Ulan Bator weather records
Record high and low temperatures for Ulan Bator, by month, by season, and all-time, with the dates they occurred, across 1980–2026 of daily climate history. Its hottest day on record reached 35°C on 1999-07-24; its coldest fell to -42°C on 2018-01-21.
Records by month
The warmest (▲) and coldest (▼) both the daytime high and the overnight low have ever been in each calendar month, so each column shows its record high and its record low. Tap a month for its full averages and typical range.
| Month | Daytime high | Overnight low |
|---|---|---|
| January | -4°C2002-01-11
-35°C1980-01-28
|
-11°C2002-01-12
-42°C2018-01-21
|
| February | 7°C2007-02-27
-29°C2001-02-05
|
-10°C2007-02-27
-41°C2024-02-19
|
| March | 17°C2002-03-30
-22°C2010-03-04
|
2°C2002-03-31
-35°C2010-03-04
|
| April | 26°C2020-04-30
-13°C1984-04-04
|
10°C2020-04-30
-27°C1984-04-03
|
| May | 30°C2017-05-17
-5°C2001-05-03
|
14°C1996-05-30
-13°C1995-05-01
|
| June | 34°C2010-06-26
4°C2024-06-21
|
19°C2010-06-27
-5°C1992-06-03
|
| July | 35°C1999-07-24
7°C1988-07-02
|
22°C1999-07-24
0°C1988-07-02
|
| August | 33°C2016-08-02
5°C1996-08-31
|
19°C2016-08-02
-2°C1996-08-31
|
| September | 28°C2014-09-03
-5°C1982-09-25
|
15°C1994-09-01
-14°C1989-09-17
|
| October | 21°C2025-10-02
-13°C1981-10-30
|
5°C2025-10-01
-27°C2002-10-31
|
| November | 9°C2019-11-01
-27°C2016-11-20
|
-4°C2009-11-05
-38°C2016-11-19
|
| December | 2°C1989-12-02
-30°C1985-12-05
|
-9°C1987-12-25
-40°C2023-12-15
|
Records by season
The warmest (▲) and coldest (▼) both the daytime high and the overnight low have reached in each meteorological season (Northern Hemisphere, each a three-month span).
| Season | Daytime high | Overnight low |
|---|---|---|
| Winter (Dec–Feb) | 7°C2007-02-27
-35°C1980-01-28
|
-9°C1987-12-25
-42°C2018-01-21
|
| Spring (Mar–May) | 30°C2017-05-17
-22°C2010-03-04
|
14°C1996-05-30
-35°C2010-03-04
|
| Summer (Jun–Aug) | 35°C1999-07-24
4°C2024-06-21
|
22°C1999-07-24
-5°C1992-06-03
|
| Autumn (Sep–Nov) | 28°C2014-09-03
-27°C2016-11-20
|
15°C1994-09-01
-38°C2016-11-19
|
All-time records
The most extreme value Ulan Bator has recorded for each metric across its entire history.
High
Low
Feels-like
Humidity
Wind
Gust
Precip
For rainfall, the “driest” figure is the longest run of consecutive days without measurable rain, dated to when that dry spell began.