Key Facts

From 1951 to 2025, long-record stations in Sweden warmed by +0.32 C per decade (+0.57 F) (95 percent interval +0.21 to +0.43 C), from 85 stations measured against each station's own 1961-1990 mean.
The latest year in the series for Sweden, 2025, was +2.76 C against the 1961-1990 mean.
In Sweden the daily minimum rose faster than the daily maximum, by 0.02 C per decade (the two intervals overlap).
Of 136 stations in Sweden with at least 50 complete years of record, 65 had 2020 as their warmest year.
In Sweden, the mean annual temperature of 73 stations changed by +1.79 C between the 1961-1990 and 2011-2025 periods.

Warming

Sweden, against 1961-1990

Annual mean temperature of the long-record stations in Sweden as a difference from each station's own 1961-1990 mean, 1951 to 2025. 85 stations in 7 grid cells of 5 by 5 degrees, area weighted. Years with too little coverage are left blank and the line or columns are not drawn across the gap; the earliest and latest years can rest on fewer of these stations than the middle years. The station set does not change from year to year. Zero line: each station's own 1961-1990 mean.

Annual mean temperature against the 1961-1990 mean, Sweden
Year	Difference from the 1961-1990 mean
1951	+0.01 C
1952	-0.92 C
1953	+1.41 C
1954	+0.05 C
1955	-0.95 C
1956	-1.30 C
1957	+0.35 C
1958	-0.48 C
1959	+1.46 C
1960	+0.17 C
1961	+1.16 C
1962	-0.78 C
1963	-0.28 C
1964	+0.44 C
1965	-0.71 C
1966	-1.38 C
1967	+0.35 C
1968	-0.65 C
1969	-0.60 C
1970	-0.71 C
1971	+0.03 C
1972	+0.95 C
1973	+0.49 C
1974	+1.30 C
1975	+1.60 C
1976	-0.52 C
1977	-0.22 C
1978	-0.86 C
1979	-0.63 C
1980	-0.72 C
1981	-0.82 C
1982	+0.43 C
1983	+0.68 C
1984	+0.78 C
1985	-1.87 C
1986	-0.37 C
1987	-1.26 C
1988	+0.51 C
1989	+1.91 C
1990	+2.00 C
1991	+0.98 C
1992	+1.35 C
1993	+0.53 C
1994	+0.36 C
1995	+0.64 C
1996	-0.07 C
1997	+1.26 C
1998	+0.36 C
1999	+1.04 C
2000	+2.00 C
2001	+0.63 C
2002	+1.26 C
2003	+1.17 C
2004	+1.06 C
2005	+1.45 C
2006	+1.77 C
2007	+1.54 C
2008	+1.67 C
2009	+0.94 C
2010	-0.85 C
2011	+1.95 C
2012	+0.58 C
2013	+1.34 C
2014	+2.36 C
2015	+2.23 C
2016	+1.60 C
2017	+1.30 C
2018	+1.64 C
2019	+1.51 C
2020	+2.99 C
2021	+1.15 C
2022	+1.98 C
2023	+1.22 C
2024	+2.11 C
2025	+2.76 C

From 1951 to 2025, the long-record stations in Sweden warmed by +0.32 C per decade (+0.57 F) (95 percent interval +0.21 to +0.43 C), from 85 stations in 7 grid cells of 5 by 5 degrees, each measured against its own 1961-1990 mean.

The latest year in the series, 2025, was +2.8 C (+5.0 F) against the 1961-1990 mean.

The five warmest years in the series are 2020 (+2.99 C), 2025 (+2.76 C), 2014 (+2.36 C), 2015 (+2.23 C) and 2024 (+2.11 C).

Trend

Warming trend per decade, Sweden
Measure	Trend per decade (C)	95% interval (C)	Years	Stations
Annual mean temperature	+0.32	+0.21 to +0.43	1951 to 2025	85

Warmest and coolest years in the series

Warmest and coolest years of the 1961-1990 anomaly series, Sweden
Rank	Warmest year	Difference from mean	Coolest year	Difference from mean
1	2020	+2.99 C	1985	-1.87 C
2	2025	+2.76 C	1966	-1.38 C
3	2014	+2.36 C	1956	-1.30 C
4	2015	+2.23 C	1987	-1.26 C
5	2024	+2.11 C	1955	-0.95 C

85 stations in 7 grid cells of 5 by 5 degrees. Each station is compared with its own 1961-1990 mean, so stations at different heights and latitudes can be averaged. Stations are averaged within each grid cell and cells are weighted by the cosine of latitude.

Warmest Years

Sweden, 136 stations

For each year 1914 to 2025, the number of the 136 stations in Sweden with at least 50 complete years of record that had it as their warmest year on record. A station counts once, so the bars add up to 136.

Stations that had each year as their warmest on record, Sweden
Year	Stations with this as their warmest year
1914	0
1915	0
1916	0
1917	0
1918	0
1919	0
1920	1
1921	0
1922	0
1923	0
1924	0
1925	0
1926	0
1927	0
1928	0
1929	0
1930	1
1931	0
1932	0
1933	0
1934	5
1935	0
1936	0
1937	0
1938	12
1939	0
1940	0
1941	0
1942	0
1943	0
1944	0
1945	0
1946	0
1947	0
1948	0
1949	1
1950	0
1951	0
1952	0
1953	2
1954	0
1955	0
1956	0
1957	0
1958	0
1959	0
1960	0
1961	0
1962	0
1963	0
1964	0
1965	0
1966	0
1967	0
1968	0
1969	0
1970	0
1971	0
1972	0
1973	0
1974	0
1975	2
1976	0
1977	0
1978	0
1979	0
1980	0
1981	0
1982	0
1983	0
1984	0
1985	0
1986	0
1987	0
1988	0
1989	4
1990	5
1991	0
1992	0
1993	0
1994	0
1995	0
1996	0
1997	0
1998	0
1999	0
2000	9
2001	0
2002	0
2003	0
2004	0
2005	0
2006	2
2007	0
2008	0
2009	0
2010	0
2011	1
2012	0
2013	0
2014	11
2015	0
2016	0
2017	0
2018	0
2019	0
2020	65
2021	0
2022	0
2023	0
2024	2
2025	13

Of the 136 stations in Sweden with at least 50 complete years of record, 65 (47.8%) had 2020 as their warmest year on record.

