Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Akershus. 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 Akershus, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
9.5 C (49.1 F)
-25.3 C (-13.5 F)
n/a
n/a
Feb
9.0 C (48.2 F)
-32.5 C (-26.5 F)
n/a
n/a
Mar
15.0 C (59.0 F)
-24.5 C (-12.1 F)
n/a
n/a
Apr
21.2 C (70.2 F)
-12.2 C (10.0 F)
n/a
n/a
May
26.7 C (80.1 F)
-4.6 C (23.7 F)
n/a
n/a
Jun
29.5 C (85.1 F)
0.1 C (32.2 F)
n/a
n/a
Jul
30.2 C (86.4 F)
3.8 C (38.8 F)
n/a
n/a
Aug
33.5 C (92.3 F)
2.3 C (36.1 F)
n/a
n/a
Sep
23.5 C (74.3 F)
-5.0 C (23.0 F)
n/a
n/a
Oct
18.3 C (64.9 F)
-7.5 C (18.5 F)
n/a
n/a
Nov
12.8 C (55.0 F)
-17.0 C (1.4 F)
n/a
n/a
Dec
9.7 C (49.5 F)
-20.8 C (-5.4 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Akershus still stand. 1990 holds the most, with 110.
Standing records at Akershus by the year they were set
Year set
Standing records
1966
55
1967
19
1968
56
1969
58
1970
53
1971
47
1972
32
1973
53
1974
31
1975
50
1976
42
1977
41
1978
50
1979
29
1980
31
1981
44
1982
40
1983
48
1984
24
1985
50
1986
52
1987
79
1988
43
1989
85
1990
110
1991
27
1992
60
1993
44
1994
43
1995
65
1996
3
Wettest Day of Each Month
Jun: 47.8 mm (1.9 in)
The wettest day on record for each calendar month at Akershus. The most was 47.8 mm (1.9 in) on 29 June 1981.
Record daily precipitation for each month at Akershus
Month
Record daily precipitation (mm)
Date
Jan
23.0 mm (0.9 in)
29 January 1966
Feb
25.0 mm (1.0 in)
14 February 1966
Mar
23.2 mm (0.9 in)
27 March 1985
Apr
20.3 mm (0.8 in)
8 April 1968
May
24.2 mm (1.0 in)
30 May 1989
Jun
47.8 mm (1.9 in)
29 June 1981
Jul
43.5 mm (1.7 in)
29 July 1985
Aug
46.8 mm (1.8 in)
6 August 1993
Sep
46.1 mm (1.8 in)
15 September 1972
Oct
43.2 mm (1.7 in)
31 October 1968
Nov
27.9 mm (1.1 in)
16 November 1979
Dec
25.2 mm (1.0 in)
27 December 1976
Period of Record Coverage
1965 to 1996
Complete yearUnder 90 percent of days
32 years of record at Akershus, 1965 to 1996. 2 years have data for under 90 percent of days and are left out of rankings: 1965, 1996.
Cooler than the station meanWarmer than the station mean
One stripe for each of 27 complete years at Akershus, 1966 to 1995. Blue stripes are years cooler than the station's own mean of 6.7 C (44.0 F); red stripes are warmer. The coolest year was 1985, at 4.5 C (40.2 F), and the warmest was 1990, at 8.5 C (47.2 F). The strongest colour marks a difference of 2.2 C (4.0 F).
Annual mean temperature at Akershus as warming stripes, 1966 to 1995
Year
Annual mean temperature
Difference from the station mean
1966
5.2 C
-1.41 C
1967
6.9 C
+0.22 C
1968
6.0 C
-0.66 C
1969
5.8 C
-0.89 C
1970
4.9 C
-1.71 C
1971
6.8 C
+0.16 C
1972
6.9 C
+0.22 C
1973
7.0 C
+0.38 C
1974
7.5 C
+0.84 C
1975
8.1 C
+1.47 C
1976
6.2 C
-0.42 C
1977
6.2 C
-0.49 C
1978
6.0 C
-0.68 C
1981
5.5 C
-1.11 C
1982
6.7 C
+0.09 C
1983
7.1 C
+0.46 C
1984
7.1 C
+0.44 C
1985
4.5 C
-2.11 C
1986
5.8 C
-0.87 C
1988
7.1 C
+0.45 C
1989
8.1 C
+1.45 C
1990
8.5 C
+1.82 C
1991
7.4 C
+0.78 C
1992
7.8 C
+1.18 C
1993
6.5 C
-0.12 C
1994
6.9 C
+0.24 C
1995
7.0 C
+0.30 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
1965 to 1996
Yearly extremes at Akershus: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
33.5 C (92.3 F)
1975
27.5 C (81.5 F)
32
Coldest night (TNn)
-32.5 C (-26.5 F)
1966
-17.9 C (-0.2 F)
32
Wettest day (Rx1day)
47.8 mm (1.9 in)
1981
31.2 mm (1.2 in)
32
Wettest five days (Rx5day)
103.2 mm (4.1 in)
1968
52.1 mm (2.1 in)
32
Longest dry spell (CDD)
65 days
1974
23 days
32
Hottest day (TXx)
The hottest day of the year at Akershus, 1965 to 1996. The record is 33.5 C (92.3 F) in 1975, marked on the chart; the median year is 27.5 C (81.5 F).
