SE	daily rain	13.8 mm (0.5 in)	6.2 mm (0.24 in)	48 years	20 of 100 (Routine)
20 November 2025	Rorsbo, SE	daily rain	15.2 mm (0.6 in)	1.7 mm (0.07 in)	44 years	20 of 100 (Routine)
2 September 2025	Rorsbo, SE	daily rain	14.4 mm (0.6 in)	3.7 mm (0.15 in)	74 years	20 of 100 (Routine)
16 July 2025	Rorsbo, SE	daily rain	67.7 mm (2.7 in)	40.3 mm (1.6 in)	44 years	60 of 100 (Major)
6 January 2025	Rorsbo, SE	daily rain	11.5 mm (0.5 in)	0.9 mm (0.04 in)	37 years	20 of 100 (Routine)
1 January 2025	Rorsbo, SE	daily rain	15.5 mm (0.6 in)	3.4 mm (0.13 in)	59 years	20 of 100 (Routine)
8 October 2024	Rorsbo, SE	daily rain	24.8 mm (1.0 in)	5.1 mm (0.20 in)	36 years	20 of 100 (Routine)
26 September 2024	Rorsbo, SE	daily rain	27.2 mm (1.1 in)	10.3 mm (0.4 in)	33 years	34 of 100 (Routine)
21 June 2024	Rorsbo, SE	daily rain	16.3 mm (0.6 in)	1.7 mm (0.07 in)	14 years	14 of 100 (Routine)
1 April 2024	Rorsbo, SE	daily rain	10.4 mm (0.4 in)	1.5 mm (0.06 in)	30 years	20 of 100 (Routine)
31 December 2023	Rorsbo, SE	daily rain	9.7 mm (0.38 in)	1.6 mm (0.06 in)	16 years	16 of 100 (Routine)
31 October 2023	Rorsbo, SE	daily rain	27.4 mm (1.1 in)	6.6 mm (0.26 in)	28 years	28 of 100 (Routine)
27 August 2023	Rorsbo, SE	daily rain	19.5 mm (0.8 in)	1.3 mm (0.05 in)	1 year	8 of 100 (Routine)
2 August 2023	Rorsbo, SE	daily rain	14.5 mm (0.6 in)	4.2 mm (0.17 in)	16 years	18 of 100 (Routine)
26 June 2023	Rorsbo, SE	daily rain	36.3 mm (1.4 in)	13.4 mm (0.5 in)	16 years	36 of 100 (Notable)
25 June 2023	Rorsbo, SE	daily rain	20.2 mm (0.8 in)	7.9 mm (0.31 in)	41 years	20 of 100 (Routine)
7 March 2023	Rorsbo, SE	daily rain	14.5 mm (0.6 in)	4.4 mm (0.17 in)	41 years	20 of 100 (Routine)
24 February 2023	Rorsbo, SE	daily rain	8.3 mm (0.33 in)	2.0 mm (0.08 in)	17 years	17 of 100 (Routine)
14 January 2023	Rorsbo, SE	daily rain	16.4 mm (0.6 in)	0.6 mm (0.02 in)	41 years	20 of 100 (Routine)
4 January 2023	Rorsbo, SE	monthly rain	31.6 mm (1.2 in)	2.6 mm (0.10 in)	71 years	45 of 100 (Notable)

Climate Trend

23 complete years, 1951 to 1976

One stripe for each of 23 complete years at Rorsbo, 1951 to 1976. Blue stripes are years cooler than the station's own mean of 5.8 C (42.4 F); red stripes are warmer. The coolest year was 1956, at 4.4 C (40.0 F), and the warmest was 1975, at 7.6 C (45.7 F). The strongest colour marks a difference of 1.9 C (3.4 F).

