Ulvsjo Weather Records (SWE00139652)

Record envelope, standing records and threshold days for Ulvsjo (SWE00139652), Sweden, with 74 years of record.

Key Facts for Ulvsjo

Ulvsjo (SWE00139652) is a weather station in Sweden at 61.60 latitude and 14.18 longitude, 585 m (1,919 ft) above sea level.
The station reports from 1945 to 2018, 74 years of record.
1,464 records set at Ulvsjo still stand.
Records are tracked for tmax, tmin, prcp, snwd: an element needs 30 years of data to be eligible.
Ulvsjo set a daily record snow depth of 120.0 cm (47.2 in) on 16 February 2018.

About the Station

Location: Sweden, 61.60 latitude, 14.18 longitude.
Elevation: 585 m (1,919 ft).
Period of record: 1945 to 2018, 74 years.
Eligible elements: tmax, tmin, 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 Ulvsjo. 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 Ulvsjo, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	9.0 C (48.2 F)	-39.5 C (-39.1 F)	n/a	n/a
Feb	8.8 C (47.8 F)	-36.8 C (-34.2 F)	n/a	n/a
Mar	14.4 C (57.9 F)	-33.0 C (-27.4 F)	n/a	n/a
Apr	19.0 C (66.2 F)	-24.9 C (-12.8 F)	n/a	n/a
May	24.2 C (75.6 F)	-16.9 C (1.6 F)	n/a	n/a
Jun	28.0 C (82.4 F)	-4.5 C (23.9 F)	n/a	n/a
Jul	28.5 C (83.3 F)	-0.5 C (31.1 F)	n/a	n/a
Aug	28.5 C (83.3 F)	-3.7 C (25.3 F)	n/a	n/a
Sep	23.2 C (73.8 F)	-7.4 C (18.7 F)	n/a	n/a
Oct	18.8 C (65.8 F)	-22.1 C (-7.8 F)	n/a	n/a
Nov	11.0 C (51.8 F)	-29.2 C (-20.6 F)	n/a	n/a
Dec	9.2 C (48.6 F)	-37.9 C (-36.2 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Ulvsjo still stand. 1978 holds the most, with 59.

Standing records at Ulvsjo by the year they were set
Year set	Standing records
1978	59
1979	32
1980	27
1981	44
1982	37
1983	24
1984	32
1985	50
1986	37
1987	45
1988	27
1989	37
1990	41
1991	29
1992	44
1993	44
1994	24
1995	40
1996	34
1997	34
1998	39
1999	33
2000	38
2001	37
2002	48
2003	35
2004	29
2005	34
2006	50
2007	37
2008	29
2009	35
2010	44
2011	37
2012	47
2013	33
2014	46
2015	27
2016	28
2017	17

All-Time Record Progression

1 new records

1 all-time records were set at Ulvsjo between 6 September 1985 and 6 September 1985. Each dot is a new record.

Wettest Day of Each Month

Sep: 67.0 mm (2.6 in)

The wettest day on record for each calendar month at Ulvsjo. The most was 67.0 mm (2.6 in) on 6 September 1985.

Record daily precipitation for each month at Ulvsjo
Month	Record daily precipitation (mm)	Date
Jan	29.4 mm (1.2 in)	10 January 2015
Feb	19.8 mm (0.8 in)	6 February 1982
Mar	24.0 mm (0.9 in)	22 March 1986
Apr	30.0 mm (1.2 in)	29 April 1992
May	34.0 mm (1.3 in)	12 May 2010
Jun	56.0 mm (2.2 in)	7 June 1986
Jul	61.3 mm (2.4 in)	14 July 1999
Aug	62.5 mm (2.5 in)	11 August 1967
Sep	67.0 mm (2.6 in)	6 September 1985
Oct	42.5 mm (1.7 in)	17 October 1980
Nov	35.9 mm (1.4 in)	17 November 1949
Dec	31.5 mm (1.2 in)	17 December 1966

Period of Record Coverage

1977 to 2018

42 years of record at Ulvsjo, 1977 to 2018. 2 years have data for under 90 percent of days and are left out of rankings: 1977, 2018.

