Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Sisimiut. 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 Sisimiut, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
12.5 C (54.5 F)
-35.8 C (-32.4 F)
n/a
n/a
Feb
11.3 C (52.3 F)
-38.8 C (-37.8 F)
n/a
n/a
Mar
8.7 C (47.7 F)
-36.8 C (-34.2 F)
n/a
n/a
Apr
11.4 C (52.5 F)
-25.8 C (-14.4 F)
n/a
n/a
May
16.1 C (61.0 F)
-19.1 C (-2.4 F)
n/a
n/a
Jun
21.0 C (69.8 F)
-5.6 C (21.9 F)
n/a
n/a
Jul
22.0 C (71.6 F)
-3.0 C (26.6 F)
n/a
n/a
Aug
23.8 C (74.8 F)
-4.5 C (23.9 F)
n/a
n/a
Sep
16.7 C (62.1 F)
-7.8 C (18.0 F)
n/a
n/a
Oct
12.0 C (53.6 F)
-12.8 C (9.0 F)
n/a
n/a
Nov
12.6 C (54.7 F)
-21.0 C (-5.8 F)
n/a
n/a
Dec
11.5 C (52.7 F)
-33.0 C (-27.4 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Sisimiut still stand. 1992 holds the most, with 81.
Standing records at Sisimiut by the year they were set
Year set
Standing records
1961
16
1962
36
1963
37
1964
64
1965
24
1966
35
1967
30
1968
37
1969
49
1970
50
1971
56
1972
41
1973
26
1974
25
1975
15
1976
40
1977
36
1978
37
1979
28
1980
33
1981
20
1982
32
1983
76
1984
66
1985
28
1986
33
1987
22
1988
34
1989
38
1990
14
1991
17
1992
81
1993
23
1994
42
1995
41
1996
37
1997
47
1998
33
1999
43
2000
17
2001
5
All-Time Record Progression
1 new records
1 all-time records were set at Sisimiut between 16 July 1998 and 16 July 1998. Each dot is a new record.
When Sisimiut set new all-time records
Date
Kind
Detail
1998-07-16
Record high minimum temperature
Record high minimum temperature 10.1 C (50.2 F)
Wettest Day of Each Month
Sep: 93.2 mm (3.7 in)
The wettest day on record for each calendar month at Sisimiut. The most was 93.2 mm (3.7 in) on 13 September 1976.
Record daily precipitation for each month at Sisimiut
Month
Record daily precipitation (mm)
Date
Jan
33.4 mm (1.3 in)
7 January 1967
Feb
38.0 mm (1.5 in)
28 February 2001
Mar
58.0 mm (2.3 in)
17 March 1998
Apr
68.0 mm (2.7 in)
20 April 1983
May
60.0 mm (2.4 in)
11 May 1999
Jun
55.0 mm (2.2 in)
23 June 1989
Jul
49.0 mm (1.9 in)
27 July 1991
Aug
70.0 mm (2.8 in)
4 August 1986
Sep
93.2 mm (3.7 in)
13 September 1976
Oct
59.0 mm (2.3 in)
1 October 1974
Nov
55.0 mm (2.2 in)
23 November 1987
Dec
45.1 mm (1.8 in)
31 December 1969
Period of Record Coverage
1961 to 2001
Complete yearUnder 90 percent of days
41 years of record at Sisimiut, 1961 to 2001. 17 years have data for under 90 percent of days and are left out of rankings: 1961, 1962, 1963, 1981, 1982, 1983, 1984, 1985 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 26 complete years at Sisimiut, 1961 to 1998. Blue stripes are years cooler than the station's own mean of -3.4 C (25.8 F); red stripes are warmer. The coolest year was 1983, at -6.4 C (20.5 F), and the warmest was 1980, at -1.7 C (29.0 F). The strongest colour marks a difference of 3.0 C (5.4 F).
