Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Karvia Alkkia. The lines show the 2026 daily maximum and minimum. 6 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Karvia Alkkia, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
8.5 C (47.3 F)
-37.8 C (-36.0 F)
1.6 C (34.9 F)
-25.2 C (-13.4 F)
Feb
9.3 C (48.7 F)
-36.7 C (-34.1 F)
3.5 C (38.3 F)
-28.0 C (-18.4 F)
Mar
15.4 C (59.7 F)
-33.3 C (-27.9 F)
9.3 C (48.7 F)
-10.2 C (13.6 F)
Apr
23.5 C (74.3 F)
-20.6 C (-5.1 F)
17.3 C (63.1 F)
-8.1 C (17.4 F)
May
29.0 C (84.2 F)
-9.2 C (15.4 F)
24.0 C (75.2 F)
-7.4 C (18.7 F)
Jun
31.8 C (89.2 F)
-4.8 C (23.4 F)
27.4 C (81.3 F)
3.7 C (38.7 F)
Jul
32.8 C (91.0 F)
-1.1 C (30.0 F)
27.0 C (80.6 F)
3.1 C (37.6 F)
Aug
30.3 C (86.5 F)
-4.4 C (24.1 F)
23.6 C (74.5 F)
1.5 C (34.7 F)
Sep
26.6 C (79.9 F)
-9.6 C (14.7 F)
n/a
n/a
Oct
19.2 C (66.6 F)
-22.8 C (-9.0 F)
n/a
n/a
Nov
12.7 C (54.9 F)
-27.3 C (-17.1 F)
n/a
n/a
Dec
9.0 C (48.2 F)
-37.6 C (-35.7 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Karvia Alkkia still stand. 1987 holds the most, with 49.
Standing records at Karvia Alkkia by the year they were set
Year set
Standing records
1966
20
1967
19
1968
31
1969
15
1970
16
1971
32
1972
13
1973
34
1974
9
1975
35
1976
24
1977
40
1978
37
1979
17
1980
24
1981
34
1982
14
1983
23
1984
23
1985
20
1986
18
1987
49
1988
25
1989
27
1990
25
1991
19
1992
40
1993
19
1994
22
1995
22
1996
14
1997
23
1998
28
1999
27
2000
19
2001
30
2002
28
2003
21
2004
15
2005
19
2006
39
2007
30
2009
11
2010
27
2011
27
2012
18
2013
17
2014
31
2015
25
2016
15
2017
9
2018
33
2019
29
2020
39
2021
23
2022
28
2023
17
2024
31
2025
34
2026
11
All-Time Record Progression
7 new records
7 all-time records were set at Karvia Alkkia between 21 July 1999 and 29 July 2018. Each dot is a new record.
When Karvia Alkkia set new all-time records
Date
Kind
Detail
1999-07-21
Record daily precipitation
Record daily precipitation 74.0 mm (2.9 in)
2000-06-30
Record high minimum temperature
Record high minimum temperature 18.8 C (65.8 F)
2003-07-15
Record high maximum temperature
Record high maximum temperature 31.5 C (88.7 F)
2010-07-13
Record high maximum temperature
Record high maximum temperature 31.9 C (89.4 F)
2010-07-29
Record high maximum temperature
Record high maximum temperature 32.8 C (91.0 F)
2012-07-08
Record daily precipitation
Record daily precipitation 96.0 mm (3.8 in)
2018-07-29
Record high minimum temperature
Record high minimum temperature 19.7 C (67.5 F)
Wettest Day of Each Month
Jul: 96.0 mm (3.8 in)
The wettest day on record for each calendar month at Karvia Alkkia. The most was 96.0 mm (3.8 in) on 8 July 2012.
