Munsvattnet Weather Records (SWE00140288)

Record envelope, standing records and threshold days for Munsvattnet (SWE00140288), Sweden, with 53 years of record.

Key Facts for Munsvattnet

Munsvattnet (SWE00140288) is a weather station in Sweden at 64.27 latitude and 14.45 longitude, 520 m (1,706 ft) above sea level.
The station reports from 1945 to 1997, 53 years of record.
1,464 records set at Munsvattnet still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Munsvattnet set a daily record precipitation of 7.2 mm (0.28 in) on 14 April 1997.

About the Station

Location: Sweden, 64.27 latitude, 14.45 longitude.
Elevation: 520 m (1,706 ft).
Period of record: 1945 to 1997, 53 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 Munsvattnet. 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 Munsvattnet, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	7.8 C (46.0 F)	-39.7 C (-39.5 F)	n/a	n/a
Feb	8.7 C (47.7 F)	-38.8 C (-37.8 F)	n/a	n/a
Mar	10.3 C (50.5 F)	-33.4 C (-28.1 F)	n/a	n/a
Apr	16.5 C (61.7 F)	-24.4 C (-11.9 F)	n/a	n/a
May	25.6 C (78.1 F)	-19.6 C (-3.3 F)	n/a	n/a
Jun	28.4 C (83.1 F)	-5.1 C (22.8 F)	n/a	n/a
Jul	28.9 C (84.0 F)	-3.6 C (25.5 F)	n/a	n/a
Aug	28.5 C (83.3 F)	-4.8 C (23.4 F)	n/a	n/a
Sep	25.5 C (77.9 F)	-10.0 C (14.0 F)	n/a	n/a
Oct	17.5 C (63.5 F)	-24.2 C (-11.6 F)	n/a	n/a
Nov	9.2 C (48.6 F)	-32.6 C (-26.7 F)	n/a	n/a
Dec	7.8 C (46.0 F)	-40.1 C (-40.2 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Munsvattnet still stand. 1992 holds the most, with 56.

Standing records at Munsvattnet by the year they were set
Year set	Standing records
1945	6
1946	9
1947	12
1948	13
1949	16
1950	4
1951	15
1952	19
1953	15
1954	11
1955	14
1956	11
1957	34
1958	52
1959	32
1960	26
1961	33
1962	19
1963	25
1964	34
1965	23
1966	43
1967	21
1968	51
1969	47
1970	27
1971	40
1972	32
1973	40
1974	25
1975	30
1976	31
1977	33
1978	40
1979	17
1980	41
1981	50
1982	34
1983	21
1984	34
1985	46
1986	31
1987	24
1988	23
1989	34
1990	34
1991	26
1992	56
1993	25
1994	23
1995	26
1996	25
1997	11

All-Time Record Progression

4 new records

4 all-time records were set at Munsvattnet between 30 December 1978 and 5 August 1987. Each dot is a new record.

When Munsvattnet set new all-time records
Date	Kind	Detail
1978-12-30	Record low minimum temperature	Record low minimum temperature -40.1 C (-40.2 F)
1987-01-08	Record low maximum temperature	Record low maximum temperature -30.6 C (-23.1 F)
1987-01-09	Record low maximum temperature	Record low maximum temperature -35.6 C (-32.1 F)
1987-08-05	Record daily precipitation	Record daily precipitation 68.4 mm (2.7 in)

Wettest Day of Each Month

Aug: 68.4 mm (2.7 in)

The wettest day on record for each calendar month at Munsvattnet. The most was 68.4 mm (2.7 in) on 5 August 1987.