Annual mean temperature at Sisimiut as warming stripes, 1961 to 1998
Year
Annual mean temperature
Difference from the station mean
1961
-3.3 C
+0.15 C
1964
-3.2 C
+0.25 C
1965
-2.0 C
+1.46 C
1966
-2.7 C
+0.70 C
1967
-3.7 C
-0.32 C
1968
-3.2 C
+0.21 C
1969
-2.8 C
+0.65 C
1970
-3.8 C
-0.34 C
1971
-5.2 C
-1.82 C
1972
-5.7 C
-2.26 C
1973
-3.4 C
+0.06 C
1974
-3.5 C
-0.04 C
1975
-4.0 C
-0.58 C
1978
-3.3 C
+0.11 C
1979
-1.9 C
+1.47 C
1980
-1.7 C
+1.76 C
1981
-3.5 C
-0.04 C
1983
-6.4 C
-2.96 C
1985
-1.9 C
+1.56 C
1986
-2.6 C
+0.79 C
1987
-3.8 C
-0.34 C
1988
-2.5 C
+0.89 C
1994
-4.7 C
-1.25 C
1995
-3.9 C
-0.44 C
1997
-3.5 C
-0.05 C
1998
-3.0 C
+0.44 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
1961 to 2001
Yearly extremes at Sisimiut: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
23.8 C (74.8 F)
1968
17.5 C (63.5 F)
41
Coldest night (TNn)
-38.8 C (-37.8 F)
1984
-29.0 C (-20.2 F)
41
Wettest day (Rx1day)
93.2 mm (3.7 in)
1976
39.0 mm (1.5 in)
41
Wettest five days (Rx5day)
193.5 mm (7.6 in)
1976
61.9 mm (2.4 in)
40
Longest dry spell (CDD)
58 days
1990
26 days
41
Hottest day (TXx)
The hottest day of the year at Sisimiut, 1961 to 2001. The record is 23.8 C (74.8 F) in 1968, marked on the chart; the median year is 17.5 C (63.5 F).
Hottest day (TXx) at Sisimiut by year
Year
Hottest day (TXx)
1961
18.7 C (65.7 F)
1962
17.5 C (63.5 F)
1963
16.6 C (61.9 F)
1964
20.5 C (68.9 F)
1965
17.3 C (63.1 F)
1966
17.6 C (63.7 F)
1967
15.7 C (60.3 F)
1968
23.8 C (74.8 F)
1969
17.0 C (62.6 F)
1970
19.0 C (66.2 F)
1971
16.1 C (61.0 F)
1972
15.5 C (59.9 F)
1973
20.2 C (68.4 F)
1974
18.5 C (65.3 F)
1975
17.7 C (63.9 F)
1976
15.1 C (59.2 F)
1977
18.8 C (65.8 F)
1978
19.8 C (67.6 F)
1979
19.0 C (66.2 F)
1980
17.5 C (63.5 F)
1981
15.2 C (59.4 F)
1982
16.8 C (62.2 F)
1983
19.0 C (66.2 F)
1984
19.5 C (67.1 F)
1985
21.0 C (69.8 F)
1986
22.0 C (71.6 F)
1987
16.4 C (61.5 F)
1988
15.2 C (59.4 F)
1989
15.8 C (60.4 F)
1990
16.8 C (62.2 F)
1991
18.5 C (65.3 F)
1992
16.2 C (61.2 F)
1993
16.0 C (60.8 F)
1994
16.5 C (61.7 F)
1995
17.9 C (64.2 F)
1996
16.8 C (62.2 F)
1997
16.9 C (62.4 F)
1998
18.5 C (65.3 F)
1999
18.3 C (64.9 F)
2000
17.7 C (63.9 F)
2001
11.3 C (52.3 F)
Coldest night (TNn)
The coldest night of the year at Sisimiut, 1961 to 2001. The record is -38.8 C (-37.8 F) in 1984, marked on the chart; the median year is -29.0 C (-20.2 F).