Days with data per year at Ulvsjo
Year	Days with data	Share of year	Complete
1977	31	8%	No
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
1996	366	100%	Yes
1997	365	100%	Yes
1998	365	100%	Yes
1999	365	100%	Yes
2000	366	100%	Yes
2001	365	100%	Yes
2002	365	100%	Yes
2003	365	100%	Yes
2004	366	100%	Yes
2005	359	98%	Yes
2006	365	100%	Yes
2007	349	96%	Yes
2008	366	100%	Yes
2009	365	100%	Yes
2010	365	100%	Yes
2011	365	100%	Yes
2012	366	100%	Yes
2013	365	100%	Yes
2014	365	100%	Yes
2015	365	100%	Yes
2016	357	98%	Yes
2017	365	100%	Yes
2018	21	6%	No

Latest Records

Latest records at Ulvsjo
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
16 February 2018	Ulvsjo, SE	daily snow depth	120.0 cm (47.2 in)	15.0 cm (5.9 in)	36 years	24 of 100 (Routine)
15 February 2018	Ulvsjo, SE	daily snow depth	120.0 cm (47.2 in)	12.0 cm (4.7 in)	36 years	23 of 100 (Routine)
30 January 2018	Ulvsjo, SE	monthly snow depth	110.0 cm (43.3 in)	3.0 cm (1.2 in)	36 years	28 of 100 (Routine)
23 January 2018	Ulvsjo, SE	daily rain	10.8 mm (0.4 in)	1.3 mm (0.05 in)	60 years	20 of 100 (Routine)
22 January 2018	Ulvsjo, SE	daily snow depth (Tie)	90.0 cm (35.4 in)	tie	32 years	4 of 100 (Routine)
21 January 2018	Ulvsjo, SE	daily snow depth (Tie)	90.0 cm (35.4 in)	tie	10 years	2 of 100 (Routine)
20 January 2018	Ulvsjo, SE	daily snow depth (Tie)	90.0 cm (35.4 in)	tie	10 years	2 of 100 (Routine)
17 January 2018	Ulvsjo, SE	daily snow depth (Tie)	90.0 cm (35.4 in)	tie	36 years	4 of 100 (Routine)
26 December 2017	Ulvsjo, SE	daily rain	27.1 mm (1.1 in)	18.4 mm (0.7 in)	28 years	55 of 100 (Notable)
22 November 2017	Ulvsjo, SE	daily rain	30.3 mm (1.2 in)	15.4 mm (0.6 in)	16 years	47 of 100 (Notable)
23 August 2017	Ulvsjo, SE	daily low min	-0.6 C (30.9 F)	0.5 C (0.9 F)	4 years	6 of 100 (Routine)
9 August 2017	Ulvsjo, SE	daily rain	27.6 mm (1.1 in)	5.0 mm (0.20 in)	38 years	24 of 100 (Routine)
15 July 2017	Ulvsjo, SE	daily low min	0.4 C (32.7 F)	0.1 C (0.2 F)	12 years	7 of 100 (Routine)
13 July 2017	Ulvsjo, SE	daily low max	11.4 C (52.5 F)	1.1 C (2.0 F)	27 years	14 of 100 (Routine)
28 June 2017	Ulvsjo, SE	daily low min	-0.8 C (30.6 F)	1.8 C (3.2 F)	20 years	15 of 100 (Routine)
26 June 2017	Ulvsjo, SE	daily low max (Tie)	10.5 C (50.9 F)	tie	3 years	1 of 100 (Routine)
18 June 2017	Ulvsjo, SE	daily high min	13.3 C (55.9 F)	0.6 C (1.1 F)	15 years	9 of 100 (Routine)
16 June 2017	Ulvsjo, SE	daily high min	10.9 C (51.6 F)	1.7 C (3.1 F)	11 years	11 of 100 (Routine)
27 May 2017	Ulvsjo, SE	daily high max	23.4 C (74.1 F)	0.2 C (0.4 F)	24 years	11 of 100 (Routine)
18 May 2017	Ulvsjo, SE	daily high min	8.6 C (47.5 F)	0.5 C (0.9 F)	34 years	15 of 100 (Routine)

Climate Trend

39 complete years, 1978 to 2017

One stripe for each of 39 complete years at Ulvsjo, 1978 to 2017. Blue stripes are years cooler than the station's own mean of 1.8 C (35.3 F); red stripes are warmer. The coolest year was 1985, at -0.8 C (30.5 F), and the warmest was 2014, at 3.4 C (38.1 F). The strongest colour marks a difference of 2.7 C (4.9 F).