Record daily precipitation for each month at Munsvattnet
Month	Record daily precipitation (mm)	Date
Jan	35.2 mm (1.4 in)	21 January 1994
Feb	16.4 mm (0.6 in)	22 February 1990
Mar	26.1 mm (1.0 in)	18 March 1995
Apr	26.4 mm (1.0 in)	29 April 1992
May	44.3 mm (1.7 in)	28 May 1982
Jun	57.2 mm (2.3 in)	2 June 1993
Jul	67.3 mm (2.6 in)	14 July 1992
Aug	68.4 mm (2.7 in)	5 August 1987
Sep	35.7 mm (1.4 in)	7 September 1985
Oct	36.4 mm (1.4 in)	7 October 1980
Nov	26.0 mm (1.0 in)	7 November 1945
Dec	45.6 mm (1.8 in)	2 December 1990

Period of Record Coverage

1957 to 1997

41 years of record at Munsvattnet, 1957 to 1997. 2 years have data for under 90 percent of days and are left out of rankings: 1957, 1997.

Days with data per year at Munsvattnet
Year	Days with data	Share of year	Complete
1957	306	84%	No
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	364	100%	Yes
1966	365	100%	Yes
1967	365	100%	Yes
1968	366	100%	Yes
1969	364	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	365	100%	Yes
1980	366	100%	Yes
1981	364	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	365	100%	Yes
1989	365	100%	Yes
1990	365	100%	Yes
1991	365	100%	Yes
1992	366	100%	Yes
1993	364	100%	Yes
1994	365	100%	Yes
1995	365	100%	Yes
1996	366	100%	Yes
1997	105	29%	No

Latest Records

Latest records at Munsvattnet
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
14 April 1997	Munsvattnet, SE	daily rain	7.2 mm (0.28 in)	3.3 mm (0.13 in)	36 years	20 of 100 (Routine)
13 April 1997	Munsvattnet, SE	daily rain	6.2 mm (0.24 in)	1.0 mm (0.04 in)	3 years	8 of 100 (Routine)
9 April 1997	Munsvattnet, SE	daily rain	5.3 mm (0.21 in)	0.4 mm (0.02 in)	40 years	18 of 100 (Routine)
1 April 1997	Munsvattnet, SE	daily rain	12.2 mm (0.5 in)	0.7 mm (0.03 in)	11 years	10 of 100 (Routine)
27 March 1997	Munsvattnet, SE	daily rain	11.9 mm (0.5 in)	5.2 mm (0.20 in)	28 years	20 of 100 (Routine)
26 March 1997	Munsvattnet, SE	daily rain	5.8 mm (0.23 in)	0.8 mm (0.03 in)	38 years	18 of 100 (Routine)
23 March 1997	Munsvattnet, SE	daily low max	-5.9 C (21.4 F)	0.3 C (0.5 F)	40 years	16 of 100 (Routine)
12 March 1997	Munsvattnet, SE	daily high min	2.3 C (36.1 F)	0.7 C (1.3 F)	24 years	12 of 100 (Routine)
11 March 1997	Munsvattnet, SE	daily rain	16.4 mm (0.6 in)	9.0 mm (0.35 in)	4 years	20 of 100 (Routine)
11 March 1997	Munsvattnet, SE	daily high min	3.0 C (37.4 F)	1.9 C (3.4 F)	20 years	13 of 100 (Routine)
10 March 1997	Munsvattnet, SE	daily high min (Tie)	2.0 C (35.6 F)	tie	36 years	3 of 100 (Routine)
2 March 1997	Munsvattnet, SE	daily rain	6.3 mm (0.25 in)	0.3 mm (0.01 in)	44 years	19 of 100 (Routine)
16 February 1997	Munsvattnet, SE	daily low min	-31.6 C (-24.9 F)	1.0 C (1.8 F)	12 years	9 of 100 (Routine)
11 February 1997	Munsvattnet, SE	daily rain (Tie)	11.3 mm (0.4 in)	tie	10 years	2 of 100 (Routine)
30 January 1997	Munsvattnet, SE	daily high max	5.1 C (41.2 F)	1.2 C (2.2 F)	16 years	9 of 100 (Routine)
29 January 1997	Munsvattnet, SE	daily high max (Tie)	5.0 C (41.0 F)	tie	39 years	3 of 100 (Routine)
27 January 1997	Munsvattnet, SE	daily rain	13.9 mm (0.5 in)	6.7 mm (0.26 in)	37 years	20 of 100 (Routine)
26 January 1997	Munsvattnet, SE	daily high max	3.9 C (39.0 F)	0.3 C (0.5 F)	8 years	6 of 100 (Routine)
21 January 1997	Munsvattnet, SE	daily high max	4.7 C (40.5 F)	0.8 C (1.4 F)	23 years	11 of 100 (Routine)
16 January 1997	Munsvattnet, SE	daily rain (Tie)	8.3 mm (0.33 in)	tie	35 years	3 of 100 (Routine)

