Ulvoberg Weather Records (SWE00140396)

Record envelope, standing records and threshold days for Ulvoberg (SWE00140396), Sweden, with 79 years of record.

Key Facts for Ulvoberg

Ulvoberg (SWE00140396) is a weather station in Sweden at 64.76 latitude and 17.22 longitude, 520 m (1,706 ft) above sea level.
The station reports from 1948 to 2026, 79 years of record.
1,464 records set at Ulvoberg still stand.
Records are tracked for tmax, tmin, prcp, snwd: an element needs 30 years of data to be eligible.
Ulvoberg set a daily record precipitation of 14.5 mm (0.6 in) on 31 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, 64.76 latitude, 17.22 longitude.
Elevation: 520 m (1,706 ft).
Period of record: 1948 to 2026, 79 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 Ulvoberg. 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 Ulvoberg, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	7.5 C (45.5 F)	-35.0 C (-31.0 F)	n/a	n/a
Feb	6.8 C (44.2 F)	-35.1 C (-31.2 F)	n/a	n/a
Mar	10.5 C (50.9 F)	-28.0 C (-18.4 F)	n/a	n/a
Apr	15.4 C (59.7 F)	-19.6 C (-3.3 F)	n/a	n/a
May	26.0 C (78.8 F)	-13.6 C (7.5 F)	n/a	n/a
Jun	29.5 C (85.1 F)	-4.2 C (24.4 F)	n/a	n/a
Jul	29.5 C (85.1 F)	-1.2 C (29.8 F)	n/a	n/a
Aug	27.0 C (80.6 F)	-3.6 C (25.5 F)	n/a	n/a
Sep	22.5 C (72.5 F)	-10.3 C (13.5 F)	n/a	n/a
Oct	15.5 C (59.9 F)	-20.1 C (-4.2 F)	n/a	n/a
Nov	10.0 C (50.0 F)	-27.9 C (-18.2 F)	n/a	n/a
Dec	5.5 C (41.9 F)	-34.7 C (-30.5 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Ulvoberg still stand. 1966 holds the most, with 58.

Standing records at Ulvoberg by the year they were set
Year set	Standing records
1960	16
1961	42
1962	30
1963	28
1964	34
1965	24
1966	58
1967	25
1968	47
1969	42
1970	25
1971	45
1972	34
1973	45
1974	22
1975	43
1976	40
1977	36
1978	48
1979	20
1980	27
1981	55
1982	25
1983	16
1984	22
1985	30
1986	32
1987	45
1988	33
1989	32
1990	26
1991	25
1992	57
1993	34
1994	15
1995	29
1996	14
1997	31
1998	27
1999	31
2000	41
2001	27
2002	35
2003	33
2004	18

All-Time Record Progression

1 new records

1 all-time records were set at Ulvoberg between 30 June 2000 and 30 June 2000. Each dot is a new record.

Wettest Day of Each Month

Jul: 107.0 mm (4.2 in)

The wettest day on record for each calendar month at Ulvoberg. The most was 107.0 mm (4.2 in) on 24 July 1957.

Record daily precipitation for each month at Ulvoberg
Month	Record daily precipitation (mm)	Date
Jan	24.7 mm (1.0 in)	16 January 1999
Feb	14.4 mm (0.6 in)	8 February 1974
Mar	21.9 mm (0.9 in)	2 March 1997
Apr	21.1 mm (0.8 in)	18 April 1999
May	57.6 mm (2.3 in)	28 May 1982
Jun	43.5 mm (1.7 in)	30 June 1985
Jul	107.0 mm (4.2 in)	24 July 1957
Aug	55.0 mm (2.2 in)	14 August 1948
Sep	36.3 mm (1.4 in)	1 September 1967
Oct	29.6 mm (1.2 in)	24 October 2000
Nov	25.0 mm (1.0 in)	3 November 1968
Dec	24.5 mm (1.0 in)	15 December 1982

Period of Record Coverage

1960 to 2005

46 years of record at Ulvoberg, 1960 to 2005. 2 years have data for under 90 percent of days and are left out of rankings: 1960, 2005.

