Atar Weather Records (MR000061421)

Record envelope, standing records and threshold days for Atar (MR000061421), Mauritania, with 80 years of record.

Key Facts for Atar

Atar (MR000061421) is a weather station in Mauritania at 20.52 latitude and -13.07 longitude, 224 m (735 ft) above sea level.
The station reports from 1944 to 2023, 80 years of record.
1,464 records set at Atar still stand.
Records are tracked for tmax: an element needs 30 years of data to be eligible.
Atar set a daily record low maximum temperature of 22.3 C (72.1 F) on 24 December 2017.

About the Station

Location: Mauritania, 20.52 latitude, -13.07 longitude.
Elevation: 224 m (735 ft).
Period of record: 1944 to 2023, 80 years.
Eligible elements: tmax.

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 Atar. 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 Atar, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	38.0 C (100.4 F)	5.4 C (41.7 F)	n/a	n/a
Feb	41.1 C (106.0 F)	8.0 C (46.4 F)	n/a	n/a
Mar	43.0 C (109.4 F)	10.0 C (50.0 F)	n/a	n/a
Apr	45.0 C (113.0 F)	11.8 C (53.2 F)	n/a	n/a
May	47.0 C (116.6 F)	13.6 C (56.5 F)	n/a	n/a
Jun	48.0 C (118.4 F)	20.3 C (68.5 F)	n/a	n/a
Jul	48.4 C (119.1 F)	20.0 C (68.0 F)	n/a	n/a
Aug	48.9 C (120.0 F)	19.9 C (67.8 F)	n/a	n/a
Sep	47.7 C (117.9 F)	18.0 C (64.4 F)	n/a	n/a
Oct	43.8 C (110.8 F)	14.7 C (58.5 F)	n/a	n/a
Nov	44.0 C (111.2 F)	10.2 C (50.4 F)	n/a	n/a
Dec	37.4 C (99.3 F)	6.0 C (42.8 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Atar still stand. 1984 holds the most, with 53.

Standing records at Atar by the year they were set
Year set	Standing records
1957	35
1958	51
1960	1
1962	1
1964	6
1965	25
1966	14
1967	4
1973	27
1974	41
1975	39
1976	38
1977	24
1978	36
1979	36
1980	26
1981	41
1982	43
1983	50
1984	53
1985	43
1986	31
1987	38
1988	42
1989	37
1990	29
1991	34
1992	48
1993	38
1994	29
1995	36
1996	27
1997	25
1998	17
1999	16
2000	28
2001	16
2003	12
2004	22
2005	29
2006	13
2007	11
2008	25
2009	34
2010	44
2011	43
2012	30
2013	30
2014	13
2015	17
2016	3
2017	12
2023	1

Wettest Day of Each Month

Jun: 143.0 mm (5.6 in)

The wettest day on record for each calendar month at Atar. The most was 143.0 mm (5.6 in) on 29 June 1988.

Record daily precipitation for each month at Atar
Month	Record daily precipitation (mm)	Date
Jan	108.0 mm (4.3 in)	31 January 1996
Feb	19.1 mm (0.8 in)	29 February 1980
Mar	20.1 mm (0.8 in)	30 March 1990
Apr	5.1 mm (0.20 in)	26 April 1990
May	20.1 mm (0.8 in)	24 May 2006
Jun	143.0 mm (5.6 in)	29 June 1988
Jul	24.9 mm (1.0 in)	20 July 1985
Aug	99.1 mm (3.9 in)	6 August 1988
Sep	99.1 mm (3.9 in)	28 September 1993
Oct	32.0 mm (1.3 in)	12 October 2012
Nov	7.9 mm (0.31 in)	9 November 2004
Dec	135.9 mm (5.4 in)	8 December 1998

Period of Record Coverage

1944 to 2018

55 years of record at Atar, 1944 to 2018. 54 years have data for under 90 percent of days and are left out of rankings: 1944, 1957, 1960, 1961, 1962, 1964, 1965, 1966 and others.