Annual mean temperature at Rorsbo as warming stripes, 1951 to 1976
Year	Annual mean temperature	Difference from the station mean
1951	6.3 C	+0.58 C
1952	4.9 C	-0.84 C
1953	6.9 C	+1.11 C
1954	5.3 C	-0.49 C
1955	4.9 C	-0.90 C
1956	4.4 C	-1.32 C
1957	5.9 C	+0.14 C
1958	4.9 C	-0.82 C
1959	6.7 C	+0.90 C
1960	5.6 C	-0.13 C
1961	6.7 C	+0.90 C
1962	4.8 C	-0.98 C
1963	4.7 C	-1.03 C
1964	5.6 C	-0.18 C
1965	4.7 C	-1.11 C
1966	5.1 C	-0.66 C
1970	5.1 C	-0.64 C
1971	6.6 C	+0.84 C
1972	6.7 C	+0.97 C
1973	6.6 C	+0.81 C
1974	7.0 C	+1.22 C
1975	7.6 C	+1.84 C
1976	5.6 C	-0.18 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

1949 to 2026

Yearly extremes at Rorsbo: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	34.0 C (93.2 F)	1975	29.5 C (85.1 F)	26
Coldest night (TNn)	-29.0 C (-20.2 F)	1966	-20.9 C (-5.6 F)	26
Wettest day (Rx1day)	112.5 mm (4.4 in)	2010	29.0 mm (1.1 in)	77
Wettest five days (Rx5day)	121.5 mm (4.8 in)	2010	51.2 mm (2.0 in)	77
Longest dry spell (CDD)	51 days	1959	21 days	77

Hottest day (TXx)

The hottest day of the year at Rorsbo, 1949 to 2026. The record is 34.0 C (93.2 F) in 1975, marked on the chart; the median year is 29.5 C (85.1 F).

Hottest day (TXx) at Rorsbo by year
Year	Hottest day (TXx)
1949	n/a
1950	n/a
1951	28.0 C (82.4 F)
1952	28.0 C (82.4 F)
1953	30.6 C (87.1 F)
1954	29.7 C (85.5 F)
1955	30.5 C (86.9 F)
1956	30.1 C (86.2 F)
1957	29.0 C (84.2 F)
1958	28.0 C (82.4 F)
1959	30.3 C (86.5 F)
1960	27.0 C (80.6 F)
1961	29.6 C (85.3 F)
1962	26.4 C (79.5 F)
1963	30.0 C (86.0 F)
1964	30.0 C (86.0 F)
1965	25.6 C (78.1 F)
1966	29.0 C (84.2 F)
1967	31.0 C (87.8 F)
1968	n/a
1969	24.5 C (76.1 F)
1970	31.0 C (87.8 F)
1971	30.4 C (86.7 F)
1972	29.4 C (84.9 F)
1973	30.0 C (86.0 F)
1974	25.5 C (77.9 F)
1975	34.0 C (93.2 F)
1976	29.0 C (84.2 F)
1977	3.9 C (39.0 F)
1978	n/a
1979	n/a
1980	n/a
1981	n/a
1982	n/a
1983	n/a
1984	n/a
1985	n/a
1986	n/a
1987	n/a
1988	n/a
1989	n/a
1990	n/a
1991	n/a
1992	n/a
1993	n/a
1994	n/a
1995	n/a
1996	n/a
1998	n/a
1999	n/a
2000	n/a
2001	n/a
2002	n/a
2003	n/a
2004	n/a
2005	n/a
2006	n/a
2007	n/a
2008	n/a
2009	n/a
2010	n/a
2011	n/a
2012	n/a
2013	n/a
2014	n/a
2015	n/a
2016	n/a
2017	n/a
2018	n/a
2019	n/a
2020	n/a
2021	n/a
2022	n/a
2023	n/a
2024	n/a
2025	n/a
2026	n/a

Coldest night (TNn)

The coldest night of the year at Rorsbo, 1949 to 2026. The record is -29.0 C (-20.2 F) in 1966, marked on the chart; the median year is -20.9 C (-5.6 F).

