Svalov Weather Records (SWE00137604)

Record envelope, standing records and threshold days for Svalov (SWE00137604), Sweden, with 58 years of record.

Key Facts for Svalov

Svalov (SWE00137604) is a weather station in Sweden at 55.93 latitude and 13.05 longitude, 70 m (230 ft) above sea level.
The station reports from 1945 to 2002, 58 years of record.
1,464 records set at Svalov still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Svalov set a daily record precipitation of 15.2 mm (0.6 in) on 27 December 2002.

About the Station

Location: Sweden, 55.93 latitude, 13.05 longitude.
Elevation: 70 m (230 ft).
Period of record: 1945 to 2002, 58 years.
Eligible elements: tmax, tmin, 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 Svalov. 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 Svalov, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	9.8 C (49.6 F)	-21.8 C (-7.2 F)	n/a	n/a
Feb	10.7 C (51.3 F)	-22.0 C (-7.6 F)	n/a	n/a
Mar	18.3 C (64.9 F)	-18.0 C (-0.4 F)	n/a	n/a
Apr	24.2 C (75.6 F)	-9.2 C (15.4 F)	n/a	n/a
May	28.0 C (82.4 F)	-2.5 C (27.5 F)	n/a	n/a
Jun	33.5 C (92.3 F)	1.4 C (34.5 F)	n/a	n/a
Jul	32.2 C (90.0 F)	4.6 C (40.3 F)	n/a	n/a
Aug	35.0 C (95.0 F)	4.0 C (39.2 F)	n/a	n/a
Sep	28.5 C (83.3 F)	-0.8 C (30.6 F)	n/a	n/a
Oct	21.7 C (71.1 F)	-6.0 C (21.2 F)	n/a	n/a
Nov	15.0 C (59.0 F)	-13.0 C (8.6 F)	n/a	n/a
Dec	11.0 C (51.8 F)	-21.0 C (-5.8 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Svalov still stand. 1989 holds the most, with 68.

Standing records at Svalov by the year they were set
Year set	Standing records
1945	24
1946	20
1947	57
1948	26
1949	34
1950	22
1951	19
1952	37
1953	39
1954	18
1955	43
1956	49
1957	34
1958	29
1959	32
1960	15
1961	26
1962	30
1963	35
1964	15
1965	38
1966	29
1967	18
1968	49
1969	31
1970	22
1971	44
1972	34
1973	43
1974	37
1975	48
1976	23
1977	26
1978	49
1979	28
1980	31
1981	32
1982	33
1983	33
1984	11
1985	32
1986	31
1987	35
1988	35
1989	68

All-Time Record Progression

5 new records

5 all-time records were set at Svalov between 7 August 1975 and 10 January 1987. Each dot is a new record.

When Svalov set new all-time records
Date	Kind	Detail
1975-08-07	Record high maximum temperature	Record high maximum temperature 34.5 C (94.1 F)
1975-08-09	Record high maximum temperature	Record high maximum temperature 34.8 C (94.6 F)
1975-08-10	Record high maximum temperature	Record high maximum temperature 35.0 C (95.0 F)
1981-12-17	Record low maximum temperature	Record low maximum temperature -12.8 C (9.0 F)
1987-01-10	Record low maximum temperature	Record low maximum temperature -18.3 C (-0.9 F)

Wettest Day of Each Month

Sep: 57.8 mm (2.3 in)

The wettest day on record for each calendar month at Svalov. The most was 57.8 mm (2.3 in) on 7 September 1965.

Record daily precipitation for each month at Svalov
Month	Record daily precipitation (mm)	Date
Jan	22.1 mm (0.9 in)	22 January 1995
Feb	20.6 mm (0.8 in)	23 February 1946
Mar	42.9 mm (1.7 in)	27 March 2000
Apr	35.9 mm (1.4 in)	10 April 1959
May	37.5 mm (1.5 in)	26 May 1967
Jun	37.9 mm (1.5 in)	11 June 1947
Jul	47.4 mm (1.9 in)	22 July 2002
Aug	47.3 mm (1.9 in)	15 August 1999
Sep	57.8 mm (2.3 in)	7 September 1965
Oct	39.7 mm (1.6 in)	9 October 1982
Nov	28.0 mm (1.1 in)	4 November 1979
Dec	25.5 mm (1.0 in)	9 December 1965

Period of Record Coverage

1945 to 1989

45 years of record at Svalov, 1945 to 1989. 2 years have data for under 90 percent of days and are left out of rankings: 1983, 1987.

