Ikerasassuaq Weather Records (GLM00004390)

Record envelope, standing records and threshold days for Ikerasassuaq (GLM00004390), Greenland [Denmark], with 67 years of record.

Key Facts for Ikerasassuaq

Ikerasassuaq (GLM00004390) is a weather station in Greenland [Denmark] at 60.03 latitude and -43.12 longitude, 26 m (85 ft) above sea level.
The station reports from 1955 to 2021, 67 years of record.
1,464 records set at Ikerasassuaq still stand.
Records are tracked for tmax, tmin: an element needs 30 years of data to be eligible.
Ikerasassuaq set a daily record high maximum temperature of 2.5 C (36.5 F) on 13 January 2021.

About the Station

Location: Greenland [Denmark], 60.03 latitude, -43.12 longitude.
Elevation: 26 m (85 ft).
Period of record: 1955 to 2021, 67 years.
Eligible elements: tmax, tmin.

Daily Record Envelope and 2026

0 days at or beyond a record

The band shows the record high and record low for each calendar day at Ikerasassuaq. 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 Ikerasassuaq, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	12.8 C (55.0 F)	-15.3 C (4.5 F)	n/a	n/a
Feb	6.0 C (42.8 F)	-15.5 C (4.1 F)	n/a	n/a
Mar	9.0 C (48.2 F)	-22.0 C (-7.6 F)	n/a	n/a
Apr	12.1 C (53.8 F)	-11.0 C (12.2 F)	n/a	n/a
May	18.8 C (65.8 F)	-10.2 C (13.6 F)	n/a	n/a
Jun	19.0 C (66.2 F)	-6.0 C (21.2 F)	n/a	n/a
Jul	22.8 C (73.0 F)	-3.0 C (26.6 F)	n/a	n/a
Aug	22.8 C (73.0 F)	-4.0 C (24.8 F)	n/a	n/a
Sep	20.0 C (68.0 F)	-5.7 C (21.7 F)	n/a	n/a
Oct	16.2 C (61.2 F)	-5.9 C (21.4 F)	n/a	n/a
Nov	14.2 C (57.6 F)	-11.0 C (12.2 F)	n/a	n/a
Dec	14.2 C (57.6 F)	-15.9 C (3.4 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Ikerasassuaq still stand. 2010 holds the most, with 88.

Standing records at Ikerasassuaq by the year they were set
Year set	Standing records
1955	40
1956	51
1957	11
1958	26
1973	24
1974	31
1975	53
1976	55
1977	20
1978	43
1979	35
1980	30
1981	29
1982	4
1992	13
1993	65
1994	45
1995	30
1996	49
1997	53
1998	34
1999	36
2000	31
2001	40
2002	36
2003	34
2004	36
2005	71
2006	31
2007	29
2008	45
2009	15
2010	88
2011	33
2012	41
2013	15
2014	22
2015	32
2016	26
2017	28
2018	10
2019	13
2020	9
2021	2

Wettest Day of Each Month

Apr: 151.9 mm (6.0 in)

The wettest day on record for each calendar month at Ikerasassuaq. The most was 151.9 mm (6.0 in) on 27 April 2015.

Record daily precipitation for each month at Ikerasassuaq
Month	Record daily precipitation (mm)	Date
Jan	136.9 mm (5.4 in)	30 January 2015
Feb	99.3 mm (3.9 in)	26 February 2014
Mar	134.9 mm (5.3 in)	1 March 2014
Apr	151.9 mm (6.0 in)	27 April 2015
May	124.0 mm (4.9 in)	2 May 2015
Jun	100.1 mm (3.9 in)	9 June 2005
Jul	97.0 mm (3.8 in)	20 July 1977
Aug	89.2 mm (3.5 in)	12 August 2007
Sep	103.1 mm (4.1 in)	18 September 1976
Oct	127.0 mm (5.0 in)	30 October 1993
Nov	97.3 mm (3.8 in)	23 November 2014
Dec	142.0 mm (5.6 in)	9 December 2016

Period of Record Coverage

1955 to 2021

44 years of record at Ikerasassuaq, 1955 to 2021. 40 years have data for under 90 percent of days and are left out of rankings: 1955, 1956, 1957, 1958, 1973, 1974, 1975, 1976 and others.

