Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Kuusankoski Keskusta. 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 Kuusankoski Keskusta, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
7.5 C (45.5 F)
-36.2 C (-33.2 F)
n/a
n/a
Feb
9.6 C (49.3 F)
-32.8 C (-27.0 F)
n/a
n/a
Mar
13.5 C (56.3 F)
-30.1 C (-22.2 F)
n/a
n/a
Apr
21.8 C (71.2 F)
-17.4 C (0.7 F)
n/a
n/a
May
28.1 C (82.6 F)
-5.2 C (22.6 F)
n/a
n/a
Jun
30.8 C (87.4 F)
0.2 C (32.4 F)
n/a
n/a
Jul
32.0 C (89.6 F)
4.0 C (39.2 F)
n/a
n/a
Aug
31.1 C (88.0 F)
0.6 C (33.1 F)
n/a
n/a
Sep
26.7 C (80.1 F)
-4.6 C (23.7 F)
n/a
n/a
Oct
16.8 C (62.2 F)
-11.6 C (11.1 F)
n/a
n/a
Nov
11.5 C (52.7 F)
-20.2 C (-4.4 F)
n/a
n/a
Dec
7.0 C (44.6 F)
-30.8 C (-23.4 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Kuusankoski Keskusta still stand. 1968 holds the most, with 74.
Standing records at Kuusankoski Keskusta by the year they were set
Year set
Standing records
1959
34
1960
32
1961
46
1962
38
1963
48
1964
27
1965
51
1966
42
1967
55
1968
74
1969
34
1970
29
1971
38
1972
64
1973
58
1974
33
1975
59
1976
44
1977
62
1978
62
1979
38
1980
46
1981
32
1982
46
1983
35
1984
35
1985
49
1986
27
1987
54
1988
52
1989
64
1990
56
Wettest Day of Each Month
May: 88.4 mm (3.5 in)
The wettest day on record for each calendar month at Kuusankoski Keskusta. The most was 88.4 mm (3.5 in) on 31 May 1988.
Record daily precipitation for each month at Kuusankoski Keskusta
Month
Record daily precipitation (mm)
Date
Jan
25.4 mm (1.0 in)
23 January 1960
Feb
21.4 mm (0.8 in)
12 February 1962
Mar
18.5 mm (0.7 in)
21 March 1974
Apr
17.9 mm (0.7 in)
17 April 1972
May
88.4 mm (3.5 in)
31 May 1988
Jun
34.5 mm (1.4 in)
13 June 1981
Jul
41.0 mm (1.6 in)
7 July 1985
Aug
58.3 mm (2.3 in)
12 August 1983
Sep
50.3 mm (2.0 in)
12 September 1988
Oct
35.3 mm (1.4 in)
9 October 1973
Nov
21.3 mm (0.8 in)
1 November 1962
Dec
24.1 mm (0.9 in)
13 December 1964
Period of Record Coverage
1959 to 1990
Complete yearUnder 90 percent of days
32 years of record at Kuusankoski Keskusta, 1959 to 1990. 1 years have data for under 90 percent of days and are left out of rankings: 1959.
Cooler than the station meanWarmer than the station mean
One stripe for each of 31 complete years at Kuusankoski Keskusta, 1960 to 1990. Blue stripes are years cooler than the station's own mean of 4.2 C (39.5 F); red stripes are warmer. The coolest year was 1987, at 2.4 C (36.3 F), and the warmest was 1989, at 6.6 C (43.8 F). The strongest colour marks a difference of 2.4 C (4.3 F).
