Overkalix-Svartbyn Weather Records (SWE00140694)

Record envelope, standing records and threshold days for Overkalix-Svartbyn (SWE00140694), Sweden, with 34 years of record.

Key Facts for Overkalix-Svartbyn

Overkalix-Svartbyn (SWE00140694) is a weather station in Sweden at 66.34 latitude and 22.80 longitude, 61 m (200 ft) above sea level.
The station reports from 1962 to 1995, 34 years of record.
1,464 records set at Overkalix-Svartbyn still stand.
Records are tracked for tmax, tmin, prcp, snwd: an element needs 30 years of data to be eligible.
Overkalix-Svartbyn set a daily record low minimum temperature of -24.6 C (-12.3 F) on 18 November 1995.

About the Station

Location: Sweden, 66.34 latitude, 22.80 longitude.
Elevation: 61 m (200 ft).
Period of record: 1962 to 1995, 34 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 Overkalix-Svartbyn. 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 Overkalix-Svartbyn, 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)	-39.7 C (-39.5 F)	n/a	n/a
Feb	9.5 C (49.1 F)	-40.3 C (-40.5 F)	n/a	n/a
Mar	10.7 C (51.3 F)	-37.9 C (-36.2 F)	n/a	n/a
Apr	15.5 C (59.9 F)	-23.6 C (-10.5 F)	n/a	n/a
May	30.6 C (87.1 F)	-9.7 C (14.5 F)	n/a	n/a
Jun	33.8 C (92.8 F)	-5.2 C (22.6 F)	n/a	n/a
Jul	32.6 C (90.7 F)	1.3 C (34.3 F)	n/a	n/a
Aug	29.0 C (84.2 F)	-2.2 C (28.0 F)	n/a	n/a
Sep	22.8 C (73.0 F)	-12.3 C (9.9 F)	n/a	n/a
Oct	16.0 C (60.8 F)	-23.3 C (-9.9 F)	n/a	n/a
Nov	12.5 C (54.5 F)	-34.4 C (-29.9 F)	n/a	n/a
Dec	8.2 C (46.8 F)	-38.7 C (-37.7 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Overkalix-Svartbyn still stand. 1992 holds the most, with 75.

Standing records at Overkalix-Svartbyn by the year they were set
Year set	Standing records
1962	20
1963	59
1964	45
1965	36
1966	73
1967	43
1968	60
1969	22
1970	33
1971	54
1972	49
1973	60
1974	26
1975	65
1976	53
1977	44
1978	66
1979	39
1980	48
1981	58
1982	26
1983	47
1984	30
1985	41
1986	33
1987	37
1988	23
1989	47
1990	43
1991	36
1992	75
1993	25
1994	17
1995	31

All-Time Record Progression

1 new records

1 all-time records were set at Overkalix-Svartbyn between 26 August 1995 and 26 August 1995. Each dot is a new record.

Wettest Day of Each Month

Aug: 51.9 mm (2.0 in)

The wettest day on record for each calendar month at Overkalix-Svartbyn. The most was 51.9 mm (2.0 in) on 26 August 1995.

Record daily precipitation for each month at Overkalix-Svartbyn
Month	Record daily precipitation (mm)	Date
Jan	15.8 mm (0.6 in)	14 January 1989
Feb	32.0 mm (1.3 in)	12 February 1973
Mar	22.6 mm (0.9 in)	23 March 1986
Apr	17.9 mm (0.7 in)	17 April 1976
May	29.4 mm (1.2 in)	28 May 1982
Jun	25.7 mm (1.0 in)	26 June 1981
Jul	44.1 mm (1.7 in)	12 July 1990
Aug	51.9 mm (2.0 in)	26 August 1995
Sep	35.7 mm (1.4 in)	9 September 1983
Oct	25.8 mm (1.0 in)	16 October 1987
Nov	31.3 mm (1.2 in)	4 November 1968
Dec	18.1 mm (0.7 in)	21 December 1984

Period of Record Coverage

1962 to 1995

34 years of record at Overkalix-Svartbyn, 1962 to 1995. 7 years have data for under 90 percent of days and are left out of rankings: 1962, 1974, 1984, 1986, 1987, 1988, 1995.

