Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Pertunmaa Laukkala. 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 Pertunmaa Laukkala, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
7.4 C (45.3 F)
-37.9 C (-36.2 F)
n/a
n/a
Feb
8.2 C (46.8 F)
-32.8 C (-27.0 F)
n/a
n/a
Mar
15.0 C (59.0 F)
-29.6 C (-21.3 F)
n/a
n/a
Apr
23.1 C (73.6 F)
-15.5 C (4.1 F)
n/a
n/a
May
28.6 C (83.5 F)
-7.6 C (18.3 F)
n/a
n/a
Jun
30.0 C (86.0 F)
-1.2 C (29.8 F)
n/a
n/a
Jul
30.7 C (87.3 F)
1.9 C (35.4 F)
n/a
n/a
Aug
29.1 C (84.4 F)
-1.5 C (29.3 F)
n/a
n/a
Sep
24.1 C (75.4 F)
-6.5 C (20.3 F)
n/a
n/a
Oct
17.1 C (62.8 F)
-14.3 C (6.3 F)
n/a
n/a
Nov
9.8 C (49.6 F)
-23.4 C (-10.1 F)
n/a
n/a
Dec
7.3 C (45.1 F)
-33.3 C (-27.9 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Pertunmaa Laukkala still stand. 1978 holds the most, with 63.
Standing records at Pertunmaa Laukkala by the year they were set
Year set
Standing records
1972
36
1973
61
1974
29
1975
49
1976
60
1977
58
1978
63
1979
39
1980
32
1981
33
1982
28
1983
33
1984
43
1985
49
1986
35
1987
51
1988
47
1989
42
1990
42
1991
18
1992
49
1993
32
1994
30
1995
48
1996
42
1997
42
1998
55
1999
52
2000
56
2001
34
2002
50
2003
41
2004
14
2005
35
2006
36
Wettest Day of Each Month
Aug: 108.5 mm (4.3 in)
The wettest day on record for each calendar month at Pertunmaa Laukkala. The most was 108.5 mm (4.3 in) on 12 August 1972.
Record daily precipitation for each month at Pertunmaa Laukkala
Month
Record daily precipitation (mm)
Date
Jan
28.4 mm (1.1 in)
24 January 2002
Feb
16.0 mm (0.6 in)
4 February 1999
Mar
23.6 mm (0.9 in)
21 March 1974
Apr
22.8 mm (0.9 in)
17 April 1972
May
22.3 mm (0.9 in)
26 May 1980
Jun
37.8 mm (1.5 in)
29 June 1988
Jul
50.4 mm (2.0 in)
17 July 1994
Aug
108.5 mm (4.3 in)
12 August 1972
Sep
38.2 mm (1.5 in)
12 September 1988
Oct
30.5 mm (1.2 in)
7 October 2003
Nov
20.3 mm (0.8 in)
18 November 2000
Dec
21.5 mm (0.8 in)
12 December 1999
Period of Record Coverage
1972 to 2006
Complete yearUnder 90 percent of days
35 years of record at Pertunmaa Laukkala, 1972 to 2006. 1 years have data for under 90 percent of days and are left out of rankings: 2006.
Cooler than the station meanWarmer than the station mean
One stripe for each of 34 complete years at Pertunmaa Laukkala, 1972 to 2005. Blue stripes are years cooler than the station's own mean of 3.6 C (38.5 F); red stripes are warmer. The coolest year was 1985, at 1.3 C (34.3 F), and the warmest was 2000, at 5.6 C (42.1 F). The strongest colour marks a difference of 2.4 C (4.3 F).
