Bayanbulag Weather Records (MGM00044275)

Record envelope, standing records and threshold days for Bayanbulag (MGM00044275), Mongolia, with 44 years of record.

Key Facts for Bayanbulag

Bayanbulag (MGM00044275) is a weather station in Mongolia at 46.83 latitude and 98.08 longitude, 2,255 m (7,398 ft) above sea level.
The station reports from 1983 to 2026, 44 years of record.
1,464 records set at Bayanbulag still stand.
Records are tracked for tmax, tmin: an element needs 30 years of data to be eligible.
Bayanbulag set a daily record high minimum temperature of -2.4 C (27.7 F) on 10 October 2026 (provisional).

Provisional Records

Records set in the last 60 days are provisional until they clear the revision window.

About the Station

Location: Mongolia, 46.83 latitude, 98.08 longitude.
Elevation: 2,255 m (7,398 ft).
Period of record: 1983 to 2026, 44 years.
Eligible elements: tmax, tmin.

Daily Record Envelope and 2026

15 days at or beyond a record

The band shows the record high and record low for each calendar day at Bayanbulag. The lines show the 2026 daily maximum and minimum. 15 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Bayanbulag, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	4.0 C (39.2 F)	-44.1 C (-47.4 F)	-4.0 C (24.8 F)	-37.5 C (-35.5 F)
Feb	5.3 C (41.5 F)	-43.2 C (-45.8 F)	5.1 C (41.2 F)	-32.8 C (-27.0 F)
Mar	13.7 C (56.7 F)	-37.8 C (-36.0 F)	5.4 C (41.7 F)	-29.2 C (-20.6 F)
Apr	25.3 C (77.5 F)	-35.4 C (-31.7 F)	15.8 C (60.4 F)	-13.7 C (7.3 F)
May	27.9 C (82.2 F)	-18.4 C (-1.1 F)	21.0 C (69.8 F)	-4.4 C (24.1 F)
Jun	29.3 C (84.7 F)	-7.5 C (18.5 F)	24.7 C (76.5 F)	-0.7 C (30.7 F)
Jul	30.9 C (87.6 F)	-2.3 C (27.9 F)	29.5 C (85.1 F)	4.8 C (40.6 F)
Aug	28.6 C (83.5 F)	-6.6 C (20.1 F)	26.7 C (80.1 F)	0.8 C (33.4 F)
Sep	24.6 C (76.3 F)	-17.0 C (1.4 F)	25.9 C (78.6 F)	-10.8 C (12.6 F)
Oct	17.1 C (62.8 F)	-29.9 C (-21.8 F)	15.1 C (59.2 F)	-13.6 C (7.5 F)
Nov	10.6 C (51.1 F)	-40.5 C (-40.9 F)	n/a	n/a
Dec	7.8 C (46.0 F)	-43.0 C (-45.4 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Bayanbulag still stand. 2025 holds the most, with 82.

Standing records at Bayanbulag by the year they were set
Year set	Standing records
1983	3
1984	50
1985	28
1986	25
1987	40
1988	33
1989	37
1990	30
1991	28
1992	17
1993	36
1994	33
1995	40
1996	44
1997	33
1998	37
1999	50
2000	34
2001	24
2002	39
2003	28
2004	31
2005	38
2006	29
2007	22
2008	15
2009	23
2010	53
2011	51
2012	23
2013	17
2015	27
2016	41
2017	25
2018	25
2019	28
2020	37
2021	27
2022	46
2023	42
2024	27
2025	82
2026	66

All-Time Record Progression

2 new records

2 all-time records were set at Bayanbulag between 5 July 2026 and 23 July 2026. Each dot is a new record.

When Bayanbulag set new all-time records
Date	Kind	Detail
2026-07-05	Record high minimum temperature	Record high minimum temperature 18.7 C (65.7 F)
2026-07-23	Record high minimum temperature	Record high minimum temperature 19.3 C (66.7 F)

Wettest Day of Each Month

Feb: 90.7 mm (3.6 in)

The wettest day on record for each calendar month at Bayanbulag. The most was 90.7 mm (3.6 in) on 21 February 1984.