Days with data per year at Overkalix-Svartbyn
Year	Days with data	Share of year	Complete
1962	153	42%	No
1963	365	100%	Yes
1964	366	100%	Yes
1965	334	92%	Yes
1966	334	92%	Yes
1967	334	92%	Yes
1968	335	92%	Yes
1969	334	92%	Yes
1970	365	100%	Yes
1971	334	92%	Yes
1972	366	100%	Yes
1973	365	100%	Yes
1974	304	83%	No
1975	365	100%	Yes
1976	366	100%	Yes
1977	365	100%	Yes
1978	365	100%	Yes
1979	365	100%	Yes
1980	366	100%	Yes
1981	365	100%	Yes
1982	335	92%	Yes
1983	334	92%	Yes
1984	305	83%	No
1985	335	92%	Yes
1986	291	80%	No
1987	293	80%	No
1988	153	42%	No
1989	365	100%	Yes
1990	365	100%	Yes
1991	365	100%	Yes
1992	366	100%	Yes
1993	365	100%	Yes
1994	350	96%	Yes
1995	326	89%	No

Latest Records

Latest records at Overkalix-Svartbyn
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 November 1995	Overkalix-Svartbyn, SE	daily low min	-24.6 C (-12.3 F)	2.6 C (4.7 F)	14 years	10 of 100 (Routine)
27 October 1995	Overkalix-Svartbyn, SE	daily high max	6.3 C (43.3 F)	0.7 C (1.3 F)	29 years	12 of 100 (Routine)
27 October 1995	Overkalix-Svartbyn, SE	daily high min	3.1 C (37.6 F)	0.8 C (1.4 F)	8 years	6 of 100 (Routine)
27 October 1995	Overkalix-Svartbyn, SE	daily rain	11.4 mm (0.4 in)	1.0 mm (0.04 in)	0 years	5 of 100 (Routine)
11 October 1995	Overkalix-Svartbyn, SE	daily high max	11.6 C (52.9 F)	1.0 C (1.8 F)	24 years	12 of 100 (Routine)
10 October 1995	Overkalix-Svartbyn, SE	daily high min	7.7 C (45.9 F)	1.2 C (2.2 F)	14 years	9 of 100 (Routine)
9 October 1995	Overkalix-Svartbyn, SE	monthly high max (Tie)	16.0 C (60.8 F)	tie	31 years	5 of 100 (Routine)
6 October 1995	Overkalix-Svartbyn, SE	daily high min (Tie)	7.5 C (45.5 F)	tie	10 years	1 of 100 (Routine)
25 September 1995	Overkalix-Svartbyn, SE	daily rain	7.6 mm (0.30 in)	1.2 mm (0.05 in)	20 years	11 of 100 (Routine)
3 September 1995	Overkalix-Svartbyn, SE	daily high max	20.5 C (68.9 F)	0.5 C (0.9 F)	29 years	12 of 100 (Routine)
26 August 1995	Overkalix-Svartbyn, SE	all-time rain	51.9 mm (2.0 in)	7.8 mm (0.31 in)	5 years	37 of 100 (Notable)
23 August 1995	Overkalix-Svartbyn, SE	daily high max	20.5 C (68.9 F)	0.1 C (0.2 F)	4 years	4 of 100 (Routine)
3 August 1995	Overkalix-Svartbyn, SE	daily rain	20.9 mm (0.8 in)	16.3 mm (0.6 in)	16 years	20 of 100 (Routine)
2 August 1995	Overkalix-Svartbyn, SE	daily high max	28.5 C (83.3 F)	0.5 C (0.9 F)	14 years	8 of 100 (Routine)
24 July 1995	Overkalix-Svartbyn, SE	daily low max (Tie)	17.6 C (63.7 F)	tie	16 years	1 of 100 (Routine)
21 July 1995	Overkalix-Svartbyn, SE	daily rain	25.2 mm (1.0 in)	14.8 mm (0.6 in)	9 years	30 of 100 (Routine)
14 July 1995	Overkalix-Svartbyn, SE	daily low max	12.8 C (55.0 F)	0.4 C (0.7 F)	4 years	5 of 100 (Routine)
13 July 1995	Overkalix-Svartbyn, SE	daily low min	5.5 C (41.9 F)	0.7 C (1.3 F)	29 years	13 of 100 (Routine)
5 July 1995	Overkalix-Svartbyn, SE	daily rain	27.0 mm (1.1 in)	17.6 mm (0.7 in)	13 years	37 of 100 (Notable)
5 July 1995	Overkalix-Svartbyn, SE	daily low max	14.0 C (57.2 F)	0.3 C (0.5 F)	10 years	6 of 100 (Routine)

Climate Trend

17 complete years, 1963 to 1993

One stripe for each of 17 complete years at Overkalix-Svartbyn, 1963 to 1993. Blue stripes are years cooler than the station's own mean of 0.5 C (32.9 F); red stripes are warmer. The coolest year was 1981, at -1.3 C (29.6 F), and the warmest was 1989, at 2.4 C (36.3 F). The strongest colour marks a difference of 2.0 C (3.6 F).