Days with data per year at Ulvoberg
Year	Days with data	Share of year	Complete
1960	322	88%	No
1961	365	100%	Yes
1962	365	100%	Yes
1963	337	92%	Yes
1964	366	100%	Yes
1965	365	100%	Yes
1966	365	100%	Yes
1967	365	100%	Yes
1968	366	100%	Yes
1969	365	100%	Yes
1970	365	100%	Yes
1971	365	100%	Yes
1972	365	100%	Yes
1973	365	100%	Yes
1974	365	100%	Yes
1975	365	100%	Yes
1976	366	100%	Yes
1977	364	100%	Yes
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	351	96%	Yes
2000	346	95%	Yes
2001	347	95%	Yes
2002	340	93%	Yes
2003	340	93%	Yes
2004	330	90%	Yes
2005	10	3%	No

Latest Records

Latest records at Ulvoberg
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
31 August 2026	Ulvoberg, SE	daily rain (Provisional)	14.5 mm (0.6 in)	1.8 mm (0.07 in)	24 years	16 of 100 (Routine)
10 May 2026	Ulvoberg, SE	daily rain	7.6 mm (0.30 in)	0.6 mm (0.02 in)	23 years	14 of 100 (Routine)
5 April 2026	Ulvoberg, SE	daily rain	14.3 mm (0.6 in)	6.8 mm (0.27 in)	52 years	20 of 100 (Routine)
25 March 2026	Ulvoberg, SE	daily rain	7.8 mm (0.31 in)	0.5 mm (0.02 in)	63 years	20 of 100 (Routine)
13 December 2025	Ulvoberg, SE	daily rain	10.5 mm (0.4 in)	2.9 mm (0.11 in)	24 years	20 of 100 (Routine)
10 December 2025	Ulvoberg, SE	daily rain	19.5 mm (0.8 in)	10.5 mm (0.4 in)	31 years	20 of 100 (Routine)
4 January 2005	Ulvoberg, SE	daily rain	6.5 mm (0.26 in)	0.3 mm (0.01 in)	44 years	19 of 100 (Routine)
2 January 2005	Ulvoberg, SE	daily rain	13.7 mm (0.5 in)	7.3 mm (0.29 in)	35 years	20 of 100 (Routine)
23 December 2004	Ulvoberg, SE	daily rain	11.3 mm (0.4 in)	4.6 mm (0.18 in)	13 years	20 of 100 (Routine)
18 November 2004	Ulvoberg, SE	daily low max	-12.8 C (9.0 F)	1.8 C (3.2 F)	33 years	16 of 100 (Routine)
3 November 2004	Ulvoberg, SE	daily high max	6.6 C (43.9 F)	0.6 C (1.1 F)	40 years	17 of 100 (Routine)
27 September 2004	Ulvoberg, SE	daily rain	6.4 mm (0.25 in)	1.0 mm (0.04 in)	21 years	13 of 100 (Routine)
12 September 2004	Ulvoberg, SE	daily rain	15.0 mm (0.6 in)	2.0 mm (0.08 in)	47 years	20 of 100 (Routine)
7 July 2004	Ulvoberg, SE	daily low max	11.4 C (52.5 F)	0.8 C (1.4 F)	11 years	9 of 100 (Routine)
3 July 2004	Ulvoberg, SE	daily rain	49.9 mm (2.0 in)	25.3 mm (1.0 in)	11 years	38 of 100 (Notable)
19 June 2004	Ulvoberg, SE	daily low min	-0.7 C (30.7 F)	1.0 C (1.8 F)	23 years	12 of 100 (Routine)
13 May 2004	Ulvoberg, SE	daily low min	-6.8 C (19.8 F)	2.0 C (3.6 F)	5 years	10 of 100 (Routine)
9 May 2004	Ulvoberg, SE	daily high min	5.2 C (41.4 F)	0.8 C (1.4 F)	39 years	17 of 100 (Routine)
9 May 2004	Ulvoberg, SE	daily high max	18.0 C (64.4 F)	0.6 C (1.1 F)	10 years	8 of 100 (Routine)
8 May 2004	Ulvoberg, SE	daily high min	8.4 C (47.1 F)	3.0 C (5.4 F)	11 years	15 of 100 (Routine)

Climate Trend

37 complete years, 1961 to 1998

One stripe for each of 37 complete years at Ulvoberg, 1961 to 1998. Blue stripes are years cooler than the station's own mean of 0.1 C (32.2 F); red stripes are warmer. The coolest year was 1985, at -2.0 C (28.4 F), and the warmest was 1990, at 1.7 C (35.1 F). The strongest colour marks a difference of 2.2 C (4.0 F).

