Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Janiskoski. 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 Janiskoski, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
5.8 C (42.4 F)
-46.1 C (-51.0 F)
n/a
n/a
Feb
6.7 C (44.1 F)
-45.5 C (-49.9 F)
n/a
n/a
Mar
9.8 C (49.6 F)
-38.5 C (-37.3 F)
n/a
n/a
Apr
18.2 C (64.8 F)
-29.9 C (-21.8 F)
n/a
n/a
May
29.6 C (85.3 F)
-19.9 C (-3.8 F)
n/a
n/a
Jun
31.9 C (89.4 F)
-3.5 C (25.7 F)
n/a
n/a
Jul
34.9 C (94.8 F)
-1.5 C (29.3 F)
n/a
n/a
Aug
30.9 C (87.6 F)
-5.1 C (22.8 F)
n/a
n/a
Sep
23.4 C (74.1 F)
-9.8 C (14.4 F)
n/a
n/a
Oct
14.2 C (57.6 F)
-22.5 C (-8.5 F)
n/a
n/a
Nov
9.1 C (48.4 F)
-35.5 C (-31.9 F)
n/a
n/a
Dec
6.3 C (43.3 F)
-42.8 C (-45.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Janiskoski still stand. 1992 holds the most, with 60.
Standing records at Janiskoski by the year they were set
Year set
Standing records
1959
12
1960
38
1961
21
1962
26
1963
40
1964
25
1965
20
1966
51
1969
9
1970
26
1971
36
1972
47
1973
35
1974
27
1975
20
1976
30
1977
24
1978
29
1979
24
1980
24
1981
30
1982
21
1983
15
1984
29
1985
17
1986
27
1987
28
1988
21
1989
20
1990
27
1991
12
1992
60
1993
15
1994
18
1995
15
1996
22
1997
20
1998
32
1999
33
2000
16
2001
29
2002
17
2003
33
2004
22
2005
31
2006
28
2007
33
2008
22
2009
11
2010
15
2011
16
2012
13
2013
32
2014
31
2015
21
2016
20
2017
16
2018
27
2019
5
All-Time Record Progression
3 new records
3 all-time records were set at Janiskoski between 27 January 1999 and 19 July 2000. Each dot is a new record.
When Janiskoski set new all-time records
Date
Kind
Detail
1999-01-27
Record low maximum temperature
Record low maximum temperature -43.5 C (-46.3 F)
1999-01-27
Record low minimum temperature
Record low minimum temperature -46.1 C (-51.0 F)
2000-07-19
Record high maximum temperature
Record high maximum temperature 34.9 C (94.8 F)
Wettest Day of Each Month
Jul: 74.1 mm (2.9 in)
The wettest day on record for each calendar month at Janiskoski. The most was 74.1 mm (2.9 in) on 23 July 1988.
Record daily precipitation for each month at Janiskoski
Month
Record daily precipitation (mm)
Date
Jan
21.7 mm (0.9 in)
31 January 2000
Feb
17.7 mm (0.7 in)
28 February 1978
Mar
18.5 mm (0.7 in)
20 March 1965
Apr
22.5 mm (0.9 in)
9 April 2001
May
29.6 mm (1.2 in)
22 May 1975
Jun
45.3 mm (1.8 in)
22 June 1992
Jul
74.1 mm (2.9 in)
23 July 1988
Aug
48.1 mm (1.9 in)
12 August 1992
Sep
37.5 mm (1.5 in)
12 September 1971
Oct
29.7 mm (1.2 in)
14 October 1993
Nov
18.7 mm (0.7 in)
22 November 1963
Dec
13.0 mm (0.5 in)
28 December 1974
Period of Record Coverage
1959 to 2019
Complete yearUnder 90 percent of days
59 years of record at Janiskoski, 1959 to 2019. 11 years have data for under 90 percent of days and are left out of rankings: 1959, 1965, 1966, 1969, 1972, 1973, 1977, 1989 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 45 complete years at Janiskoski, 1960 to 2018. Blue stripes are years cooler than the station's own mean of -0.8 C (30.5 F); red stripes are warmer. The coolest year was 1971, at -3.1 C (26.5 F), and the warmest was 2016, at 1.0 C (33.8 F). The strongest colour marks a difference of 2.3 C (4.1 F).