Record daily precipitation for each month at Karvia Alkkia
Month
Record daily precipitation (mm)
Date
Jan
21.2 mm (0.8 in)
17 January 1975
Feb
22.3 mm (0.9 in)
16 February 2024
Mar
19.0 mm (0.7 in)
26 March 1997
Apr
24.6 mm (1.0 in)
17 April 1988
May
31.0 mm (1.2 in)
14 May 2003
Jun
44.6 mm (1.8 in)
25 June 1988
Jul
96.0 mm (3.8 in)
8 July 2012
Aug
50.8 mm (2.0 in)
6 August 1967
Sep
40.6 mm (1.6 in)
14 September 2005
Oct
37.4 mm (1.5 in)
5 October 2012
Nov
32.8 mm (1.3 in)
18 November 2020
Dec
30.4 mm (1.2 in)
11 December 2006
Period of Record Coverage
1966 to 2026
Complete yearUnder 90 percent of days
61 years of record at Karvia Alkkia, 1966 to 2026. 3 years have data for under 90 percent of days and are left out of rankings: 1966, 2008, 2026.
Cooler than the station meanWarmer than the station mean
One stripe for each of 58 complete years at Karvia Alkkia, 1967 to 2025. Blue stripes are years cooler than the station's own mean of 3.4 C (38.1 F); red stripes are warmer. The coolest year was 1985, at 0.5 C (32.9 F), and the warmest was 2020, at 6.0 C (42.7 F). The strongest colour marks a difference of 2.9 C (5.2 F).
Annual mean temperature at Karvia Alkkia as warming stripes, 1967 to 2025
Year
Annual mean temperature
Difference from the station mean
1967
2.9 C
-0.48 C
1968
1.9 C
-1.49 C
1969
1.8 C
-1.60 C
1970
2.1 C
-1.30 C
1971
2.4 C
-0.95 C
1972
3.9 C
+0.55 C
1973
2.7 C
-0.69 C
1974
4.2 C
+0.79 C
1975
3.9 C
+0.53 C
1976
1.2 C
-2.22 C
1977
2.3 C
-1.10 C
1978
1.2 C
-2.20 C
1979
2.4 C
-0.93 C
1980
1.9 C
-1.43 C
1981
1.8 C
-1.54 C
1982
2.6 C
-0.75 C
1983
3.0 C
-0.40 C
1984
3.3 C
-0.10 C
1985
0.5 C
-2.89 C
1986
1.9 C
-1.49 C
1987
0.7 C
-2.67 C
1988
2.8 C
-0.54 C
1989
4.5 C
+1.16 C
1990
4.1 C
+0.73 C
1991
3.7 C
+0.30 C
1992
3.7 C
+0.32 C
1993
3.1 C
-0.31 C
1994
2.7 C
-0.67 C
1995
3.5 C
+0.17 C
1996
2.6 C
-0.79 C
1997
3.6 C
+0.24 C
1998
2.8 C
-0.61 C
1999
3.5 C
+0.13 C
2000
4.8 C
+1.42 C
2001
3.1 C
-0.26 C
2002
3.5 C
+0.08 C
2003
3.5 C
+0.14 C
2004
4.0 C
+0.66 C
2005
4.3 C
+0.91 C
2006
4.5 C
+1.16 C
2007
4.3 C
+0.92 C
2009
3.5 C
+0.15 C
2010
2.2 C
-1.16 C
2011
4.8 C
+1.44 C
2012
3.1 C
-0.26 C
2013
4.5 C
+1.15 C
2014
5.0 C
+1.66 C
2015
5.3 C
+1.93 C
2016
4.1 C
+0.73 C
2017
4.1 C
+0.71 C
2018
4.4 C
+1.03 C
2019
4.5 C
+1.11 C
2020
6.0 C
+2.59 C
2021
3.9 C
+0.54 C
2022
4.5 C
+1.17 C
2023
4.0 C
+0.58 C
2024
4.8 C
+1.41 C
2025
5.7 C
+2.32 C
The annual mean temperature here has risen by 0.5 C (0.3 to 0.6) per decade over 1967 to 2025. In Fahrenheit: 0.9 F (0.6 to 1.1) per decade. The slope is a straight line fitted to 58 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Karvia Alkkia
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.5 C (0.3 to 0.6) per decade
0.9 F (0.6 to 1.1) per decade
1967 to 2025
58
Rise
Mean daily maximum
0.4 C (0.3 to 0.6) per decade
0.8 F (0.6 to 1.0) per decade
1967 to 2025
58
Rise
Mean daily minimum
0.5 C (0.4 to 0.7) per decade
0.9 F (0.7 to 1.2) per decade
1967 to 2025
58
Rise
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
1966 to 2026
Yearly extremes at Karvia Alkkia: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
32.8 C (91.0 F)
2010
28.6 C (83.5 F)
61
Coldest night (TNn)
-37.8 C (-36.0 F)
1987
-28.9 C (-20.0 F)
61
Wettest day (Rx1day)
96.0 mm (3.8 in)
2012
28.5 mm (1.1 in)
61
Wettest five days (Rx5day)
162.0 mm (6.4 in)
2012
54.0 mm (2.1 in)
61
Longest dry spell (CDD)
46 days
1983
21 days
61
Hottest day (TXx)
The hottest day of the year at Karvia Alkkia, 1966 to 2026. The record is 32.8 C (91.0 F) in 2010, marked on the chart; the median year is 28.6 C (83.5 F).