Coldest night (TNn) at Rorsbo by year
Year	Coldest night (TNn)
1949	n/a
1950	n/a
1951	-14.4 C (6.1 F)
1952	-19.4 C (-2.9 F)
1953	-20.6 C (-5.1 F)
1954	-17.2 C (1.0 F)
1955	-24.2 C (-11.6 F)
1956	-27.0 C (-16.6 F)
1957	-17.0 C (1.4 F)
1958	-26.0 C (-14.8 F)
1959	-18.6 C (-1.5 F)
1960	-27.0 C (-16.6 F)
1961	-22.6 C (-8.7 F)
1962	-23.0 C (-9.4 F)
1963	-26.2 C (-15.2 F)
1964	-21.8 C (-7.2 F)
1965	-24.6 C (-12.3 F)
1966	-29.0 C (-20.2 F)
1967	-21.3 C (-6.3 F)
1968	n/a
1969	-20.2 C (-4.4 F)
1970	-22.8 C (-9.0 F)
1971	-18.8 C (-1.8 F)
1972	-18.3 C (-0.9 F)
1973	-14.7 C (5.5 F)
1974	-11.7 C (10.9 F)
1975	-13.0 C (8.6 F)
1976	-21.2 C (-6.2 F)
1977	-16.0 C (3.2 F)
1978	n/a
1979	n/a
1980	n/a
1981	n/a
1982	n/a
1983	n/a
1984	n/a
1985	n/a
1986	n/a
1987	n/a
1988	n/a
1989	n/a
1990	n/a
1991	n/a
1992	n/a
1993	n/a
1994	n/a
1995	n/a
1996	n/a
1998	n/a
1999	n/a
2000	n/a
2001	n/a
2002	n/a
2003	n/a
2004	n/a
2005	n/a
2006	n/a
2007	n/a
2008	n/a
2009	n/a
2010	n/a
2011	n/a
2012	n/a
2013	n/a
2014	n/a
2015	n/a
2016	n/a
2017	n/a
2018	n/a
2019	n/a
2020	n/a
2021	n/a
2022	n/a
2023	n/a
2024	n/a
2025	n/a
2026	n/a

Wettest day (Rx1day)

The wettest day of the year at Rorsbo, 1949 to 2026. The record is 112.5 mm (4.4 in) in 2010, marked on the chart; the median year is 29.0 mm (1.1 in).

Wettest day (Rx1day) at Rorsbo by year
Year	Wettest day (Rx1day)
1949	24.3 mm (1.0 in)
1950	45.5 mm (1.8 in)
1951	29.0 mm (1.1 in)
1952	28.2 mm (1.1 in)
1953	20.2 mm (0.8 in)
1954	21.2 mm (0.8 in)
1955	44.6 mm (1.8 in)
1956	30.0 mm (1.2 in)
1957	38.9 mm (1.5 in)
1958	27.7 mm (1.1 in)
1959	27.9 mm (1.1 in)
1960	24.2 mm (1.0 in)
1961	23.2 mm (0.9 in)
1962	26.2 mm (1.0 in)
1963	22.4 mm (0.9 in)
1964	19.2 mm (0.8 in)
1965	30.1 mm (1.2 in)
1966	28.5 mm (1.1 in)
1967	23.2 mm (0.9 in)
1968	21.0 mm (0.8 in)
1969	35.5 mm (1.4 in)
1970	44.2 mm (1.7 in)
1971	13.5 mm (0.5 in)
1972	26.7 mm (1.1 in)
1973	19.0 mm (0.7 in)
1974	23.0 mm (0.9 in)
1975	34.0 mm (1.3 in)
1976	26.0 mm (1.0 in)
1977	20.2 mm (0.8 in)
1978	25.5 mm (1.0 in)
1979	29.5 mm (1.2 in)
1980	27.4 mm (1.1 in)
1981	25.5 mm (1.0 in)
1982	23.2 mm (0.9 in)
1983	16.3 mm (0.6 in)
1984	49.3 mm (1.9 in)
1985	20.2 mm (0.8 in)
1986	14.6 mm (0.6 in)
1987	32.2 mm (1.3 in)
1988	33.0 mm (1.3 in)
1989	30.4 mm (1.2 in)
1990	23.1 mm (0.9 in)
1991	27.7 mm (1.1 in)
1992	29.0 mm (1.1 in)
1993	26.0 mm (1.0 in)
1994	58.5 mm (2.3 in)
1995	44.0 mm (1.7 in)
1996	31.3 mm (1.2 in)
1998	30.7 mm (1.2 in)
1999	23.8 mm (0.9 in)
2000	22.8 mm (0.9 in)
2001	49.8 mm (2.0 in)
2002	36.2 mm (1.4 in)
2003	29.1 mm (1.1 in)
2004	51.6 mm (2.0 in)
2005	26.0 mm (1.0 in)
2006	35.8 mm (1.4 in)
2007	30.5 mm (1.2 in)
2008	50.0 mm (2.0 in)
2009	50.3 mm (2.0 in)
2010	112.5 mm (4.4 in)
2011	35.1 mm (1.4 in)
2012	19.5 mm (0.8 in)
2013	24.2 mm (1.0 in)
2014	76.3 mm (3.0 in)
2015	23.0 mm (0.9 in)
2016	36.2 mm (1.4 in)
2017	30.4 mm (1.2 in)
2018	39.4 mm (1.6 in)
2019	46.6 mm (1.8 in)
2020	21.5 mm (0.8 in)
2021	48.5 mm (1.9 in)
2022	57.7 mm (2.3 in)
2023	36.3 mm (1.4 in)
2024	34.1 mm (1.3 in)
2025	67.7 mm (2.7 in)
2026	13.8 mm (0.5 in)