Annual mean temperature at Ulvoberg as warming stripes, 1961 to 1998
Year	Annual mean temperature	Difference from the station mean
1961	1.4 C	+1.33 C
1962	-0.5 C	-0.58 C
1964	0.7 C	+0.57 C
1965	-0.4 C	-0.48 C
1966	-1.5 C	-1.60 C
1967	0.4 C	+0.25 C
1968	-0.8 C	-0.95 C
1969	-0.3 C	-0.40 C
1970	-0.2 C	-0.35 C
1971	-0.3 C	-0.39 C
1972	1.2 C	+1.05 C
1973	0.4 C	+0.29 C
1974	1.5 C	+1.37 C
1975	1.5 C	+1.34 C
1976	-0.3 C	-0.37 C
1977	-0.5 C	-0.65 C
1978	-1.1 C	-1.26 C
1979	-0.6 C	-0.74 C
1980	-0.6 C	-0.71 C
1981	-1.1 C	-1.19 C
1982	0.1 C	+0.01 C
1983	0.2 C	+0.10 C
1984	0.7 C	+0.56 C
1985	-2.0 C	-2.13 C
1986	-0.2 C	-0.28 C
1987	-0.9 C	-1.01 C
1988	0.3 C	+0.16 C
1989	1.5 C	+1.38 C
1990	1.7 C	+1.60 C
1991	0.8 C	+0.72 C
1992	0.8 C	+0.64 C
1993	0.3 C	+0.18 C
1994	-0.1 C	-0.22 C
1995	0.4 C	+0.27 C
1996	0.3 C	+0.14 C
1997	1.2 C	+1.12 C
1998	0.4 C	+0.26 C

The fitted trend in annual mean temperature here over 1961 to 1998 is 0.1 C (-0.1 to 0.4) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.3 F (-0.2 to 0.8) per decade. The slope is a straight line fitted to 37 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Ulvoberg
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.1 C (-0.1 to 0.4) per decade	0.3 F (-0.2 to 0.8) per decade	1961 to 1998	37	Not clearly different from zero
Mean daily maximum	0.04 C (-0.24 to 0.33) per decade	0.1 F (-0.4 to 0.6) per decade	1961 to 1998	37	Not clearly different from zero
Mean daily minimum	0.25 C (-0.04 to 0.54) per decade	0.4 F (-0.1 to 1.0) per decade	1961 to 1998	37	Not clearly different from zero

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

1948 to 2026

Yearly extremes at Ulvoberg: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	29.5 C (85.1 F)	1966	26.0 C (78.8 F)	46
Coldest night (TNn)	-35.1 C (-31.2 F)	1966	-27.5 C (-17.6 F)	46
Wettest day (Rx1day)	107.0 mm (4.2 in)	1957	29.6 mm (1.2 in)	56
Wettest five days (Rx5day)	217.2 mm (8.6 in)	1957	53.4 mm (2.1 in)	56
Longest dry spell (CDD)	32 days	1974	19 days	56

Hottest day (TXx)

The hottest day of the year at Ulvoberg, 1948 to 2026. The record is 29.5 C (85.1 F) in 1966, marked on the chart; the median year is 26.0 C (78.8 F).

