Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Riksten. 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 Riksten, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
10.6 C (51.1 F)
-32.5 C (-26.5 F)
n/a
n/a
Feb
9.5 C (49.1 F)
-32.6 C (-26.7 F)
n/a
n/a
Mar
18.3 C (64.9 F)
-26.8 C (-16.2 F)
n/a
n/a
Apr
21.0 C (69.8 F)
-15.0 C (5.0 F)
n/a
n/a
May
26.7 C (80.1 F)
-8.0 C (17.6 F)
n/a
n/a
Jun
31.3 C (88.3 F)
-3.6 C (25.5 F)
n/a
n/a
Jul
32.2 C (90.0 F)
0.3 C (32.5 F)
n/a
n/a
Aug
34.6 C (94.3 F)
-0.6 C (30.9 F)
n/a
n/a
Sep
27.5 C (81.5 F)
-6.4 C (20.5 F)
n/a
n/a
Oct
20.3 C (68.5 F)
-11.2 C (11.8 F)
n/a
n/a
Nov
13.3 C (55.9 F)
-20.6 C (-5.1 F)
n/a
n/a
Dec
12.0 C (53.6 F)
-24.1 C (-11.4 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Riksten still stand. 1968 holds the most, with 80.
Standing records at Riksten by the year they were set
Year set
Standing records
1951
28
1952
19
1953
32
1954
31
1955
51
1956
47
1957
43
1958
40
1959
47
1960
23
1961
64
1962
32
1963
20
1964
34
1965
52
1966
49
1967
31
1968
80
1969
45
1970
40
1971
63
1972
35
1973
68
1974
32
1975
60
1976
41
1977
42
1978
57
1979
34
1980
33
1981
52
1982
39
1983
49
1984
27
1985
24
Wettest Day of Each Month
Aug: 54.0 mm (2.1 in)
The wettest day on record for each calendar month at Riksten. The most was 54.0 mm (2.1 in) on 16 August 1975.
Record daily precipitation for each month at Riksten
Month
Record daily precipitation (mm)
Date
Jan
22.8 mm (0.9 in)
18 January 1960
Feb
25.0 mm (1.0 in)
4 February 1953
Mar
22.0 mm (0.9 in)
5 March 1954
Apr
18.1 mm (0.7 in)
1 April 1954
May
36.1 mm (1.4 in)
17 May 1958
Jun
46.5 mm (1.8 in)
26 June 1963
Jul
53.7 mm (2.1 in)
14 July 1954
Aug
54.0 mm (2.1 in)
16 August 1975
Sep
31.9 mm (1.3 in)
12 September 1949
Oct
36.0 mm (1.4 in)
31 October 1968
Nov
25.4 mm (1.0 in)
1 November 1959
Dec
22.7 mm (0.9 in)
17 December 1955
Period of Record Coverage
1953 to 1985
Complete yearUnder 90 percent of days
33 years of record at Riksten, 1953 to 1985. 4 years have data for under 90 percent of days and are left out of rankings: 1953, 1955, 1956, 1985.
Cooler than the station meanWarmer than the station mean
One stripe for each of 27 complete years at Riksten, 1954 to 1984. Blue stripes are years cooler than the station's own mean of 5.3 C (41.5 F); red stripes are warmer. The coolest year was 1970, at 4.1 C (39.3 F), and the warmest was 1975, at 6.9 C (44.5 F). The strongest colour marks a difference of 1.7 C (3.1 F).
Annual mean temperature at Riksten as warming stripes, 1954 to 1984
Year
Annual mean temperature
Difference from the station mean
1954
4.9 C
-0.45 C
1957
5.0 C
-0.32 C
1958
4.2 C
-1.09 C
1959
6.2 C
+0.85 C
1961
6.5 C
+1.23 C
1963
4.3 C
-1.04 C
1964
5.4 C
+0.07 C
1965
4.3 C
-1.00 C
1966
4.3 C
-0.97 C
1967
5.8 C
+0.54 C
1968
5.1 C
-0.18 C
1969
4.8 C
-0.54 C
1970
4.1 C
-1.23 C
1971
5.6 C
+0.34 C
1972
6.4 C
+1.14 C
1973
6.0 C
+0.69 C
1974
6.4 C
+1.05 C
1975
6.9 C
+1.64 C
1976
4.7 C
-0.65 C
1977
5.2 C
-0.13 C
1978
4.6 C
-0.73 C
1979
4.6 C
-0.70 C
1980
4.7 C
-0.62 C
1981
4.9 C
-0.45 C
1982
5.8 C
+0.53 C
1983
6.2 C
+0.93 C
1984
6.3 C
+1.02 C
This station does not have enough complete years (30 are needed) to fit a temperature trend.