Days with data per year at Ikerasassuaq
Year	Days with data	Share of year	Complete
1955	231	63%	No
1956	305	83%	No
1957	152	42%	No
1958	292	80%	No
1973	230	63%	No
1974	218	60%	No
1975	277	76%	No
1976	264	72%	No
1977	265	73%	No
1978	282	77%	No
1979	286	78%	No
1980	196	54%	No
1981	159	44%	No
1982	11	3%	No
1992	76	21%	No
1993	323	88%	No
1994	273	75%	No
1995	273	75%	No
1996	284	78%	No
1997	324	89%	No
1998	323	88%	No
1999	330	90%	Yes
2000	341	93%	Yes
2001	338	93%	Yes
2002	324	89%	No
2003	330	90%	Yes
2004	316	86%	No
2005	318	87%	No
2006	323	88%	No
2007	294	81%	No
2008	287	78%	No
2009	284	78%	No
2010	308	84%	No
2011	308	84%	No
2012	284	78%	No
2013	217	59%	No
2014	272	75%	No
2015	297	81%	No
2016	308	84%	No
2017	312	85%	No
2018	160	44%	No
2019	248	68%	No
2020	191	52%	No
2021	61	17%	No

Latest Records

Latest records at Ikerasassuaq
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
13 January 2021	Ikerasassuaq, GL	daily high max	2.5 C (36.5 F)	0.5 C (0.9 F)	41 years	19 of 100 (Routine)
8 January 2021	Ikerasassuaq, GL	daily high max	7.1 C (44.8 F)	3.2 C (5.8 F)	65 years	35 of 100 (Notable)
27 December 2020	Ikerasassuaq, GL	daily high min	0.4 C (32.7 F)	0.4 C (0.7 F)	44 years	20 of 100 (Routine)
11 July 2020	Ikerasassuaq, GL	daily high max	15.5 C (59.9 F)	1.6 C (2.9 F)	20 years	17 of 100 (Routine)
10 July 2020	Ikerasassuaq, GL	daily high min	7.6 C (45.7 F)	0.2 C (0.4 F)	20 years	12 of 100 (Routine)
22 June 2020	Ikerasassuaq, GL	daily high max	15.1 C (59.2 F)	0.4 C (0.7 F)	13 years	10 of 100 (Routine)
6 April 2020	Ikerasassuaq, GL	daily low min	-9.7 C (14.5 F)	3.6 C (6.5 F)	23 years	27 of 100 (Routine)
5 April 2020	Ikerasassuaq, GL	daily low min	-7.5 C (18.5 F)	1.3 C (2.3 F)	20 years	17 of 100 (Routine)
16 March 2020	Ikerasassuaq, GL	daily low min	-9.3 C (15.3 F)	0.3 C (0.5 F)	9 years	8 of 100 (Routine)
7 March 2020	Ikerasassuaq, GL	daily high max	2.5 C (36.5 F)	0.3 C (0.5 F)	15 years	10 of 100 (Routine)
6 January 2020	Ikerasassuaq, GL	daily low min	-11.0 C (12.2 F)	1.0 C (1.8 F)	44 years	22 of 100 (Routine)
22 October 2019	Ikerasassuaq, GL	daily high max	7.1 C (44.8 F)	0.1 C (0.2 F)	14 years	10 of 100 (Routine)
8 October 2019	Ikerasassuaq, GL	daily high max	9.8 C (49.6 F)	0.9 C (1.6 F)	6 years	11 of 100 (Routine)
7 October 2019	Ikerasassuaq, GL	daily high min	5.0 C (41.0 F)	1.1 C (2.0 F)	12 years	14 of 100 (Routine)
7 October 2019	Ikerasassuaq, GL	daily high max	10.4 C (50.7 F)	0.1 C (0.2 F)	8 years	8 of 100 (Routine)
5 October 2019	Ikerasassuaq, GL	daily high min	4.8 C (40.6 F)	0.9 C (1.6 F)	60 years	28 of 100 (Routine)
8 September 2019	Ikerasassuaq, GL	daily high min	8.1 C (46.6 F)	0.9 C (1.6 F)	5 years	11 of 100 (Routine)
28 August 2019	Ikerasassuaq, GL	daily high min (Tie)	7.0 C (44.6 F)	tie	8 years	2 of 100 (Routine)
27 August 2019	Ikerasassuaq, GL	daily high max	15.1 C (59.2 F)	0.7 C (1.3 F)	14 years	12 of 100 (Routine)
4 July 2019	Ikerasassuaq, GL	daily high min	6.8 C (44.2 F)	1.5 C (2.7 F)	13 years	16 of 100 (Routine)