Annual mean temperature at Janiskoski as warming stripes, 1960 to 2018
Year
Annual mean temperature
Difference from the station mean
1960
-0.3 C
+0.47 C
1961
-0.1 C
+0.75 C
1962
-1.4 C
-0.60 C
1963
-0.8 C
+0.05 C
1970
-1.4 C
-0.56 C
1971
-3.1 C
-2.24 C
1975
-0.4 C
+0.39 C
1976
-2.1 C
-1.28 C
1978
-2.6 C
-1.80 C
1979
-1.5 C
-0.67 C
1980
-2.3 C
-1.52 C
1982
-1.0 C
-0.19 C
1983
-1.3 C
-0.47 C
1984
-0.6 C
+0.22 C
1985
-3.0 C
-2.19 C
1986
-1.2 C
-0.43 C
1987
-2.5 C
-1.72 C
1988
-1.7 C
-0.87 C
1990
0.3 C
+1.14 C
1992
0.2 C
+1.01 C
1993
-0.8 C
-0.02 C
1994
-0.6 C
+0.23 C
1995
-1.1 C
-0.26 C
1996
-0.8 C
+0.04 C
1997
-0.9 C
-0.10 C
1998
-3.0 C
-2.14 C
1999
-1.2 C
-0.39 C
2000
0.3 C
+1.13 C
2001
-1.0 C
-0.16 C
2002
-1.0 C
-0.17 C
2003
0.0 C
+0.84 C
2004
0.2 C
+0.99 C
2005
0.7 C
+1.50 C
2006
0.1 C
+0.93 C
2007
0.1 C
+0.92 C
2008
-0.3 C
+0.48 C
2009
-0.3 C
+0.49 C
2010
-1.5 C
-0.69 C
2011
0.9 C
+1.75 C
2012
-1.1 C
-0.30 C
2013
0.6 C
+1.37 C
2014
0.3 C
+1.07 C
2016
1.0 C
+1.80 C
2017
-0.7 C
+0.16 C
2018
0.3 C
+1.15 C
The annual mean temperature here has risen by 0.3 C (0.1 to 0.5) per decade over 1960 to 2018. In Fahrenheit: 0.5 F (0.2 to 0.9) per decade. The slope is a straight line fitted to 45 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Janiskoski
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.3 C (0.1 to 0.5) per decade
0.5 F (0.2 to 0.9) per decade
1960 to 2018
45
Rise
Mean daily maximum
0.3 C (0.2 to 0.5) per decade
0.6 F (0.3 to 0.9) per decade
1960 to 2018
45
Rise
Mean daily minimum
0.3 C (0.1 to 0.5) per decade
0.5 F (0.2 to 0.9) per decade
1960 to 2018
45
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
1959 to 2019
Yearly extremes at Janiskoski: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
34.9 C (94.8 F)
2000
28.0 C (82.4 F)
59
Coldest night (TNn)
-46.1 C (-51.0 F)
1999
-37.5 C (-35.5 F)
59
Wettest day (Rx1day)
74.1 mm (2.9 in)
1988
27.7 mm (1.1 in)
59
Wettest five days (Rx5day)
102.3 mm (4.0 in)
1988
46.9 mm (1.8 in)
59
Longest dry spell (CDD)
31 days
1978
19 days
59
Hottest day (TXx)
The hottest day of the year at Janiskoski, 1959 to 2019. The record is 34.9 C (94.8 F) in 2000, marked on the chart; the median year is 28.0 C (82.4 F).