Annual mean temperature at Pertunmaa Laukkala as warming stripes, 1972 to 2005
Year
Annual mean temperature
Difference from the station mean
1972
3.9 C
+0.24 C
1973
2.9 C
-0.72 C
1974
4.4 C
+0.80 C
1975
4.1 C
+0.51 C
1976
1.3 C
-2.30 C
1977
2.7 C
-0.95 C
1978
1.6 C
-2.06 C
1979
3.2 C
-0.46 C
1980
2.6 C
-1.01 C
1981
3.1 C
-0.52 C
1982
3.4 C
-0.20 C
1983
4.0 C
+0.33 C
1984
4.2 C
+0.59 C
1985
1.3 C
-2.34 C
1986
3.1 C
-0.53 C
1987
1.5 C
-2.14 C
1988
3.8 C
+0.19 C
1989
5.4 C
+1.76 C
1990
4.6 C
+0.93 C
1991
4.3 C
+0.66 C
1992
4.4 C
+0.80 C
1993
3.4 C
-0.20 C
1994
3.4 C
-0.19 C
1995
4.4 C
+0.75 C
1996
3.3 C
-0.35 C
1997
4.0 C
+0.34 C
1998
3.5 C
-0.14 C
1999
4.4 C
+0.80 C
2000
5.6 C
+1.97 C
2001
4.0 C
+0.40 C
2002
4.2 C
+0.62 C
2003
4.1 C
+0.52 C
2004
4.3 C
+0.66 C
2005
4.9 C
+1.23 C
The annual mean temperature here has risen by 0.5 C (0.2 to 0.9) per decade over 1972 to 2005. In Fahrenheit: 0.9 F (0.3 to 1.5) per decade. The slope is a straight line fitted to 34 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Pertunmaa Laukkala
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.5 C (0.2 to 0.9) per decade
0.9 F (0.3 to 1.5) per decade
1972 to 2005
34
Rise
Mean daily maximum
0.4 C (0.1 to 0.8) per decade
0.8 F (0.2 to 1.4) per decade
1972 to 2005
34
Rise
Mean daily minimum
0.6 C (0.2 to 1.0) per decade
1.1 F (0.4 to 1.7) per decade
1972 to 2005
34
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
1971 to 2006
Yearly extremes at Pertunmaa Laukkala: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
30.7 C (87.3 F)
1994
27.8 C (82.0 F)
35
Coldest night (TNn)
-37.9 C (-36.2 F)
1987
-29.1 C (-20.4 F)
35
Wettest day (Rx1day)
108.5 mm (4.3 in)
1972
30.4 mm (1.2 in)
36
Wettest five days (Rx5day)
131.7 mm (5.2 in)
1972
53.9 mm (2.1 in)
36
Longest dry spell (CDD)
38 days
1990
24 days
36
Hottest day (TXx)
The hottest day of the year at Pertunmaa Laukkala, 1971 to 2006. The record is 30.7 C (87.3 F) in 1994, marked on the chart; the median year is 27.8 C (82.0 F).
Hottest day (TXx) at Pertunmaa Laukkala by year
Year
Hottest day (TXx)
1971
n/a
1972
29.7 C (85.5 F)
1973
28.1 C (82.6 F)
1974
25.9 C (78.6 F)
1975
27.8 C (82.0 F)
1976
25.3 C (77.5 F)
1977
29.6 C (85.3 F)
1978
27.0 C (80.6 F)
1979
26.7 C (80.1 F)
1980
28.5 C (83.3 F)
1981
26.9 C (80.4 F)
1982
27.3 C (81.1 F)
1983
27.8 C (82.0 F)
1984
27.6 C (81.7 F)
1985
26.8 C (80.2 F)
1986
28.5 C (83.3 F)
1987
27.2 C (81.0 F)
1988
30.0 C (86.0 F)
1989
28.2 C (82.8 F)
1990
26.6 C (79.9 F)
1991
26.8 C (80.2 F)
1992
28.5 C (83.3 F)
1993
25.8 C (78.4 F)
1994
30.7 C (87.3 F)
1995
28.6 C (83.5 F)
1996
26.4 C (79.5 F)
1997
29.8 C (85.6 F)
1998
27.2 C (81.0 F)
1999
30.0 C (86.0 F)
2000
29.2 C (84.6 F)
2001
28.3 C (82.9 F)
2002
27.2 C (81.0 F)
2003
29.8 C (85.6 F)
2004
27.3 C (81.1 F)
2005
28.5 C (83.3 F)
2006
30.0 C (86.0 F)
Coldest night (TNn)
The coldest night of the year at Pertunmaa Laukkala, 1971 to 2006. The record is -37.9 C (-36.2 F) in 1987, marked on the chart; the median year is -29.1 C (-20.4 F).