Climate Trend

12 complete years, 1993 to 2016

One stripe for each of 12 complete years at Ikerasassuaq, 1993 to 2016. Blue stripes are years cooler than the station's own mean of 1.6 C (34.8 F); red stripes are warmer. The coolest year was 1993, at -0.3 C (31.5 F), and the warmest was 2010, at 3.7 C (38.6 F). The strongest colour marks a difference of 2.2 C (4.0 F).

Annual mean temperature at Ikerasassuaq as warming stripes, 1993 to 2016
Year	Annual mean temperature	Difference from the station mean
1993	-0.3 C	-1.83 C
1997	0.8 C	-0.78 C
1998	0.9 C	-0.71 C
1999	0.7 C	-0.91 C
2000	1.7 C	+0.16 C
2001	1.8 C	+0.27 C
2002	1.6 C	+0.06 C
2003	2.4 C	+0.83 C
2006	1.9 C	+0.31 C
2010	3.7 C	+2.11 C
2011	1.3 C	-0.27 C
2016	2.3 C	+0.73 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

1955 to 2021

Yearly extremes at Ikerasassuaq: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	22.8 C (73.0 F)	2005	18.0 C (64.3 F)	44
Coldest night (TNn)	-22.0 C (-7.6 F)	1979	-12.0 C (10.3 F)	44
Wettest day (Rx1day)	151.9 mm (6.0 in)	2015	81.8 mm (3.2 in)	42
Wettest five days (Rx5day)	408.5 mm (16.1 in)	2016	155.8 mm (6.1 in)	40
Longest dry spell (CDD)	19 days	2011	9 days	40

Hottest day (TXx)

The hottest day of the year at Ikerasassuaq, 1955 to 2021. The record is 22.8 C (73.0 F) in 2005, marked on the chart; the median year is 18.0 C (64.3 F).

Hottest day (TXx) at Ikerasassuaq by year
Year	Hottest day (TXx)
1955	17.8 C (64.0 F)
1956	16.1 C (61.0 F)
1957	15.0 C (59.0 F)
1958	18.9 C (66.0 F)
1973	13.0 C (55.4 F)
1974	14.0 C (57.2 F)
1975	20.0 C (68.0 F)
1976	18.0 C (64.4 F)
1977	18.0 C (64.4 F)
1978	19.0 C (66.2 F)
1979	17.0 C (62.6 F)
1980	16.0 C (60.8 F)
1981	19.0 C (66.2 F)
1982	14.0 C (57.2 F)
1992	8.9 C (48.0 F)
1993	18.5 C (65.3 F)
1994	18.3 C (64.9 F)
1995	16.7 C (62.1 F)
1996	20.0 C (68.0 F)
1997	16.7 C (62.1 F)
1998	20.6 C (69.1 F)
1999	16.1 C (61.0 F)
2000	21.1 C (70.0 F)
2001	15.3 C (59.5 F)
2002	17.6 C (63.7 F)
2003	18.8 C (65.8 F)
2004	20.3 C (68.5 F)
2005	22.8 C (73.0 F)
2006	17.4 C (63.3 F)
2007	18.1 C (64.6 F)
2008	19.0 C (66.2 F)
2009	15.7 C (60.3 F)
2010	21.4 C (70.5 F)
2011	19.7 C (67.5 F)
2012	17.6 C (63.7 F)
2013	17.9 C (64.2 F)
2014	22.8 C (73.0 F)
2015	22.1 C (71.8 F)
2016	20.5 C (68.9 F)
2017	21.0 C (69.8 F)
2018	11.7 C (53.1 F)
2019	15.1 C (59.2 F)
2020	15.9 C (60.6 F)
2021	9.8 C (49.6 F)