Days with data per year at Atar
Year	Days with data	Share of year	Complete
1944	1	0%	No
1957	179	49%	No
1958	361	99%	Yes
1960	1	0%	No
1961	4	1%	No
1962	1	0%	No
1964	38	10%	No
1965	185	51%	No
1966	142	39%	No
1967	93	25%	No
1973	170	47%	No
1974	237	65%	No
1975	225	62%	No
1976	197	54%	No
1977	218	60%	No
1978	271	74%	No
1979	179	49%	No
1980	284	78%	No
1981	257	70%	No
1982	257	70%	No
1983	320	88%	No
1984	319	87%	No
1985	306	84%	No
1986	277	76%	No
1987	296	81%	No
1988	318	87%	No
1989	283	78%	No
1990	296	81%	No
1991	244	67%	No
1992	284	78%	No
1993	268	73%	No
1994	282	77%	No
1995	258	71%	No
1996	144	39%	No
1997	167	46%	No
1998	178	49%	No
1999	137	38%	No
2000	164	45%	No
2001	111	30%	No
2003	64	18%	No
2004	187	51%	No
2005	182	50%	No
2006	133	36%	No
2007	137	38%	No
2008	171	47%	No
2009	281	77%	No
2010	247	68%	No
2011	252	69%	No
2012	182	50%	No
2013	240	66%	No
2014	210	58%	No
2015	189	52%	No
2016	129	35%	No
2017	117	32%	No
2018	2	1%	No

Latest Records

Latest records at Atar
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
24 December 2017	Atar, MR	daily low max	22.3 C (72.1 F)	0.7 C (1.3 F)	28 years	17 of 100 (Routine)
22 December 2017	Atar, MR	daily low max	20.7 C (69.3 F)	0.3 C (0.5 F)	43 years	19 of 100 (Routine)
13 December 2017	Atar, MR	daily low max	22.2 C (72.0 F)	0.4 C (0.7 F)	31 years	17 of 100 (Routine)
8 November 2017	Atar, MR	daily high max	39.6 C (103.3 F)	1.6 C (2.9 F)	43 years	23 of 100 (Routine)
21 June 2017	Atar, MR	daily high max	46.8 C (116.2 F)	1.6 C (2.9 F)	34 years	23 of 100 (Routine)
20 June 2017	Atar, MR	daily high max	46.7 C (116.1 F)	0.6 C (1.1 F)	51 years	24 of 100 (Routine)
22 May 2017	Atar, MR	daily high max	45.1 C (113.2 F)	0.1 C (0.2 F)	59 years	24 of 100 (Routine)
19 May 2017	Atar, MR	daily high max	45.6 C (114.1 F)	1.0 C (1.8 F)	31 years	18 of 100 (Routine)
16 May 2017	Atar, MR	daily high max	44.6 C (112.3 F)	0.2 C (0.4 F)	22 years	13 of 100 (Routine)
9 May 2017	Atar, MR	daily high max	46.1 C (115.0 F)	0.4 C (0.7 F)	34 years	18 of 100 (Routine)
13 March 2017	Atar, MR	daily high max	37.4 C (99.3 F)	0.4 C (0.7 F)	36 years	19 of 100 (Routine)
3 March 2017	Atar, MR	daily high max	39.2 C (102.6 F)	0.2 C (0.4 F)	32 years	16 of 100 (Routine)
24 March 2016	Atar, MR	daily low max	25.2 C (77.4 F)	1.8 C (3.2 F)	1 year	11 of 100 (Routine)
14 January 2016	Atar, MR	daily high max	34.7 C (94.5 F)	1.7 C (3.1 F)	5 years	13 of 100 (Routine)
13 January 2016	Atar, MR	daily high max	35.2 C (95.4 F)	2.2 C (4.0 F)	36 years	24 of 100 (Routine)

Extremes by Year

1944 to 2023

Yearly extremes at Atar: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	48.9 C (120.0 F)	1965	46.8 C (116.2 F)	55
Coldest night (TNn)	5.4 C (41.7 F)	1989	9.0 C (48.2 F)	53
Wettest day (Rx1day)	143.0 mm (5.6 in)	1988	15.0 mm (0.6 in)	42
Wettest five days (Rx5day)	119.9 mm (4.7 in)	1981	13.5 mm (0.5 in)	10
Longest dry spell (CDD)	47 days	1980	2 days	41

Hottest day (TXx)

The hottest day of the year at Atar, 1944 to 2023. The record is 48.9 C (120.0 F) in 1965, marked on the chart; the median year is 46.8 C (116.2 F).