Hottest day (TXx) at Janiskoski by year
Year
Hottest day (TXx)
1959
28.6 C (83.5 F)
1960
31.5 C (88.7 F)
1961
30.5 C (86.9 F)
1962
22.6 C (72.7 F)
1963
30.6 C (87.1 F)
1964
28.5 C (83.3 F)
1965
24.4 C (75.9 F)
1966
30.5 C (86.9 F)
1969
27.1 C (80.8 F)
1970
30.4 C (86.7 F)
1971
27.2 C (81.0 F)
1972
32.6 C (90.7 F)
1973
28.5 C (83.3 F)
1974
31.9 C (89.4 F)
1975
27.9 C (82.2 F)
1976
25.6 C (78.1 F)
1977
27.5 C (81.5 F)
1978
25.6 C (78.1 F)
1979
26.4 C (79.5 F)
1980
28.4 C (83.1 F)
1981
23.3 C (73.9 F)
1982
27.9 C (82.2 F)
1983
26.0 C (78.8 F)
1984
27.1 C (80.8 F)
1985
26.6 C (79.9 F)
1986
28.0 C (82.4 F)
1987
28.5 C (83.3 F)
1988
31.9 C (89.4 F)
1989
29.6 C (85.3 F)
1990
28.1 C (82.6 F)
1991
22.1 C (71.8 F)
1992
28.6 C (83.5 F)
1993
26.0 C (78.8 F)
1994
28.1 C (82.6 F)
1995
25.0 C (77.0 F)
1996
26.2 C (79.2 F)
1997
31.7 C (89.1 F)
1998
27.4 C (81.3 F)
1999
28.7 C (83.7 F)
2000
34.9 C (94.8 F)
2001
30.0 C (86.0 F)
2002
25.6 C (78.1 F)
2003
29.8 C (85.6 F)
2004
27.6 C (81.7 F)
2005
29.9 C (85.8 F)
2006
27.4 C (81.3 F)
2007
29.5 C (85.1 F)
2008
25.2 C (77.4 F)
2009
27.7 C (81.9 F)
2010
27.0 C (80.6 F)
2011
31.2 C (88.2 F)
2012
26.1 C (79.0 F)
2013
30.0 C (86.0 F)
2014
30.5 C (86.9 F)
2015
25.2 C (77.4 F)
2016
28.5 C (83.3 F)
2017
26.4 C (79.5 F)
2018
32.2 C (90.0 F)
2019
28.0 C (82.4 F)
Coldest night (TNn)
The coldest night of the year at Janiskoski, 1959 to 2019. The record is -46.1 C (-51.0 F) in 1999, marked on the chart; the median year is -37.5 C (-35.5 F).
Coldest night (TNn) at Janiskoski by year
Year
Coldest night (TNn)
1959
-28.1 C (-18.6 F)
1960
-38.3 C (-36.9 F)
1961
-42.8 C (-45.0 F)
1962
-38.1 C (-36.6 F)
1963
-38.9 C (-38.0 F)
1964
-35.3 C (-31.5 F)
1965
-34.8 C (-30.6 F)
1966
-45.5 C (-49.9 F)
1969
-29.6 C (-21.3 F)
1970
-39.2 C (-38.6 F)
1971
-41.2 C (-42.2 F)
1972
-32.8 C (-27.0 F)
1973
-36.3 C (-33.3 F)
1974
-34.7 C (-30.5 F)
1975
-36.9 C (-34.4 F)
1976
-40.8 C (-41.4 F)
1977
-37.2 C (-35.0 F)
1978
-39.7 C (-39.5 F)
1979
-36.7 C (-34.1 F)
1980
-41.8 C (-43.2 F)
1981
-39.0 C (-38.2 F)
1982
-34.0 C (-29.2 F)
1983
-35.7 C (-32.3 F)
1984
-35.0 C (-31.0 F)
1985
-41.8 C (-43.2 F)
1986
-38.0 C (-36.4 F)
1987
-39.6 C (-39.3 F)
1988
-38.0 C (-36.4 F)
1989
-34.4 C (-29.9 F)
1990
-38.0 C (-36.4 F)
1991
-33.5 C (-28.3 F)
1992
-32.3 C (-26.1 F)
1993
-33.0 C (-27.4 F)
1994
-38.2 C (-36.8 F)
1995
-40.2 C (-40.4 F)
1996
-33.8 C (-28.8 F)
1997
-36.3 C (-33.3 F)
1998
-41.9 C (-43.4 F)
1999
-46.1 C (-51.0 F)
2000
-33.9 C (-29.0 F)
2001
-38.9 C (-38.0 F)
2002
-36.4 C (-33.5 F)
2003
-37.6 C (-35.7 F)
2004
-34.2 C (-29.6 F)
2005
-34.2 C (-29.6 F)
2006
-37.0 C (-34.6 F)
2007
-38.1 C (-36.6 F)
2008
-30.7 C (-23.3 F)
2009
-36.9 C (-34.4 F)
2010
-36.1 C (-33.0 F)
2011
-38.5 C (-37.3 F)
2012
-40.1 C (-40.2 F)
2013
-35.0 C (-31.0 F)
2014
-37.5 C (-35.5 F)
2015
-37.6 C (-35.7 F)
2016
-37.5 C (-35.5 F)
2017
-38.5 C (-37.3 F)
2018
-37.5 C (-35.5 F)
2019
-37.6 C (-35.7 F)
Wettest day (Rx1day)
The wettest day of the year at Janiskoski, 1959 to 2019. The record is 74.1 mm (2.9 in) in 1988, marked on the chart; the median year is 27.7 mm (1.1 in).