Coldest night (TNn)

The coldest night of the year at Ikerasassuaq, 1955 to 2021. The record is -22.0 C (-7.6 F) in 1979, marked on the chart; the median year is -12.0 C (10.3 F).

Coldest night (TNn) at Ikerasassuaq by year
Year	Coldest night (TNn)
1955	-8.9 C (16.0 F)
1956	-12.8 C (9.0 F)
1957	-10.0 C (14.0 F)
1958	-12.2 C (10.0 F)
1973	-14.0 C (6.8 F)
1974	-12.0 C (10.4 F)
1975	-19.0 C (-2.2 F)
1976	-15.0 C (5.0 F)
1977	-11.0 C (12.2 F)
1978	-13.0 C (8.6 F)
1979	-22.0 C (-7.6 F)
1980	-15.0 C (5.0 F)
1981	-11.0 C (12.2 F)
1982	-10.0 C (14.0 F)
1992	-15.3 C (4.5 F)
1993	-15.5 C (4.1 F)
1994	-13.2 C (8.2 F)
1995	-13.5 C (7.7 F)
1996	-11.5 C (11.3 F)
1997	-16.9 C (1.6 F)
1998	-12.3 C (9.9 F)
1999	-12.1 C (10.2 F)
2000	-10.8 C (12.6 F)
2001	-12.2 C (10.0 F)
2002	-11.8 C (10.8 F)
2003	-11.4 C (11.5 F)
2004	-9.0 C (15.8 F)
2005	-10.7 C (12.7 F)
2006	-9.3 C (15.3 F)
2007	-11.2 C (11.8 F)
2008	-14.1 C (6.6 F)
2009	-10.4 C (13.3 F)
2010	-10.3 C (13.5 F)
2011	-12.9 C (8.8 F)
2012	-15.9 C (3.4 F)
2013	-11.3 C (11.7 F)
2014	-8.8 C (16.2 F)
2015	-12.5 C (9.5 F)
2016	-15.3 C (4.5 F)
2017	-11.9 C (10.6 F)
2018	-13.5 C (7.7 F)
2019	-7.4 C (18.7 F)
2020	-11.0 C (12.2 F)
2021	-9.3 C (15.3 F)

Wettest day (Rx1day)

The wettest day of the year at Ikerasassuaq, 1955 to 2021. The record is 151.9 mm (6.0 in) in 2015, marked on the chart; the median year is 81.8 mm (3.2 in).

Wettest day (Rx1day) at Ikerasassuaq by year
Year	Wettest day (Rx1day)
1955	71.9 mm (2.8 in)
1956	106.9 mm (4.2 in)
1957	71.9 mm (2.8 in)
1958	94.0 mm (3.7 in)
1973	101.1 mm (4.0 in)
1974	66.0 mm (2.6 in)
1975	103.9 mm (4.1 in)
1976	109.0 mm (4.3 in)
1977	97.0 mm (3.8 in)
1978	71.1 mm (2.8 in)
1979	104.9 mm (4.1 in)
1980	78.0 mm (3.1 in)
1981	48.0 mm (1.9 in)
1982	0.0 mm (0.00 in)
1992	8.9 mm (0.35 in)
1993	127.0 mm (5.0 in)
1994	55.1 mm (2.2 in)
1995	124.0 mm (4.9 in)
1996	57.9 mm (2.3 in)
1997	64.3 mm (2.5 in)
1998	54.1 mm (2.1 in)
1999	64.0 mm (2.5 in)
2000	67.1 mm (2.6 in)
2001	128.0 mm (5.0 in)
2002	62.0 mm (2.4 in)
2003	76.2 mm (3.0 in)
2004	67.1 mm (2.6 in)
2005	100.1 mm (3.9 in)
2006	96.0 mm (3.8 in)
2007	89.2 mm (3.5 in)
2008	64.0 mm (2.5 in)
2009	57.9 mm (2.3 in)
2010	90.4 mm (3.6 in)
2011	63.5 mm (2.5 in)
2012	85.6 mm (3.4 in)
2013	110.0 mm (4.3 in)
2014	134.9 mm (5.3 in)
2015	151.9 mm (6.0 in)
2016	142.0 mm (5.6 in)
2017	97.3 mm (3.8 in)
2018	88.1 mm (3.5 in)
2019	76.2 mm (3.0 in)
2020	n/a
2021	n/a