Hottest day (TXx) at Karvia Alkkia by year
Year
Hottest day (TXx)
1966
29.0 C (84.2 F)
1967
28.2 C (82.8 F)
1968
28.4 C (83.1 F)
1969
29.1 C (84.4 F)
1970
28.3 C (82.9 F)
1971
28.3 C (82.9 F)
1972
30.8 C (87.4 F)
1973
30.1 C (86.2 F)
1974
27.2 C (81.0 F)
1975
27.8 C (82.0 F)
1976
25.1 C (77.2 F)
1977
30.2 C (86.4 F)
1978
26.5 C (79.7 F)
1979
27.6 C (81.7 F)
1980
29.0 C (84.2 F)
1981
26.9 C (80.4 F)
1982
27.7 C (81.9 F)
1983
27.7 C (81.9 F)
1984
26.8 C (80.2 F)
1985
26.9 C (80.4 F)
1986
29.0 C (84.2 F)
1987
26.1 C (79.0 F)
1988
30.0 C (86.0 F)
1989
27.1 C (80.8 F)
1990
25.8 C (78.4 F)
1991
27.0 C (80.6 F)
1992
29.1 C (84.4 F)
1993
26.8 C (80.2 F)
1994
31.0 C (87.8 F)
1995
29.2 C (84.6 F)
1996
25.9 C (78.6 F)
1997
30.2 C (86.4 F)
1998
28.6 C (83.5 F)
1999
30.0 C (86.0 F)
2000
30.0 C (86.0 F)
2001
29.5 C (85.1 F)
2002
28.0 C (82.4 F)
2003
31.5 C (88.7 F)
2004
27.5 C (81.5 F)
2005
28.5 C (83.3 F)
2006
30.0 C (86.0 F)
2007
29.0 C (84.2 F)
2008
3.2 C (37.8 F)
2009
28.9 C (84.0 F)
2010
32.8 C (91.0 F)
2011
31.0 C (87.8 F)
2012
26.9 C (80.4 F)
2013
28.1 C (82.6 F)
2014
30.8 C (87.4 F)
2015
26.9 C (80.4 F)
2016
27.0 C (80.6 F)
2017
24.4 C (75.9 F)
2018
31.8 C (89.2 F)
2019
31.8 C (89.2 F)
2020
31.8 C (89.2 F)
2021
31.2 C (88.2 F)
2022
31.2 C (88.2 F)
2023
30.4 C (86.7 F)
2024
29.3 C (84.7 F)
2025
31.2 C (88.2 F)
2026
27.4 C (81.3 F)
Coldest night (TNn)
The coldest night of the year at Karvia Alkkia, 1966 to 2026. The record is -37.8 C (-36.0 F) in 1987, marked on the chart; the median year is -28.9 C (-20.0 F).