Annual mean temperature at Kuusankoski Keskusta as warming stripes, 1960 to 1990
Year
Annual mean temperature
Difference from the station mean
1960
4.0 C
-0.18 C
1961
5.7 C
+1.54 C
1962
3.8 C
-0.40 C
1963
3.7 C
-0.46 C
1964
4.4 C
+0.22 C
1965
3.7 C
-0.44 C
1966
2.9 C
-1.30 C
1967
4.6 C
+0.41 C
1968
3.5 C
-0.72 C
1969
3.1 C
-1.11 C
1970
3.4 C
-0.81 C
1971
4.0 C
-0.20 C
1972
5.1 C
+0.94 C
1973
4.4 C
+0.23 C
1974
5.7 C
+1.50 C
1975
5.9 C
+1.72 C
1976
2.7 C
-1.45 C
1977
3.7 C
-0.51 C
1978
2.7 C
-1.49 C
1979
4.1 C
-0.11 C
1980
3.6 C
-0.55 C
1981
4.2 C
+0.05 C
1982
4.5 C
+0.31 C
1983
5.1 C
+0.91 C
1984
5.1 C
+0.92 C
1985
2.5 C
-1.70 C
1986
4.1 C
-0.07 C
1987
2.4 C
-1.80 C
1988
4.9 C
+0.73 C
1989
6.6 C
+2.37 C
1990
5.8 C
+1.59 C
The fitted trend in annual mean temperature here over 1960 to 1990 is 0.2 C (-0.2 to 0.6) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.4 F (-0.4 to 1.2) per decade. The slope is a straight line fitted to 31 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Kuusankoski Keskusta
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.2 C (-0.2 to 0.6) per decade
0.4 F (-0.4 to 1.2) per decade
1960 to 1990
31
Not clearly different from zero
Mean daily maximum
0.1 C (-0.3 to 0.5) per decade
0.2 F (-0.6 to 0.9) per decade
1960 to 1990
31
Not clearly different from zero
Mean daily minimum
0.3 C (-0.2 to 0.8) per decade
0.6 F (-0.3 to 1.4) per decade
1960 to 1990
31
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
1959 to 1990
Yearly extremes at Kuusankoski Keskusta: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
32.0 C (89.6 F)
1973
29.5 C (85.1 F)
32
Coldest night (TNn)
-36.2 C (-33.2 F)
1987
-26.8 C (-16.2 F)
32
Wettest day (Rx1day)
88.4 mm (3.5 in)
1988
29.0 mm (1.1 in)
32
Wettest five days (Rx5day)
90.7 mm (3.6 in)
1988
50.7 mm (2.0 in)
32
Longest dry spell (CDD)
38 days
1972
23 days
32
Hottest day (TXx)
The hottest day of the year at Kuusankoski Keskusta, 1959 to 1990. The record is 32.0 C (89.6 F) in 1973, marked on the chart; the median year is 29.5 C (85.1 F).
Hottest day (TXx) at Kuusankoski Keskusta by year
Year
Hottest day (TXx)
1959
29.1 C (84.4 F)
1960
30.5 C (86.9 F)
1961
29.6 C (85.3 F)
1962
24.4 C (75.9 F)
1963
31.1 C (88.0 F)
1964
28.7 C (83.7 F)
1965
27.1 C (80.8 F)
1966
29.5 C (85.1 F)
1967
30.0 C (86.0 F)
1968
29.5 C (85.1 F)
1969
29.5 C (85.1 F)
1970
30.9 C (87.6 F)
1971
26.8 C (80.2 F)
1972
30.8 C (87.4 F)
1973
32.0 C (89.6 F)
1974
26.2 C (79.2 F)
1975
29.8 C (85.6 F)
1976
25.0 C (77.0 F)
1977
30.0 C (86.0 F)
1978
28.0 C (82.4 F)
1979
28.3 C (82.9 F)
1980
29.8 C (85.6 F)
1981
29.3 C (84.7 F)
1982
29.4 C (84.9 F)
1983
30.1 C (86.2 F)
1984
27.9 C (82.2 F)
1985
28.1 C (82.6 F)
1986
29.8 C (85.6 F)
1987
28.0 C (82.4 F)
1988
30.3 C (86.5 F)
1989
29.5 C (85.1 F)
1990
25.7 C (78.3 F)
Coldest night (TNn)
The coldest night of the year at Kuusankoski Keskusta, 1959 to 1990. The record is -36.2 C (-33.2 F) in 1987, marked on the chart; the median year is -26.8 C (-16.2 F).