Hottest day (TXx) at Akershus by year
Year
Hottest day (TXx)
1965
3.0 C (37.4 F)
1966
27.8 C (82.0 F)
1967
24.5 C (76.1 F)
1968
27.5 C (81.5 F)
1969
29.5 C (85.1 F)
1970
28.5 C (83.3 F)
1971
28.5 C (83.3 F)
1972
27.5 C (81.5 F)
1973
28.6 C (83.5 F)
1974
26.4 C (79.5 F)
1975
33.5 C (92.3 F)
1976
27.5 C (81.5 F)
1977
29.0 C (84.2 F)
1978
27.8 C (82.0 F)
1979
26.0 C (78.8 F)
1980
27.0 C (80.6 F)
1981
24.8 C (76.6 F)
1982
30.9 C (87.6 F)
1983
27.5 C (81.5 F)
1984
25.3 C (77.5 F)
1985
26.7 C (80.1 F)
1986
26.0 C (78.8 F)
1987
26.0 C (78.8 F)
1988
29.5 C (85.1 F)
1989
29.1 C (84.4 F)
1990
26.2 C (79.2 F)
1991
28.9 C (84.0 F)
1992
28.2 C (82.8 F)
1993
24.8 C (76.6 F)
1994
30.2 C (86.4 F)
1995
27.5 C (81.5 F)
1996
3.3 C (37.9 F)
Coldest night (TNn)
The coldest night of the year at Akershus, 1965 to 1996. The record is -32.5 C (-26.5 F) in 1966, marked on the chart; the median year is -17.9 C (-0.2 F).
Coldest night (TNn) at Akershus by year
Year
Coldest night (TNn)
1965
-17.0 C (1.4 F)
1966
-32.5 C (-26.5 F)
1967
-16.0 C (3.2 F)
1968
-20.5 C (-4.9 F)
1969
-24.0 C (-11.2 F)
1970
-27.0 C (-16.6 F)
1971
-15.5 C (4.1 F)
1972
-11.5 C (11.3 F)
1973
-15.1 C (4.8 F)
1974
-11.2 C (11.8 F)
1975
-11.2 C (11.8 F)
1976
-18.5 C (-1.3 F)
1977
-20.6 C (-5.1 F)
1978
-21.6 C (-6.9 F)
1979
-22.7 C (-8.9 F)
1980
-21.2 C (-6.2 F)
1981
-20.8 C (-5.4 F)
1982
-25.3 C (-13.5 F)
1983
-13.2 C (8.2 F)
1984
-15.2 C (4.6 F)
1985
-25.6 C (-14.1 F)
1986
-18.3 C (-0.9 F)
1987
-24.5 C (-12.1 F)
1988
-15.2 C (4.6 F)
1989
-13.1 C (8.4 F)
1990
-10.3 C (13.5 F)
1991
-13.4 C (7.9 F)
1992
-8.9 C (16.0 F)
1993
-13.0 C (8.6 F)
1994
-22.6 C (-8.7 F)
1995
-17.5 C (0.5 F)
1996
-19.3 C (-2.7 F)
Wettest day (Rx1day)
The wettest day of the year at Akershus, 1965 to 1996. The record is 47.8 mm (1.9 in) in 1981, marked on the chart; the median year is 31.2 mm (1.2 in).