Wettest day (Rx1day) at Janiskoski by year
Year
Wettest day (Rx1day)
1959
30.2 mm (1.2 in)
1960
11.1 mm (0.4 in)
1961
20.2 mm (0.8 in)
1962
27.7 mm (1.1 in)
1963
34.2 mm (1.3 in)
1964
40.0 mm (1.6 in)
1965
31.2 mm (1.2 in)
1966
22.5 mm (0.9 in)
1969
37.0 mm (1.5 in)
1970
29.6 mm (1.2 in)
1971
37.5 mm (1.5 in)
1972
17.5 mm (0.7 in)
1973
28.0 mm (1.1 in)
1974
31.5 mm (1.2 in)
1975
40.0 mm (1.6 in)
1976
38.8 mm (1.5 in)
1977
29.6 mm (1.2 in)
1978
17.7 mm (0.7 in)
1979
25.4 mm (1.0 in)
1980
19.3 mm (0.8 in)
1981
21.1 mm (0.8 in)
1982
24.7 mm (1.0 in)
1983
20.3 mm (0.8 in)
1984
26.3 mm (1.0 in)
1985
16.6 mm (0.7 in)
1986
37.2 mm (1.5 in)
1987
26.4 mm (1.0 in)
1988
74.1 mm (2.9 in)
1989
28.0 mm (1.1 in)
1990
32.5 mm (1.3 in)
1991
23.3 mm (0.9 in)
1992
48.1 mm (1.9 in)
1993
29.7 mm (1.2 in)
1994
21.8 mm (0.9 in)
1995
33.8 mm (1.3 in)
1996
18.9 mm (0.7 in)
1997
43.3 mm (1.7 in)
1998
28.9 mm (1.1 in)
1999
42.9 mm (1.7 in)
2000
21.7 mm (0.9 in)
2001
25.9 mm (1.0 in)
2002
26.6 mm (1.0 in)
2003
23.2 mm (0.9 in)
2004
23.9 mm (0.9 in)
2005
23.1 mm (0.9 in)
2006
19.6 mm (0.8 in)
2007
25.3 mm (1.0 in)
2008
30.7 mm (1.2 in)
2009
21.8 mm (0.9 in)
2010
31.7 mm (1.2 in)
2011
50.7 mm (2.0 in)
2012
29.1 mm (1.1 in)
2013
14.7 mm (0.6 in)
2014
15.0 mm (0.6 in)
2015
29.9 mm (1.2 in)
2016
30.5 mm (1.2 in)
2017
20.3 mm (0.8 in)
2018
49.9 mm (2.0 in)
2019
27.3 mm (1.1 in)
Wettest five days (Rx5day)
The wettest five days of the year at Janiskoski, 1959 to 2019. The record is 102.3 mm (4.0 in) in 1988, marked on the chart; the median year is 46.9 mm (1.8 in).
Wettest five days (Rx5day) at Janiskoski by year
Year
Wettest five days (Rx5day)
1959
62.9 mm (2.5 in)
1960
27.6 mm (1.1 in)
1961
41.2 mm (1.6 in)
1962
43.8 mm (1.7 in)
1963
46.9 mm (1.8 in)
1964
61.4 mm (2.4 in)
1965
76.5 mm (3.0 in)
1966
49.5 mm (1.9 in)
1969
49.0 mm (1.9 in)
1970
37.0 mm (1.5 in)
1971
66.6 mm (2.6 in)
1972
28.4 mm (1.1 in)
1973
66.0 mm (2.6 in)
1974
87.8 mm (3.5 in)
1975
61.4 mm (2.4 in)
1976
48.8 mm (1.9 in)
1977
59.3 mm (2.3 in)
1978
40.8 mm (1.6 in)
1979
39.3 mm (1.5 in)
1980
42.8 mm (1.7 in)
1981
35.5 mm (1.4 in)
1982
51.0 mm (2.0 in)
1983
35.5 mm (1.4 in)
1984
48.5 mm (1.9 in)
1985
38.5 mm (1.5 in)
1986
91.8 mm (3.6 in)
1987
66.9 mm (2.6 in)
1988
102.3 mm (4.0 in)
1989
40.3 mm (1.6 in)
1990
60.9 mm (2.4 in)
1991
45.9 mm (1.8 in)
1992
79.1 mm (3.1 in)
1993
46.1 mm (1.8 in)
1994
42.1 mm (1.7 in)
1995
51.6 mm (2.0 in)
1996
40.4 mm (1.6 in)
1997
44.4 mm (1.7 in)
1998
52.7 mm (2.1 in)
1999
94.3 mm (3.7 in)
2000
41.2 mm (1.6 in)
2001
53.3 mm (2.1 in)
2002
38.1 mm (1.5 in)
2003
38.5 mm (1.5 in)
2004
44.5 mm (1.8 in)
2005
59.3 mm (2.3 in)
2006
31.2 mm (1.2 in)
2007
40.5 mm (1.6 in)
2008
36.2 mm (1.4 in)
2009
52.8 mm (2.1 in)
2010
58.0 mm (2.3 in)
2011
65.8 mm (2.6 in)
2012
46.7 mm (1.8 in)
2013
24.1 mm (0.9 in)
2014
43.6 mm (1.7 in)
2015
40.7 mm (1.6 in)
2016
54.3 mm (2.1 in)
2017
45.3 mm (1.8 in)
2018
72.9 mm (2.9 in)
2019
58.3 mm (2.3 in)
Longest dry spell (CDD)
The longest dry spell of the year at Janiskoski, 1959 to 2019. The record is 31 days in 1978, marked on the chart; the median year is 19 days.