The years that were the warmest on record at the most stations are 2020 (65 stations), 2025 (13 stations), 1938 (12 stations), 2014 (11 stations) and 2000 (9 stations).

80 of the 136 stations (58.8%) had their warmest year in the 2020s. That decade is not over.

By decade

Stations by the decade of their warmest year, Sweden
Decade	Stations with their warmest year in it	Share of stations	Stations with one of their five warmest years in it
1910s	0	0.0%	1
1920s	1	0.7%	5
1930s	18	13.2%	58
1940s	1	0.7%	24
1950s	2	1.5%	20
1960s	0	0.0%	3
1970s	2	1.5%	22
1980s	4	2.9%	38
1990s	5	3.7%	51
2000s	11	8.1%	81
2010s	12	8.8%	165
2020s (to date)	80	58.8%	212

The set is the 136 stations with at least 50 complete years (all twelve months with 20 or more days of maximum and minimum). A station's warmest year is the one with the highest annual mean temperature, a tie going to the later year. The count describes these stations, not the whole area.

Days and Nights

Sweden, against 1961-1990

Annual mean daily maximum, daily minimum and day-night range of the long-record stations in Sweden as differences from each station's own 1961-1990 mean, 1951 to 2025. 85 stations in 7 grid cells of 5 by 5 degrees, area weighted. The station set does not change from year to year.

Daily maximum, daily minimum and day-night range against the 1961-1990 mean, Sweden
Year	Daily maximum	Daily minimum	Day-night range (maximum minus minimum)
1951	+0.02 C	0.00 C	+0.02 C
1952	-0.85 C	-1.00 C	+0.15 C
1953	+1.35 C	+1.47 C	-0.12 C
1954	-0.08 C	+0.18 C	-0.26 C
1955	-0.53 C	-1.37 C	+0.83 C
1956	-1.04 C	-1.56 C	+0.51 C
1957	+0.19 C	+0.52 C	-0.33 C
1958	-0.45 C	-0.51 C	+0.06 C
1959	+1.60 C	+1.32 C	+0.28 C
1960	+0.08 C	+0.25 C	-0.18 C
1961	+1.09 C	+1.23 C	-0.14 C
1962	-0.74 C	-0.81 C	+0.07 C
1963	-0.07 C	-0.50 C	+0.43 C
1964	+0.49 C	+0.40 C	+0.09 C
1965	-0.66 C	-0.75 C	+0.09 C
1966	-1.40 C	-1.36 C	-0.03 C
1967	+0.18 C	+0.51 C	-0.33 C
1968	-0.39 C	-0.91 C	+0.52 C
1969	-0.19 C	-1.02 C	+0.82 C
1970	-0.69 C	-0.73 C	+0.03 C
1971	+0.15 C	-0.09 C	+0.24 C
1972	+0.75 C	+1.15 C	-0.40 C
1973	+0.59 C	+0.38 C	+0.22 C
1974	+1.09 C	+1.52 C	-0.43 C
1975	+1.77 C	+1.43 C	+0.34 C
1976	-0.21 C	-0.83 C	+0.62 C
1977	-0.44 C	0.00 C	-0.45 C
1978	-0.79 C	-0.93 C	+0.14 C
1979	-0.83 C	-0.43 C	-0.40 C
1980	-0.54 C	-0.89 C	+0.35 C
1981	-0.71 C	-0.93 C	+0.22 C
1982	+0.43 C	+0.44 C	0.00 C
1983	+0.63 C	+0.73 C	-0.09 C
1984	+0.48 C	+1.08 C	-0.60 C
1985	-1.85 C	-1.90 C	+0.05 C
1986	-0.43 C	-0.31 C	-0.12 C
1987	-1.40 C	-1.11 C	-0.29 C
1988	+0.35 C	+0.67 C	-0.32 C
1989	+1.81 C	+2.00 C	-0.19 C
1990	+1.73 C	+2.26 C	-0.53 C
1991	+0.68 C	+1.29 C	-0.61 C
1992	+1.17 C	+1.53 C	-0.36 C
1993	+0.31 C	+0.75 C	-0.44 C
1994	+0.53 C	+0.19 C	+0.35 C
1995	+0.52 C	+0.76 C	-0.25 C
1996	+0.01 C	-0.14 C	+0.15 C
1997	+1.30 C	+1.21 C	+0.09 C
1998	-0.01 C	+0.74 C	-0.75 C
1999	+0.96 C	+1.12 C	-0.16 C
2000	+1.72 C	+2.28 C	-0.56 C
2001	+0.53 C	+0.74 C	-0.21 C
2002	+1.42 C	+1.10 C	+0.31 C
2003	+1.44 C	+0.89 C	+0.55 C
2004	+1.13 C	+0.98 C	+0.15 C
2005	+1.60 C	+1.31 C	+0.29 C
2006	+1.97 C	+1.57 C	+0.39 C
2007	+1.60 C	+1.48 C	+0.12 C
2008	+1.62 C	+1.72 C	-0.10 C
2009	+0.84 C	+1.04 C	-0.19 C
2010	-0.75 C	-0.95 C	+0.19 C
2011	+1.96 C	+1.94 C	+0.02 C
2012	+0.36 C	+0.81 C	-0.45 C
2013	+1.60 C	+1.08 C	+0.52 C
2014	+2.17 C	+2.55 C	-0.38 C
2015	+2.08 C	+2.37 C	-0.29 C
2016	+1.57 C	+1.62 C	-0.05 C
2017	+1.11 C	+1.49 C	-0.38 C
2018	+1.99 C	+1.30 C	+0.69 C
2019	+1.56 C	+1.46 C	+0.10 C
2020	+2.84 C	+3.14 C	-0.30 C
2021	+1.17 C	+1.14 C	+0.04 C
2022	+2.12 C	+1.83 C	+0.29 C
2023	+1.37 C	+1.07 C	+0.30 C
2024	+2.16 C	+2.07 C	+0.09 C
2025	+2.74 C	+2.77 C	-0.03 C

From 1951 to 2025, the daily maximum in Sweden changed by +0.31 C per decade (+0.56 F) (95 percent interval +0.20 to +0.42 C) and the daily minimum by +0.32 C per decade (+0.58 F) (95 percent interval +0.21 to +0.44 C), from 85 stations.