Annual mean temperature at Ulvsjo as warming stripes, 1978 to 2017
Year	Annual mean temperature	Difference from the station mean
1978	0.1 C	-1.71 C
1979	0.2 C	-1.63 C
1980	0.5 C	-1.35 C
1981	0.1 C	-1.75 C
1982	1.7 C	-0.16 C
1983	2.0 C	+0.15 C
1984	1.6 C	-0.24 C
1985	-0.8 C	-2.66 C
1986	0.8 C	-1.06 C
1987	0.1 C	-1.72 C
1988	1.8 C	+0.00 C
1989	2.9 C	+1.12 C
1990	3.1 C	+1.24 C
1991	2.1 C	+0.27 C
1992	2.4 C	+0.57 C
1993	1.4 C	-0.42 C
1994	1.3 C	-0.50 C
1995	1.7 C	-0.10 C
1996	0.8 C	-1.03 C
1997	2.4 C	+0.55 C
1998	1.9 C	+0.10 C
1999	2.2 C	+0.38 C
2000	3.0 C	+1.17 C
2001	1.4 C	-0.42 C
2002	2.4 C	+0.58 C
2003	2.7 C	+0.86 C
2004	2.4 C	+0.59 C
2005	2.7 C	+0.87 C
2006	3.2 C	+1.36 C
2008	2.6 C	+0.75 C
2009	1.9 C	+0.09 C
2010	-0.1 C	-1.96 C
2011	3.4 C	+1.55 C
2012	1.6 C	-0.22 C
2013	2.2 C	+0.41 C
2014	3.4 C	+1.59 C
2015	3.1 C	+1.23 C
2016	2.7 C	+0.86 C
2017	2.4 C	+0.54 C

The annual mean temperature here has risen by 0.5 C (0.3 to 0.8) per decade over 1978 to 2017. In Fahrenheit: 1.0 F (0.5 to 1.4) per decade. The slope is a straight line fitted to 39 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Ulvsjo
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.5 C (0.3 to 0.8) per decade	1.0 F (0.5 to 1.4) per decade	1978 to 2017	39	Rise
Mean daily maximum	0.4 C (0.2 to 0.7) per decade	0.8 F (0.3 to 1.2) per decade	1978 to 2017	39	Rise
Mean daily minimum	0.6 C (0.4 to 0.9) per decade	1.1 F (0.6 to 1.6) per decade	1978 to 2017	39	Rise

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

1945 to 2018

Yearly extremes at Ulvsjo: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	28.5 C (83.3 F)	1982	25.7 C (78.3 F)	42
Coldest night (TNn)	-39.5 C (-39.1 F)	1987	-30.0 C (-22.0 F)	42
Wettest day (Rx1day)	67.0 mm (2.6 in)	1985	32.5 mm (1.3 in)	69
Wettest five days (Rx5day)	155.0 mm (6.1 in)	1985	66.9 mm (2.6 in)	69
Longest dry spell (CDD)	43 days	1947	20 days	69

Hottest day (TXx)

The hottest day of the year at Ulvsjo, 1945 to 2018. The record is 28.5 C (83.3 F) in 1982, marked on the chart; the median year is 25.7 C (78.3 F).

