Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Ilulissat. 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 Ilulissat, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
12.2 C (54.0 F)
-37.0 C (-34.6 F)
n/a
n/a
Feb
9.2 C (48.6 F)
-39.0 C (-38.2 F)
n/a
n/a
Mar
12.0 C (53.6 F)
-37.8 C (-36.0 F)
n/a
n/a
Apr
10.2 C (50.4 F)
-29.5 C (-21.1 F)
n/a
n/a
May
16.5 C (61.7 F)
-21.1 C (-6.0 F)
n/a
n/a
Jun
18.0 C (64.4 F)
-9.0 C (15.8 F)
n/a
n/a
Jul
20.6 C (69.1 F)
-2.5 C (27.5 F)
n/a
n/a
Aug
20.4 C (68.7 F)
-3.0 C (26.6 F)
n/a
n/a
Sep
16.1 C (61.0 F)
-9.4 C (15.1 F)
n/a
n/a
Oct
12.4 C (54.3 F)
-21.0 C (-5.8 F)
n/a
n/a
Nov
11.4 C (52.5 F)
-27.5 C (-17.5 F)
n/a
n/a
Dec
11.6 C (52.9 F)
-34.0 C (-29.2 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Ilulissat still stand. 1984 holds the most, with 116.
Standing records at Ilulissat by the year they were set
Year set
Standing records
1961
28
1962
48
1963
45
1964
58
1965
34
1966
37
1967
37
1968
33
1969
46
1970
50
1971
70
1972
65
1973
34
1974
36
1975
34
1976
34
1977
35
1978
54
1979
30
1980
38
1981
31
1982
46
1983
114
1984
116
1985
44
1986
37
1987
40
1988
33
1989
45
1990
32
1991
40
1992
40
Wettest Day of Each Month
Jul: 59.0 mm (2.3 in)
The wettest day on record for each calendar month at Ilulissat. The most was 59.0 mm (2.3 in) on 22 July 1966.
Record daily precipitation for each month at Ilulissat
Month
Record daily precipitation (mm)
Date
Jan
21.0 mm (0.8 in)
4 January 1982
Feb
17.1 mm (0.7 in)
21 February 1981
Mar
19.0 mm (0.7 in)
12 March 1990
Apr
32.0 mm (1.3 in)
8 April 1973
May
20.0 mm (0.8 in)
21 May 1961
Jun
44.0 mm (1.7 in)
27 June 1991
Jul
59.0 mm (2.3 in)
22 July 1966
Aug
44.0 mm (1.7 in)
21 August 1991
Sep
29.0 mm (1.1 in)
5 September 1967
Oct
31.8 mm (1.3 in)
13 October 1978
Nov
23.0 mm (0.9 in)
21 November 1990
Dec
14.1 mm (0.6 in)
21 December 1979
Period of Record Coverage
1961 to 1992
Complete yearUnder 90 percent of days
32 years of record at Ilulissat, 1961 to 1992. 8 years have data for under 90 percent of days and are left out of rankings: 1982, 1983, 1984, 1985, 1986, 1987, 1991, 1992.
Cooler than the station meanWarmer than the station mean
One stripe for each of 29 complete years at Ilulissat, 1961 to 1991. Blue stripes are years cooler than the station's own mean of -4.5 C (23.9 F); red stripes are warmer. The coolest year was 1984, at -8.5 C (16.7 F), and the warmest was 1985, at -2.2 C (28.0 F). The strongest colour marks a difference of 4.1 C (7.4 F).
Annual mean temperature at Ilulissat as warming stripes, 1961 to 1991
Year
Annual mean temperature
Difference from the station mean
1961
-5.1 C
-0.55 C
1962
-2.9 C
+1.64 C
1963
-2.9 C
+1.59 C
1964
-4.5 C
-0.04 C
1965
-3.0 C
+1.53 C
1966
-4.4 C
+0.15 C
1967
-4.4 C
+0.06 C
1968
-3.9 C
+0.58 C
1969
-3.5 C
+0.99 C
1970
-4.9 C
-0.38 C
1971
-6.5 C
-2.04 C
1972
-6.1 C
-1.57 C
1973
-4.3 C
+0.20 C
1974
-4.5 C
-0.02 C
1975
-5.2 C
-0.71 C
1977
-2.7 C
+1.83 C
1978
-3.6 C
+0.87 C
1979
-3.4 C
+1.07 C
1980
-2.4 C
+2.15 C
1981
-4.0 C
+0.49 C
1982
-5.0 C
-0.53 C
1983
-8.5 C
-3.99 C
1984
-8.5 C
-4.01 C
1985
-2.2 C
+2.28 C
1986
-3.5 C
+1.03 C
1988
-3.5 C
+0.99 C
1989
-6.6 C
-2.06 C
1990
-5.5 C
-0.97 C
1991
-5.0 C
-0.52 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 1992
Yearly extremes at Ilulissat: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
20.6 C (69.1 F)
1977
17.7 C (63.8 F)
32
Coldest night (TNn)
-39.0 C (-38.2 F)
1984
-30.9 C (-23.6 F)
32
Wettest day (Rx1day)
59.0 mm (2.3 in)
1966
22.0 mm (0.9 in)
31
Wettest five days (Rx5day)
72.3 mm (2.8 in)
1967
39.1 mm (1.5 in)
31
Longest dry spell (CDD)
60 days
1968
33 days
31
Hottest day (TXx)
The hottest day of the year at Ilulissat, 1961 to 1992. The record is 20.6 C (69.1 F) in 1977, marked on the chart; the median year is 17.7 C (63.8 F).