Days with data per year at Svalov
Year	Days with data	Share of year	Complete
1945	365	100%	Yes
1946	365	100%	Yes
1947	365	100%	Yes
1948	366	100%	Yes
1949	365	100%	Yes
1950	365	100%	Yes
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	365	100%	Yes
1968	366	100%	Yes
1969	365	100%	Yes
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	365	100%	Yes
1978	365	100%	Yes
1979	337	92%	Yes
1980	366	100%	Yes
1981	365	100%	Yes
1982	365	100%	Yes
1983	304	83%	No
1984	366	100%	Yes
1985	365	100%	Yes
1986	334	92%	Yes
1987	243	67%	No
1988	335	92%	Yes
1989	365	100%	Yes

Latest Records

Latest records at Svalov
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
27 December 2002	Svalov, SE	daily rain	15.2 mm (0.6 in)	2.7 mm (0.11 in)	35 years	20 of 100 (Routine)
23 November 2002	Svalov, SE	daily rain	16.5 mm (0.6 in)	2.1 mm (0.08 in)	17 years	14 of 100 (Routine)
16 November 2002	Svalov, SE	daily rain	15.3 mm (0.6 in)	1.7 mm (0.07 in)	52 years	20 of 100 (Routine)
22 July 2002	Svalov, SE	monthly rain	47.4 mm (1.9 in)	1.0 mm (0.04 in)	56 years	32 of 100 (Routine)
28 June 2002	Svalov, SE	daily rain	23.3 mm (0.9 in)	1.0 mm (0.04 in)	48 years	20 of 100 (Routine)
26 February 2002	Svalov, SE	daily rain	16.7 mm (0.7 in)	3.6 mm (0.14 in)	52 years	20 of 100 (Routine)
19 February 2002	Svalov, SE	daily rain	16.2 mm (0.6 in)	2.9 mm (0.11 in)	56 years	20 of 100 (Routine)
31 January 2002	Svalov, SE	daily rain	16.2 mm (0.6 in)	0.3 mm (0.01 in)	16 years	10 of 100 (Routine)
30 January 2002	Svalov, SE	daily rain	14.3 mm (0.6 in)	3.3 mm (0.13 in)	2 years	13 of 100 (Routine)
26 January 2002	Svalov, SE	daily rain	17.3 mm (0.7 in)	6.0 mm (0.24 in)	28 years	20 of 100 (Routine)
24 January 2002	Svalov, SE	daily rain	8.6 mm (0.34 in)	0.9 mm (0.04 in)	48 years	20 of 100 (Routine)
29 October 2001	Svalov, SE	daily rain	9.9 mm (0.39 in)	0.1 mm (0.00 in)	42 years	17 of 100 (Routine)
1 October 2001	Svalov, SE	daily rain	14.0 mm (0.6 in)	1.0 mm (0.04 in)	32 years	15 of 100 (Routine)
18 September 2001	Svalov, SE	daily rain	20.4 mm (0.8 in)	3.7 mm (0.15 in)	56 years	20 of 100 (Routine)
6 August 2001	Svalov, SE	daily rain	25.6 mm (1.0 in)	15.0 mm (0.6 in)	35 years	40 of 100 (Notable)
4 August 2001	Svalov, SE	daily rain	29.0 mm (1.1 in)	16.0 mm (0.6 in)	34 years	42 of 100 (Notable)
25 April 2001	Svalov, SE	daily rain	7.4 mm (0.29 in)	0.7 mm (0.03 in)	31 years	15 of 100 (Routine)
23 April 2001	Svalov, SE	daily rain	11.4 mm (0.4 in)	1.4 mm (0.06 in)	38 years	19 of 100 (Routine)
11 February 2001	Svalov, SE	daily rain	18.2 mm (0.7 in)	1.2 mm (0.05 in)	3 years	8 of 100 (Routine)
11 October 2000	Svalov, SE	daily rain	13.3 mm (0.5 in)	0.7 mm (0.03 in)	50 years	20 of 100 (Routine)

Climate Trend

40 complete years, 1945 to 1989

One stripe for each of 40 complete years at Svalov, 1945 to 1989. Blue stripes are years cooler than the station's own mean of 7.5 C (45.6 F); red stripes are warmer. The coolest year was 1956, at 6.2 C (43.2 F), and the warmest was 1975, at 9.2 C (48.5 F). The strongest colour marks a difference of 1.7 C (3.1 F).