Annual mean temperature at Overkalix-Svartbyn as warming stripes, 1963 to 1993
Year	Annual mean temperature	Difference from the station mean
1963	0.4 C	-0.06 C
1964	0.9 C	+0.42 C
1970	0.0 C	-0.49 C
1972	1.6 C	+1.06 C
1973	0.4 C	-0.12 C
1975	1.5 C	+0.98 C
1976	-0.7 C	-1.22 C
1977	-0.4 C	-0.95 C
1978	-1.3 C	-1.80 C
1979	0.0 C	-0.50 C
1980	-1.0 C	-1.55 C
1981	-1.3 C	-1.84 C
1989	2.4 C	+1.91 C
1990	2.1 C	+1.59 C
1991	1.0 C	+0.52 C
1992	1.9 C	+1.35 C
1993	1.2 C	+0.68 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

1962 to 1995

Yearly extremes at Overkalix-Svartbyn: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	33.8 C (92.8 F)	1966	27.2 C (81.0 F)	34
Coldest night (TNn)	-40.3 C (-40.5 F)	1966	-35.5 C (-32.0 F)	34
Wettest day (Rx1day)	51.9 mm (2.0 in)	1995	25.1 mm (1.0 in)	34
Wettest five days (Rx5day)	65.9 mm (2.6 in)	1990	48.3 mm (1.9 in)	34
Longest dry spell (CDD)	37 days	1964	23 days	34

Hottest day (TXx)

The hottest day of the year at Overkalix-Svartbyn, 1962 to 1995. The record is 33.8 C (92.8 F) in 1966, marked on the chart; the median year is 27.2 C (81.0 F).

Hottest day (TXx) at Overkalix-Svartbyn by year
Year	Hottest day (TXx)
1962	18.5 C (65.3 F)
1963	30.0 C (86.0 F)
1964	26.6 C (79.9 F)
1965	25.5 C (77.9 F)
1966	33.8 C (92.8 F)
1967	27.6 C (81.7 F)
1968	30.6 C (87.1 F)
1969	30.0 C (86.0 F)
1970	32.6 C (90.7 F)
1971	30.6 C (87.1 F)
1972	30.8 C (87.4 F)
1973	28.0 C (82.4 F)
1974	29.0 C (84.2 F)
1975	26.0 C (78.8 F)
1976	27.6 C (81.7 F)
1977	27.0 C (80.6 F)
1978	27.0 C (80.6 F)
1979	27.0 C (80.6 F)
1980	30.0 C (86.0 F)
1981	27.2 C (81.0 F)
1982	26.8 C (80.2 F)
1983	25.0 C (77.0 F)
1984	25.2 C (77.4 F)
1985	26.0 C (78.8 F)
1986	29.7 C (85.5 F)
1987	27.0 C (80.6 F)
1988	21.9 C (71.4 F)
1989	27.9 C (82.2 F)
1990	26.0 C (78.8 F)
1991	26.6 C (79.9 F)
1992	28.7 C (83.7 F)
1993	26.2 C (79.2 F)
1994	27.2 C (81.0 F)
1995	28.5 C (83.3 F)

Coldest night (TNn)

The coldest night of the year at Overkalix-Svartbyn, 1962 to 1995. The record is -40.3 C (-40.5 F) in 1966, marked on the chart; the median year is -35.5 C (-32.0 F).

Coldest night (TNn) at Overkalix-Svartbyn by year
Year	Coldest night (TNn)
1962	-37.1 C (-34.8 F)
1963	-37.7 C (-35.9 F)
1964	-32.2 C (-26.0 F)
1965	-34.1 C (-29.4 F)
1966	-40.3 C (-40.5 F)
1967	-39.7 C (-39.5 F)
1968	-35.7 C (-32.3 F)
1969	-36.8 C (-34.2 F)
1970	-35.3 C (-31.5 F)
1971	-37.9 C (-36.2 F)
1972	-34.2 C (-29.6 F)
1973	-35.4 C (-31.7 F)
1974	-31.5 C (-24.7 F)
1975	-32.7 C (-26.9 F)
1976	-38.5 C (-37.3 F)
1977	-39.7 C (-39.5 F)
1978	-37.5 C (-35.5 F)
1979	-37.3 C (-35.1 F)
1980	-38.0 C (-36.4 F)
1981	-38.7 C (-37.7 F)
1982	-36.0 C (-32.8 F)
1983	-33.5 C (-28.3 F)
1984	-34.5 C (-30.1 F)
1985	-38.4 C (-37.1 F)
1986	-36.0 C (-32.8 F)
1987	-39.2 C (-38.6 F)
1988	-34.0 C (-29.2 F)
1989	-31.0 C (-23.8 F)
1990	-29.6 C (-21.3 F)
1991	-34.8 C (-30.6 F)
1992	-25.8 C (-14.4 F)
1993	-32.0 C (-25.6 F)
1994	-32.6 C (-26.7 F)
1995	-32.1 C (-25.8 F)

Wettest day (Rx1day)

The wettest day of the year at Overkalix-Svartbyn, 1962 to 1995. The record is 51.9 mm (2.0 in) in 1995, marked on the chart; the median year is 25.1 mm (1.0 in).