Hottest day (TXx) at Ilulissat by year
Year
Hottest day (TXx)
1961
19.3 C (66.7 F)
1962
17.5 C (63.5 F)
1963
17.3 C (63.1 F)
1964
18.4 C (65.1 F)
1965
17.7 C (63.9 F)
1966
16.4 C (61.5 F)
1967
15.4 C (59.7 F)
1968
20.4 C (68.7 F)
1969
18.5 C (65.3 F)
1970
17.6 C (63.7 F)
1971
18.0 C (64.4 F)
1972
14.0 C (57.2 F)
1973
17.7 C (63.9 F)
1974
17.6 C (63.7 F)
1975
20.0 C (68.0 F)
1976
19.0 C (66.2 F)
1977
20.6 C (69.1 F)
1978
19.4 C (66.9 F)
1979
17.5 C (63.5 F)
1980
17.0 C (62.6 F)
1981
18.8 C (65.8 F)
1982
17.8 C (64.0 F)
1983
17.0 C (62.6 F)
1984
17.4 C (63.3 F)
1985
16.3 C (61.3 F)
1986
14.2 C (57.6 F)
1987
17.8 C (64.0 F)
1988
18.0 C (64.4 F)
1989
16.0 C (60.8 F)
1990
18.4 C (65.1 F)
1991
16.2 C (61.2 F)
1992
17.2 C (63.0 F)
Coldest night (TNn)
The coldest night of the year at Ilulissat, 1961 to 1992. The record is -39.0 C (-38.2 F) in 1984, marked on the chart; the median year is -30.9 C (-23.6 F).
Coldest night (TNn) at Ilulissat by year
Year
Coldest night (TNn)
1961
-34.2 C (-29.6 F)
1962
-27.4 C (-17.3 F)
1963
-26.8 C (-16.2 F)
1964
-32.7 C (-26.9 F)
1965
-26.3 C (-15.3 F)
1966
-30.3 C (-22.5 F)
1967
-28.2 C (-18.8 F)
1968
-33.6 C (-28.5 F)
1969
-33.8 C (-28.8 F)
1970
-32.6 C (-26.7 F)
1971
-34.0 C (-29.2 F)
1972
-32.4 C (-26.3 F)
1973
-30.2 C (-22.4 F)
1974
-31.5 C (-24.7 F)
1975
-31.0 C (-23.8 F)
1976
-29.4 C (-20.9 F)
1977
-26.4 C (-15.5 F)
1978
-25.7 C (-14.3 F)
1979
-30.8 C (-23.4 F)
1980
-25.5 C (-13.9 F)
1981
-30.5 C (-22.9 F)
1982
-33.3 C (-27.9 F)
1983
-37.7 C (-35.9 F)
1984
-39.0 C (-38.2 F)
1985
-24.4 C (-11.9 F)
1986
-24.1 C (-11.4 F)
1987
-29.7 C (-21.5 F)
1988
-27.0 C (-16.6 F)
1989
-37.8 C (-36.0 F)
1990
-33.6 C (-28.5 F)
1991
-34.0 C (-29.2 F)
1992
-34.2 C (-29.6 F)
Wettest day (Rx1day)
The wettest day of the year at Ilulissat, 1961 to 1992. The record is 59.0 mm (2.3 in) in 1966, marked on the chart; the median year is 22.0 mm (0.9 in).
