Hornafjordur Weather Records (ICM00004082)

Record envelope, standing records and threshold days for Hornafjordur (ICM00004082), Iceland, with 53 years of record.

Key Facts for Hornafjordur

Hornafjordur (ICM00004082) is a weather station in Iceland at 64.30 latitude and -15.23 longitude, 7 m (24 ft) above sea level.
The station reports from 1973 to 2025, 53 years of record.
1,464 records set at Hornafjordur still stand.
Records are tracked for tmax, tmin: an element needs 30 years of data to be eligible.
Hornafjordur set a daily record high maximum temperature of 16.1 C (61.0 F) on 17 August 2025.

About the Station

Location: Iceland, 64.30 latitude, -15.23 longitude.
Elevation: 7 m (24 ft).
Period of record: 1973 to 2025, 53 years.
Eligible elements: tmax, tmin.

Daily Record Envelope and 2026

12 days at or beyond a record

The band shows the record high and record low for each calendar day at Hornafjordur. The lines show the 2026 daily maximum and minimum. 12 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Hornafjordur, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	15.9 C (60.6 F)	-15.3 C (4.5 F)	10.9 C (51.6 F)	-11.0 C (12.2 F)
Feb	12.5 C (54.5 F)	-12.1 C (10.2 F)	8.2 C (46.8 F)	-4.7 C (23.5 F)
Mar	16.0 C (60.8 F)	-15.2 C (4.6 F)	11.5 C (52.7 F)	-4.1 C (24.6 F)
Apr	17.0 C (62.6 F)	-9.1 C (15.6 F)	11.4 C (52.5 F)	-2.7 C (27.1 F)
May	21.4 C (70.5 F)	-5.6 C (21.9 F)	17.0 C (62.6 F)	3.5 C (38.3 F)
Jun	23.7 C (74.7 F)	-5.1 C (22.8 F)	15.0 C (59.0 F)	2.0 C (35.6 F)
Jul	23.8 C (74.8 F)	0.0 C (32.0 F)	18.0 C (64.4 F)	5.9 C (42.6 F)
Aug	22.9 C (73.2 F)	1.8 C (35.2 F)	16.1 C (61.0 F)	5.9 C (42.6 F)
Sep	19.7 C (67.5 F)	-5.5 C (22.1 F)	n/a	n/a
Oct	14.5 C (58.1 F)	-7.2 C (19.0 F)	n/a	n/a
Nov	15.0 C (59.0 F)	-10.7 C (12.7 F)	n/a	n/a
Dec	12.9 C (55.2 F)	-13.0 C (8.6 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Hornafjordur still stand. 2002 holds the most, with 68.

Standing records at Hornafjordur by the year they were set
Year set	Standing records
1974	3
1975	13
1976	2
1980	6
1981	7
1982	15
1983	15
1984	3
1985	38
1986	37
1987	37
1988	45
1989	43
1990	28
1991	33
1992	56
1993	40
1994	28
1995	34
1996	36
1997	41
1998	50
1999	33
2000	56
2001	44
2002	68
2003	57
2004	63
2005	44
2006	47
2007	30
2008	35
2009	32
2010	52
2011	26
2012	26
2013	15
2014	22
2015	17
2016	17
2017	20
2018	9
2020	8
2021	28
2022	32
2023	23
2024	26
2025	24

Wettest Day of Each Month

Aug: 18.0 mm (0.7 in)

The wettest day on record for each calendar month at Hornafjordur. The most was 18.0 mm (0.7 in) on 16 August 1994.

Record daily precipitation for each month at Hornafjordur
Month	Record daily precipitation (mm)	Date
Jun	0.8 mm (0.03 in)	11 June 2002
Jul	2.8 mm (0.11 in)	29 July 2002
Aug	18.0 mm (0.7 in)	16 August 1994
Oct	0.3 mm (0.01 in)	14 October 1985

Period of Record Coverage

1973 to 2025

52 years of record at Hornafjordur, 1973 to 2025. 29 years have data for under 90 percent of days and are left out of rankings: 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980 and others.