Wettest five days (Rx5day)

The wettest five days of the year at Ikerasassuaq, 1955 to 2021. The record is 408.5 mm (16.1 in) in 2016, marked on the chart; the median year is 155.8 mm (6.1 in).

Wettest five days (Rx5day) at Ikerasassuaq by year
Year	Wettest five days (Rx5day)
1955	153.9 mm (6.1 in)
1956	242.0 mm (9.5 in)
1957	87.6 mm (3.4 in)
1958	259.7 mm (10.2 in)
1973	133.0 mm (5.2 in)
1974	142.5 mm (5.6 in)
1975	192.8 mm (7.6 in)
1976	252.0 mm (9.9 in)
1977	208.8 mm (8.2 in)
1978	183.4 mm (7.2 in)
1979	176.0 mm (6.9 in)
1980	221.0 mm (8.7 in)
1981	85.9 mm (3.4 in)
1982	n/a
1992	n/a
1993	5.1 mm (0.20 in)
1994	60.2 mm (2.4 in)
1995	150.2 mm (5.9 in)
1996	137.4 mm (5.4 in)
1997	73.1 mm (2.9 in)
1998	60.9 mm (2.4 in)
1999	71.9 mm (2.8 in)
2000	28.7 mm (1.1 in)
2001	32.1 mm (1.3 in)
2002	62.6 mm (2.5 in)
2003	120.2 mm (4.7 in)
2004	79.2 mm (3.1 in)
2005	237.0 mm (9.3 in)
2006	174.0 mm (6.9 in)
2007	133.7 mm (5.3 in)
2008	123.2 mm (4.9 in)
2009	149.4 mm (5.9 in)
2010	188.4 mm (7.4 in)
2011	157.7 mm (6.2 in)
2012	294.9 mm (11.6 in)
2013	295.8 mm (11.6 in)
2014	356.1 mm (14.0 in)
2015	264.2 mm (10.4 in)
2016	408.5 mm (16.1 in)
2017	209.8 mm (8.3 in)
2018	203.6 mm (8.0 in)
2019	235.7 mm (9.3 in)
2020	n/a
2021	n/a

Longest dry spell (CDD)

The longest dry spell of the year at Ikerasassuaq, 1955 to 2021. The record is 19 days in 2011, marked on the chart; the median year is 9 days.

Longest dry spell (CDD) at Ikerasassuaq by year
Year	Longest dry spell (CDD)
1955	1 day
1956	n/a
1957	n/a
1958	1 day
1973	7 days
1974	6 days
1975	11 days
1976	14 days
1977	14 days
1978	9 days
1979	14 days
1980	12 days
1981	14 days
1982	1 day
1992	2 days
1993	10 days
1994	6 days
1995	9 days
1996	11 days
1997	8 days
1998	8 days
1999	8 days
2000	3 days
2001	1 day
2002	6 days
2003	8 days
2004	9 days
2005	14 days
2006	18 days
2007	10 days
2008	13 days
2009	13 days
2010	16 days
2011	19 days
2012	19 days
2013	5 days
2014	9 days
2015	9 days
2016	12 days
2017	12 days
2018	9 days
2019	12 days
2020	n/a
2021	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.

Download the Data

Data for Ikerasassuaq standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Ikerasassuaq 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.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).