Climate Trend

39 complete years, 1958 to 1996

One stripe for each of 39 complete years at Munsvattnet, 1958 to 1996. Blue stripes are years cooler than the station's own mean of 0.4 C (32.6 F); red stripes are warmer. The coolest year was 1985, at -2.1 C (28.3 F), and the warmest was 1990, at 2.5 C (36.4 F). The strongest colour marks a difference of 2.5 C (4.5 F).

Annual mean temperature at Munsvattnet as warming stripes, 1958 to 1996
Year	Annual mean temperature	Difference from the station mean
1958	-0.6 C	-0.97 C
1959	1.7 C	+1.29 C
1960	-0.1 C	-0.50 C
1961	1.4 C	+1.08 C
1962	-0.2 C	-0.60 C
1963	0.5 C	+0.14 C
1964	1.2 C	+0.83 C
1965	-0.2 C	-0.53 C
1966	-1.4 C	-1.73 C
1967	0.6 C	+0.21 C
1968	-0.3 C	-0.62 C
1969	-0.3 C	-0.66 C
1970	0.1 C	-0.25 C
1971	0.7 C	+0.37 C
1972	1.4 C	+1.00 C
1973	0.9 C	+0.58 C
1974	1.3 C	+0.95 C
1975	1.6 C	+1.27 C
1976	-0.2 C	-0.59 C
1977	-0.2 C	-0.53 C
1978	-1.0 C	-1.40 C
1979	-0.6 C	-0.98 C
1980	-0.2 C	-0.55 C
1981	-1.5 C	-1.88 C
1982	0.6 C	+0.22 C
1983	1.0 C	+0.60 C
1984	1.0 C	+0.68 C
1985	-2.1 C	-2.43 C
1986	-0.7 C	-1.03 C
1987	-0.5 C	-0.91 C
1988	0.7 C	+0.38 C
1989	2.1 C	+1.78 C
1990	2.5 C	+2.11 C
1991	1.4 C	+1.02 C
1992	1.3 C	+0.91 C
1993	0.6 C	+0.27 C
1994	0.0 C	-0.32 C
1995	0.9 C	+0.57 C
1996	0.4 C	+0.05 C

The fitted trend in annual mean temperature here over 1958 to 1996 is 0.1 C (-0.2 to 0.4) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.2 F (-0.3 to 0.7) 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 Munsvattnet
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.1 C (-0.2 to 0.4) per decade	0.2 F (-0.3 to 0.7) per decade	1958 to 1996	39	Not clearly different from zero
Mean daily maximum	0.1 C (-0.2 to 0.3) per decade	0.1 F (-0.4 to 0.5) per decade	1958 to 1996	39	Not clearly different from zero
Mean daily minimum	0.2 C (-0.2 to 0.5) per decade	0.3 F (-0.3 to 0.9) per decade	1958 to 1996	39	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 1997

Yearly extremes at Munsvattnet: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	28.9 C (84.0 F)	1971	25.3 C (77.5 F)	41
Coldest night (TNn)	-40.1 C (-40.2 F)	1978	-31.7 C (-25.1 F)	53
Wettest day (Rx1day)	68.4 mm (2.7 in)	1987	30.7 mm (1.2 in)	53
Wettest five days (Rx5day)	109.2 mm (4.3 in)	1992	55.7 mm (2.2 in)	53
Longest dry spell (CDD)	39 days	1996	21 days	53

Hottest day (TXx)

The hottest day of the year at Munsvattnet, 1945 to 1997. The record is 28.9 C (84.0 F) in 1971, marked on the chart; the median year is 25.3 C (77.5 F).