Coldest night (TNn) at Karvia Alkkia by year
Year
Coldest night (TNn)
1966
-24.9 C (-12.8 F)
1967
-35.9 C (-32.6 F)
1968
-35.6 C (-32.1 F)
1969
-30.3 C (-22.5 F)
1970
-30.9 C (-23.6 F)
1971
-26.7 C (-16.1 F)
1972
-26.7 C (-16.1 F)
1973
-32.2 C (-26.0 F)
1974
-17.3 C (0.9 F)
1975
-28.5 C (-19.3 F)
1976
-29.5 C (-21.1 F)
1977
-32.4 C (-26.3 F)
1978
-37.6 C (-35.7 F)
1979
-36.7 C (-34.1 F)
1980
-33.9 C (-29.0 F)
1981
-33.3 C (-27.9 F)
1982
-33.9 C (-29.0 F)
1983
-28.6 C (-19.5 F)
1984
-30.0 C (-22.0 F)
1985
-35.0 C (-31.0 F)
1986
-33.5 C (-28.3 F)
1987
-37.8 C (-36.0 F)
1988
-33.0 C (-27.4 F)
1989
-28.8 C (-19.8 F)
1990
-27.3 C (-17.1 F)
1991
-24.4 C (-11.9 F)
1992
-26.1 C (-15.0 F)
1993
-28.3 C (-18.9 F)
1994
-33.0 C (-27.4 F)
1995
-28.6 C (-19.5 F)
1996
-31.2 C (-24.2 F)
1997
-28.0 C (-18.4 F)
1998
-30.8 C (-23.4 F)
1999
-34.0 C (-29.2 F)
2000
-24.9 C (-12.8 F)
2001
-32.9 C (-27.2 F)
2002
-31.0 C (-23.8 F)
2003
-34.8 C (-30.6 F)
2004
-27.9 C (-18.2 F)
2005
-29.0 C (-20.2 F)
2006
-28.5 C (-19.3 F)
2007
-34.7 C (-30.5 F)
2008
-10.3 C (13.5 F)
2009
-23.3 C (-9.9 F)
2010
-28.4 C (-19.1 F)
2011
-33.4 C (-28.1 F)
2012
-30.8 C (-23.4 F)
2013
-26.7 C (-16.1 F)
2014
-24.3 C (-11.7 F)
2015
-21.4 C (-6.5 F)
2016
-30.9 C (-23.6 F)
2017
-24.9 C (-12.8 F)
2018
-27.6 C (-17.7 F)
2019
-24.7 C (-12.5 F)
2020
-16.7 C (1.9 F)
2021
-28.9 C (-20.0 F)
2022
-24.4 C (-11.9 F)
2023
-25.3 C (-13.5 F)
2024
-29.0 C (-20.2 F)
2025
-20.2 C (-4.4 F)
2026
-28.0 C (-18.4 F)
Wettest day (Rx1day)
The wettest day of the year at Karvia Alkkia, 1966 to 2026. The record is 96.0 mm (3.8 in) in 2012, marked on the chart; the median year is 28.5 mm (1.1 in).
Wettest day (Rx1day) at Karvia Alkkia by year
Year
Wettest day (Rx1day)
1966
28.3 mm (1.1 in)
1967
50.8 mm (2.0 in)
1968
34.3 mm (1.4 in)
1969
17.8 mm (0.7 in)
1970
19.8 mm (0.8 in)
1971
25.6 mm (1.0 in)
1972
30.6 mm (1.2 in)
1973
20.8 mm (0.8 in)
1974
29.1 mm (1.1 in)
1975
23.4 mm (0.9 in)
1976
24.4 mm (1.0 in)
1977
25.5 mm (1.0 in)
1978
22.6 mm (0.9 in)
1979
31.1 mm (1.2 in)
1980
40.0 mm (1.6 in)
1981
36.4 mm (1.4 in)
1982
23.0 mm (0.9 in)
1983
21.0 mm (0.8 in)
1984
21.4 mm (0.8 in)
1985
24.5 mm (1.0 in)
1986
26.5 mm (1.0 in)
1987
36.4 mm (1.4 in)
1988
44.6 mm (1.8 in)
1989
38.1 mm (1.5 in)
1990
32.2 mm (1.3 in)
1991
28.4 mm (1.1 in)
1992
37.0 mm (1.5 in)
1993
35.4 mm (1.4 in)
1994
28.3 mm (1.1 in)
1995
22.0 mm (0.9 in)
1996
19.8 mm (0.8 in)
1997
24.4 mm (1.0 in)
1998