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
1947 to 1985
Yearly extremes at Riksten: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
34.6 C (94.3 F)
1975
28.3 C (82.9 F)
33
Coldest night (TNn)
-32.6 C (-26.7 F)
1966
-24.0 C (-11.2 F)
35
Wettest day (Rx1day)
54.0 mm (2.1 in)
1975
32.5 mm (1.3 in)
37
Wettest five days (Rx5day)
91.4 mm (3.6 in)
1978
57.2 mm (2.3 in)
37
Longest dry spell (CDD)
52 days
1964
22 days
37
Hottest day (TXx)
The hottest day of the year at Riksten, 1947 to 1985. The record is 34.6 C (94.3 F) in 1975, marked on the chart; the median year is 28.3 C (82.9 F).
Hottest day (TXx) at Riksten by year
Year
Hottest day (TXx)
1947
n/a
1948
n/a
1949
n/a
1950
n/a
1951
n/a
1952
n/a
1953
28.5 C (83.3 F)
1954
28.3 C (82.9 F)
1955
27.0 C (80.6 F)
1956
29.2 C (84.6 F)
1957
26.4 C (79.5 F)
1958
28.0 C (82.4 F)
1959
30.5 C (86.9 F)
1960
27.0 C (80.6 F)
1961
27.4 C (81.3 F)
1962
24.6 C (76.3 F)
1963
26.2 C (79.2 F)
1964
27.7 C (81.9 F)
1965
24.8 C (76.6 F)
1966
29.2 C (84.6 F)
1967
27.5 C (81.5 F)
1968
30.2 C (86.4 F)
1969
29.5 C (85.1 F)
1970
31.3 C (88.3 F)
1971
28.1 C (82.6 F)
1972
29.2 C (84.6 F)
1973
30.5 C (86.9 F)
1974
26.7 C (80.1 F)
1975
34.6 C (94.3 F)
1976
29.7 C (85.5 F)
1977
28.3 C (82.9 F)
1978
28.8 C (83.8 F)
1979
28.9 C (84.0 F)
1980
26.5 C (79.7 F)
1981
25.7 C (78.3 F)
1982
32.0 C (89.6 F)
1983
32.2 C (90.0 F)
1984
26.3 C (79.3 F)
1985
26.0 C (78.8 F)
Coldest night (TNn)
The coldest night of the year at Riksten, 1947 to 1985. The record is -32.6 C (-26.7 F) in 1966, marked on the chart; the median year is -24.0 C (-11.2 F).
Coldest night (TNn) at Riksten by year
Year
Coldest night (TNn)
1947
n/a
1948
n/a
1949
n/a
1950
n/a
1951
-26.8 C (-16.2 F)
1952
-22.5 C (-8.5 F)
1953
-21.8 C (-7.2 F)
1954
-26.5 C (-15.7 F)
1955
-24.0 C (-11.2 F)
1956
-28.0 C (-18.4 F)
1957
-24.0 C (-11.2 F)
1958
-26.0 C (-14.8 F)
1959
-23.5 C (-10.3 F)
1960
-24.0 C (-11.2 F)
1961
-17.5 C (0.5 F)
1962
-23.7 C (-10.7 F)
1963
-29.4 C (-20.9 F)
1964
-23.6 C (-10.5 F)
1965
-25.8 C (-14.4 F)
1966
-32.6 C (-26.7 F)
1967
-25.2 C (-13.4 F)
1968
-24.8 C (-12.6 F)
1969
-30.8 C (-23.4 F)
1970
-29.6 C (-21.3 F)
1971
-24.7 C (-12.5 F)
1972
-18.5 C (-1.3 F)
1973
-23.1 C (-9.6 F)
1974
-14.3 C (6.3 F)
1975
-16.6 C (2.1 F)
1976
-21.9 C (-7.4 F)
1977
-19.9 C (-3.8 F)
1978
-27.4 C (-17.3 F)
1979
-32.5 C (-26.5 F)
1980
-23.7 C (-10.7 F)
1981
-24.1 C (-11.4 F)
1982
-24.4 C (-11.9 F)
1983
-21.5 C (-6.7 F)
1984
-19.8 C (-3.6 F)
1985
-27.7 C (-17.9 F)
Wettest day (Rx1day)
The wettest day of the year at Riksten, 1947 to 1985. The record is 54.0 mm (2.1 in) in 1975, marked on the chart; the median year is 32.5 mm (1.3 in).
Wettest day (Rx1day) at Riksten by year
Year
Wettest day (Rx1day)
1947
n/a
1948
n/a
1949
31.9 mm (1.3 in)
1950
23.4 mm (0.9 in)
1951
23.8 mm (0.9 in)
1952
30.3 mm (1.2 in)
1953
26.9 mm (1.1 in)
1954
53.7 mm (2.1 in)
1955
31.0 mm (1.2 in)
1956
23.9 mm (0.9 in)
1957
26.6 mm (1.0 in)
1958
36.1 mm (1.4 in)
1959
25.4 mm (1.0 in)
1960
43.5 mm (1.7 in)
1961
32.5 mm (1.3 in)
1962
33.5 mm (1.3 in)
1963
46.5 mm (1.8 in)
1964
27.0 mm (1.1 in)
1965
32.5 mm (1.3 in)
1966
19.8 mm (0.8 in)
1967
26.5 mm (1.0 in)
1968
36.0 mm (1.4 in)
1969
37.0 mm (1.5 in)
1970
19.3 mm (0.8 in)
1971
35.5 mm (1.4 in)
1972
47.5 mm (1.9 in)
1973
45.0 mm (1.8 in)
1974
32.6 mm (1.3 in)
1975
54.0 mm (2.1 in)
1976
22.3 mm (0.9 in)
1977
38.6 mm (1.5 in)
1978
41.0 mm (1.6 in)
1979
41.4 mm (1.6 in)
1980
29.1 mm (1.1 in)
1981
27.0 mm (1.1 in)
1982
38.3 mm (1.5 in)
1983
31.5 mm (1.2 in)
1984
39.5 mm (1.6 in)
1985
16.7 mm (0.7 in)
Wettest five days (Rx5day)
The wettest five days of the year at Riksten, 1947 to 1985. The record is 91.4 mm (3.6 in) in 1978, marked on the chart; the median year is 57.2 mm (2.3 in).