Wettest day (Rx1day) at Overkalix-Svartbyn by year
Year	Wettest day (Rx1day)
1962	20.8 mm (0.8 in)
1963	22.9 mm (0.9 in)
1964	23.8 mm (0.9 in)
1965	27.2 mm (1.1 in)
1966	18.2 mm (0.7 in)
1967	18.6 mm (0.7 in)
1968	31.3 mm (1.2 in)
1969	19.8 mm (0.8 in)
1970	30.6 mm (1.2 in)
1971	21.8 mm (0.9 in)
1972	21.1 mm (0.8 in)
1973	32.0 mm (1.3 in)
1974	13.9 mm (0.5 in)
1975	27.0 mm (1.1 in)
1976	19.5 mm (0.8 in)
1977	28.0 mm (1.1 in)
1978	31.7 mm (1.2 in)
1979	20.4 mm (0.8 in)
1980	19.9 mm (0.8 in)
1981	25.7 mm (1.0 in)
1982	29.4 mm (1.2 in)
1983	35.7 mm (1.4 in)
1984	18.1 mm (0.7 in)
1985	31.5 mm (1.2 in)
1986	30.1 mm (1.2 in)
1987	35.2 mm (1.4 in)
1988	22.4 mm (0.9 in)
1989	19.1 mm (0.8 in)
1990	44.1 mm (1.7 in)
1991	42.3 mm (1.7 in)
1992	32.0 mm (1.3 in)
1993	24.5 mm (1.0 in)
1994	20.1 mm (0.8 in)
1995	51.9 mm (2.0 in)

Wettest five days (Rx5day)

The wettest five days of the year at Overkalix-Svartbyn, 1962 to 1995. The record is 65.9 mm (2.6 in) in 1990, marked on the chart; the median year is 48.3 mm (1.9 in).

Wettest five days (Rx5day) at Overkalix-Svartbyn by year
Year	Wettest five days (Rx5day)
1962	37.0 mm (1.5 in)
1963	55.2 mm (2.2 in)
1964	31.5 mm (1.2 in)
1965	43.4 mm (1.7 in)
1966	50.2 mm (2.0 in)
1967	49.5 mm (1.9 in)
1968	41.2 mm (1.6 in)
1969	64.2 mm (2.5 in)
1970	62.5 mm (2.5 in)
1971	33.2 mm (1.3 in)
1972	41.6 mm (1.6 in)
1973	57.5 mm (2.3 in)
1974	34.3 mm (1.4 in)
1975	41.3 mm (1.6 in)
1976	41.5 mm (1.6 in)
1977	59.4 mm (2.3 in)
1978	65.2 mm (2.6 in)
1979	36.2 mm (1.4 in)
1980	35.0 mm (1.4 in)
1981	41.2 mm (1.6 in)
1982	51.3 mm (2.0 in)
1983	49.8 mm (2.0 in)
1984	42.6 mm (1.7 in)
1985	53.3 mm (2.1 in)
1986	51.0 mm (2.0 in)
1987	45.2 mm (1.8 in)
1988	39.4 mm (1.6 in)
1989	52.3 mm (2.1 in)
1990	65.9 mm (2.6 in)
1991	47.0 mm (1.9 in)
1992	55.3 mm (2.2 in)
1993	51.3 mm (2.0 in)
1994	34.5 mm (1.4 in)
1995	61.5 mm (2.4 in)

Longest dry spell (CDD)

The longest dry spell of the year at Overkalix-Svartbyn, 1962 to 1995. The record is 37 days in 1964, marked on the chart; the median year is 23 days.

Longest dry spell (CDD) at Overkalix-Svartbyn by year
Year	Longest dry spell (CDD)
1962	19 days
1963	26 days
1964	37 days
1965	22 days
1966	23 days
1967	24 days
1968	23 days
1969	27 days
1970	24 days
1971	26 days
1972	18 days
1973	20 days
1974	35 days
1975	22 days
1976	27 days
1977	15 days
1978	27 days
1979	13 days
1980	23 days
1981	22 days
1982	13 days
1983	26 days
1984	19 days
1985	25 days
1986	21 days
1987	23 days
1988	9 days
1989	20 days
1990	25 days
1991	23 days
1992	20 days
1993	25 days
1994	23 days
1995	17 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.

Download the Data

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