20.5 mm (0.8 in)
1999
74.0 mm (2.9 in)
2000
30.5 mm (1.2 in)
2001
27.8 mm (1.1 in)
2002
29.2 mm (1.1 in)
2003
41.3 mm (1.6 in)
2004
24.1 mm (0.9 in)
2005
40.6 mm (1.6 in)
2006
30.4 mm (1.2 in)
2007
28.6 mm (1.1 in)
2008
5.7 mm (0.22 in)
2009
19.9 mm (0.8 in)
2010
29.7 mm (1.2 in)
2011
27.5 mm (1.1 in)
2012
96.0 mm (3.8 in)
2013
33.0 mm (1.3 in)
2014
26.2 mm (1.0 in)
2015
28.5 mm (1.1 in)
2016
31.8 mm (1.3 in)
2017
32.1 mm (1.3 in)
2018
23.8 mm (0.9 in)
2019
19.8 mm (0.8 in)
2020
35.3 mm (1.4 in)
2021
23.8 mm (0.9 in)
2022
39.9 mm (1.6 in)
2023
42.1 mm (1.7 in)
2024
32.1 mm (1.3 in)
2025
25.1 mm (1.0 in)
2026
33.6 mm (1.3 in)
Wettest five days (Rx5day)
The wettest five days of the year at Karvia Alkkia, 1966 to 2026. The record is 162.0 mm (6.4 in) in 2012, marked on the chart; the median year is 54.0 mm (2.1 in).
Wettest five days (Rx5day) at Karvia Alkkia by year
Year
Wettest five days (Rx5day)
1966
65.0 mm (2.6 in)
1967
76.9 mm (3.0 in)
1968
50.9 mm (2.0 in)
1969
36.7 mm (1.4 in)
1970
31.2 mm (1.2 in)
1971
46.9 mm (1.8 in)
1972
63.2 mm (2.5 in)
1973
49.1 mm (1.9 in)
1974
56.1 mm (2.2 in)
1975
37.0 mm (1.5 in)
1976
47.8 mm (1.9 in)
1977
60.3 mm (2.4 in)
1978
38.7 mm (1.5 in)
1979
53.3 mm (2.1 in)
1980
48.1 mm (1.9 in)
1981
56.6 mm (2.2 in)
1982
60.3 mm (2.4 in)
1983
32.9 mm (1.3 in)
1984
64.7 mm (2.5 in)
1985
51.4 mm (2.0 in)
1986
45.3 mm (1.8 in)
1987
59.2 mm (2.3 in)
1988
61.7 mm (2.4 in)
1989
70.4 mm (2.8 in)
1990
54.0 mm (2.1 in)
1991
61.0 mm (2.4 in)
1992
55.3 mm (2.2 in)
1993
66.9 mm (2.6 in)
1994
64.5 mm (2.5 in)
1995
63.8 mm (2.5 in)
1996
46.6 mm (1.8 in)
1997
54.3 mm (2.1 in)
1998
47.0 mm (1.9 in)
1999
86.9 mm (3.4 in)
2000
47.6 mm (1.9 in)
2001
70.0 mm (2.8 in)
2002
54.0 mm (2.1 in)
2003
52.2 mm (2.1 in)
2004
39.2 mm (1.5 in)
2005
61.2 mm (2.4 in)
2006
62.0 mm (2.4 in)
2007
53.3 mm (2.1 in)
2008
15.8 mm (0.6 in)
2009
27.8 mm (1.1 in)
2010
41.3 mm (1.6 in)
2011
60.2 mm (2.4 in)
2012
162.0 mm (6.4 in)
2013
60.0 mm (2.4 in)
2014
58.1 mm (2.3 in)
2015
52.3 mm (2.1 in)
2016
54.4 mm (2.1 in)
2017
40.2 mm (1.6 in)
2018
46.7 mm (1.8 in)
2019
44.7 mm (1.8 in)
2020
63.8 mm (2.5 in)
2021
65.1 mm (2.6 in)
2022
47.0 mm (1.9 in)
2023
68.9 mm (2.7 in)
2024
52.7 mm (2.1 in)
2025
48.6 mm (1.9 in)
2026
78.5 mm (3.1 in)
Longest dry spell (CDD)
The longest dry spell of the year at Karvia Alkkia, 1966 to 2026. The record is 46 days in 1983, marked on the chart; the median year is 21 days.