Coldest night (TNn) at Sisimiut by year
Year
Coldest night (TNn)
1961
-26.0 C (-14.8 F)
1962
-30.6 C (-23.1 F)
1963
-24.9 C (-12.8 F)
1964
-31.4 C (-24.5 F)
1965
-25.0 C (-13.0 F)
1966
-24.0 C (-11.2 F)
1967
-25.2 C (-13.4 F)
1968
-31.2 C (-24.2 F)
1969
-31.6 C (-24.9 F)
1970
-27.5 C (-17.5 F)
1971
-31.6 C (-24.9 F)
1972
-31.4 C (-24.5 F)
1973
-28.1 C (-18.6 F)
1974
-26.3 C (-15.3 F)
1975
-28.0 C (-18.4 F)
1976
-30.0 C (-22.0 F)
1977
-24.8 C (-12.6 F)
1978
-22.8 C (-9.0 F)
1979
-25.6 C (-14.1 F)
1980
-21.5 C (-6.7 F)
1981
-30.7 C (-23.3 F)
1982
-33.0 C (-27.4 F)
1983
-35.0 C (-31.0 F)
1984
-38.8 C (-37.8 F)
1985
-27.0 C (-16.6 F)
1986
-26.0 C (-14.8 F)
1987
-31.8 C (-25.2 F)
1988
-25.2 C (-13.4 F)
1989
-36.6 C (-33.9 F)
1990
-28.1 C (-18.6 F)
1991
-29.0 C (-20.2 F)
1992
-38.5 C (-37.3 F)
1993
-37.8 C (-36.0 F)
1994
-31.3 C (-24.3 F)
1995
-32.1 C (-25.8 F)
1996
-29.5 C (-21.1 F)
1997
-33.7 C (-28.7 F)
1998
-32.9 C (-27.2 F)
1999
-27.5 C (-17.5 F)
2000
-25.3 C (-13.5 F)
2001
-25.6 C (-14.1 F)
Wettest day (Rx1day)
The wettest day of the year at Sisimiut, 1961 to 2001. The record is 93.2 mm (3.7 in) in 1976, marked on the chart; the median year is 39.0 mm (1.5 in).
Wettest day (Rx1day) at Sisimiut by year
Year
Wettest day (Rx1day)
1961
19.3 mm (0.8 in)
1962
35.3 mm (1.4 in)
1963
13.2 mm (0.5 in)
1964
24.7 mm (1.0 in)
1965
14.9 mm (0.6 in)
1966
22.8 mm (0.9 in)
1967
35.1 mm (1.4 in)
1968
42.4 mm (1.7 in)
1969
45.1 mm (1.8 in)
1970
29.2 mm (1.1 in)
1971
39.9 mm (1.6 in)
1972
43.9 mm (1.7 in)
1973
52.8 mm (2.1 in)
1974
59.0 mm (2.3 in)
1975
26.0 mm (1.0 in)
1976
93.2 mm (3.7 in)
1977
43.0 mm (1.7 in)
1978
32.2 mm (1.3 in)
1979
28.0 mm (1.1 in)
1980
21.5 mm (0.8 in)
1981
48.5 mm (1.9 in)
1982
51.2 mm (2.0 in)
1983
68.0 mm (2.7 in)
1984
33.0 mm (1.3 in)
1985
54.2 mm (2.1 in)
1986
82.0 mm (3.2 in)
1987
55.0 mm (2.2 in)
1988
39.0 mm (1.5 in)
1989
55.0 mm (2.2 in)
1990
41.2 mm (1.6 in)
1991
49.0 mm (1.9 in)
1992
19.2 mm (0.8 in)
1993
24.0 mm (0.9 in)
1994
18.0 mm (0.7 in)
1995
24.0 mm (0.9 in)
1996
41.0 mm (1.6 in)
1997
30.0 mm (1.2 in)
1998
58.0 mm (2.3 in)
1999
60.0 mm (2.4 in)
2000
18.0 mm (0.7 in)
2001
38.0 mm (1.5 in)
Wettest five days (Rx5day)
The wettest five days of the year at Sisimiut, 1961 to 2001. The record is 193.5 mm (7.6 in) in 1976, marked on the chart; the median year is 61.9 mm (2.4 in).