Hottest day (TXx) at Atar by year
Year	Hottest day (TXx)
1944	29.6 C (85.3 F)
1957	47.8 C (118.0 F)
1958	45.0 C (113.0 F)
1960	25.0 C (77.0 F)
1961	37.8 C (100.0 F)
1962	37.8 C (100.0 F)
1964	42.2 C (108.0 F)
1965	48.9 C (120.0 F)
1966	47.2 C (117.0 F)
1967	46.1 C (115.0 F)
1973	46.0 C (114.8 F)
1974	46.0 C (114.8 F)
1975	47.0 C (116.6 F)
1976	47.0 C (116.6 F)
1977	46.0 C (114.8 F)
1978	46.0 C (114.8 F)
1979	47.0 C (116.6 F)
1980	46.0 C (114.8 F)
1981	48.0 C (118.4 F)
1982	47.0 C (116.6 F)
1983	47.7 C (117.9 F)
1984	46.2 C (115.2 F)
1985	46.3 C (115.3 F)
1986	46.8 C (116.2 F)
1987	47.8 C (118.0 F)
1988	47.2 C (117.0 F)
1989	46.9 C (116.4 F)
1990	46.5 C (115.7 F)
1991	47.7 C (117.9 F)
1992	46.0 C (114.8 F)
1993	46.5 C (115.7 F)
1994	46.5 C (115.7 F)
1995	47.3 C (117.1 F)
1996	47.3 C (117.1 F)
1997	46.7 C (116.1 F)
1998	47.5 C (117.5 F)
1999	47.0 C (116.6 F)
2000	47.6 C (117.7 F)
2001	47.7 C (117.9 F)
2003	44.2 C (111.6 F)
2004	47.0 C (116.6 F)
2005	47.3 C (117.1 F)
2006	46.6 C (115.9 F)
2007	46.1 C (115.0 F)
2008	46.0 C (114.8 F)
2009	47.4 C (117.3 F)
2010	47.4 C (117.3 F)
2011	48.4 C (119.1 F)
2012	46.7 C (116.1 F)
2013	47.0 C (116.6 F)
2014	45.0 C (113.0 F)
2015	47.0 C (116.6 F)
2016	45.1 C (113.2 F)
2017	46.8 C (116.2 F)
2018	29.6 C (85.3 F)
2023	n/a

Coldest night (TNn)

The coldest night of the year at Atar, 1944 to 2023. The record is 5.4 C (41.7 F) in 1989, marked on the chart; the median year is 9.0 C (48.2 F).

Coldest night (TNn) at Atar by year
Year	Coldest night (TNn)
1944	16.9 C (62.4 F)
1957	8.9 C (48.0 F)
1958	7.8 C (46.0 F)
1960	10.0 C (50.0 F)
1961	11.1 C (52.0 F)
1962	22.8 C (73.0 F)
1964	8.9 C (48.0 F)
1965	7.2 C (45.0 F)
1966	7.8 C (46.0 F)
1967	8.9 C (48.0 F)
1973	6.0 C (42.8 F)
1974	7.0 C (44.6 F)
1975	12.0 C (53.6 F)
1976	8.0 C (46.4 F)
1977	9.0 C (48.2 F)
1978	6.0 C (42.8 F)
1979	8.0 C (46.4 F)
1980	9.0 C (48.2 F)
1981	8.0 C (46.4 F)
1982	7.9 C (46.2 F)
1983	9.0 C (48.2 F)
1984	6.0 C (42.8 F)
1985	9.0 C (48.2 F)
1986	9.8 C (49.6 F)
1987	8.7 C (47.7 F)
1988	8.6 C (47.5 F)
1989	5.4 C (41.7 F)
1990	9.0 C (48.2 F)
1991	7.0 C (44.6 F)
1992	10.0 C (50.0 F)
1993	8.0 C (46.4 F)
1994	7.5 C (45.5 F)
1995	7.3 C (45.1 F)
1996	8.9 C (48.0 F)
1997	8.8 C (47.8 F)
1998	9.2 C (48.6 F)
1999	8.0 C (46.4 F)
2000	8.8 C (47.8 F)
2001	11.5 C (52.7 F)
2003	12.9 C (55.2 F)
2004	10.4 C (50.7 F)
2005	10.5 C (50.9 F)
2006	10.3 C (50.5 F)
2007	11.5 C (52.7 F)
2008	11.0 C (51.8 F)
2009	9.0 C (48.2 F)
2010	11.5 C (52.7 F)
2011	9.4 C (48.9 F)
2012	8.0 C (46.4 F)
2013	10.5 C (50.9 F)
2014	11.0 C (51.8 F)
2015	15.0 C (59.0 F)
2016	n/a
2017	n/a
2018	n/a
2023	23.9 C (75.0 F)

Wettest day (Rx1day)

The wettest day of the year at Atar, 1944 to 2023. The record is 143.0 mm (5.6 in) in 1988, marked on the chart; the median year is 15.0 mm (0.6 in).