The daily minimum rose faster, by 0.02 C per decade more than the daily maximum; the two intervals overlap, so the data do not separate them.

The day-night range (daily maximum minus daily minimum) changed by -0.01 C per decade (95 percent interval -0.05 to +0.03 C), an interval that includes zero.

Trends per decade

Trends in the daily maximum, the daily minimum and the day-night range, Sweden
Measure	Trend per decade (C)	95% interval (C)	Years	Stations
Daily maximum	+0.31	+0.20 to +0.42	1951 to 2025	85
Daily minimum	+0.32	+0.21 to +0.44	1951 to 2025	85
Day-night range (maximum minus minimum)	-0.01	-0.05 to +0.03	1951 to 2025	85

The day-night range is the daily maximum minus the daily minimum, so a falling range means the minimum rose by more than the maximum. Intervals allow for year to year persistence in the series.

Hot Days, Warm Nights and Frost Days by Decade: Sweden

Up to 62 stations per measure, fixed sets

In Sweden, the mean number of days with a daily maximum at or above 30 C (86 F) per year at 62 stations rose from 0.3 to 1.3 between the 1960s and the 2010s; the 2020s so far (6 years) average 1.1.
In Sweden, the mean number of days with a daily maximum at or above 35 C (95 F) per year at 62 stations was 0.0 in both between the 1960s and the 2010s; the 2020s so far (6 years) average 0.0.
In Sweden, the mean number of days with a daily maximum at or above 40 C (104 F) per year at 62 stations was 0.0 in both between the 1960s and the 2010s; the 2020s so far (6 years) average 0.0.
In Sweden, the mean number of warm nights, with a daily minimum at or above 20 C (68 F) per year at 62 stations rose from 0.0 to 0.5 between the 1960s and the 2010s; the 2020s so far (6 years) average 0.2.
In Sweden, the mean number of frost days, with a daily minimum at or below 0 C (32 F) per year at 62 stations fell from 156.6 to 135.3 between the 1960s and the 2010s; the 2020s so far (6 years) average 125.3.
In Sweden, the mean number of ice days, with a daily maximum at or below 0 C (32 F) per year at 62 stations fell from 73.0 to 54.3 between the 1960s and the 2010s; the 2020s so far (6 years) average 43.8.

Days at or above 30 C

Mean days with a daily maximum at or above 30 C (86 F) per year, by decade (1960s to 2020s), Sweden. The same 62 stations are in every decade: each has complete years in every decade from the 1960s, so a change in the station mix cannot move the bars. The 2020s are not over: 6 years so far.

Days at or above 35 C

Mean days with a daily maximum at or above 35 C (95 F) per year, by decade (1960s to 2020s), Sweden. The same 62 stations are in every decade: each has complete years in every decade from the 1960s, so a change in the station mix cannot move the bars. The 2020s are not over: 6 years so far.

Days at or above 40 C

Mean days with a daily maximum at or above 40 C (104 F) per year, by decade (1960s to 2020s), Sweden. The same 62 stations are in every decade: each has complete years in every decade from the 1960s, so a change in the station mix cannot move the bars. The 2020s are not over: 6 years so far.

Tropical nights (min at or above 20 C)

Mean warm nights, with a daily minimum at or above 20 C (68 F) per year, by decade (1960s to 2020s), Sweden. The same 62 stations are in every decade: each has complete years in every decade from the 1960s, so a change in the station mix cannot move the bars. The 2020s are not over: 6 years so far.

Frost days (min at or below 0 C)

Mean frost days, with a daily minimum at or below 0 C (32 F) per year, by decade (1960s to 2020s), Sweden. The same 62 stations are in every decade: each has complete years in every decade from the 1960s, so a change in the station mix cannot move the bars. The 2020s are not over: 6 years so far.

Ice days (max at or below 0 C)

Mean ice days, with a daily maximum at or below 0 C (32 F) per year, by decade (1960s to 2020s), Sweden. The same 62 stations are in every decade: each has complete years in every decade from the 1960s, so a change in the station mix cannot move the bars. The 2020s are not over: 6 years so far.

Each measure counts days in complete years only. A station is in a measure's set when it has complete years in every decade from the 1960s, so each chart compares the same places over time. A grey bar is a decade that is not over.

Heavy Rain and Dry Spells by Decade: Sweden

307 stations in the annual rain series

In Sweden, annual rain at 307 stations is shown as a percent difference from each station's own 1961-1990 mean, for 75 years from 1951 to 2025.
The trend in annual rain is +2.7 percent per decade (95 percent interval +1.6 to +3.8), fitted to 75 years from 1951 to 2025.
In Sweden, the share of a year's rain that fell in its wettest five days was 9.6 in both percent between the 1960s and the 2020s at 176 stations.
In Sweden, the mean number of days with 25 mm (1.0 in) or more of rain per year rose from 1.46 to 2.18 between the 1960s and the 2020s.
In Sweden, the mean number of days with 50 mm (2.0 in) or more of rain per year rose from 0.08 to 0.15 between the 1960s and the 2020s.
In Sweden, the mean number of days with 100 mm (3.9 in) or more of rain per year rose from 0.00 to 0.01 between the 1960s and the 2020s.
In Sweden, the mean longest dry spell of the year, in days with less than 1 mm of rain in a row, rose from 24.3 to 24.4 days between the 1960s and the 2020s, over the same 176 stations in every decade.