Annual mean temperature at Svalov as warming stripes, 1945 to 1989
Year	Annual mean temperature	Difference from the station mean
1945	8.1 C	+0.57 C
1946	7.4 C	-0.18 C
1947	7.0 C	-0.58 C
1948	8.0 C	+0.48 C
1949	8.8 C	+1.24 C
1950	7.8 C	+0.30 C
1951	7.8 C	+0.30 C
1952	6.7 C	-0.83 C
1953	8.5 C	+0.93 C
1954	7.0 C	-0.58 C
1955	6.7 C	-0.82 C
1956	6.2 C	-1.32 C
1957	7.7 C	+0.18 C
1958	6.7 C	-0.89 C
1959	8.4 C	+0.83 C
1960	7.4 C	-0.17 C
1961	8.2 C	+0.66 C
1962	6.5 C	-1.00 C
1963	6.4 C	-1.14 C
1964	7.3 C	-0.21 C
1965	6.6 C	-0.97 C
1966	6.9 C	-0.63 C
1967	8.0 C	+0.42 C
1968	7.4 C	-0.10 C
1969	7.0 C	-0.57 C
1970	6.5 C	-1.07 C
1971	7.9 C	+0.32 C
1972	7.8 C	+0.24 C
1973	8.1 C	+0.58 C
1974	8.8 C	+1.21 C
1975	9.2 C	+1.63 C
1976	7.5 C	-0.07 C
1977	8.0 C	+0.47 C
1978	7.6 C	+0.03 C
1980	7.1 C	-0.47 C
1981	7.3 C	-0.26 C
1982	8.0 C	+0.50 C
1984	8.2 C	+0.67 C
1985	6.4 C	-1.14 C
1989	8.9 C	+1.38 C

The fitted trend in annual mean temperature here over 1945 to 1989 is 0.1 C (-0.1 to 0.3) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.2 F (-0.2 to 0.5) per decade. The slope is a straight line fitted to 40 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Svalov
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.1 C (-0.1 to 0.3) per decade	0.2 F (-0.2 to 0.5) per decade	1945 to 1989	40	Not clearly different from zero
Mean daily maximum	0.01 C (-0.21 to 0.23) per decade	0.01 F (-0.39 to 0.41) per decade	1945 to 1989	40	Not clearly different from zero
Mean daily minimum	0.16 C (-0.04 to 0.37) per decade	0.3 F (-0.1 to 0.7) per decade	1945 to 1989	40	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

1945 to 2002

Yearly extremes at Svalov: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	35.0 C (95.0 F)	1975	29.0 C (84.2 F)	45
Coldest night (TNn)	-22.0 C (-7.6 F)	1958	-16.0 C (3.2 F)	45
Wettest day (Rx1day)	57.8 mm (2.3 in)	1965	28.4 mm (1.1 in)	58
Wettest five days (Rx5day)	103.0 mm (4.1 in)	1994	55.8 mm (2.2 in)	58
Longest dry spell (CDD)	49 days	1992	20 days	58

Hottest day (TXx)

The hottest day of the year at Svalov, 1945 to 2002. The record is 35.0 C (95.0 F) in 1975, marked on the chart; the median year is 29.0 C (84.2 F).