Wettest day (Rx1day) at Ilulissat by year
Year
Wettest day (Rx1day)
1961
26.7 mm (1.1 in)
1962
16.5 mm (0.6 in)
1963
14.8 mm (0.6 in)
1964
24.5 mm (1.0 in)
1965
10.5 mm (0.4 in)
1966
59.0 mm (2.3 in)
1967
29.0 mm (1.1 in)
1968
31.3 mm (1.2 in)
1969
13.5 mm (0.5 in)
1970
27.4 mm (1.1 in)
1971
12.9 mm (0.5 in)
1972
16.8 mm (0.7 in)
1973
32.0 mm (1.3 in)
1974
18.6 mm (0.7 in)
1975
28.1 mm (1.1 in)
1976
21.2 mm (0.8 in)
1977
13.2 mm (0.5 in)
1978
31.8 mm (1.3 in)
1979
14.1 mm (0.6 in)
1980
11.3 mm (0.4 in)
1981
22.5 mm (0.9 in)
1982
24.0 mm (0.9 in)
1983
17.2 mm (0.7 in)
1984
38.2 mm (1.5 in)
1985
18.0 mm (0.7 in)
1986
31.0 mm (1.2 in)
1987
22.0 mm (0.9 in)
1988
21.0 mm (0.8 in)
1989
15.0 mm (0.6 in)
1990
23.0 mm (0.9 in)
1991
44.0 mm (1.7 in)
1992
n/a
Wettest five days (Rx5day)
The wettest five days of the year at Ilulissat, 1961 to 1992. The record is 72.3 mm (2.8 in) in 1967, marked on the chart; the median year is 39.1 mm (1.5 in).
Wettest five days (Rx5day) at Ilulissat by year
Year
Wettest five days (Rx5day)
1961
32.3 mm (1.3 in)
1962
26.7 mm (1.1 in)
1963
22.0 mm (0.9 in)
1964
40.5 mm (1.6 in)
1965
12.4 mm (0.5 in)
1966
65.2 mm (2.6 in)
1967
72.3 mm (2.8 in)
1968
42.0 mm (1.7 in)
1969
33.7 mm (1.3 in)
1970
39.1 mm (1.5 in)
1971
30.9 mm (1.2 in)
1972
29.7 mm (1.2 in)
1973
58.2 mm (2.3 in)
1974
42.6 mm (1.7 in)
1975
42.4 mm (1.7 in)
1976
55.4 mm (2.2 in)
1977
30.5 mm (1.2 in)
1978
61.1 mm (2.4 in)
1979
22.7 mm (0.9 in)
1980
21.0 mm (0.8 in)
1981
39.8 mm (1.6 in)
1982
49.4 mm (1.9 in)
1983
26.2 mm (1.0 in)
1984
45.5 mm (1.8 in)
1985
9.0 mm (0.35 in)
1986
42.9 mm (1.7 in)
1987
22.0 mm (0.9 in)
1988
42.0 mm (1.7 in)
1989
20.3 mm (0.8 in)
1990
30.5 mm (1.2 in)
1991
67.0 mm (2.6 in)
1992
n/a
Longest dry spell (CDD)
The longest dry spell of the year at Ilulissat, 1961 to 1992. The record is 60 days in 1968, marked on the chart; the median year is 33 days.
Longest dry spell (CDD) at Ilulissat by year
Year
Longest dry spell (CDD)
1961
26 days
1962
36 days
1963
45 days
1964
42 days
1965
40 days
1966
45 days
1967
33 days
1968
60 days
1969
27 days
1970
31 days
1971
34 days
1972
35 days
1973
33 days
1974
33 days
1975
25 days
1976
50 days
1977
25 days
1978
16 days
1979
44 days
1980
34 days
1981
29 days
1982
33 days
1983
23 days
1984
38 days
1985
20 days
1986
12 days
1987
18 days
1988
5 days
1989
13 days
1990
15 days
1991
6 days
1992
n/a
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
29 years with a frost
Across 29 years with a frost, the median last spring frost at Ilulissat falls on 12 June and the median first autumn frost on 26 August, which leaves a median of 75 days between them.
Fitted over all years, the growing season changes by +10.2 days per decade at this station.
Frost dates and growing season at Ilulissat
Measure
Median, all years
Earliest period
Recent period (1961 to 1991)
Recent against earliest
Fitted trend
Last spring frost
12 June
n/a
12 June
n/a
-3.0 days per decade
First autumn frost
26 August
n/a
26 August
n/a
+7.2 days per decade
Growing days
75 days
n/a
75 days
n/a
+10.2 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.
Download the Data
Data for Ilulissat standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Ilulissat 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 2026-10-12 (12 October 2026). Records are computed by this site and are not official.