Coldest night (TNn) at Pertunmaa Laukkala by year
Year
Coldest night (TNn)
1971
n/a
1972
-29.6 C (-21.3 F)
1973
-31.8 C (-25.2 F)
1974
-19.0 C (-2.2 F)
1975
-29.1 C (-20.4 F)
1976
-32.6 C (-26.7 F)
1977
-27.9 C (-18.2 F)
1978
-33.3 C (-27.9 F)
1979
-32.3 C (-26.1 F)
1980
-31.3 C (-24.3 F)
1981
-24.3 C (-11.7 F)
1982
-29.3 C (-20.7 F)
1983
-24.8 C (-12.6 F)
1984
-23.7 C (-10.7 F)
1985
-34.6 C (-30.3 F)
1986
-28.6 C (-19.5 F)
1987
-37.9 C (-36.2 F)
1988
-25.6 C (-14.1 F)
1989
-25.2 C (-13.4 F)
1990
-26.8 C (-16.2 F)
1991
-28.1 C (-18.6 F)
1992
-22.5 C (-8.5 F)
1993
-26.5 C (-15.7 F)
1994
-32.8 C (-27.0 F)
1995
-30.2 C (-22.4 F)
1996
-29.5 C (-21.1 F)
1997
-23.0 C (-9.4 F)
1998
-30.3 C (-22.5 F)
1999
-31.0 C (-23.8 F)
2000
-24.5 C (-12.1 F)
2001
-32.0 C (-25.6 F)
2002
-29.8 C (-21.6 F)
2003
-31.6 C (-24.9 F)
2004
-23.5 C (-10.3 F)
2005
-22.4 C (-8.3 F)
2006
-29.0 C (-20.2 F)
Wettest day (Rx1day)
The wettest day of the year at Pertunmaa Laukkala, 1971 to 2006. The record is 108.5 mm (4.3 in) in 1972, marked on the chart; the median year is 30.4 mm (1.2 in).
Wettest day (Rx1day) at Pertunmaa Laukkala by year
Year
Wettest day (Rx1day)
1971
26.7 mm (1.1 in)
1972
108.5 mm (4.3 in)
1973
29.2 mm (1.1 in)
1974
33.2 mm (1.3 in)
1975
20.5 mm (0.8 in)
1976
31.5 mm (1.2 in)
1977
24.5 mm (1.0 in)
1978
30.3 mm (1.2 in)
1979
35.2 mm (1.4 in)
1980
25.8 mm (1.0 in)
1981
35.8 mm (1.4 in)
1982
21.8 mm (0.9 in)
1983
34.4 mm (1.4 in)
1984
34.8 mm (1.4 in)
1985
26.6 mm (1.0 in)
1986
27.1 mm (1.1 in)
1987
25.2 mm (1.0 in)
1988
42.4 mm (1.7 in)
1989
24.8 mm (1.0 in)
1990
31.4 mm (1.2 in)
1991
73.9 mm (2.9 in)
1992
23.7 mm (0.9 in)
1993
35.4 mm (1.4 in)
1994
50.4 mm (2.0 in)
1995
28.1 mm (1.1 in)
1996
47.1 mm (1.9 in)
1997
17.1 mm (0.7 in)
1998
22.5 mm (0.9 in)
1999
32.9 mm (1.3 in)
2000
20.6 mm (0.8 in)
2001
32.8 mm (1.3 in)
2002
28.4 mm (1.1 in)
2003
30.7 mm (1.2 in)
2004
32.4 mm (1.3 in)
2005
30.5 mm (1.2 in)
2006
17.3 mm (0.7 in)
Wettest five days (Rx5day)
The wettest five days of the year at Pertunmaa Laukkala, 1971 to 2006. The record is 131.7 mm (5.2 in) in 1972, marked on the chart; the median year is 53.9 mm (2.1 in).