Record daily precipitation for each month at Bayanbulag
Month	Record daily precipitation (mm)	Date
Jan	5.1 mm (0.20 in)	17 January 2024
Feb	90.7 mm (3.6 in)	21 February 1984
Mar	8.1 mm (0.32 in)	16 March 2003
Apr	26.9 mm (1.1 in)	24 April 2021
May	17.0 mm (0.7 in)	26 May 2010
Jun	32.0 mm (1.3 in)	14 June 2019
Jul	34.8 mm (1.4 in)	4 July 2000
Aug	71.9 mm (2.8 in)	1 August 2018
Sep	22.1 mm (0.9 in)	7 September 1989
Oct	9.9 mm (0.39 in)	19 October 2024
Nov	23.1 mm (0.9 in)	22 November 2017
Dec	3.0 mm (0.12 in)	12 December 2015

Period of Record Coverage

1983 to 2026

43 years of record at Bayanbulag, 1983 to 2026. 25 years have data for under 90 percent of days and are left out of rankings: 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990 and others.

Days with data per year at Bayanbulag
Year	Days with data	Share of year	Complete
1983	61	17%	No
1984	286	78%	No
1985	281	77%	No
1986	312	85%	No
1987	322	88%	No
1988	327	89%	No
1989	321	88%	No
1990	312	85%	No
1991	311	85%	No
1992	210	57%	No
1993	267	73%	No
1994	302	83%	No
1995	318	87%	No
1996	278	76%	No
1997	305	84%	No
1998	296	81%	No
1999	310	85%	No
2000	317	87%	No
2001	327	90%	No
2002	329	90%	Yes
2003	319	87%	No
2004	311	85%	No
2005	333	91%	Yes
2006	326	89%	No
2007	331	91%	Yes
2008	317	87%	No
2009	331	91%	Yes
2010	331	91%	Yes
2011	338	93%	Yes
2012	328	90%	No
2013	344	94%	Yes
2015	338	93%	Yes
2016	352	96%	Yes
2017	350	96%	Yes
2018	352	96%	Yes
2019	357	98%	Yes
2020	351	96%	Yes
2021	341	93%	Yes
2022	357	98%	Yes
2023	342	94%	Yes
2024	337	92%	Yes
2025	349	96%	Yes
2026	271	74%	No