Hottest day (TXx) at Ulvsjo by year
Year	Hottest day (TXx)
1945	n/a
1946	n/a
1947	n/a
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1961	n/a
1962	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1971	n/a
1972	n/a
1977	3.2 C (37.8 F)
1978	25.5 C (77.9 F)
1979	25.3 C (77.5 F)
1980	24.7 C (76.5 F)
1981	24.3 C (75.7 F)
1982	28.5 C (83.3 F)
1983	28.1 C (82.6 F)
1984	24.2 C (75.6 F)
1985	23.1 C (73.6 F)
1986	27.5 C (81.5 F)
1987	27.0 C (80.6 F)
1988	27.5 C (81.5 F)
1989	27.2 C (81.0 F)
1990	25.0 C (77.0 F)
1991	27.0 C (80.6 F)
1992	24.5 C (76.1 F)
1993	23.6 C (74.5 F)
1994	27.0 C (80.6 F)
1995	25.7 C (78.3 F)
1996	24.6 C (76.3 F)
1997	25.7 C (78.3 F)
1998	22.5 C (72.5 F)
1999	25.8 C (78.4 F)
2000	23.0 C (73.4 F)
2001	26.3 C (79.3 F)
2002	25.7 C (78.3 F)
2003	27.0 C (80.6 F)
2004	26.2 C (79.2 F)
2005	27.5 C (81.5 F)
2006	27.9 C (82.2 F)
2007	28.0 C (82.4 F)
2008	28.5 C (83.3 F)
2009	26.3 C (79.3 F)
2010	25.9 C (78.6 F)
2011	25.0 C (77.0 F)
2012	24.2 C (75.6 F)
2013	24.5 C (76.1 F)
2014	28.1 C (82.6 F)
2015	25.6 C (78.1 F)
2016	24.3 C (75.7 F)
2017	23.4 C (74.1 F)
2018	0.0 C (32.0 F)

Coldest night (TNn)

The coldest night of the year at Ulvsjo, 1945 to 2018. The record is -39.5 C (-39.1 F) in 1987, marked on the chart; the median year is -30.0 C (-22.0 F).

Coldest night (TNn) at Ulvsjo by year
Year	Coldest night (TNn)
1945	n/a
1946	n/a
1947	n/a
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1961	n/a
1962	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1971	n/a
1972	n/a
1977	-25.5 C (-13.9 F)
1978	-37.9 C (-36.2 F)
1979	-35.8 C (-32.4 F)
1980	-33.9 C (-29.0 F)
1981	-34.3 C (-29.7 F)
1982	-33.3 C (-27.9 F)
1983	-29.8 C (-21.6 F)
1984	-32.8 C (-27.0 F)
1985	-36.8 C (-34.2 F)
1986	-32.5 C (-26.5 F)
1987	-39.5 C (-39.1 F)
1988	-28.2 C (-18.8 F)
1989	-31.0 C (-23.8 F)
1990	-26.5 C (-15.7 F)
1991	-28.0 C (-18.4 F)
1992	-20.5 C (-4.9 F)
1993	-28.2 C (-18.8 F)
1994	-29.5 C (-21.1 F)
1995	-27.0 C (-16.6 F)
1996	-34.0 C (-29.2 F)
1997	-30.0 C (-22.0 F)
1998	-31.5 C (-24.7 F)
1999	-35.5 C (-31.9 F)
2000	-25.0 C (-13.0 F)
2001	-36.0 C (-32.8 F)
2002	-30.5 C (-22.9 F)
2003	-30.0 C (-22.0 F)
2004	-32.7 C (-26.9 F)
2005	-29.9 C (-21.8 F)
2006	-29.6 C (-21.3 F)
2007	-31.6 C (-24.9 F)
2008	-26.4 C (-15.5 F)
2009	-28.8 C (-19.8 F)
2010	-32.6 C (-26.7 F)
2011	-29.1 C (-20.4 F)
2012	-32.4 C (-26.3 F)
2013	-28.7 C (-19.7 F)
2014	-25.0 C (-13.0 F)
2015	-25.6 C (-14.1 F)
2016	-29.0 C (-20.2 F)
2017	-30.2 C (-22.4 F)
2018	-26.1 C (-15.0 F)

Wettest day (Rx1day)

The wettest day of the year at Ulvsjo, 1945 to 2018. The record is 67.0 mm (2.6 in) in 1985, marked on the chart; the median year is 32.5 mm (1.3 in).