Annual rain against the 1961-1990 mean

Annual rain in Sweden as a percent difference from each station's own 1961-1990 mean, for 307 stations with a long record, 1951 to 2025. Stations are averaged in 5 degree grid cells and the cells are weighted by the cosine of latitude.

Annual rain as a percent difference from the 1961-1990 mean, Sweden
Year	Annual rain, percent difference from the mean
1951	-12.1%
1952	-0.8%
1953	-0.2%
1954	14.3%
1955	-15.8%
1956	-19.2%
1957	7.7%
1958	-7.3%
1959	-16.7%
1960	14.4%
1961	5.3%
1962	-4.2%
1963	-8.7%
1964	-11.6%
1965	-0.3%
1966	10.2%
1967	17.1%
1968	-9.6%
1969	-17.6%
1970	-2.0%
1971	-12.0%
1972	-9.9%
1973	-6.5%
1974	6.7%
1975	-10.9%
1976	-21.6%
1977	6.6%
1978	-7.3%
1979	7.0%
1980	-4.9%
1981	10.2%
1982	-5.0%
1983	4.8%
1984	4.7%
1985	13.5%
1986	3.3%
1987	12.9%
1988	9.8%
1989	2.4%
1990	13.1%
1991	1.4%
1992	14.9%
1993	14.3%
1994	-7.2%
1995	6.0%
1996	-5.2%
1997	1.0%
1998	32.0%
1999	8.9%
2000	35.7%
2001	18.9%
2002	-3.5%
2003	-1.3%
2004	10.1%
2005	5.0%
2006	11.3%
2007	8.5%
2008	12.2%
2009	8.7%
2010	5.9%
2011	20.4%
2012	25.7%
2013	-1.8%
2014	2.8%
2015	17.8%
2016	-1.6%
2017	13.3%
2018	-13.1%
2019	13.8%
2020	20.5%
2021	15.0%
2022	2.4%
2023	21.0%
2024	17.9%
2025	10.9%

Share of the year's rain in its wettest five days

Mean share of a year's rain that fell in its wettest five days, by decade, Sweden, 1960s to 2020s, for 176 stations that report complete years in every decade.

Days with 25 mm or more rain

Mean number of days with 25 mm (1.0 in) or more of rain per year, by decade, Sweden, 1960s to 2020s, for a fixed set of stations that report complete years in every decade.

Days with 50 mm or more rain

Mean number of days with 50 mm (2.0 in) or more of rain per year, by decade, Sweden, 1960s to 2020s, for a fixed set of stations that report complete years in every decade.

Days with 100 mm or more rain

Mean number of days with 100 mm (3.9 in) or more of rain per year, by decade, Sweden, 1960s to 2020s, for a fixed set of stations that report complete years in every decade.

Longest dry spell of the year

Mean length in days of the longest run of days with less than 1 mm of rain in a year, by decade, Sweden, 1960s to 2020s, over the same 176 stations in every decade.

The annual rain series uses stations with at least 50 complete years since 1951 and a 1961-1990 baseline. The decade charts use fixed sets of stations, the same in every decade from the 1960s. A dry day has less than 1 mm (0.04 in) of rain.

The New Normal

Sweden, 1961-1990 against 2011-2025

Change in annual mean temperature from 1961-1990 to 2011-2025 at 64 stations in Sweden, one dot per station (the stations with the most complete years, at most one per half degree cell). The scope figures use 73 stations with at least 20 complete years in 1961-1990 and in 1991-2020 and at least 8 in 2011-2025. Made with Natural Earth.

Change in annual mean temperature from 1961-1990 to 2011-2025, Sweden
Station	Change in mean temperature
Mariestad	+2.4 C (+4.3 F)
Ulricehamn	+2.3 C (+4.2 F)
Oskarshamn	+2.3 C (+4.2 F)
Asele	+2.3 C (+4.1 F)
Falun	+2.3 C (+4.1 F)
Mora_A	+2.2 C (+3.9 F)
Jackvik	+2.2 C (+3.9 F)
Mala	+2.2 C (+3.9 F)
Saffle	+2.1 C (+3.8 F)
Uppsala_Aut	+2.1 C (+3.8 F)
Holjes	+2.1 C (+3.8 F)
Oxelosund	+2.1 C (+3.8 F)
Skovde	+2.1 C (+3.7 F)
Orskar_A	+2.0 C (+3.6 F)
Kiruna_Flygplats	+2.0 C (+3.6 F)
Soderarm	+2.0 C (+3.6 F)
Lulea Flygplats	+2.0 C (+3.6 F)
Falsterbo	+1.9 C (+3.5 F)
Hoburg	+1.9 C (+3.5 F)
Landsort	+1.9 C (+3.4 F)
Olands Norra Udde	+1.9 C (+3.4 F)
Kristinehamn	+1.9 C (+3.4 F)
Boras	+1.9 C (+3.4 F)
Lainio	+1.9 C (+3.4 F)
Bollerup	+1.9 C (+3.3 F)
Stockholm	+1.8 C (+3.3 F)
Ramsjoholm	+1.8 C (+3.3 F)
Malexander	+1.8 C (+3.2 F)
Lycksele_A	+1.8 C (+3.2 F)
Osby	+1.8 C (+3.2 F)
Stalldalen	+1.8 C (+3.2 F)
Leksand	+1.8 C (+3.2 F)
Ljusnedal	+1.8 C (+3.2 F)
Arjeplog A	+1.8 C (+3.2 F)
Sundsvalls Flygplats	+1.7 C (+3.1 F)
Karlshamn	+1.7 C (+3.1 F)
Stockholm-Bromma	+1.7 C (+3.1 F)
Naimakka	+1.7 C (+3.1 F)
Prastkulla	+1.7 C (+3.1 F)
Pitea	+1.7 C (+3.1 F)
Olands Sodra Udde	+1.7 C (+3.0 F)
Karlsborg_Mo	+1.7 C (+3.0 F)
Satenas	+1.7 C (+3.0 F)
Gustavsfors	+1.7 C (+3.0 F)
Risinge	+1.7 C (+3.0 F)
Hudiksvall	+1.7 C (+3.0 F)
Hemse	+1.7 C (+3.0 F)
Berg	+1.6 C (+3.0 F)
Umea_Flygplats	+1.6 C (+3.0 F)
Vasteras-Hasslo	+1.6 C (+2.9 F)
Forse	+1.6 C (+2.9 F)
Ronneby-Bredakra	+1.6 C (+2.8 F)
Vanersborg	+1.6 C (+2.8 F)
Hoglekardalen	+1.6 C (+2.8 F)
Krangede_A	+1.6 C (+2.8 F)
Harnosand	+1.5 C (+2.8 F)
Almdalen	+1.5 C (+2.7 F)
Abisko	+1.5 C (+2.7 F)
Varberg	+1.5 C (+2.7 F)
Barkakra	+1.5 C (+2.6 F)
Nordkoster A	+1.4 C (+2.6 F)
Karlstad-Airport	+1.3 C (+2.4 F)
Linkoeping-Malmslaett	+1.2 C (+2.1 F)
Visby_Flygplats	+1.1 C (+1.9 F)