Wettest five days (Rx5day)

The wettest five days of the year at Rorsbo, 1949 to 2026. The record is 121.5 mm (4.8 in) in 2010, marked on the chart; the median year is 51.2 mm (2.0 in).

Wettest five days (Rx5day) at Rorsbo by year
Year	Wettest five days (Rx5day)
1949	33.7 mm (1.3 in)
1950	48.5 mm (1.9 in)
1951	61.9 mm (2.4 in)
1952	57.2 mm (2.3 in)
1953	39.6 mm (1.6 in)
1954	50.3 mm (2.0 in)
1955	54.3 mm (2.1 in)
1956	42.4 mm (1.7 in)
1957	45.8 mm (1.8 in)
1958	45.0 mm (1.8 in)
1959	54.9 mm (2.2 in)
1960	73.6 mm (2.9 in)
1961	44.7 mm (1.8 in)
1962	58.1 mm (2.3 in)
1963	45.6 mm (1.8 in)
1964	53.2 mm (2.1 in)
1965	61.5 mm (2.4 in)
1966	46.2 mm (1.8 in)
1967	58.2 mm (2.3 in)
1968	39.8 mm (1.6 in)
1969	39.5 mm (1.6 in)
1970	56.8 mm (2.2 in)
1971	32.6 mm (1.3 in)
1972	40.4 mm (1.6 in)
1973	33.7 mm (1.3 in)
1974	42.3 mm (1.7 in)
1975	57.3 mm (2.3 in)
1976	40.7 mm (1.6 in)
1977	50.0 mm (2.0 in)
1978	38.7 mm (1.5 in)
1979	47.1 mm (1.9 in)
1980	55.1 mm (2.2 in)
1981	38.6 mm (1.5 in)
1982	37.0 mm (1.5 in)
1983	30.0 mm (1.2 in)
1984	75.8 mm (3.0 in)
1985	38.7 mm (1.5 in)
1986	38.4 mm (1.5 in)
1987	66.2 mm (2.6 in)
1988	67.2 mm (2.6 in)
1989	44.9 mm (1.8 in)
1990	45.1 mm (1.8 in)
1991	47.8 mm (1.9 in)
1992	47.6 mm (1.9 in)
1993	44.0 mm (1.7 in)
1994	83.6 mm (3.3 in)
1995	80.4 mm (3.2 in)
1996	52.5 mm (2.1 in)
1998	45.0 mm (1.8 in)
1999	47.9 mm (1.9 in)
2000	38.8 mm (1.5 in)
2001	84.8 mm (3.3 in)
2002	52.1 mm (2.1 in)
2003	59.2 mm (2.3 in)
2004	80.2 mm (3.2 in)
2005	51.2 mm (2.0 in)
2006	59.3 mm (2.3 in)
2007	82.2 mm (3.2 in)
2008	60.7 mm (2.4 in)
2009	83.1 mm (3.3 in)
2010	121.5 mm (4.8 in)
2011	53.3 mm (2.1 in)
2012	39.8 mm (1.6 in)
2013	37.3 mm (1.5 in)
2014	103.3 mm (4.1 in)
2015	36.9 mm (1.5 in)
2016	64.1 mm (2.5 in)
2017	55.8 mm (2.2 in)
2018	58.6 mm (2.3 in)
2019	58.1 mm (2.3 in)
2020	36.1 mm (1.4 in)
2021	67.7 mm (2.7 in)
2022	107.2 mm (4.2 in)
2023	61.5 mm (2.4 in)
2024	53.9 mm (2.1 in)
2025	68.9 mm (2.7 in)
2026	30.9 mm (1.2 in)