Wettest day (Rx1day) at Ulvsjo by year
Year	Wettest day (Rx1day)
1945	35.8 mm (1.4 in)
1946	32.0 mm (1.3 in)
1947	30.5 mm (1.2 in)
1948	24.5 mm (1.0 in)
1949	56.5 mm (2.2 in)
1950	57.5 mm (2.3 in)
1951	26.0 mm (1.0 in)
1952	32.5 mm (1.3 in)
1953	38.0 mm (1.5 in)
1954	33.0 mm (1.3 in)
1955	40.0 mm (1.6 in)
1956	25.0 mm (1.0 in)
1957	36.0 mm (1.4 in)
1958	27.8 mm (1.1 in)
1959	18.0 mm (0.7 in)
1960	52.0 mm (2.0 in)
1961	28.0 mm (1.1 in)
1962	23.0 mm (0.9 in)
1963	19.0 mm (0.7 in)
1964	30.5 mm (1.2 in)
1965	26.5 mm (1.0 in)
1966	38.5 mm (1.5 in)
1967	62.5 mm (2.5 in)
1968	22.2 mm (0.9 in)
1969	34.0 mm (1.3 in)
1970	29.5 mm (1.2 in)
1971	33.3 mm (1.3 in)
1972	18.1 mm (0.7 in)
1977	n/a
1978	28.5 mm (1.1 in)
1979	22.6 mm (0.9 in)
1980	42.5 mm (1.7 in)
1981	45.8 mm (1.8 in)
1982	27.8 mm (1.1 in)
1983	32.2 mm (1.3 in)
1984	38.0 mm (1.5 in)
1985	67.0 mm (2.6 in)
1986	56.0 mm (2.2 in)
1987	27.5 mm (1.1 in)
1988	28.4 mm (1.1 in)
1989	35.5 mm (1.4 in)
1990	35.6 mm (1.4 in)
1991	27.2 mm (1.1 in)
1992	32.8 mm (1.3 in)
1993	24.8 mm (1.0 in)
1994	26.3 mm (1.0 in)
1995	59.0 mm (2.3 in)
1996	32.3 mm (1.3 in)
1997	36.3 mm (1.4 in)
1998	27.8 mm (1.1 in)
1999	61.3 mm (2.4 in)
2000	37.5 mm (1.5 in)
2001	63.8 mm (2.5 in)
2002	37.1 mm (1.5 in)
2003	26.2 mm (1.0 in)
2004	20.0 mm (0.8 in)
2005	33.4 mm (1.3 in)
2006	33.4 mm (1.3 in)
2007	28.0 mm (1.1 in)
2008	28.3 mm (1.1 in)
2009	33.8 mm (1.3 in)
2010	38.4 mm (1.5 in)
2011	22.9 mm (0.9 in)
2012	38.3 mm (1.5 in)
2013	35.7 mm (1.4 in)
2014	43.4 mm (1.7 in)
2015	43.1 mm (1.7 in)
2016	21.6 mm (0.9 in)
2017	30.3 mm (1.2 in)
2018	16.8 mm (0.7 in)

Wettest five days (Rx5day)

The wettest five days of the year at Ulvsjo, 1945 to 2018. The record is 155.0 mm (6.1 in) in 1985, marked on the chart; the median year is 66.9 mm (2.6 in).

Wettest five days (Rx5day) at Ulvsjo by year
Year	Wettest five days (Rx5day)
1945	45.6 mm (1.8 in)
1946	55.5 mm (2.2 in)
1947	41.4 mm (1.6 in)
1948	56.5 mm (2.2 in)
1949	80.9 mm (3.2 in)
1950	149.7 mm (5.9 in)
1951	53.2 mm (2.1 in)
1952	53.5 mm (2.1 in)
1953	66.0 mm (2.6 in)
1954	79.2 mm (3.1 in)
1955	74.5 mm (2.9 in)
1956	56.5 mm (2.2 in)
1957	115.0 mm (4.5 in)
1958	49.8 mm (2.0 in)
1959	46.5 mm (1.8 in)
1960	120.0 mm (4.7 in)
1961	64.5 mm (2.5 in)
1962	53.0 mm (2.1 in)
1963	53.0 mm (2.1 in)
1964	74.5 mm (2.9 in)
1965	66.5 mm (2.6 in)
1966	106.5 mm (4.2 in)
1967	96.5 mm (3.8 in)
1968	48.0 mm (1.9 in)
1969	60.1 mm (2.4 in)
1970	78.6 mm (3.1 in)
1971	47.3 mm (1.9 in)
1972	34.7 mm (1.4 in)
1977	n/a
1978	53.5 mm (2.1 in)
1979	40.8 mm (1.6 in)
1980	67.4 mm (2.7 in)
1981	100.7 mm (4.0 in)
1982	50.7 mm (2.0 in)
1983	67.9 mm (2.7 in)
1984	75.8 mm (3.0 in)
1985	155.0 mm (6.1 in)
1986	96.0 mm (3.8 in)
1987	69.0 mm (2.7 in)
1988	49.1 mm (1.9 in)
1989	86.2 mm (3.4 in)
1990	60.7 mm (2.4 in)
1991	70.8 mm (2.8 in)
1992	70.3 mm (2.8 in)
1993	60.4 mm (2.4 in)
1994	60.4 mm (2.4 in)
1995	66.9 mm (2.6 in)
1996	66.6 mm (2.6 in)
1997	70.5 mm (2.8 in)
1998	71.1 mm (2.8 in)
1999	83.7 mm (3.3 in)
2000	74.8 mm (2.9 in)
2001	110.9 mm (4.4 in)
2002	75.6 mm (3.0 in)
2003	47.0 mm (1.9 in)
2004	46.3 mm (1.8 in)
2005	96.9 mm (3.8 in)
2006	66.8 mm (2.6 in)
2007	49.4 mm (1.9 in)
2008	70.4 mm (2.8 in)
2009	82.1 mm (3.2 in)
2010	88.7 mm (3.5 in)
2011	44.9 mm (1.8 in)
2012	73.8 mm (2.9 in)
2013	68.8 mm (2.7 in)
2014	77.9 mm (3.1 in)
2015	77.7 mm (3.1 in)
2016	52.9 mm (2.1 in)
2017	44.2 mm (1.7 in)
2018	35.4 mm (1.4 in)