Across 73 stations in Sweden with long records, the mean annual temperature was 3.0 C (37.4 F) in 1961-1990, 4.2 C (39.6 F) in 1991-2020 and 4.8 C (40.6 F) in 2011-2025, a change of +1.8 C (+3.2 F) from the first period to the latest.

Mean annual rain, from years with at least 329 days of rain data, was 581.0 mm (22.9 in) in 1961-1990, 619.2 mm (24.4 in) in 1991-2020 and 628.4 mm (24.7 in) in 2011-2025, a change of +8.2% from the first period to the latest.

Of the 64 stations on the map, 64 were warmer in 2011-2025 than in 1961-1990.

41 of the 57 stations on the map with a rain figure had more rain and 15 had less.

Three periods

Mean temperature and annual rain in three periods, Sweden
Period	Mean temperature	Annual rain
1961-1990	3.0 C (37.4 F)	581.0 mm (22.9 in)
1991-2020	4.2 C (39.6 F)	619.2 mm (24.4 in)
2011-2025	4.8 C (40.6 F)	628.4 mm (24.7 in)
Change, 1991-2020 against 1961-1990	+1.3 C (+2.3 F)	+6.6%
Change, 2011-2025 against 1961-1990	+1.8 C (+3.2 F)	+8.2%

Based on 73 stations with at least 20 complete years in 1961-1990 and in 1991-2020 and at least 8 in 2011-2025. The periods 1991-2020 and 2011-2025 overlap. Scope means are weighted by grid cell, as in the warming series; rain counts years with at least 329 days of rain data.

Longest Hot, Cold, Wet and Dry Streaks: Sweden

5 lists of 10

In Sweden, the longest run of hot days in a row in the data is 3 days, at Akers_Styckebruk (Sweden), from 6 August 1975 to 8 August 1975.
In Sweden, the longest run of frost days in a row in the data is 248 days, at Karesuando (Sweden), from 20 September 1957 to 25 May 1958.
In Sweden, the longest run of ice days in a row in the data is 188 days, at Stekenjokk_A (Sweden), from 5 October 2023 to 9 April 2024.
In Sweden, the longest run of dry days in a row in the data is 329 days, at Holmogadd A (Sweden), in 2003.
In Sweden, the longest run of wet days in a row in the data is 38 days, at Jormlien (Sweden), in 1989.

Longest run of days at or above 35 C

Consecutive days with a daily maximum at or above 35 C (95 F).

Longest run of days at or above 35 C, Sweden: the 10 longest runs
Rank	Station	Country	Length	When
1	Akers_Styckebruk	Sweden	3 days	6 to 8 August 1975
2	Holma	Sweden	3 days	7 to 9 August 1975
3	Boras	Sweden	2 days	20 to 21 July 1901
4	Sveg	Sweden	2 days	8 to 9 July 1933
5	Huskvarna	Sweden	2 days	13 to 14 July 1941
6	Hasslarp	Sweden	2 days	29 to 30 June 1947
7	Simlangsdalen	Sweden	2 days	29 to 30 June 1947
8	Prastkulla	Sweden	2 days	29 to 30 June 1947
9	Bjarka-Saby	Sweden	2 days	29 to 30 June 1947
10	Norrkoping	Sweden	2 days	30 June to 1 July 1947

Longest run of frost days (minimum at or below 0 C)

Consecutive days with a daily minimum at or below 0 C (32 F).

Longest run of frost days (minimum at or below 0 C), Sweden: the 10 longest runs
Rank	Station	Country	Length	When
1	Karesuando	Sweden	248 days	20 September 1957 to 25 May 1958
2	Tarfala_A	Sweden	245 days	29 September 2019 to 30 May 2020
3	Gallivare_A	Sweden	244 days	20 September 1916 to 21 May 1917
4	Kvikkjokk-Arrenjarka	Sweden	241 days	24 September 1916 to 22 May 1917
5	Hede	Sweden	240 days	6 October 1954 to 2 June 1955
6	Stekenjokk_A	Sweden	239 days	29 September 2019 to 24 May 2020
7	Kiruna_Flygplats	Sweden	233 days	24 September 1976 to 14 May 1977
8	Jokkmokk	Sweden	232 days	24 September 1916 to 13 May 1917
9	Lainio	Sweden	232 days	1 October 1941 to 20 May 1942
10	Langvattnet	Sweden	232 days	26 September 1954 to 15 May 1955

Longest run of ice days (maximum at or below 0 C)

Consecutive days with a daily maximum at or below 0 C (32 F).