Hottest day (TXx) at Ulvoberg by year
Year	Hottest day (TXx)
1948	n/a
1949	n/a
1950	n/a
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	n/a
1960	26.0 C (78.8 F)
1961	25.8 C (78.4 F)
1962	20.0 C (68.0 F)
1963	26.0 C (78.8 F)
1964	23.8 C (74.8 F)
1965	23.2 C (73.8 F)
1966	29.5 C (85.1 F)
1967	23.5 C (74.3 F)
1968	29.5 C (85.1 F)
1969	28.5 C (83.3 F)
1970	26.2 C (79.2 F)
1971	26.0 C (78.8 F)
1972	27.0 C (80.6 F)
1973	27.5 C (81.5 F)
1974	27.0 C (80.6 F)
1975	26.2 C (79.2 F)
1976	25.6 C (78.1 F)
1977	26.2 C (79.2 F)
1978	25.6 C (78.1 F)
1979	25.4 C (77.7 F)
1980	27.1 C (80.8 F)
1981	26.1 C (79.0 F)
1982	26.3 C (79.3 F)
1983	26.4 C (79.5 F)
1984	24.2 C (75.6 F)
1985	24.2 C (75.6 F)
1986	27.8 C (82.0 F)
1987	23.0 C (73.4 F)
1988	27.3 C (81.1 F)
1989	25.4 C (77.7 F)
1990	23.0 C (73.4 F)
1991	28.0 C (82.4 F)
1992	25.0 C (77.0 F)
1993	24.6 C (76.3 F)
1994	26.6 C (79.9 F)
1995	26.8 C (80.2 F)
1996	23.5 C (74.3 F)
1997	27.0 C (80.6 F)
1998	22.2 C (72.0 F)
1999	26.0 C (78.8 F)
2000	24.6 C (76.3 F)
2001	25.2 C (77.4 F)
2002	26.1 C (79.0 F)
2003	28.8 C (83.8 F)
2004	24.5 C (76.1 F)
2005	-0.2 C (31.6 F)
2025	n/a
2026	n/a

Coldest night (TNn)

The coldest night of the year at Ulvoberg, 1948 to 2026. The record is -35.1 C (-31.2 F) in 1966, marked on the chart; the median year is -27.5 C (-17.6 F).

Coldest night (TNn) at Ulvoberg by year
Year	Coldest night (TNn)
1948	n/a
1949	n/a
1950	n/a
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	n/a
1960	-25.0 C (-13.0 F)
1961	-25.1 C (-13.2 F)
1962	-27.5 C (-17.5 F)
1963	-26.0 C (-14.8 F)
1964	-30.0 C (-22.0 F)
1965	-27.0 C (-16.6 F)
1966	-35.1 C (-31.2 F)
1967	-30.7 C (-23.3 F)
1968	-28.2 C (-18.8 F)
1969	-30.5 C (-22.9 F)
1970	-29.1 C (-20.4 F)
1971	-28.0 C (-18.4 F)
1972	-25.0 C (-13.0 F)
1973	-28.0 C (-18.4 F)
1974	-22.6 C (-8.7 F)
1975	-26.5 C (-15.7 F)
1976	-30.1 C (-22.2 F)
1977	-26.6 C (-15.9 F)
1978	-34.7 C (-30.5 F)
1979	-33.2 C (-27.8 F)
1980	-32.3 C (-26.1 F)
1981	-29.2 C (-20.6 F)
1982	-27.4 C (-17.3 F)
1983	-27.6 C (-17.7 F)
1984	-29.0 C (-20.2 F)
1985	-31.6 C (-24.9 F)
1986	-32.2 C (-26.0 F)
1987	-33.8 C (-28.8 F)
1988	-23.0 C (-9.4 F)
1989	-29.8 C (-21.6 F)
1990	-24.8 C (-12.6 F)
1991	-27.2 C (-17.0 F)
1992	-19.7 C (-3.5 F)
1993	-26.4 C (-15.5 F)
1994	-29.5 C (-21.1 F)
1995	-25.0 C (-13.0 F)
1996	-27.5 C (-17.5 F)
1997	-23.8 C (-10.8 F)
1998	-24.2 C (-11.6 F)
1999	-35.0 C (-31.0 F)
2000	-23.9 C (-11.0 F)
2001	-29.3 C (-20.7 F)
2002	-28.2 C (-18.8 F)
2003	-27.5 C (-17.5 F)
2004	-24.6 C (-12.3 F)
2005	-12.7 C (9.1 F)
2025	n/a
2026	n/a

Wettest day (Rx1day)

The wettest day of the year at Ulvoberg, 1948 to 2026. The record is 107.0 mm (4.2 in) in 1957, marked on the chart; the median year is 29.6 mm (1.2 in).