Days with data per year at Hornafjordur
Year	Days with data	Share of year	Complete
1973	14	4%	No
1974	14	4%	No
1975	84	23%	No
1976	15	4%	No
1977	3	1%	No
1978	4	1%	No
1979	2	1%	No
1980	18	5%	No
1981	51	14%	No
1982	85	23%	No
1983	120	33%	No
1984	96	26%	No
1985	233	64%	No
1986	333	91%	Yes
1987	344	94%	Yes
1988	322	88%	No
1989	338	93%	Yes
1990	336	92%	Yes
1991	336	92%	Yes
1992	335	92%	Yes
1993	345	95%	Yes
1994	344	94%	Yes
1995	336	92%	Yes
1996	344	94%	Yes
1997	346	95%	Yes
1998	329	90%	Yes
1999	333	91%	Yes
2000	335	92%	Yes
2001	347	95%	Yes
2002	346	95%	Yes
2003	343	94%	Yes
2004	338	92%	Yes
2005	335	92%	Yes
2006	350	96%	Yes
2007	336	92%	Yes
2008	343	94%	Yes
2009	315	86%	No
2010	348	95%	Yes
2011	274	75%	No
2012	294	80%	No
2013	282	77%	No
2014	248	68%	No
2015	262	72%	No
2016	246	67%	No
2017	248	68%	No
2018	194	53%	No
2020	137	37%	No
2021	258	71%	No
2022	250	68%	No
2023	239	65%	No
2024	250	68%	No
2025	143	39%	No

Latest Records

Latest records at Hornafjordur
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 August 2025	Hornafjordur, IS	daily high max	16.1 C (61.0 F)	0.4 C (0.7 F)	15 years	11 of 100 (Routine)
23 July 2025	Hornafjordur, IS	daily high max (Tie)	16.6 C (61.9 F)	tie	38 years	4 of 100 (Routine)
20 July 2025	Hornafjordur, IS	daily high min	11.5 C (52.7 F)	0.2 C (0.4 F)	18 years	11 of 100 (Routine)
16 July 2025	Hornafjordur, IS	daily high min	10.7 C (51.3 F)	0.3 C (0.5 F)	34 years	16 of 100 (Routine)
14 July 2025	Hornafjordur, IS	daily high min	11.1 C (52.0 F)	0.1 C (0.2 F)	38 years	16 of 100 (Routine)
13 July 2025	Hornafjordur, IS	daily high min	13.1 C (55.6 F)	2.1 C (3.8 F)	39 years	28 of 100 (Routine)
9 July 2025	Hornafjordur, IS	daily high min	10.6 C (51.1 F)	0.4 C (0.7 F)	0 years	7 of 100 (Routine)
11 June 2025	Hornafjordur, IS	daily low min	2.0 C (35.6 F)	0.7 C (1.3 F)	34 years	18 of 100 (Routine)
10 June 2025	Hornafjordur, IS	daily low max	8.1 C (46.6 F)	0.6 C (1.1 F)	40 years	19 of 100 (Routine)
15 May 2025	Hornafjordur, IS	daily high min	7.9 C (46.2 F)	0.5 C (0.9 F)	24 years	13 of 100 (Routine)
7 May 2025	Hornafjordur, IS	daily high min	8.2 C (46.8 F)	0.4 C (0.7 F)	16 years	11 of 100 (Routine)
25 April 2025	Hornafjordur, IS	daily high min	7.3 C (45.1 F)	0.3 C (0.5 F)	20 years	11 of 100 (Routine)
20 March 2025	Hornafjordur, IS	daily high min	3.5 C (38.3 F)	0.1 C (0.2 F)	16 years	9 of 100 (Routine)
15 March 2025	Hornafjordur, IS	daily high max	10.3 C (50.5 F)	2.3 C (4.1 F)	8 years	14 of 100 (Routine)
12 March 2025	Hornafjordur, IS	daily high max	11.5 C (52.7 F)	0.9 C (1.6 F)	11 years	10 of 100 (Routine)
11 March 2025	Hornafjordur, IS	daily high max	8.4 C (47.1 F)	0.3 C (0.5 F)	15 years	9 of 100 (Routine)
20 February 2025	Hornafjordur, IS	daily high min	5.9 C (42.6 F)	0.5 C (0.9 F)	14 years	10 of 100 (Routine)
3 February 2025	Hornafjordur, IS	daily high min	3.2 C (37.8 F)	0.1 C (0.2 F)	24 years	12 of 100 (Routine)
30 January 2025	Hornafjordur, IS	daily low min	-10.6 C (12.9 F)	1.1 C (2.0 F)	22 years	13 of 100 (Routine)
29 January 2025	Hornafjordur, IS	daily low min	-9.5 C (14.9 F)	0.3 C (0.5 F)	21 years	11 of 100 (Routine)