Longest run of ice days (maximum at or below 0 C), Sweden: the 10 longest runs
Rank	Station	Country	Length	When
1	Stekenjokk_A	Sweden	188 days	5 October 2023 to 9 April 2024
2	Karesuando	Sweden	147 days	9 November 1965 to 4 April 1966
3	Naimakka	Sweden	146 days	10 November 1965 to 4 April 1966
4	Muodoslompolo	Sweden	145 days	8 November 1965 to 1 April 1966
5	Lainio	Sweden	143 days	9 November 1965 to 31 March 1966
6	Pajala	Sweden	142 days	10 November 1965 to 31 March 1966
7	Harads	Sweden	130 days	10 November 1965 to 19 March 1966
8	Overkalix-Svartbyn	Sweden	130 days	10 November 1965 to 19 March 1966
9	Palkem	Sweden	130 days	10 November 1965 to 19 March 1966
10	Murjek	Sweden	130 days	10 November 1965 to 19 March 1966

Longest dry spell (days under 1 mm of rain), within one year

Consecutive days with less than 1 mm (0.04 in) of rain, the longest run within a year. The dates are not kept, so the list gives the year (within the year).

Longest dry spell (days under 1 mm of rain), within one year, Sweden: the 10 longest runs
Rank	Station	Country	Length	When
1	Holmogadd A	Sweden	329 days	within 2003
2	Gavle	Sweden	122 days	within 1880
3	Korsselbranna	Sweden	96 days	within 1960
4	Ojebyn	Sweden	94 days	within 1974
5	Gunnarn	Sweden	93 days	within 1945
6	Jokkmokk	Sweden	86 days	within 1875
7	Gotska Sandon	Sweden	85 days	within 1951
8	Karesuando	Sweden	80 days	within 1882
9	Landsort	Sweden	73 days	within 1964
10	Ostergarnsholm_A	Sweden	72 days	within 1964

Longest wet spell (days with 1 mm or more of rain), within one year

Consecutive days with 1 mm (0.04 in) or more of rain, the longest run within a year. The dates are not kept, so the list gives the year (within the year).

Longest wet spell (days with 1 mm or more of rain), within one year, Sweden: the 10 longest runs
Rank	Station	Country	Length	When
1	Jormlien	Sweden	38 days	within 1989
2	Leipikvattnet	Sweden	38 days	within 1989
3	Kallered_D	Sweden	31 days	within 2002
4	Baksjonaset	Sweden	29 days	within 1975
5	Overang	Sweden	29 days	within 1975
6	Uddevalla	Sweden	29 days	within 2002
7	Storlien-Storvallen	Sweden	28 days	within 1975
8	Sandnas	Sweden	28 days	within 1975
9	Joesjo	Sweden	28 days	within 1989
10	Hemavan	Sweden	28 days	within 1989

A run belongs to the year it started in, even when it ran on into the next year. A station appears once per list, with its longest run in a complete year. Dry and wet spells are the longest run within a year. Lists use complete years only, so a long run in a year with gaps in the record is not counted.

Snow Cover and Heavy Snowfall by Decade: Sweden

11 stations, fixed set

In Sweden, the mean number of days per season with snow on the ground (25 mm or more, 1.0 in) at 11 stations fell from 165.5 to 115.2 between the 1960s and the 2020s.
In Sweden, the mean number of heavy snowfall days per season (100 mm or more, 3.9 in, in a day) was 0.00 in both between the 1960s and the 2020s.
The trend in snow cover days is -8.5 days per decade (95 percent interval -10.3 to -6.7), fitted to 66 seasons from 1960 to 2025.

Days with snow on the ground per season

Mean number of days per season with at least 25 mm (1.0 in) of snow on the ground, by decade, Sweden, 1960s to 2020s, the same 11 stations in every decade. A season runs from 1 July to 30 June.

Heavy snowfall days per season

Mean number of days per season with 100 mm (3.9 in) or more of new snow, by decade, Sweden, 1960s to 2020s, the same 11 stations in every decade.

A snow season runs from 1 July to 30 June and is labelled by the year it starts in, so 2009-10 is the season of 2009. A season is complete when at least 150 days report snow depth. The set holds stations at 20 degrees north or further north with at least 5 snow cover days per season on average in 1961-1990 and complete seasons in every decade.

Biggest One Day Temperature Swings: Sweden

5 lists of 10

In Sweden, the largest reported one day rise in the daily maximum is 35.0 C (63.0 F), at Kvikkjokk-Arrenjarka (Sweden) on 22 December 1926.
In Sweden, the largest reported one day drop in the daily maximum is 32.4 C (58.3 F), at Jokkmokk (Sweden) on 3 February 1917.
In Sweden, the largest reported one day rise in the daily minimum is 36.4 C (65.5 F), at Kvikkjokk-Arrenjarka (Sweden) on 23 December 1926.
In Sweden, the largest reported one day drop in the daily minimum is 29.8 C (53.6 F), at Kvikkjokk-Arrenjarka (Sweden) on 1 December 1888.
In Sweden, the largest reported widest range between the high and the low of one day is 38.8 C (69.8 F), at Kvikkjokk-Arrenjarka (Sweden) on 22 December 1926.

Caveat.Single readings can still be instrument errors that quality control missed. A station with one faulty value can top a list, so read each entry as a reported value, not as a confirmed event.

Biggest one day rise in the daily maximum

The largest increase in the daily maximum temperature from one day to the next. Values are in degrees Celsius with Fahrenheit beside them.