Longest dry spell (CDD) at Karvia Alkkia by year
Year
Longest dry spell (CDD)
1966
18 days
1967
18 days
1968
17 days
1969
39 days
1970
29 days
1971
31 days
1972
36 days
1973
16 days
1974
24 days
1975
16 days
1976
15 days
1977
16 days
1978
30 days
1979
20 days
1980
30 days
1981
23 days
1982
24 days
1983
46 days
1984
19 days
1985
18 days
1986
17 days
1987
25 days
1988
15 days
1989
14 days
1990
18 days
1991
22 days
1992
20 days
1993
34 days
1994
37 days
1995
17 days
1996
26 days
1997
26 days
1998
14 days
1999
18 days
2000
19 days
2001
19 days
2002
40 days
2003
23 days
2004
19 days
2005
25 days
2006
24 days
2007
21 days
2008
9 days
2009
19 days
2010
16 days
2011
25 days
2012
22 days
2013
25 days
2014
28 days
2015
20 days
2016
27 days
2017
17 days
2018
33 days
2019
23 days
2020
22 days
2021
17 days
2022
17 days
2023
29 days
2024
19 days
2025
16 days
2026
25 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
58 years with a frost
Across 58 years with a frost, the median last spring frost at Karvia Alkkia falls on 6 June and the median first autumn frost on 5 September, which leaves a median of 89 days between them.
Fitted over all years, the growing season changes by +8.5 days per decade at this station.
Frost dates and growing season at Karvia Alkkia
Measure
Median, all years
Earliest period
Recent period (1995 to 2025)
Recent against earliest
Fitted trend
Last spring frost
6 June
n/a
1 June
n/a
-2.4 days per decade
First autumn frost
5 September
n/a
10 September
n/a
+6.2 days per decade
Growing days
89 days
n/a
98 days
n/a
+8.5 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, 1967 to 2025
A day with at least 27.9 mm (1.1 in) of rain is expected about once in 2 years. A day with at least 80.1 mm (3.2 in) of rain is expected about once in 100 years.
Rainfall return levels at Karvia Alkkia: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
27.9 mm (1.1 in)
5 years
36.9 mm (1.5 in)
10 years
44.4 mm (1.7 in)
25 years
56.3 mm (2.2 in)
50 years
67.2 mm (2.6 in)
100 years
80.1 mm (3.2 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 1967 to 2025.
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: 96.0 mm (3.8 in) in 2012; 74.0 mm (2.9 in) in 1999; 50.8 mm (2.0 in) in 1967.
Station Changes
2 suspected
2 changes were suspected in the annual mean temperature of Karvia Alkkia, at 1973 and 1990. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1973 ran 0.3 C (0.5 F) lower than in the years before (possible change).
Relative to 5 neighbouring stations, the station's annual mean temperature from 1990 ran 0.2 C (0.3 F) higher than in the years before (likely change).
Suspected changes in the annual mean temperature at Karvia Alkkia, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1973
-0.3
-0.5
possible
5
1990
+0.2
+0.3
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.
Climate Twins
2011 to 2025 against 1961 to 1990
Over 2011 to 2025, Karvia Alkkia had a mean temperature of 4.6 C (40.2 F) and 666.8 mm (26.3 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Hudiksvall (Sweden, 302 km away), Turku Turun Lentoasema (Finland, 188 km away) and Mietoinen Saari (Finland, 180 km away).
Climate twins of Karvia Alkkia: stations whose 1961 to 1990 climate is closest to its 2011 to 2025 climate
Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.
Download the Data
Data for Karvia Alkkia standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Karvia Alkkia 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.