Longest dry spell (CDD)

The longest dry spell of the year at Rorsbo, 1949 to 2026. The record is 51 days in 1959, marked on the chart; the median year is 21 days.

Longest dry spell (CDD) at Rorsbo by year
Year	Longest dry spell (CDD)
1949	14 days
1950	13 days
1951	41 days
1952	19 days
1953	32 days
1954	15 days
1955	17 days
1956	16 days
1957	17 days
1958	23 days
1959	51 days
1960	26 days
1961	19 days
1962	12 days
1963	20 days
1964	32 days
1965	31 days
1966	17 days
1967	17 days
1968	21 days
1969	23 days
1970	21 days
1971	16 days
1972	21 days
1973	25 days
1974	23 days
1975	18 days
1976	19 days
1977	16 days
1978	17 days
1979	32 days
1980	20 days
1981	22 days
1982	26 days
1983	26 days
1984	26 days
1985	19 days
1986	26 days
1987	26 days
1988	15 days
1989	30 days
1990	16 days
1991	19 days
1992	49 days
1993	16 days
1994	20 days
1995	19 days
1996	20 days
1998	24 days
1999	15 days
2000	21 days
2001	19 days
2002	34 days
2003	35 days
2004	15 days
2005	45 days
2006	24 days
2007	17 days
2008	21 days
2009	24 days
2010	19 days
2011	38 days
2012	21 days
2013	18 days
2014	18 days
2015	22 days
2016	24 days
2017	16 days
2018	19 days
2019	39 days
2020	15 days
2021	23 days
2022	32 days
2023	30 days
2024	18 days
2025	38 days
2026	23 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

23 years with a frost

Across 23 years with a frost, the median last spring frost at Rorsbo falls on 28 May and the median first autumn frost on 8 September, which leaves a median of 101 days between them.

Frost dates and growing season at Rorsbo
Measure	Median, all years	Earliest period	Recent period (1951 to 1976)	Recent against earliest	Fitted trend
Last spring frost	28 May	n/a	28 May	n/a	n/a
First autumn frost	8 September	n/a	8 September	n/a	n/a
Growing days	101 days	n/a	101 days	n/a	n/a

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

73 years, 1951 to 2025

A day with at least 29.0 mm (1.1 in) of rain is expected about once in 2 years. A day with at least 94.2 mm (3.7 in) of rain is expected about once in 100 years.

Rainfall return levels at Rorsbo: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	29.0 mm (1.1 in)
5 years	40.6 mm (1.6 in)
10 years	50.2 mm (2.0 in)
25 years	65.0 mm (2.6 in)
50 years	78.4 mm (3.1 in)
100 years	94.2 mm (3.7 in)	Longer than the 73 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, 73 years of values from 1951 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: 112.5 mm (4.4 in) in 2010; 76.3 mm (3.0 in) in 2014; 67.7 mm (2.7 in) in 2025.

Download the Data

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