Hottest day (TXx) at Munsvattnet 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	25.0 C (77.0 F)
1958	27.4 C (81.3 F)
1959	24.8 C (76.6 F)
1960	26.0 C (78.8 F)
1961	25.2 C (77.4 F)
1962	20.5 C (68.9 F)
1963	25.0 C (77.0 F)
1964	24.0 C (75.2 F)
1965	24.5 C (76.1 F)
1966	27.8 C (82.0 F)
1967	24.5 C (76.1 F)
1968	28.3 C (82.9 F)
1969	28.5 C (83.3 F)
1970	26.9 C (80.4 F)
1971	28.9 C (84.0 F)
1972	27.9 C (82.2 F)
1973	27.4 C (81.3 F)
1974	27.8 C (82.0 F)
1975	25.9 C (78.6 F)
1976	25.3 C (77.5 F)
1977	25.2 C (77.4 F)
1978	26.3 C (79.3 F)
1979	25.1 C (77.2 F)
1980	27.8 C (82.0 F)
1981	25.3 C (77.5 F)
1982	26.9 C (80.4 F)
1983	25.2 C (77.4 F)
1984	25.0 C (77.0 F)
1985	24.9 C (76.8 F)
1986	26.3 C (79.3 F)
1987	23.1 C (73.6 F)
1988	28.4 C (83.1 F)
1989	26.7 C (80.1 F)
1990	23.9 C (75.0 F)
1991	28.6 C (83.5 F)
1992	25.1 C (77.2 F)
1993	24.9 C (76.8 F)
1994	27.9 C (82.2 F)
1995	25.6 C (78.1 F)
1996	24.9 C (76.8 F)
1997	5.3 C (41.5 F)

Coldest night (TNn)

The coldest night of the year at Munsvattnet, 1945 to 1997. The record is -40.1 C (-40.2 F) in 1978, marked on the chart; the median year is -31.7 C (-25.1 F).

Coldest night (TNn) at Munsvattnet by year
Year	Coldest night (TNn)
1945	-30.0 C (-22.0 F)
1946	-28.0 C (-18.4 F)
1947	-33.5 C (-28.3 F)
1948	-29.0 C (-20.2 F)
1949	-31.0 C (-23.8 F)
1950	-36.0 C (-32.8 F)
1951	-30.0 C (-22.0 F)
1952	-31.0 C (-23.8 F)
1953	-34.0 C (-29.2 F)
1954	-28.7 C (-19.7 F)
1955	-32.0 C (-25.6 F)
1956	-34.9 C (-30.8 F)
1957	-28.0 C (-18.4 F)
1958	-35.3 C (-31.5 F)
1959	-28.5 C (-19.3 F)
1960	-39.0 C (-38.2 F)
1961	-30.0 C (-22.0 F)
1962	-29.1 C (-20.4 F)
1963	-30.2 C (-22.4 F)
1964	-31.2 C (-24.2 F)
1965	-32.0 C (-25.6 F)
1966	-37.0 C (-34.6 F)
1967	-33.1 C (-27.6 F)
1968	-31.7 C (-25.1 F)
1969	-38.1 C (-36.6 F)
1970	-34.2 C (-29.6 F)
1971	-33.8 C (-28.8 F)
1972	-31.6 C (-24.9 F)
1973	-30.9 C (-23.6 F)
1974	-29.2 C (-20.6 F)
1975	-31.2 C (-24.2 F)
1976	-34.3 C (-29.7 F)
1977	-30.8 C (-23.4 F)
1978	-40.1 C (-40.2 F)
1979	-36.2 C (-33.2 F)
1980	-36.8 C (-34.2 F)
1981	-35.2 C (-31.4 F)
1982	-35.3 C (-31.5 F)
1983	-30.3 C (-22.5 F)
1984	-32.4 C (-26.3 F)
1985	-38.8 C (-37.8 F)
1986	-33.6 C (-28.5 F)
1987	-39.7 C (-39.5 F)
1988	-28.7 C (-19.7 F)
1989	-34.2 C (-29.6 F)
1990	-28.9 C (-20.0 F)
1991	-30.1 C (-22.2 F)
1992	-23.9 C (-11.0 F)
1993	-33.2 C (-27.8 F)
1994	-30.9 C (-23.6 F)
1995	-24.2 C (-11.6 F)
1996	-30.1 C (-22.2 F)
1997	-32.1 C (-25.8 F)

Wettest day (Rx1day)

The wettest day of the year at Munsvattnet, 1945 to 1997. The record is 68.4 mm (2.7 in) in 1987, marked on the chart; the median year is 30.7 mm (1.2 in).