Longest dry spell (CDD) at Janiskoski by year
Year
Longest dry spell (CDD)
1959
16 days
1960
19 days
1961
14 days
1962
21 days
1963
18 days
1964
24 days
1965
15 days
1966
10 days
1969
21 days
1970
18 days
1971
22 days
1972
28 days
1973
13 days
1974
21 days
1975
13 days
1976
23 days
1977
15 days
1978
31 days
1979
17 days
1980
18 days
1981
21 days
1982
17 days
1983
15 days
1984
20 days
1985
20 days
1986
23 days
1987
21 days
1988
16 days
1989
14 days
1990
21 days
1991
18 days
1992
15 days
1993
27 days
1994
16 days
1995
22 days
1996
24 days
1997
22 days
1998
16 days
1999
13 days
2000
13 days
2001
16 days
2002
22 days
2003
13 days
2004
14 days
2005
17 days
2006
20 days
2007
12 days
2008
17 days
2009
15 days
2010
19 days
2011
16 days
2012
27 days
2013
19 days
2014
31 days
2015
19 days
2016
23 days
2017
19 days
2018
25 days
2019
26 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
45 years with a frost
Across 45 years with a frost, the median last spring frost at Janiskoski falls on 1 June and the median first autumn frost on 17 August, which leaves a median of 78 days between them.
Fitted over all years, the growing season changes by -0.3 days per decade at this station.
Frost dates and growing season at Janiskoski
Measure
Median, all years
Earliest period
Recent period (1986 to 2018)
Recent against earliest
Fitted trend
Last spring frost
1 June
n/a
1 June
n/a
-0.1 days per decade
First autumn frost
17 August
n/a
17 August
n/a
-0.4 days per decade
Growing days
78 days
n/a
75 days
n/a
-0.3 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, 1960 to 2018
A day with at least 26.7 mm (1.1 in) of rain is expected about once in 2 years. A day with at least 67.6 mm (2.7 in) of rain is expected about once in 100 years.
Rainfall return levels at Janiskoski: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
26.7 mm (1.1 in)
5 years
36.4 mm (1.4 in)
10 years
43.2 mm (1.7 in)
25 years
52.5 mm (2.1 in)
50 years
59.9 mm (2.4 in)
100 years
67.6 mm (2.7 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 1960 to 2018.
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: 74.1 mm (2.9 in) in 1988; 50.7 mm (2.0 in) in 2011; 49.9 mm (2.0 in) in 2018.
Station Changes
1 suspected
One change was suspected in the annual mean temperature of Janiskoski, at 1997. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1997 ran 0.2 C (0.4 F) lower than in the years before (likely change).
Suspected changes in the annual mean temperature at Janiskoski, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1997
-0.2
-0.4
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
2003 to 2018 against 1961 to 1990
Over 2003 to 2018, Janiskoski had a mean temperature of 0.0 C (32.0 F) and 544.9 mm (21.5 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Kandalaksa (Russia, 253 km away), Ranua Kk (Finland, 355 km away) and Umba (Russia, 348 km away).
Climate twins of Janiskoski: stations whose 1961 to 1990 climate is closest to its 2003 to 2018 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 Janiskoski standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Janiskoski 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.