Hottest day (TXx) at Svalov by year
Year	Hottest day (TXx)
1945	30.0 C (86.0 F)
1946	30.0 C (86.0 F)
1947	33.5 C (92.3 F)
1948	33.0 C (91.4 F)
1949	26.5 C (79.7 F)
1950	29.0 C (84.2 F)
1951	27.5 C (81.5 F)
1952	26.5 C (79.7 F)
1953	30.5 C (86.9 F)
1954	30.0 C (86.0 F)
1955	29.7 C (85.5 F)
1956	26.3 C (79.3 F)
1957	28.2 C (82.8 F)
1958	29.0 C (84.2 F)
1959	30.2 C (86.4 F)
1960	28.0 C (82.4 F)
1961	28.0 C (82.4 F)
1962	24.9 C (76.8 F)
1963	28.3 C (82.9 F)
1964	29.9 C (85.8 F)
1965	25.0 C (77.0 F)
1966	28.3 C (82.9 F)
1967	26.2 C (79.2 F)
1968	29.9 C (85.8 F)
1969	31.2 C (88.2 F)
1970	28.3 C (82.9 F)
1971	29.5 C (85.1 F)
1972	29.1 C (84.4 F)
1973	30.1 C (86.2 F)
1974	26.2 C (79.2 F)
1975	35.0 C (95.0 F)
1976	28.3 C (82.9 F)
1977	28.3 C (82.9 F)
1978	29.0 C (84.2 F)
1979	30.0 C (86.0 F)
1980	27.0 C (80.6 F)
1981	28.2 C (82.8 F)
1982	31.9 C (89.4 F)
1983	31.0 C (87.8 F)
1984	28.0 C (82.4 F)
1985	27.2 C (81.0 F)
1986	29.0 C (84.2 F)
1987	26.8 C (80.2 F)
1988	28.5 C (83.3 F)
1989	32.2 C (90.0 F)
1990	n/a
1991	n/a
1992	n/a
1993	n/a
1994	n/a
1995	n/a
1996	n/a
1997	n/a
1998	n/a
1999	n/a
2000	n/a
2001	n/a
2002	n/a

Coldest night (TNn)

The coldest night of the year at Svalov, 1945 to 2002. The record is -22.0 C (-7.6 F) in 1958, marked on the chart; the median year is -16.0 C (3.2 F).

Coldest night (TNn) at Svalov by year
Year	Coldest night (TNn)
1945	-16.0 C (3.2 F)
1946	-15.0 C (5.0 F)
1947	-19.5 C (-3.1 F)
1948	-14.0 C (6.8 F)
1949	-12.5 C (9.5 F)
1950	-13.0 C (8.6 F)
1951	-9.5 C (14.9 F)
1952	-12.0 C (10.4 F)
1953	-19.0 C (-2.2 F)
1954	-14.5 C (5.9 F)
1955	-19.0 C (-2.2 F)
1956	-20.5 C (-4.9 F)
1957	-12.0 C (10.4 F)
1958	-22.0 C (-7.6 F)
1959	-13.0 C (8.6 F)
1960	-17.2 C (1.0 F)
1961	-19.6 C (-3.3 F)
1962	-15.3 C (4.5 F)
1963	-20.3 C (-4.5 F)
1964	-16.3 C (2.7 F)
1965	-17.4 C (0.7 F)
1966	-19.3 C (-2.7 F)
1967	-17.6 C (0.3 F)
1968	-17.6 C (0.3 F)
1969	-17.4 C (0.7 F)
1970	-17.5 C (0.5 F)
1971	-14.6 C (5.7 F)
1972	-13.6 C (7.5 F)
1973	-13.0 C (8.6 F)
1974	-4.0 C (24.8 F)
1975	-9.2 C (15.4 F)
1976	-19.0 C (-2.2 F)
1977	-10.4 C (13.3 F)
1978	-18.5 C (-1.3 F)
1979	-12.3 C (9.9 F)
1980	-15.3 C (4.5 F)
1981	-21.0 C (-5.8 F)
1982	-21.8 C (-7.2 F)
1983	-14.2 C (6.4 F)
1984	-9.1 C (15.6 F)
1985	-19.0 C (-2.2 F)
1986	-17.0 C (1.4 F)
1987	-21.2 C (-6.2 F)
1988	-13.3 C (8.1 F)
1989	-9.9 C (14.2 F)
1990	n/a
1991	n/a
1992	n/a
1993	n/a
1994	n/a
1995	n/a
1996	n/a
1997	n/a
1998	n/a
1999	n/a
2000	n/a
2001	n/a
2002	n/a

Wettest day (Rx1day)

The wettest day of the year at Svalov, 1945 to 2002. The record is 57.8 mm (2.3 in) in 1965, marked on the chart; the median year is 28.4 mm (1.1 in).