Wettest day (Rx1day) at Ulvoberg by year
Year	Wettest day (Rx1day)
1948	55.0 mm (2.2 in)
1949	28.0 mm (1.1 in)
1950	4.0 mm (0.16 in)
1955	13.0 mm (0.5 in)
1956	18.5 mm (0.7 in)
1957	107.0 mm (4.2 in)
1958	16.0 mm (0.6 in)
1959	33.0 mm (1.3 in)
1960	31.1 mm (1.2 in)
1961	36.0 mm (1.4 in)
1962	24.4 mm (1.0 in)
1963	29.8 mm (1.2 in)
1964	36.0 mm (1.4 in)
1965	14.5 mm (0.6 in)
1966	29.6 mm (1.2 in)
1967	36.3 mm (1.4 in)
1968	25.0 mm (1.0 in)
1969	26.6 mm (1.0 in)
1970	38.5 mm (1.5 in)
1971	29.5 mm (1.2 in)
1972	28.0 mm (1.1 in)
1973	37.0 mm (1.5 in)
1974	20.1 mm (0.8 in)
1975	26.0 mm (1.0 in)
1976	40.2 mm (1.6 in)
1977	19.6 mm (0.8 in)
1978	17.9 mm (0.7 in)
1979	23.6 mm (0.9 in)
1980	21.2 mm (0.8 in)
1981	37.4 mm (1.5 in)
1982	57.6 mm (2.3 in)
1983	17.2 mm (0.7 in)
1984	16.7 mm (0.7 in)
1985	43.5 mm (1.7 in)
1986	24.8 mm (1.0 in)
1987	36.1 mm (1.4 in)
1988	64.3 mm (2.5 in)
1989	31.9 mm (1.3 in)
1990	17.2 mm (0.7 in)
1991	17.0 mm (0.7 in)
1992	28.9 mm (1.1 in)
1993	36.0 mm (1.4 in)
1994	15.5 mm (0.6 in)
1995	33.6 mm (1.3 in)
1996	31.2 mm (1.2 in)
1997	34.5 mm (1.4 in)
1998	38.3 mm (1.5 in)
1999	30.3 mm (1.2 in)
2000	48.0 mm (1.9 in)
2001	36.5 mm (1.4 in)
2002	19.1 mm (0.8 in)
2003	70.9 mm (2.8 in)
2004	49.9 mm (2.0 in)
2005	13.7 mm (0.5 in)
2025	19.5 mm (0.8 in)
2026	14.5 mm (0.6 in)

Wettest five days (Rx5day)

The wettest five days of the year at Ulvoberg, 1948 to 2026. The record is 217.2 mm (8.6 in) in 1957, marked on the chart; the median year is 53.4 mm (2.1 in).