Biggest one day rise in the daily maximum, Sweden
Rank	Station	Country	Value	Date
1	Kvikkjokk-Arrenjarka	Sweden	35.0 C (63.0 F)	22 December 1926
2	Norsjo	Sweden	34.1 C (61.4 F)	10 December 1973
3	Hogson	Sweden	34.0 C (61.2 F)	1 February 1956
4	Lycksele_A	Sweden	34.0 C (61.2 F)	10 December 1973
5	Jokkmokk	Sweden	33.8 C (60.8 F)	22 December 1926
6	Fredrika	Sweden	33.8 C (60.8 F)	10 December 1973
7	Vittangi	Sweden	33.2 C (59.8 F)	18 January 1950
8	Gielas	Sweden	32.4 C (58.3 F)	8 January 2010
9	Karesuando	Sweden	32.0 C (57.6 F)	26 November 1890
10	Skelleftea_Flygplats	Sweden	32.0 C (57.6 F)	10 December 1973

Biggest one day drop in the daily maximum

The largest decrease in the daily maximum temperature from one day to the next. Values are in degrees Celsius with Fahrenheit beside them.

Biggest one day drop in the daily maximum, Sweden
Rank	Station	Country	Value	Date
1	Jokkmokk	Sweden	32.4 C (58.3 F)	3 February 1917
2	Jackvik	Sweden	26.5 C (47.7 F)	11 January 2018
3	Suddesjaur	Sweden	25.8 C (46.4 F)	29 December 1974
4	Vittangi	Sweden	25.8 C (46.4 F)	24 December 1978
5	Asele	Sweden	25.8 C (46.4 F)	20 January 1985
6	Karesuando	Sweden	25.4 C (45.7 F)	28 November 1944
7	Nikkaluokta_A	Sweden	25.4 C (45.7 F)	4 January 2011
8	Vuoggatjalme	Sweden	25.0 C (45.0 F)	11 December 1961
9	Langvattnet	Sweden	24.7 C (44.5 F)	7 February 1987
10	Forshult	Sweden	24.6 C (44.3 F)	5 January 1950

Biggest one day rise in the daily minimum

The largest increase in the daily minimum temperature from one day to the next. Values are in degrees Celsius with Fahrenheit beside them.

Biggest one day rise in the daily minimum, Sweden
Rank	Station	Country	Value	Date
1	Kvikkjokk-Arrenjarka	Sweden	36.4 C (65.5 F)	23 December 1926
2	Nikkaluokta_A	Sweden	35.9 C (64.6 F)	23 February 2019
3	Tarnaby	Sweden	35.0 C (63.0 F)	13 January 1914
4	Forse	Sweden	35.0 C (63.0 F)	31 December 1919
5	Gielas	Sweden	34.9 C (62.8 F)	6 February 2015
6	Ljusnedal	Sweden	34.5 C (62.1 F)	21 February 1940
7	Nikkaluokta	Sweden	34.2 C (61.6 F)	19 November 1985
8	Vuoggatjalme	Sweden	34.0 C (61.2 F)	30 November 1995
9	Naimakka	Sweden	33.9 C (61.0 F)	21 December 2006
10	Jackvik	Sweden	33.7 C (60.7 F)	30 November 1995

Biggest one day drop in the daily minimum

The largest decrease in the daily minimum temperature from one day to the next. Values are in degrees Celsius with Fahrenheit beside them.

Biggest one day drop in the daily minimum, Sweden
Rank	Station	Country	Value	Date
1	Kvikkjokk-Arrenjarka	Sweden	29.8 C (53.6 F)	1 December 1888
2	Gaddede	Sweden	26.5 C (47.7 F)	7 March 1922
3	Suddesjaur	Sweden	26.0 C (46.8 F)	15 January 1959
4	Vittangi	Sweden	25.9 C (46.6 F)	7 December 1979
5	Storlien	Sweden	25.8 C (46.4 F)	28 November 1955
6	Karesuando	Sweden	25.8 C (46.4 F)	28 November 2002
7	Svappavaara	Sweden	25.7 C (46.3 F)	2 January 1976
8	Sveg	Sweden	25.5 C (45.9 F)	15 January 1940
9	Naimakka	Sweden	25.5 C (45.9 F)	28 November 2002
10	Ljusnedal	Sweden	25.4 C (45.7 F)	30 December 1940

Widest range between the high and the low of one day

The largest difference between the highest and the lowest temperature of the same day. Values are in degrees Celsius with Fahrenheit beside them.

Widest range between the high and the low of one day, Sweden
Rank	Station	Country	Value	Date
1	Kvikkjokk-Arrenjarka	Sweden	38.8 C (69.8 F)	22 December 1926
2	Myrheden	Sweden	37.8 C (68.0 F)	10 December 1973
3	Nikkaluokta_A	Sweden	37.8 C (68.0 F)	20 January 1997
4	Suddesjaur	Sweden	37.2 C (67.0 F)	26 January 1959
5	Karesuando	Sweden	37.0 C (66.6 F)	22 December 1926
6	Hallnas-Lund	Sweden	36.8 C (66.2 F)	10 December 1973
7	Vuoggatjalme	Sweden	36.7 C (66.1 F)	28 February 1969
8	Jokkmokk	Sweden	36.6 C (65.9 F)	22 December 1926
9	Sveg	Sweden	36.5 C (65.7 F)	17 March 1888
10	Vannas	Sweden	36.5 C (65.7 F)	10 December 1973

Only stations with at least 10 complete years are listed, and a station appears once per list.

Hot and Dry Summers: Sweden

222 stations with a 1961-1990 record

In Sweden, the share of stations with a hot and dry summer is shown for each year from 1882 to 2026, for 222 stations with at least 20 complete summers in 1961-1990. Each year counts the stations of that set with a complete summer in the year.
In Sweden, 10.3% of station summers in 1961-1990 were hot and dry (6,021 station summers).
In Sweden, 8.0% of station summers in 2012-2026 were hot and dry (1,084 station summers).
In Sweden, 1955 had the highest share: 76.8% of 125 stations (96).

A summer is hot when its mean daily maximum is at or above the station's 80th percentile of its 1961-1990 summers, and dry when its rain is at or below the 20th percentile. A summer is hot and dry when it is both. Summer is June to August north of the equator and December to February south of it, labelled by the year of its first month.