Wettest day (Rx1day) at Svalov by year
Year	Wettest day (Rx1day)
1945	32.8 mm (1.3 in)
1946	46.4 mm (1.8 in)
1947	39.3 mm (1.5 in)
1948	28.7 mm (1.1 in)
1949	24.6 mm (1.0 in)
1950	22.6 mm (0.9 in)
1951	24.2 mm (1.0 in)
1952	33.7 mm (1.3 in)
1953	21.5 mm (0.8 in)
1954	39.5 mm (1.6 in)
1955	20.4 mm (0.8 in)
1956	23.5 mm (0.9 in)
1957	18.3 mm (0.7 in)
1958	34.4 mm (1.4 in)
1959	36.0 mm (1.4 in)
1960	19.9 mm (0.8 in)
1961	23.3 mm (0.9 in)
1962	22.3 mm (0.9 in)
1963	31.7 mm (1.2 in)
1964	26.0 mm (1.0 in)
1965	57.8 mm (2.3 in)
1966	27.4 mm (1.1 in)
1967	40.3 mm (1.6 in)
1968	38.6 mm (1.5 in)
1969	36.0 mm (1.4 in)
1970	24.5 mm (1.0 in)
1971	20.5 mm (0.8 in)
1972	41.8 mm (1.6 in)
1973	27.8 mm (1.1 in)
1974	29.3 mm (1.2 in)
1975	31.4 mm (1.2 in)
1976	23.3 mm (0.9 in)
1977	24.3 mm (1.0 in)
1978	30.1 mm (1.2 in)
1979	28.0 mm (1.1 in)
1980	24.5 mm (1.0 in)
1981	27.7 mm (1.1 in)
1982	39.7 mm (1.6 in)
1983	25.3 mm (1.0 in)
1984	31.4 mm (1.2 in)
1985	25.2 mm (1.0 in)
1986	28.8 mm (1.1 in)
1987	22.0 mm (0.9 in)
1988	20.7 mm (0.8 in)
1989	26.3 mm (1.0 in)
1990	27.7 mm (1.1 in)
1991	32.1 mm (1.3 in)
1992	27.2 mm (1.1 in)
1993	33.3 mm (1.3 in)
1994	52.0 mm (2.0 in)
1995	24.3 mm (1.0 in)
1996	29.5 mm (1.2 in)
1997	23.0 mm (0.9 in)
1998	31.4 mm (1.2 in)
1999	47.3 mm (1.9 in)
2000	42.9 mm (1.7 in)
2001	29.0 mm (1.1 in)
2002	47.4 mm (1.9 in)

Wettest five days (Rx5day)

The wettest five days of the year at Svalov, 1945 to 2002. The record is 103.0 mm (4.1 in) in 1994, marked on the chart; the median year is 55.8 mm (2.2 in).

Wettest five days (Rx5day) at Svalov by year
Year	Wettest five days (Rx5day)
1945	78.1 mm (3.1 in)
1946	57.9 mm (2.3 in)
1947	67.6 mm (2.7 in)
1948	57.3 mm (2.3 in)
1949	53.8 mm (2.1 in)
1950	47.6 mm (1.9 in)
1951	61.5 mm (2.4 in)
1952	55.9 mm (2.2 in)
1953	37.5 mm (1.5 in)
1954	73.5 mm (2.9 in)
1955	50.7 mm (2.0 in)
1956	37.0 mm (1.5 in)
1957	52.8 mm (2.1 in)
1958	66.9 mm (2.6 in)
1959	62.5 mm (2.5 in)
1960	32.8 mm (1.3 in)
1961	43.7 mm (1.7 in)
1962	53.4 mm (2.1 in)
1963	50.2 mm (2.0 in)
1964	39.6 mm (1.6 in)
1965	75.8 mm (3.0 in)
1966	59.7 mm (2.4 in)
1967	83.6 mm (3.3 in)
1968	55.7 mm (2.2 in)
1969	58.3 mm (2.3 in)
1970	62.8 mm (2.5 in)
1971	43.3 mm (1.7 in)
1972	52.3 mm (2.1 in)
1973	52.7 mm (2.1 in)
1974	50.8 mm (2.0 in)
1975	46.2 mm (1.8 in)
1976	43.6 mm (1.7 in)
1977	47.8 mm (1.9 in)
1978	78.9 mm (3.1 in)
1979	39.7 mm (1.6 in)
1980	71.6 mm (2.8 in)
1981	64.0 mm (2.5 in)
1982	66.6 mm (2.6 in)
1983	39.7 mm (1.6 in)
1984	46.1 mm (1.8 in)
1985	50.6 mm (2.0 in)
1986	49.6 mm (2.0 in)
1987	44.0 mm (1.7 in)
1988	47.9 mm (1.9 in)
1989	61.6 mm (2.4 in)
1990	59.5 mm (2.3 in)
1991	59.2 mm (2.3 in)
1992	67.2 mm (2.6 in)
1993	50.3 mm (2.0 in)
1994	103.0 mm (4.1 in)
1995	55.7 mm (2.2 in)
1996	45.3 mm (1.8 in)
1997	66.1 mm (2.6 in)
1998	68.2 mm (2.7 in)
1999	92.9 mm (3.7 in)
2000	58.3 mm (2.3 in)
2001	73.7 mm (2.9 in)
2002	62.4 mm (2.5 in)