Latest Records

Latest records at Bayanbulag
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
10 October 2026	Bayanbulag, MN	daily high min (Provisional)	-2.4 C (27.7 F)	1.6 C (2.9 F)	3 years	7 of 100 (Routine)
9 October 2026	Bayanbulag, MN	daily high min (Provisional)	-4.8 C (23.4 F)	0.2 C (0.4 F)	3 years	4 of 100 (Routine)
6 October 2026	Bayanbulag, MN	daily high min (Provisional)	1.5 C (34.7 F)	7.5 C (13.5 F)	40 years	30 of 100 (Routine)
5 October 2026	Bayanbulag, MN	daily high min (Provisional)	-2.3 C (27.9 F)	1.9 C (3.4 F)	11 years	10 of 100 (Routine)
28 September 2026	Bayanbulag, MN	daily low max (Provisional)	1.0 C (33.8 F)	1.8 C (3.2 F)	15 years	11 of 100 (Routine)
27 September 2026	Bayanbulag, MN	daily high min (Provisional)	0.4 C (32.7 F)	0.6 C (1.1 F)	1 year	5 of 100 (Routine)
17 September 2026	Bayanbulag, MN	daily high min (Provisional)	1.9 C (35.4 F)	2.6 C (4.7 F)	4 years	11 of 100 (Routine)
16 September 2026	Bayanbulag, MN	daily high min (Provisional)	2.5 C (36.5 F)	3.1 C (5.6 F)	20 years	17 of 100 (Routine)
16 September 2026	Bayanbulag, MN	daily high max (Provisional)	19.2 C (66.6 F)	0.5 C (0.9 F)	25 years	12 of 100 (Routine)
15 September 2026	Bayanbulag, MN	daily high min (Provisional)	4.2 C (39.6 F)	4.1 C (7.4 F)	19 years	18 of 100 (Routine)
15 September 2026	Bayanbulag, MN	daily high max (Provisional)	20.6 C (69.1 F)	0.1 C (0.2 F)	20 years	10 of 100 (Routine)
10 September 2026	Bayanbulag, MN	daily high min (Provisional)	1.7 C (35.1 F)	1.3 C (2.3 F)	0 years	7 of 100 (Routine)
2 September 2026	Bayanbulag, MN	monthly high min (Provisional)	11.1 C (52.0 F)	2.6 C (4.7 F)	2 years	20 of 100 (Routine)
1 September 2026	Bayanbulag, MN	monthly high max (Provisional)	25.9 C (78.6 F)	1.3 C (2.3 F)	2 years	16 of 100 (Routine)
1 September 2026	Bayanbulag, MN	daily high min (Provisional)	7.4 C (45.3 F)	0.4 C (0.7 F)	40 years	16 of 100 (Routine)
31 August 2026	Bayanbulag, MN	daily high max (Provisional)	23.7 C (74.7 F)	0.4 C (0.7 F)	7 years	7 of 100 (Routine)
25 August 2026	Bayanbulag, MN	daily high min (Provisional)	12.0 C (53.6 F)	1.5 C (2.7 F)	1 year	8 of 100 (Routine)
21 August 2026	Bayanbulag, MN	daily high min (Provisional)	11.0 C (51.8 F)	2.0 C (3.6 F)	21 years	15 of 100 (Routine)
18 August 2026	Bayanbulag, MN	daily high min	11.2 C (52.2 F)	1.6 C (2.9 F)	24 years	15 of 100 (Routine)
17 August 2026	Bayanbulag, MN	daily high min	10.0 C (50.0 F)	1.7 C (3.1 F)	0 years	8 of 100 (Routine)

Extremes by Year

1983 to 2026

Yearly extremes at Bayanbulag: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	30.9 C (87.6 F)	1999	27.7 C (81.9 F)	43
Coldest night (TNn)	-44.1 C (-47.4 F)	1984	-39.0 C (-38.2 F)	43
Wettest day (Rx1day)	90.7 mm (3.6 in)	1984	14.2 mm (0.6 in)	43
Wettest five days (Rx5day)	90.7 mm (3.6 in)	1984	0.3 mm (0.01 in)	23
Longest dry spell (CDD)	89 days	1995	13 days	42

Hottest day (TXx)

The hottest day of the year at Bayanbulag, 1983 to 2026. The record is 30.9 C (87.6 F) in 1999, marked on the chart; the median year is 27.7 C (81.9 F).

Hottest day (TXx) at Bayanbulag by year
Year	Hottest day (TXx)
1983	10.2 C (50.4 F)
1984	22.7 C (72.9 F)
1985	26.9 C (80.4 F)
1986	27.6 C (81.7 F)
1987	25.7 C (78.3 F)
1988	26.2 C (79.2 F)
1989	25.2 C (77.4 F)
1990	25.4 C (77.7 F)
1991	29.2 C (84.6 F)
1992	28.0 C (82.4 F)
1993	27.7 C (81.9 F)
1994	25.2 C (77.4 F)
1995	28.8 C (83.8 F)
1996	26.7 C (80.1 F)
1997	28.2 C (82.8 F)
1998	28.7 C (83.7 F)
1999	30.9 C (87.6 F)
2000	29.2 C (84.6 F)
2001	28.4 C (83.1 F)
2002	28.9 C (84.0 F)
2003	25.1 C (77.2 F)
2004	28.8 C (83.8 F)
2005	27.6 C (81.7 F)
2006	27.7 C (81.9 F)
2007	28.6 C (83.5 F)
2008	27.7 C (81.9 F)
2009	25.4 C (77.7 F)
2010	27.7 C (81.9 F)
2011	29.9 C (85.8 F)
2012	26.0 C (78.8 F)
2013	25.7 C (78.3 F)
2015	28.2 C (82.8 F)
2016	28.6 C (83.5 F)
2017	29.3 C (84.7 F)
2018	26.8 C (80.2 F)
2019	24.7 C (76.5 F)
2020	26.1 C (79.0 F)
2021	27.2 C (81.0 F)
2022	29.2 C (84.6 F)
2023	30.1 C (86.2 F)
2024	27.5 C (81.5 F)
2025	28.9 C (84.0 F)
2026	29.5 C (85.1 F)