Share of stations with a hot and dry summer

Percent of stations with a complete summer that were both hot and dry, by year, Sweden, 1882 to 2026, out of 222 stations with at least 20 complete summers in 1961-1990. Dashed line: the 1961-1990 level in this data, 10.3% of station summers. The most in one year was 76.8%. Dashed line: 1961-1990 level, 10.3%.

Share of stations with a hot and dry summer by year, Sweden
Summer	Stations with a hot and dry summer
1882	0.0%
1883	6.3%
1884	15.8%
1885	0.0%
1886	26.3%
1887	22.2%
1888	0.0%
1889	0.0%
1890	0.0%
1891	5.3%
1892	0.0%
1893	0.0%
1894	0.0%
1895	0.0%
1896	0.0%
1897	10.0%
1898	0.0%
1899	20.0%
1900	5.3%
1901	36.8%
1902	0.0%
1903	0.0%
1904	0.0%
1905	0.0%
1906	4.5%
1907	0.0%
1908	0.0%
1909	0.0%
1910	4.5%
1911	8.7%
1912	4.3%
1913	8.7%
1914	65.2%
1915	0.0%
1916	4.2%
1917	23.1%
1918	3.8%
1919	0.0%
1920	0.0%
1921	0.0%
1922	0.0%
1923	0.0%
1924	3.4%
1925	11.5%
1926	0.0%
1927	0.0%
1928	0.0%
1929	0.0%
1930	17.6%
1931	0.0%
1932	5.7%
1933	6.1%
1934	6.1%
1935	0.0%
1936	0.0%
1937	31.4%
1938	2.9%
1939	11.4%
1940	2.9%
1941	2.8%
1942	2.9%
1943	0.0%
1944	5.3%
1945	1.2%
1946	1.3%
1947	34.6%
1948	2.6%
1949	3.4%
1950	11.2%
1951	2.1%
1952	0.0%
1953	4.8%
1954	0.0%
1955	76.8%
1956	0.0%
1957	0.0%
1958	0.0%
1959	71.5%
1960	0.0%
1961	0.0%
1962	0.0%
1963	0.0%
1964	0.0%
1965	0.0%
1966	2.6%
1967	1.5%
1968	13.6%
1969	57.4%
1970	8.0%
1971	0.5%
1972	11.9%
1973	35.7%
1974	0.0%
1975	57.1%
1976	39.3%
1977	0.0%
1978	0.0%
1979	0.0%
1980	8.8%
1981	0.0%
1982	6.3%
1983	45.4%
1984	0.0%
1985	0.0%
1986	0.0%
1987	0.0%
1988	3.4%
1989	1.7%
1990	0.0%
1991	0.0%
1992	7.7%
1993	0.0%
1994	28.2%
1995	19.3%
1996	0.7%
1997	24.4%
1998	0.0%
1999	10.8%
2000	0.0%
2001	1.7%
2002	9.6%
2003	7.1%
2004	0.0%
2005	1.0%
2006	26.0%
2007	8.0%
2008	0.0%
2009	1.1%
2010	0.0%
2011	0.0%
2012	0.0%
2013	6.0%
2014	5.1%
2015	1.3%
2016	2.5%
2017	0.0%
2018	38.0%
2019	14.5%
2020	5.6%
2021	4.2%
2022	15.9%
2023	4.5%
2024	1.5%
2025	12.3%
2026	15.4%

The ten most extreme station summers

The most extreme hot and dry station summers, Sweden
Rank	Station	Country	Summer	Mean daily maximum vs 1961-1990	Rain, percent of 1961-1990 mean
1	Bjarka-Saby	Sweden	1955	+4.6 C (+8.2 F)	29%
2	Simlangsdalen	Sweden	1955	+4.8 C (+8.6 F)	45%
3	Ekefors	Sweden	1955	+4.2 C (+7.6 F)	34%
4	Oskarshamn	Sweden	2018	+4.6 C (+8.4 F)	66%
5	Holmogadd A	Sweden	1937	+2.8 C (+5.0 F)	12%
6	Jokkmokk	Sweden	1901	+5.0 C (+8.9 F)	44%
7	Karlshamn	Sweden	2018	+4.6 C (+8.2 F)	46%
8	Haparanda	Sweden	1937	+4.0 C (+7.1 F)	35%
9	Sodertalje	Sweden	1955	+3.8 C (+6.9 F)	21%
10	Falsterbo	Sweden	2018	+4.8 C (+8.6 F)	71%

Ranked by the temperature z score minus the rain z score against the station's own 1961-1990 mean and standard deviation (at least 0.3 C and 5 mm). A summer is labelled by the year of its first month.

Decade	Mean days per year
1960s	156.6
1970s	155.0
1980s	152.3
1990s	142.4
2000s	137.2
2010s	135.3
2020s (so far, 6 years)	125.3

Decade	Mean days per year
1960s	73.0
1970s	63.4
1980s	68.1
1990s	53.4
2000s	51.5
2010s	54.3
2020s (so far, 6 years)	43.8

Decade	Mean days per year
1960s	1.46
1970s	1.29
1980s	1.54
1990s	1.66
2000s	1.88
2010s	1.71
2020s	2.18

Decade	Mean days per year
1960s	0.08
1970s	0.08
1980s	0.10
1990s	0.09
2000s	0.16
2010s	0.08
2020s	0.15

Decade	Mean days per year
1960s	0.00
1970s	0.00
1980s	0.00
1990s	0.00
2000s	0.00
2010s	0.00
2020s	0.01

Decade	Mean longest dry spell, days
1960s	24.3 days
1970s	22.8 days
1980s	23.3 days
1990s	23.3 days
2000s	22.8 days
2010s	24.7 days
2020s	24.4 days

Decade	Mean cover days per season
1960s	165.5
1970s	164.9
1980s	161.7
1990s	156.4
2000s	140.9
2010s	129.9
2020s	115.2

Climate Trends in Sweden