Longest dry spell (CDD)

The longest dry spell of the year at Svalov, 1945 to 2002. The record is 49 days in 1992, marked on the chart; the median year is 20 days.

Longest dry spell (CDD) at Svalov by year
Year	Longest dry spell (CDD)
1945	15 days
1946	25 days
1947	41 days
1948	24 days
1949	20 days
1950	17 days
1951	33 days
1952	18 days
1953	21 days
1954	17 days
1955	17 days
1956	27 days
1957	15 days
1958	21 days
1959	26 days
1960	17 days
1961	17 days
1962	12 days
1963	26 days
1964	35 days
1965	13 days
1966	14 days
1967	11 days
1968	17 days
1969	30 days
1970	16 days
1971	15 days
1972	19 days
1973	28 days
1974	34 days
1975	26 days
1976	23 days
1977	17 days
1978	26 days
1979	18 days
1980	20 days
1981	22 days
1982	19 days
1983	20 days
1984	47 days
1985	22 days
1986	25 days
1987	15 days
1988	15 days
1989	18 days
1990	15 days
1991	19 days
1992	49 days
1993	21 days
1994	32 days
1995	18 days
1996	26 days
1997	22 days
1998	13 days
1999	22 days
2000	27 days
2001	18 days
2002	27 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

40 years with a frost

Across 40 years with a frost, the median last spring frost at Svalov falls on 28 April and the median first autumn frost on 22 October, which leaves a median of 177 days between them.

Fitted over all years, the growing season changes by +4.6 days per decade at this station.

Frost dates and growing season at Svalov
Measure	Median, all years	Earliest period	Recent period (1955 to 1989)	Recent against earliest	Fitted trend
Last spring frost	28 April	n/a	27 April	n/a	-0.4 days per decade
First autumn frost	22 October	n/a	25 October	n/a	+4.1 days per decade
Growing days	177 days	n/a	182 days	n/a	+4.6 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

57 years, 1945 to 2002

A day with at least 28.6 mm (1.1 in) of rain is expected about once in 2 years. A day with at least 62.7 mm (2.5 in) of rain is expected about once in 100 years.

Rainfall return levels at Svalov: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	28.6 mm (1.1 in)
5 years	36.3 mm (1.4 in)
10 years	41.9 mm (1.6 in)
25 years	49.7 mm (2.0 in)
50 years	56.0 mm (2.2 in)
100 years	62.7 mm (2.5 in)	Longer than the 57 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, 57 years of values from 1945 to 2002.

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: 57.8 mm (2.3 in) in 1965; 52.0 mm (2.0 in) in 1994; 47.4 mm (1.9 in) in 2002.

Station Changes

2 suspected

2 changes were suspected in the annual mean temperature of Svalov, at 1958 and 1973. Each is measured against neighbouring stations.

Relative to 5 neighbouring stations, the station's annual mean temperature from 1958 ran 0.2 C (0.3 F) lower than in the years before (likely change).
Relative to 5 neighbouring stations, the station's annual mean temperature from 1973 ran 0.3 C (0.5 F) higher than in the years before (likely change).

Suspected changes in the annual mean temperature at Svalov, against neighbouring stations
Year	Shift (C)	Shift (F)	Strength	Neighbours
1958	-0.1	-0.3	likely	5
1973	+0.3	+0.5	likely	5

Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.

Download the Data

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