Wettest day (Rx1day) at Munsvattnet by year
Year	Wettest day (Rx1day)
1945	58.5 mm (2.3 in)
1946	30.3 mm (1.2 in)
1947	44.0 mm (1.7 in)
1948	26.5 mm (1.0 in)
1949	18.5 mm (0.7 in)
1950	27.5 mm (1.1 in)
1951	37.2 mm (1.5 in)
1952	39.4 mm (1.6 in)
1953	32.0 mm (1.3 in)
1954	33.4 mm (1.3 in)
1955	30.7 mm (1.2 in)
1956	33.7 mm (1.3 in)
1957	26.2 mm (1.0 in)
1958	22.7 mm (0.9 in)
1959	22.0 mm (0.9 in)
1960	41.2 mm (1.6 in)
1961	35.6 mm (1.4 in)
1962	25.2 mm (1.0 in)
1963	23.8 mm (0.9 in)
1964	35.2 mm (1.4 in)
1965	43.5 mm (1.7 in)
1966	23.0 mm (0.9 in)
1967	23.0 mm (0.9 in)
1968	15.0 mm (0.6 in)
1969	56.3 mm (2.2 in)
1970	28.1 mm (1.1 in)
1971	33.8 mm (1.3 in)
1972	24.4 mm (1.0 in)
1973	39.2 mm (1.5 in)
1974	36.7 mm (1.4 in)
1975	36.9 mm (1.5 in)
1976	26.8 mm (1.1 in)
1977	28.1 mm (1.1 in)
1978	46.8 mm (1.8 in)
1979	28.8 mm (1.1 in)
1980	36.4 mm (1.4 in)
1981	24.8 mm (1.0 in)
1982	44.3 mm (1.7 in)
1983	24.5 mm (1.0 in)
1984	27.9 mm (1.1 in)
1985	35.7 mm (1.4 in)
1986	29.6 mm (1.2 in)
1987	68.4 mm (2.7 in)
1988	25.6 mm (1.0 in)
1989	28.9 mm (1.1 in)
1990	45.6 mm (1.8 in)
1991	33.6 mm (1.3 in)
1992	67.3 mm (2.6 in)
1993	57.2 mm (2.3 in)
1994	35.2 mm (1.4 in)
1995	27.3 mm (1.1 in)
1996	28.8 mm (1.1 in)
1997	16.4 mm (0.6 in)

Wettest five days (Rx5day)

The wettest five days of the year at Munsvattnet, 1945 to 1997. The record is 109.2 mm (4.3 in) in 1992, marked on the chart; the median year is 55.7 mm (2.2 in).