Longest dry spell (CDD)

The longest dry spell of the year at Ulvsjo, 1945 to 2018. The record is 43 days in 1947, marked on the chart; the median year is 20 days.

Longest dry spell (CDD) at Ulvsjo by year
Year	Longest dry spell (CDD)
1945	18 days
1946	17 days
1947	43 days
1948	28 days
1949	16 days
1950	15 days
1951	28 days
1952	17 days
1953	18 days
1954	20 days
1955	21 days
1956	24 days
1957	20 days
1958	17 days
1959	28 days
1960	41 days
1961	15 days
1962	15 days
1963	21 days
1964	43 days
1965	18 days
1966	22 days
1967	13 days
1968	21 days
1969	20 days
1970	21 days
1971	16 days
1972	16 days
1977	n/a
1978	18 days
1979	12 days
1980	25 days
1981	24 days
1982	22 days
1983	23 days
1984	14 days
1985	16 days
1986	21 days
1987	21 days
1988	26 days
1989	24 days
1990	19 days
1991	21 days
1992	22 days
1993	28 days
1994	21 days
1995	20 days
1996	19 days
1997	24 days
1998	22 days
1999	14 days
2000	19 days
2001	16 days
2002	21 days
2003	27 days
2004	14 days
2005	11 days
2006	17 days
2007	30 days
2008	17 days
2009	16 days
2010	23 days
2011	20 days
2012	12 days
2013	32 days
2014	14 days
2015	20 days
2016	13 days
2017	14 days
2018	9 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

39 years with a frost

Across 39 years with a frost, the median last spring frost at Ulvsjo falls on 14 June and the median first autumn frost on 28 August, which leaves a median of 80 days between them.

Fitted over all years, the growing season changes by +3.4 days per decade at this station.

Frost dates and growing season at Ulvsjo
Measure	Median, all years	Earliest period	Recent period (1987 to 2017)	Recent against earliest	Fitted trend
Last spring frost	14 June	n/a	14 June	n/a	+0.8 days per decade
First autumn frost	28 August	n/a	1 September	n/a	+4.2 days per decade
Growing days	80 days	n/a	83 days	n/a	+3.4 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

65 years, 1945 to 2017

A day with at least 32.5 mm (1.3 in) of rain is expected about once in 2 years. A day with at least 77.9 mm (3.1 in) of rain is expected about once in 100 years.

Rainfall return levels at Ulvsjo: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	32.5 mm (1.3 in)
5 years	42.6 mm (1.7 in)
10 years	50.1 mm (2.0 in)
25 years	60.5 mm (2.4 in)
50 years	68.9 mm (2.7 in)
100 years	77.9 mm (3.1 in)	Longer than the 65 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, 65 years of values from 1945 to 2017.

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: 67.0 mm (2.6 in) in 1985; 63.8 mm (2.5 in) in 2001; 62.5 mm (2.5 in) in 1967.

Download the Data

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