Coldest night (TNn) at Kuusankoski Keskusta by year
Year
Coldest night (TNn)
1959
-25.0 C (-13.0 F)
1960
-26.6 C (-15.9 F)
1961
-25.0 C (-13.0 F)
1962
-25.3 C (-13.5 F)
1963
-30.1 C (-22.2 F)
1964
-25.9 C (-14.6 F)
1965
-28.5 C (-19.3 F)
1966
-32.8 C (-27.0 F)
1967
-32.2 C (-26.0 F)
1968
-32.2 C (-26.0 F)
1969
-30.0 C (-22.0 F)
1970
-28.1 C (-18.6 F)
1971
-24.0 C (-11.2 F)
1972
-25.3 C (-13.5 F)
1973
-28.3 C (-18.9 F)
1974
-16.2 C (2.8 F)
1975
-22.7 C (-8.9 F)
1976
-29.2 C (-20.6 F)
1977
-26.4 C (-15.5 F)
1978
-30.8 C (-23.4 F)
1979
-29.3 C (-20.7 F)
1980
-31.2 C (-24.2 F)
1981
-25.0 C (-13.0 F)
1982
-27.4 C (-17.3 F)
1983
-21.6 C (-6.9 F)
1984
-21.6 C (-6.9 F)
1985
-30.7 C (-23.3 F)
1986
-27.0 C (-16.6 F)
1987
-36.2 C (-33.2 F)
1988
-22.0 C (-7.6 F)
1989
-25.5 C (-13.9 F)
1990
-23.3 C (-9.9 F)
Wettest day (Rx1day)
The wettest day of the year at Kuusankoski Keskusta, 1959 to 1990. The record is 88.4 mm (3.5 in) in 1988, marked on the chart; the median year is 29.0 mm (1.1 in).
Wettest day (Rx1day) at Kuusankoski Keskusta by year
Year
Wettest day (Rx1day)
1959
28.7 mm (1.1 in)
1960
37.9 mm (1.5 in)
1961
27.7 mm (1.1 in)
1962
35.0 mm (1.4 in)
1963
19.2 mm (0.8 in)
1964
24.1 mm (0.9 in)
1965
38.4 mm (1.5 in)
1966
41.2 mm (1.6 in)
1967
21.0 mm (0.8 in)
1968
30.2 mm (1.2 in)
1969
29.2 mm (1.1 in)
1970
20.9 mm (0.8 in)
1971
25.6 mm (1.0 in)
1972
50.9 mm (2.0 in)
1973
35.3 mm (1.4 in)
1974
23.4 mm (0.9 in)
1975
18.7 mm (0.7 in)
1976
28.3 mm (1.1 in)
1977
34.0 mm (1.3 in)
1978
16.2 mm (0.6 in)
1979
41.0 mm (1.6 in)
1980
25.4 mm (1.0 in)
1981
34.5 mm (1.4 in)
1982
25.0 mm (1.0 in)
1983
58.3 mm (2.3 in)
1984
30.5 mm (1.2 in)
1985
41.0 mm (1.6 in)
1986
22.6 mm (0.9 in)
1987
18.8 mm (0.7 in)
1988
88.4 mm (3.5 in)
1989
25.2 mm (1.0 in)
1990
32.5 mm (1.3 in)
Wettest five days (Rx5day)
The wettest five days of the year at Kuusankoski Keskusta, 1959 to 1990. The record is 90.7 mm (3.6 in) in 1988, marked on the chart; the median year is 50.7 mm (2.0 in).