Wettest five days (Rx5day) at Pertunmaa Laukkala by year
Year
Wettest five days (Rx5day)
1971
52.7 mm (2.1 in)
1972
131.7 mm (5.2 in)
1973
65.2 mm (2.6 in)
1974
69.0 mm (2.7 in)
1975
32.7 mm (1.3 in)
1976
42.8 mm (1.7 in)
1977
53.9 mm (2.1 in)
1978
39.6 mm (1.6 in)
1979
49.7 mm (2.0 in)
1980
46.3 mm (1.8 in)
1981
64.2 mm (2.5 in)
1982
48.6 mm (1.9 in)
1983
67.1 mm (2.6 in)
1984
56.7 mm (2.2 in)
1985
52.3 mm (2.1 in)
1986
47.4 mm (1.9 in)
1987
58.0 mm (2.3 in)
1988
53.8 mm (2.1 in)
1989
61.1 mm (2.4 in)
1990
43.4 mm (1.7 in)
1991
89.5 mm (3.5 in)
1992
41.5 mm (1.6 in)
1993
55.4 mm (2.2 in)
1994
84.6 mm (3.3 in)
1995
51.2 mm (2.0 in)
1996
93.1 mm (3.7 in)
1997
37.8 mm (1.5 in)
1998
38.8 mm (1.5 in)
1999
42.1 mm (1.7 in)
2000
51.1 mm (2.0 in)
2001
79.2 mm (3.1 in)
2002
55.9 mm (2.2 in)
2003
64.1 mm (2.5 in)
2004
84.5 mm (3.3 in)
2005
61.4 mm (2.4 in)
2006
31.3 mm (1.2 in)
Longest dry spell (CDD)
The longest dry spell of the year at Pertunmaa Laukkala, 1971 to 2006. The record is 38 days in 1990, marked on the chart; the median year is 24 days.
Longest dry spell (CDD) at Pertunmaa Laukkala by year
Year
Longest dry spell (CDD)
1971
11 days
1972
37 days
1973
16 days
1974
25 days
1975
19 days
1976
33 days
1977
16 days
1978
29 days
1979
26 days
1980
23 days
1981
26 days
1982
22 days
1983
24 days
1984
21 days
1985
12 days
1986
18 days
1987
27 days
1988
15 days
1989
17 days
1990
38 days
1991
16 days
1992
38 days
1993
28 days
1994
26 days
1995
29 days
1996
30 days
1997
17 days
1998
14 days
1999
25 days
2000
18 days
2001
18 days
2002
24 days
2003
24 days
2004
24 days
2005
20 days
2006
29 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
34 years with a frost
Across 34 years with a frost, the median last spring frost at Pertunmaa Laukkala falls on 22 May and the median first autumn frost on 20 September, which leaves a median of 121 days between them.
Fitted over all years, the growing season changes by +7.1 days per decade at this station.
Frost dates and growing season at Pertunmaa Laukkala
Measure
Median, all years
Earliest period
Recent period (1976 to 2005)
Recent against earliest
Fitted trend
Last spring frost
22 May
n/a
22 May
n/a
-3.1 days per decade
First autumn frost
20 September
n/a
20 September
n/a
+4.0 days per decade
Growing days
121 days
n/a
122 days
n/a
+7.1 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
34 years, 1972 to 2005
A day with at least 29.0 mm (1.1 in) of rain is expected about once in 2 years. A day with at least 103.1 mm (4.1 in) of rain is expected about once in 100 years.
Rainfall return levels at Pertunmaa Laukkala: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
29.0 mm (1.1 in)
5 years
39.2 mm (1.5 in)
10 years
48.7 mm (1.9 in)
25 years
65.1 mm (2.6 in)
50 years
81.7 mm (3.2 in)
Longer than the 34 years of record
100 years
103.1 mm (4.1 in)
Longer than the 34 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, 34 years of values from 1972 to 2005.
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: 108.5 mm (4.3 in) in 1972; 73.9 mm (2.9 in) in 1991; 50.4 mm (2.0 in) in 1994.
Download the Data
Data for Pertunmaa Laukkala standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Pertunmaa Laukkala 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 2026-10-17 (17 October 2026). Records are computed by this site and are not official.