Coldest night (TNn)

The coldest night of the year at Bayanbulag, 1983 to 2026. The record is -44.1 C (-47.4 F) in 1984, marked on the chart; the median year is -39.0 C (-38.2 F).

Coldest night (TNn) at Bayanbulag by year
Year	Coldest night (TNn)
1983	-40.6 C (-41.1 F)
1984	-44.1 C (-47.4 F)
1985	-39.8 C (-39.6 F)
1986	-36.3 C (-33.3 F)
1987	-35.4 C (-31.7 F)
1988	-40.3 C (-40.5 F)
1989	-39.9 C (-39.8 F)
1990	-37.1 C (-34.8 F)
1991	-42.2 C (-44.0 F)
1992	-36.8 C (-34.2 F)
1993	-42.4 C (-44.3 F)
1994	-37.1 C (-34.8 F)
1995	-37.0 C (-34.6 F)
1996	-37.7 C (-35.9 F)
1997	-38.3 C (-36.9 F)
1998	-37.5 C (-35.5 F)
1999	-36.0 C (-32.8 F)
2000	-38.0 C (-36.4 F)
2001	-41.7 C (-43.1 F)
2002	-40.7 C (-41.3 F)
2003	-36.0 C (-32.8 F)
2004	-39.2 C (-38.6 F)
2005	-43.2 C (-45.8 F)
2006	-37.4 C (-35.3 F)
2007	-32.5 C (-26.5 F)
2008	-42.5 C (-44.5 F)
2009	-36.5 C (-33.7 F)
2010	-40.9 C (-41.6 F)
2011	-42.6 C (-44.7 F)
2012	-41.0 C (-41.8 F)
2013	-38.6 C (-37.5 F)
2015	-36.4 C (-33.5 F)
2016	-40.5 C (-40.9 F)
2017	-39.0 C (-38.2 F)
2018	-40.8 C (-41.4 F)
2019	-37.0 C (-34.6 F)
2020	-43.0 C (-45.4 F)
2021	-37.7 C (-35.9 F)
2022	-39.8 C (-39.6 F)
2023	-39.9 C (-39.8 F)
2024	-39.2 C (-38.6 F)
2025	-36.7 C (-34.1 F)
2026	-37.5 C (-35.5 F)

Wettest day (Rx1day)

The wettest day of the year at Bayanbulag, 1983 to 2026. The record is 90.7 mm (3.6 in) in 1984, marked on the chart; the median year is 14.2 mm (0.6 in).