Wettest five days (Rx5day) at Munsvattnet by year
Year	Wettest five days (Rx5day)
1945	74.3 mm (2.9 in)
1946	67.0 mm (2.6 in)
1947	50.5 mm (2.0 in)
1948	42.9 mm (1.7 in)
1949	41.6 mm (1.6 in)
1950	69.4 mm (2.7 in)
1951	53.4 mm (2.1 in)
1952	64.8 mm (2.6 in)
1953	65.3 mm (2.6 in)
1954	77.2 mm (3.0 in)
1955	46.6 mm (1.8 in)
1956	55.8 mm (2.2 in)
1957	72.8 mm (2.9 in)
1958	51.4 mm (2.0 in)
1959	45.4 mm (1.8 in)
1960	68.5 mm (2.7 in)
1961	70.5 mm (2.8 in)
1962	48.4 mm (1.9 in)
1963	41.5 mm (1.6 in)
1964	38.4 mm (1.5 in)
1965	70.2 mm (2.8 in)
1966	41.2 mm (1.6 in)
1967	41.8 mm (1.6 in)
1968	38.1 mm (1.5 in)
1969	64.0 mm (2.5 in)
1970	47.4 mm (1.9 in)
1971	55.7 mm (2.2 in)
1972	47.0 mm (1.9 in)
1973	61.3 mm (2.4 in)
1974	64.7 mm (2.5 in)
1975	53.4 mm (2.1 in)
1976	47.0 mm (1.9 in)
1977	54.0 mm (2.1 in)
1978	75.3 mm (3.0 in)
1979	73.2 mm (2.9 in)
1980	60.3 mm (2.4 in)
1981	59.1 mm (2.3 in)
1982	56.2 mm (2.2 in)
1983	54.5 mm (2.1 in)
1984	51.0 mm (2.0 in)
1985	77.3 mm (3.0 in)
1986	48.6 mm (1.9 in)
1987	96.1 mm (3.8 in)
1988	50.4 mm (2.0 in)
1989	59.0 mm (2.3 in)
1990	66.9 mm (2.6 in)
1991	54.1 mm (2.1 in)
1992	109.2 mm (4.3 in)
1993	93.8 mm (3.7 in)
1994	55.1 mm (2.2 in)
1995	44.1 mm (1.7 in)
1996	78.0 mm (3.1 in)
1997	43.8 mm (1.7 in)

Longest dry spell (CDD)

The longest dry spell of the year at Munsvattnet, 1945 to 1997. The record is 39 days in 1996, marked on the chart; the median year is 21 days.

Longest dry spell (CDD) at Munsvattnet by year
Year	Longest dry spell (CDD)
1945	23 days
1946	17 days
1947	24 days
1948	32 days
1949	20 days
1950	18 days
1951	35 days
1952	19 days
1953	27 days
1954	25 days
1955	21 days
1956	19 days
1957	20 days
1958	26 days
1959	23 days
1960	29 days
1961	14 days
1962	18 days
1963	16 days
1964	27 days
1965	27 days
1966	16 days
1967	18 days
1968	27 days
1969	31 days
1970	23 days
1971	15 days
1972	20 days
1973	17 days
1974	21 days
1975	24 days
1976	28 days
1977	20 days
1978	13 days
1979	19 days
1980	22 days
1981	29 days
1982	19 days
1983	26 days
1984	20 days
1985	18 days
1986	30 days
1987	24 days
1988	16 days
1989	14 days
1990	22 days
1991	27 days
1992	37 days
1993	17 days
1994	33 days
1995	13 days
1996	39 days
1997	16 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 Munsvattnet falls on 15 June and the median first autumn frost on 20 August, which leaves a median of 67 days between them.

Fitted over all years, the growing season changes by +8.4 days per decade at this station.

Frost dates and growing season at Munsvattnet
Measure	Median, all years	Earliest period	Recent period (1967 to 1996)	Recent against earliest	Fitted trend
Last spring frost	15 June	n/a	15 June	n/a	-0.8 days per decade
First autumn frost	20 August	n/a	28 August	n/a	+7.6 days per decade
Growing days	67 days	n/a	74 days	n/a	+8.4 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

51 years, 1945 to 1996

A day with at least 31.7 mm (1.2 in) of rain is expected about once in 2 years. A day with at least 77.0 mm (3.0 in) of rain is expected about once in 100 years.

Rainfall return levels at Munsvattnet: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	31.7 mm (1.2 in)
5 years	41.7 mm (1.6 in)
10 years	49.1 mm (1.9 in)
25 years	59.4 mm (2.3 in)
50 years	67.8 mm (2.7 in)
100 years	77.0 mm (3.0 in)	Longer than the 51 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, 51 years of values from 1945 to 1996.

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: 68.4 mm (2.7 in) in 1987; 67.3 mm (2.6 in) in 1992; 58.5 mm (2.3 in) in 1945.

Download the Data

Data for Munsvattnet standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Munsvattnet 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 2025-12-31. Last revised 31 December 2025 (2025-12-31).