Wettest five days (Rx5day) at Ulvoberg by year
Year	Wettest five days (Rx5day)
1948	92.3 mm (3.6 in)
1949	59.0 mm (2.3 in)
1950	14.0 mm (0.6 in)
1955	23.4 mm (0.9 in)
1956	35.7 mm (1.4 in)
1957	217.2 mm (8.6 in)
1958	40.8 mm (1.6 in)
1959	53.4 mm (2.1 in)
1960	55.6 mm (2.2 in)
1961	104.1 mm (4.1 in)
1962	41.4 mm (1.6 in)
1963	43.5 mm (1.7 in)
1964	91.9 mm (3.6 in)
1965	34.0 mm (1.3 in)
1966	84.7 mm (3.3 in)
1967	53.9 mm (2.1 in)
1968	37.5 mm (1.5 in)
1969	40.5 mm (1.6 in)
1970	78.2 mm (3.1 in)
1971	42.4 mm (1.7 in)
1972	86.3 mm (3.4 in)
1973	53.3 mm (2.1 in)
1974	46.5 mm (1.8 in)
1975	54.6 mm (2.1 in)
1976	78.2 mm (3.1 in)
1977	52.3 mm (2.1 in)
1978	58.5 mm (2.3 in)
1979	59.5 mm (2.3 in)
1980	32.6 mm (1.3 in)
1981	62.4 mm (2.5 in)
1982	67.7 mm (2.7 in)
1983	45.8 mm (1.8 in)
1984	41.7 mm (1.6 in)
1985	51.6 mm (2.0 in)
1986	28.3 mm (1.1 in)
1987	78.9 mm (3.1 in)
1988	66.8 mm (2.6 in)
1989	49.9 mm (2.0 in)
1990	45.9 mm (1.8 in)
1991	41.1 mm (1.6 in)
1992	60.9 mm (2.4 in)
1993	81.3 mm (3.2 in)
1994	40.4 mm (1.6 in)
1995	56.8 mm (2.2 in)
1996	54.9 mm (2.2 in)
1997	48.8 mm (1.9 in)
1998	83.8 mm (3.3 in)
1999	42.7 mm (1.7 in)
2000	74.5 mm (2.9 in)
2001	53.4 mm (2.1 in)
2002	34.0 mm (1.3 in)
2003	87.3 mm (3.4 in)
2004	88.6 mm (3.5 in)
2005	24.4 mm (1.0 in)
2025	42.2 mm (1.7 in)
2026	28.1 mm (1.1 in)

Longest dry spell (CDD)

The longest dry spell of the year at Ulvoberg, 1948 to 2026. The record is 32 days in 1974, marked on the chart; the median year is 19 days.

Longest dry spell (CDD) at Ulvoberg by year
Year	Longest dry spell (CDD)
1948	8 days
1949	31 days
1950	21 days
1955	5 days
1956	30 days
1957	21 days
1958	19 days
1959	21 days
1960	24 days
1961	20 days
1962	17 days
1963	21 days
1964	23 days
1965	24 days
1966	14 days
1967	19 days
1968	19 days
1969	21 days
1970	14 days
1971	15 days
1972	30 days
1973	14 days
1974	32 days
1975	16 days
1976	25 days
1977	18 days
1978	20 days
1979	13 days
1980	22 days
1981	18 days
1982	19 days
1983	21 days
1984	14 days
1985	17 days
1986	23 days
1987	22 days
1988	18 days
1989	14 days
1990	17 days
1991	20 days
1992	27 days
1993	25 days
1994	14 days
1995	16 days
1996	32 days
1997	18 days
1998	13 days
1999	18 days
2000	20 days
2001	16 days
2002	24 days
2003	25 days
2004	16 days
2005	3 days
2025	11 days
2026	20 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

37 years with a frost

Across 37 years with a frost, the median last spring frost at Ulvoberg falls on 12 June and the median first autumn frost on 14 August, which leaves a median of 64 days between them.

Fitted over all years, the growing season changes by +6.0 days per decade at this station.

Frost dates and growing season at Ulvoberg
Measure	Median, all years	Earliest period	Recent period (1969 to 1998)	Recent against earliest	Fitted trend
Last spring frost	12 June	n/a	9 June	n/a	-0.9 days per decade
First autumn frost	14 August	n/a	17 August	n/a	+5.0 days per decade
Growing days	64 days	n/a	67 days	n/a	+6.0 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

49 years, 1956 to 2004

A day with at least 28.9 mm (1.1 in) of rain is expected about once in 2 years. A day with at least 91.6 mm (3.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Ulvoberg: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	28.9 mm (1.1 in)
5 years	41.7 mm (1.6 in)
10 years	51.6 mm (2.0 in)
25 years	65.9 mm (2.6 in)
50 years	78.1 mm (3.1 in)	Longer than the 49 years of record
100 years	91.6 mm (3.6 in)	Longer than the 49 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, 49 years of values from 1956 to 2004.

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: 107.0 mm (4.2 in) in 1957; 70.9 mm (2.8 in) in 2003; 64.3 mm (2.5 in) in 1988.

Download the Data

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