Extremes by Year

1973 to 2025

Yearly extremes at Hornafjordur: 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)	1999	18.0 C (64.4 F)	52
Coldest night (TNn)	-15.3 C (4.5 F)	1993	-9.8 C (14.4 F)	50
Wettest day (Rx1day)	18.0 mm (0.7 in)	1994	1.5 mm (0.06 in)	4
Longest dry spell (CDD)	2 days	2002	1 day	4

Hottest day (TXx)

The hottest day of the year at Hornafjordur, 1973 to 2025. The record is 23.8 C (74.8 F) in 1999, marked on the chart; the median year is 18.0 C (64.4 F).

Hottest day (TXx) at Hornafjordur by year
Year	Hottest day (TXx)
1973	11.0 C (51.8 F)
1974	11.0 C (51.8 F)
1975	15.0 C (59.0 F)
1976	16.0 C (60.8 F)
1977	11.0 C (51.8 F)
1978	12.0 C (53.6 F)
1979	11.0 C (51.8 F)
1980	13.0 C (55.4 F)
1981	15.0 C (59.0 F)
1982	15.3 C (59.5 F)
1983	16.0 C (60.8 F)
1984	17.6 C (63.7 F)
1985	17.1 C (62.8 F)
1986	16.9 C (62.4 F)
1987	21.4 C (70.5 F)
1988	23.7 C (74.7 F)
1989	22.0 C (71.6 F)
1990	18.0 C (64.4 F)
1991	22.7 C (72.9 F)
1992	17.7 C (63.9 F)
1993	18.0 C (64.4 F)
1994	19.4 C (66.9 F)
1995	21.2 C (70.2 F)
1996	18.6 C (65.5 F)
1997	18.7 C (65.7 F)
1998	20.7 C (69.3 F)
1999	23.8 C (74.8 F)
2000	19.2 C (66.6 F)
2001	16.8 C (62.2 F)
2002	20.3 C (68.5 F)
2003	22.1 C (71.8 F)
2004	22.9 C (73.2 F)
2005	22.0 C (71.6 F)
2006	19.6 C (67.3 F)
2007	18.4 C (65.1 F)
2008	22.8 C (73.0 F)
2009	19.1 C (66.4 F)
2010	17.1 C (62.8 F)
2011	16.6 C (61.9 F)
2012	18.5 C (65.3 F)
2013	16.6 C (61.9 F)
2014	18.0 C (64.4 F)
2015	17.2 C (63.0 F)
2016	17.4 C (63.3 F)
2017	18.6 C (65.5 F)
2018	20.2 C (68.4 F)
2020	16.3 C (61.3 F)
2021	20.3 C (68.5 F)
2022	15.4 C (59.7 F)
2023	18.7 C (65.7 F)
2024	14.5 C (58.1 F)
2025	18.0 C (64.4 F)

Coldest night (TNn)

The coldest night of the year at Hornafjordur, 1973 to 2025. The record is -15.3 C (4.5 F) in 1993, marked on the chart; the median year is -9.8 C (14.4 F).