Wettest five days (Rx5day) at Sisimiut by year
Year
Wettest five days (Rx5day)
1961
32.1 mm (1.3 in)
1962
41.1 mm (1.6 in)
1963
21.7 mm (0.9 in)
1964
44.5 mm (1.8 in)
1965
37.3 mm (1.5 in)
1966
35.9 mm (1.4 in)
1967
105.1 mm (4.1 in)
1968
61.8 mm (2.4 in)
1969
80.1 mm (3.2 in)
1970
92.7 mm (3.6 in)
1971
68.0 mm (2.7 in)
1972
93.5 mm (3.7 in)
1973
89.3 mm (3.5 in)
1974
68.8 mm (2.7 in)
1975
51.9 mm (2.0 in)
1976
193.5 mm (7.6 in)
1977
63.7 mm (2.5 in)
1978
59.3 mm (2.3 in)
1979
50.0 mm (2.0 in)
1980
45.6 mm (1.8 in)
1981
62.0 mm (2.4 in)
1982
61.7 mm (2.4 in)
1983
97.1 mm (3.8 in)
1984
50.8 mm (2.0 in)
1985
62.1 mm (2.4 in)
1986
150.0 mm (5.9 in)
1987
71.0 mm (2.8 in)
1988
67.4 mm (2.7 in)
1989
64.7 mm (2.5 in)
1990
77.5 mm (3.1 in)
1991
83.8 mm (3.3 in)
1992
32.5 mm (1.3 in)
1993
37.0 mm (1.5 in)
1994
33.0 mm (1.3 in)
1995
22.3 mm (0.9 in)
1996
69.5 mm (2.7 in)
1997
39.0 mm (1.5 in)
1998
72.8 mm (2.9 in)
1999
50.0 mm (2.0 in)
2000
21.0 mm (0.8 in)
2001
n/a
Longest dry spell (CDD)
The longest dry spell of the year at Sisimiut, 1961 to 2001. The record is 58 days in 1990, marked on the chart; the median year is 26 days.
Longest dry spell (CDD) at Sisimiut by year
Year
Longest dry spell (CDD)
1961
34 days
1962
26 days
1963
42 days
1964
42 days
1965
41 days
1966
39 days
1967
20 days
1968
47 days
1969
28 days
1970
24 days
1971
26 days
1972
26 days
1973
21 days
1974
28 days
1975
23 days
1976
29 days
1977
36 days
1978
20 days
1979
17 days
1980
30 days
1981
24 days
1982
22 days
1983
30 days
1984
33 days
1985
46 days
1986
22 days
1987
21 days
1988
21 days
1989
29 days
1990
58 days
1991
42 days
1992
56 days
1993
21 days
1994
33 days
1995
3 days
1996
2 days
1997
24 days
1998
6 days
1999
4 days
2000
3 days
2001
2 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
26 years with a frost
Across 26 years with a frost, the median last spring frost at Sisimiut falls on 22 June and the median first autumn frost on 29 August, which leaves a median of 68 days between them.
Fitted over all years, the growing season changes by +7.7 days per decade at this station.
Frost dates and growing season at Sisimiut
Measure
Median, all years
Earliest period
Recent period (1961 to 1998)
Recent against earliest
Fitted trend
Last spring frost
22 June
n/a
22 June
n/a
-2.1 days per decade
First autumn frost
29 August
n/a
29 August
n/a
+5.6 days per decade
Growing days
68 days
n/a
68 days
n/a
+7.7 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, 1961 to 1992
A day with at least 38.7 mm (1.5 in) of rain is expected about once in 2 years. A day with at least 95.9 mm (3.8 in) of rain is expected about once in 100 years.
Rainfall return levels at Sisimiut: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
38.7 mm (1.5 in)
5 years
55.4 mm (2.2 in)
10 years
65.9 mm (2.6 in)
25 years
78.5 mm (3.1 in)
50 years
87.4 mm (3.4 in)
Longer than the 32 years of record
100 years
95.9 mm (3.8 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 1961 to 1992.
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: 93.2 mm (3.7 in) in 1976; 82.0 mm (3.2 in) in 1986; 68.0 mm (2.7 in) in 1983.
Download the Data
Data for Sisimiut standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Sisimiut 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.