Wettest day (Rx1day) at Bayanbulag by year
Year	Wettest day (Rx1day)
1983	0.3 mm (0.01 in)
1984	90.7 mm (3.6 in)
1985	4.1 mm (0.16 in)
1986	21.1 mm (0.8 in)
1987	6.1 mm (0.24 in)
1988	7.1 mm (0.28 in)
1989	22.1 mm (0.9 in)
1990	2.0 mm (0.08 in)
1991	0.0 mm (0.00 in)
1992	0.0 mm (0.00 in)
1993	0.0 mm (0.00 in)
1994	0.0 mm (0.00 in)
1995	0.0 mm (0.00 in)
1996	0.0 mm (0.00 in)
1997	0.0 mm (0.00 in)
1998	0.0 mm (0.00 in)
1999	14.2 mm (0.6 in)
2000	34.8 mm (1.4 in)
2001	16.0 mm (0.6 in)
2002	15.7 mm (0.6 in)
2003	21.1 mm (0.8 in)
2004	15.0 mm (0.6 in)
2005	21.8 mm (0.9 in)
2006	27.2 mm (1.1 in)
2007	18.5 mm (0.7 in)
2008	14.0 mm (0.6 in)
2009	11.9 mm (0.5 in)
2010	17.0 mm (0.7 in)
2011	29.0 mm (1.1 in)
2012	22.1 mm (0.9 in)
2013	7.1 mm (0.28 in)
2015	15.0 mm (0.6 in)
2016	30.0 mm (1.2 in)
2017	29.0 mm (1.1 in)
2018	71.9 mm (2.8 in)
2019	32.0 mm (1.3 in)
2020	10.9 mm (0.4 in)
2021	26.9 mm (1.1 in)
2022	5.3 mm (0.21 in)
2023	7.9 mm (0.31 in)
2024	9.9 mm (0.39 in)
2025	17.2 mm (0.7 in)
2026	8.0 mm (0.31 in)

Wettest five days (Rx5day)

The wettest five days of the year at Bayanbulag, 1983 to 2026. The record is 90.7 mm (3.6 in) in 1984, marked on the chart; the median year is 0.3 mm (0.01 in).

Wettest five days (Rx5day) at Bayanbulag by year
Year	Wettest five days (Rx5day)
1983	0.3 mm (0.01 in)
1984	90.7 mm (3.6 in)
1985	0.0 mm (0.00 in)
1986	21.1 mm (0.8 in)
1987	1.0 mm (0.04 in)
1988	7.1 mm (0.28 in)
1989	23.1 mm (0.9 in)
1990	0.0 mm (0.00 in)
1991	0.0 mm (0.00 in)
1992	0.0 mm (0.00 in)
1993	0.0 mm (0.00 in)
1994	0.0 mm (0.00 in)
1995	0.0 mm (0.00 in)
1996	0.0 mm (0.00 in)
1997	0.0 mm (0.00 in)
1998	0.0 mm (0.00 in)
1999	1.8 mm (0.07 in)
2000	0.0 mm (0.00 in)
2001	n/a
2002	3.6 mm (0.14 in)
2003	11.9 mm (0.5 in)
2004	15.0 mm (0.6 in)
2005	1.0 mm (0.04 in)
2006	n/a
2007	n/a
2008	n/a
2009	n/a
2010	n/a
2011	n/a
2012	n/a
2013	n/a
2015	n/a
2016	n/a
2017	n/a
2018	n/a
2019	n/a
2020	n/a
2021	n/a
2022	n/a
2023	13.7 mm (0.5 in)
2024	n/a
2025	n/a
2026	n/a

Longest dry spell (CDD)

The longest dry spell of the year at Bayanbulag, 1983 to 2026. The record is 89 days in 1995, marked on the chart; the median year is 13 days.

Longest dry spell (CDD) at Bayanbulag by year
Year	Longest dry spell (CDD)
1983	20 days
1984	23 days
1985	36 days
1986	28 days
1987	41 days
1988	24 days
1989	34 days
1990	46 days
1991	33 days
1992	55 days
1993	35 days
1994	55 days
1995	89 days
1996	33 days
1997	45 days
1998	37 days
1999	29 days
2000	6 days
2001	2 days
2002	24 days
2003	19 days
2004	52 days
2005	26 days
2006	1 day
2007	1 day
2008	1 day
2009	1 day
2010	1 day
2011	1 day
2012	1 day
2013	1 day
2015	1 day
2016	1 day
2017	1 day
2018	n/a
2019	1 day
2020	1 day
2021	1 day
2022	1 day
2023	1 day
2024	1 day
2025	1 day
2026	1 day

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 Bayanbulag standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Bayanbulag 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 2026-10-17. Last revised 17 October 2026 (2026-10-17).