Wettest day (Rx1day) at Atar by year
Year	Wettest day (Rx1day)
1944	n/a
1957	n/a
1958	n/a
1960	n/a
1961	n/a
1962	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1973	10.9 mm (0.4 in)
1974	6.1 mm (0.24 in)
1975	1.0 mm (0.04 in)
1976	40.9 mm (1.6 in)
1977	8.9 mm (0.35 in)
1978	17.0 mm (0.7 in)
1979	8.9 mm (0.35 in)
1980	19.1 mm (0.8 in)
1981	119.9 mm (4.7 in)
1982	16.0 mm (0.6 in)
1983	1.0 mm (0.04 in)
1984	46.0 mm (1.8 in)
1985	24.9 mm (1.0 in)
1986	54.1 mm (2.1 in)
1987	15.0 mm (0.6 in)
1988	143.0 mm (5.6 in)
1989	15.0 mm (0.6 in)
1990	20.1 mm (0.8 in)
1991	15.0 mm (0.6 in)
1992	9.9 mm (0.39 in)
1993	99.1 mm (3.9 in)
1994	20.1 mm (0.8 in)
1995	27.9 mm (1.1 in)
1996	108.0 mm (4.3 in)
1997	11.9 mm (0.5 in)
1998	135.9 mm (5.4 in)
1999	7.9 mm (0.31 in)
2000	7.9 mm (0.31 in)
2001	0.8 mm (0.03 in)
2003	21.1 mm (0.8 in)
2004	13.0 mm (0.5 in)
2005	22.1 mm (0.9 in)
2006	20.1 mm (0.8 in)
2007	3.0 mm (0.12 in)
2008	13.0 mm (0.5 in)
2009	3.0 mm (0.12 in)
2010	11.9 mm (0.5 in)
2011	15.0 mm (0.6 in)
2012	32.0 mm (1.3 in)
2013	24.9 mm (1.0 in)
2014	0.0 mm (0.00 in)
2015	6.1 mm (0.24 in)
2016	n/a
2017	n/a
2018	n/a
2023	n/a

Wettest five days (Rx5day)

The wettest five days of the year at Atar, 1944 to 2023. The record is 119.9 mm (4.7 in) in 1981, marked on the chart; the median year is 13.5 mm (0.5 in).

Wettest five days (Rx5day) at Atar by year
Year	Wettest five days (Rx5day)
1944	n/a
1957	n/a
1958	n/a
1960	n/a
1961	n/a
1962	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1973	10.9 mm (0.4 in)
1974	3.0 mm (0.12 in)
1975	n/a
1976	40.9 mm (1.6 in)
1977	8.9 mm (0.35 in)
1978	9.9 mm (0.39 in)
1979	8.9 mm (0.35 in)
1980	34.9 mm (1.4 in)
1981	119.9 mm (4.7 in)
1982	n/a
1983	n/a
1984	n/a
1985	n/a
1986	n/a
1987	n/a
1988	25.2 mm (1.0 in)
1989	16.0 mm (0.6 in)
1990	n/a
1991	n/a
1992	n/a
1993	n/a
1994	n/a
1995	n/a
1996	n/a
1997	n/a
1998	n/a
1999	n/a
2000	n/a
2001	n/a
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
2023	n/a

Longest dry spell (CDD)

The longest dry spell of the year at Atar, 1944 to 2023. The record is 47 days in 1980, marked on the chart; the median year is 2 days.

Longest dry spell (CDD) at Atar by year
Year	Longest dry spell (CDD)
1944	n/a
1957	n/a
1958	n/a
1960	n/a
1961	n/a
1962	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1973	7 days
1974	16 days
1975	2 days
1976	6 days
1977	21 days
1978	23 days
1979	13 days
1980	47 days
1981	18 days
1982	1 day
1983	3 days
1984	1 day
1985	2 days
1986	2 days
1987	2 days
1988	2 days
1989	2 days
1990	2 days
1991	2 days
1992	2 days
1993	3 days
1994	2 days
1995	2 days
1996	1 day
1997	2 days
1998	2 days
1999	2 days
2000	2 days
2001	2 days
2003	1 day
2004	2 days
2005	2 days
2006	1 day
2007	1 day
2008	2 days
2009	1 day
2010	1 day
2011	1 day
2012	n/a
2013	1 day
2014	1 day
2015	1 day
2016	n/a
2017	n/a
2018	n/a
2023	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 Atar standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Atar 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 2026-10-13 (13 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).