Wettest day (Rx1day) at Akershus by year
Year
Wettest day (Rx1day)
1965
14.3 mm (0.6 in)
1966
25.0 mm (1.0 in)
1967
36.7 mm (1.4 in)
1968
43.2 mm (1.7 in)
1969
29.9 mm (1.2 in)
1970
31.9 mm (1.3 in)
1971
42.1 mm (1.7 in)
1972
46.1 mm (1.8 in)
1973
33.4 mm (1.3 in)
1974
23.0 mm (0.9 in)
1975
45.3 mm (1.8 in)
1976
25.2 mm (1.0 in)
1977
40.3 mm (1.6 in)
1978
33.4 mm (1.3 in)
1979
44.0 mm (1.7 in)
1980
26.4 mm (1.0 in)
1981
47.8 mm (1.9 in)
1982
26.8 mm (1.1 in)
1983
21.6 mm (0.9 in)
1984
30.4 mm (1.2 in)
1985
43.5 mm (1.7 in)
1986
29.5 mm (1.2 in)
1987
47.6 mm (1.9 in)
1988
36.3 mm (1.4 in)
1989
24.2 mm (1.0 in)
1990
28.0 mm (1.1 in)
1991
21.7 mm (0.9 in)
1992
23.6 mm (0.9 in)
1993
46.8 mm (1.8 in)
1994
35.7 mm (1.4 in)
1995
27.4 mm (1.1 in)
1996
1.4 mm (0.06 in)
Wettest five days (Rx5day)
The wettest five days of the year at Akershus, 1965 to 1996. The record is 103.2 mm (4.1 in) in 1968, marked on the chart; the median year is 52.1 mm (2.1 in).
Wettest five days (Rx5day) at Akershus by year
Year
Wettest five days (Rx5day)
1965
28.9 mm (1.1 in)
1966
34.4 mm (1.4 in)
1967
70.4 mm (2.8 in)
1968
103.2 mm (4.1 in)
1969
49.3 mm (1.9 in)
1970
50.1 mm (2.0 in)
1971
62.9 mm (2.5 in)
1972
68.1 mm (2.7 in)
1973
58.5 mm (2.3 in)
1974
46.6 mm (1.8 in)
1975
67.0 mm (2.6 in)
1976
45.4 mm (1.8 in)
1977
79.6 mm (3.1 in)
1978
55.8 mm (2.2 in)
1979
48.5 mm (1.9 in)
1980
48.6 mm (1.9 in)
1981
66.6 mm (2.6 in)
1982
42.5 mm (1.7 in)
1983
37.8 mm (1.5 in)
1984
37.4 mm (1.5 in)
1985
57.2 mm (2.3 in)
1986
38.3 mm (1.5 in)
1987
81.0 mm (3.2 in)
1988
49.9 mm (2.0 in)
1989
39.4 mm (1.6 in)
1990
72.3 mm (2.8 in)
1991
39.7 mm (1.6 in)
1992
54.1 mm (2.1 in)
1993
68.8 mm (2.7 in)
1994
55.3 mm (2.2 in)
1995
54.1 mm (2.1 in)
1996
3.9 mm (0.15 in)
Longest dry spell (CDD)
The longest dry spell of the year at Akershus, 1965 to 1996. The record is 65 days in 1974, marked on the chart; the median year is 23 days.
Longest dry spell (CDD) at Akershus by year
Year
Longest dry spell (CDD)
1965
5 days
1966
22 days
1967
15 days
1968
20 days
1969
27 days
1970
22 days
1971
20 days
1972
21 days
1973
25 days
1974
65 days
1975
30 days
1976
26 days
1977
22 days
1978
17 days
1979
15 days
1980
23 days
1981
34 days
1982
35 days
1983
45 days
1984
18 days
1985
21 days
1986
34 days
1987
31 days
1988
25 days
1989
20 days
1990
25 days
1991
33 days
1992
49 days
1993
21 days
1994
32 days
1995
20 days
1996
23 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 Akershus falls on 3 May and the median first autumn frost on 1 October, which leaves a median of 146 days between them.
Fitted over all years, the growing season changes by -8.8 days per decade at this station.
Frost dates and growing season at Akershus
Measure
Median, all years
Earliest period
Recent period (1966 to 1995)
Recent against earliest
Fitted trend
Last spring frost
3 May
n/a
3 May
n/a
+3.5 days per decade
First autumn frost
1 October
n/a
1 October
n/a
-5.3 days per decade
Growing days
146 days
n/a
146 days
n/a
-8.8 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
30 years, 1966 to 1995
A day with at least 33.2 mm (1.3 in) of rain is expected about once in 2 years. A day with at least 57.8 mm (2.3 in) of rain is expected about once in 100 years.
Rainfall return levels at Akershus: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
33.2 mm (1.3 in)
5 years
41.4 mm (1.6 in)
10 years
46.1 mm (1.8 in)
25 years
51.3 mm (2.0 in)
50 years
54.7 mm (2.2 in)
Longer than the 30 years of record
100 years
57.8 mm (2.3 in)
Longer than the 30 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, 30 years of values from 1966 to 1995.
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: 47.8 mm (1.9 in) in 1981; 47.6 mm (1.9 in) in 1987; 46.8 mm (1.8 in) in 1993.
Download the Data
Data for Akershus standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Akershus 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.