Wettest five days (Rx5day) at Riksten by year
Year
Wettest five days (Rx5day)
1947
n/a
1948
n/a
1949
64.9 mm (2.6 in)
1950
39.2 mm (1.5 in)
1951
39.8 mm (1.6 in)
1952
65.8 mm (2.6 in)
1953
54.3 mm (2.1 in)
1954
69.8 mm (2.7 in)
1955
65.6 mm (2.6 in)
1956
52.3 mm (2.1 in)
1957
42.8 mm (1.7 in)
1958
43.7 mm (1.7 in)
1959
61.6 mm (2.4 in)
1960
68.7 mm (2.7 in)
1961
67.4 mm (2.7 in)
1962
46.2 mm (1.8 in)
1963
57.3 mm (2.3 in)
1964
43.7 mm (1.7 in)
1965
44.1 mm (1.7 in)
1966
61.0 mm (2.4 in)
1967
79.5 mm (3.1 in)
1968
59.2 mm (2.3 in)
1969
76.7 mm (3.0 in)
1970
44.7 mm (1.8 in)
1971
70.6 mm (2.8 in)
1972
54.0 mm (2.1 in)
1973
49.4 mm (1.9 in)
1974
57.2 mm (2.3 in)
1975
71.8 mm (2.8 in)
1976
49.9 mm (2.0 in)
1977
83.0 mm (3.3 in)
1978
91.4 mm (3.6 in)
1979
54.6 mm (2.1 in)
1980
61.0 mm (2.4 in)
1981
49.1 mm (1.9 in)
1982
76.6 mm (3.0 in)
1983
54.0 mm (2.1 in)
1984
43.1 mm (1.7 in)
1985
31.9 mm (1.3 in)
Longest dry spell (CDD)
The longest dry spell of the year at Riksten, 1947 to 1985. The record is 52 days in 1964, marked on the chart; the median year is 22 days.
Longest dry spell (CDD) at Riksten by year
Year
Longest dry spell (CDD)
1947
n/a
1948
n/a
1949
16 days
1950
18 days
1951
19 days
1952
14 days
1953
26 days
1954
18 days
1955
47 days
1956
33 days
1957
16 days
1958
26 days
1959
26 days
1960
27 days
1961
20 days
1962
16 days
1963
17 days
1964
52 days
1965
20 days
1966
19 days
1967
13 days
1968
21 days
1969
43 days
1970
25 days
1971
14 days
1972
22 days
1973
16 days
1974
34 days
1975
26 days
1976
23 days
1977
13 days
1978
17 days
1979
27 days
1980
23 days
1981
23 days
1982
22 days
1983
32 days
1984
25 days
1985
24 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
27 years with a frost
Across 27 years with a frost, the median last spring frost at Riksten falls on 6 June and the median first autumn frost on 16 September, which leaves a median of 105 days between them.
Fitted over all years, the growing season changes by -7.5 days per decade at this station.
Frost dates and growing season at Riksten
Measure
Median, all years
Earliest period
Recent period (1954 to 1984)
Recent against earliest
Fitted trend
Last spring frost
6 June
n/a
6 June
n/a
+4.8 days per decade
First autumn frost
16 September
n/a
16 September
n/a
-2.7 days per decade
Growing days
105 days
n/a
105 days
n/a
-7.5 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
36 years, 1949 to 1984
A day with at least 32.5 mm (1.3 in) of rain is expected about once in 2 years. A day with at least 60.1 mm (2.4 in) of rain is expected about once in 100 years.
Rainfall return levels at Riksten: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
32.5 mm (1.3 in)
5 years
40.8 mm (1.6 in)
10 years
45.9 mm (1.8 in)
25 years
52.0 mm (2.0 in)
50 years
56.2 mm (2.2 in)
Longer than the 36 years of record
100 years
60.1 mm (2.4 in)
Longer than the 36 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, 36 years of values from 1949 to 1984.
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: 54.0 mm (2.1 in) in 1975; 53.7 mm (2.1 in) in 1954; 47.5 mm (1.9 in) in 1972.
Download the Data
Data for Riksten standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Riksten 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.