Wettest five days (Rx5day) at Kuusankoski Keskusta by year
Year
Wettest five days (Rx5day)
1959
53.4 mm (2.1 in)
1960
72.3 mm (2.8 in)
1961
64.6 mm (2.5 in)
1962
77.3 mm (3.0 in)
1963
48.1 mm (1.9 in)
1964
39.6 mm (1.6 in)
1965
89.3 mm (3.5 in)
1966
74.6 mm (2.9 in)
1967
49.4 mm (1.9 in)
1968
34.8 mm (1.4 in)
1969
38.2 mm (1.5 in)
1970
62.1 mm (2.4 in)
1971
34.5 mm (1.4 in)
1972
74.6 mm (2.9 in)
1973
50.2 mm (2.0 in)
1974
57.5 mm (2.3 in)
1975
29.7 mm (1.2 in)
1976
38.0 mm (1.5 in)
1977
51.1 mm (2.0 in)
1978
44.2 mm (1.7 in)
1979
61.0 mm (2.4 in)
1980
50.0 mm (2.0 in)
1981
49.6 mm (2.0 in)
1982
69.8 mm (2.7 in)
1983
66.5 mm (2.6 in)
1984
66.2 mm (2.6 in)
1985
53.4 mm (2.1 in)
1986
42.9 mm (1.7 in)
1987
50.3 mm (2.0 in)
1988
90.7 mm (3.6 in)
1989
38.5 mm (1.5 in)
1990
47.1 mm (1.9 in)
Longest dry spell (CDD)
The longest dry spell of the year at Kuusankoski Keskusta, 1959 to 1990. The record is 38 days in 1972, marked on the chart; the median year is 23 days.
Longest dry spell (CDD) at Kuusankoski Keskusta by year
Year
Longest dry spell (CDD)
1959
24 days
1960
35 days
1961
28 days
1962
15 days
1963
34 days
1964
23 days
1965
18 days
1966
22 days
1967
11 days
1968
19 days
1969
29 days
1970
28 days
1971
17 days
1972
38 days
1973
21 days
1974
18 days
1975
19 days
1976
26 days
1977
14 days
1978
34 days
1979
32 days
1980
24 days
1981
23 days
1982
20 days
1983
30 days
1984
19 days
1985
13 days
1986
27 days
1987
26 days
1988
22 days
1989
20 days
1990
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
31 years with a frost
Across 31 years with a frost, the median last spring frost at Kuusankoski Keskusta falls on 11 May and the median first autumn frost on 2 October, which leaves a median of 142 days between them.
Fitted over all years, the growing season changes by -0.9 days per decade at this station.
Frost dates and growing season at Kuusankoski Keskusta
Measure
Median, all years
Earliest period
Recent period (1961 to 1990)
Recent against earliest
Fitted trend
Last spring frost
11 May
n/a
11 May
n/a
-2.1 days per decade
First autumn frost
2 October
n/a
2 October
n/a
-3.0 days per decade
Growing days
142 days
n/a
142 days
n/a
-0.9 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
32 years, 1959 to 1990
A day with at least 28.5 mm (1.1 in) of rain is expected about once in 2 years. A day with at least 86.7 mm (3.4 in) of rain is expected about once in 100 years.
Rainfall return levels at Kuusankoski Keskusta: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
28.5 mm (1.1 in)
5 years
39.3 mm (1.5 in)
10 years
48.0 mm (1.9 in)
25 years
61.3 mm (2.4 in)
50 years
73.1 mm (2.9 in)
Longer than the 32 years of record
100 years
86.7 mm (3.4 in)
Longer than the 32 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, 32 years of values from 1959 to 1990.
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: 88.4 mm (3.5 in) in 1988; 58.3 mm (2.3 in) in 1983; 50.9 mm (2.0 in) in 1972.
Download the Data
Data for Kuusankoski Keskusta standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Kuusankoski Keskusta 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 2026-10-16 (16 October 2026). Records are computed by this site and are not official.