Coldest night (TNn) at Hornafjordur by year
Year	Coldest night (TNn)
1973	n/a
1974	-6.0 C (21.2 F)
1975	-2.0 C (28.4 F)
1976	n/a
1977	9.0 C (48.2 F)
1978	-8.0 C (17.6 F)
1979	6.0 C (42.8 F)
1980	-2.0 C (28.4 F)
1981	-3.0 C (26.6 F)
1982	-10.6 C (12.9 F)
1983	-6.3 C (20.7 F)
1984	-8.7 C (16.3 F)
1985	-11.1 C (12.0 F)
1986	-10.2 C (13.6 F)
1987	-10.0 C (14.0 F)
1988	-14.4 C (6.1 F)
1989	-11.8 C (10.8 F)
1990	-11.5 C (11.3 F)
1991	-8.3 C (17.1 F)
1992	-15.2 C (4.6 F)
1993	-15.3 C (4.5 F)
1994	-12.0 C (10.4 F)
1995	-11.4 C (11.5 F)
1996	-12.1 C (10.2 F)
1997	-9.0 C (15.8 F)
1998	-14.0 C (6.8 F)
1999	-10.2 C (13.6 F)
2000	-13.0 C (8.6 F)
2001	-11.6 C (11.1 F)
2002	-11.6 C (11.1 F)
2003	-9.5 C (14.9 F)
2004	-13.0 C (8.6 F)
2005	-8.6 C (16.5 F)
2006	-9.0 C (15.8 F)
2007	-9.6 C (14.7 F)
2008	-10.6 C (12.9 F)
2009	-7.9 C (17.8 F)
2010	-11.0 C (12.2 F)
2011	-10.0 C (14.0 F)
2012	-7.0 C (19.4 F)
2013	-8.4 C (16.9 F)
2014	-8.4 C (16.9 F)
2015	-7.4 C (18.7 F)
2016	-7.0 C (19.4 F)
2017	-7.8 C (18.0 F)
2018	-7.0 C (19.4 F)
2020	-7.0 C (19.4 F)
2021	-8.2 C (17.2 F)
2022	-11.6 C (11.1 F)
2023	-11.8 C (10.8 F)
2024	-12.0 C (10.4 F)
2025	-11.0 C (12.2 F)

Wettest day (Rx1day)

The wettest day of the year at Hornafjordur, 1973 to 2025. The record is 18.0 mm (0.7 in) in 1994, marked on the chart; the median year is 1.5 mm (0.06 in).

Wettest day (Rx1day) at Hornafjordur by year
Year	Wettest day (Rx1day)
1973	n/a
1974	n/a
1975	0.0 mm (0.00 in)
1976	n/a
1977	n/a
1978	n/a
1979	n/a
1980	n/a
1981	n/a
1982	n/a
1983	n/a
1984	n/a
1985	0.3 mm (0.01 in)
1986	n/a
1987	n/a
1988	n/a
1989	n/a
1990	n/a
1991	n/a
1992	n/a
1993	n/a
1994	18.0 mm (0.7 in)
1995	n/a
1996	n/a
1997	n/a
1998	n/a
1999	n/a
2000	n/a
2001	n/a
2002	2.8 mm (0.11 in)
2003	n/a
2004	n/a
2005	n/a
2006	n/a
2007	n/a
2008	n/a
2009	n/a
2010	n/a
2011	n/a
2012	n/a
2013	n/a
2014	n/a
2015	n/a
2016	n/a
2017	n/a
2018	n/a
2020	n/a
2021	n/a
2022	n/a
2023	n/a
2024	n/a
2025	n/a

Longest dry spell (CDD)

The longest dry spell of the year at Hornafjordur, 1973 to 2025. The record is 2 days in 2002, marked on the chart; the median year is 1 day.

Longest dry spell (CDD) at Hornafjordur by year
Year	Longest dry spell (CDD)
1973	n/a
1974	n/a
1975	1 day
1976	n/a
1977	n/a
1978	n/a
1979	n/a
1980	n/a
1981	n/a
1982	n/a
1983	n/a
1984	n/a
1985	1 day
1986	n/a
1987	n/a
1988	n/a
1989	n/a
1990	n/a
1991	n/a
1992	n/a
1993	n/a
1994	1 day
1995	n/a
1996	n/a
1997	n/a
1998	n/a
1999	n/a
2000	n/a
2001	n/a
2002	2 days
2003	n/a
2004	n/a
2005	n/a
2006	n/a
2007	n/a
2008	n/a
2009	n/a
2010	n/a
2011	n/a
2012	n/a
2013	n/a
2014	n/a
2015	n/a
2016	n/a
2017	n/a
2018	n/a
2020	n/a
2021	n/a
2022	n/a
2023	n/a
2024	n/a
2025	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 Hornafjordur standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Hornafjordur 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 2026-10-17 (17 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).