Bayan-Ovoo Weather Records (MGM00044302)
Record envelope, standing records and threshold days for Bayan-Ovoo (MGM00044302), Mongolia, with 58 years of record.
Key Facts for Bayan-Ovoo
- Bayan-Ovoo (MGM00044302) is a weather station in Mongolia at 47.78 latitude and 112.12 longitude, 926 m (3,038 ft) above sea level.
- The station reports from 1969 to 2026, 58 years of record.
- 1,464 records set at Bayan-Ovoo still stand.
- Records are tracked for tmax, tmin: an element needs 30 years of data to be eligible.
- Bayan-Ovoo set a daily record high minimum temperature of 4.7 C (40.5 F) on 7 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, 47.78 latitude, 112.12 longitude.
- Elevation: 926 m (3,038 ft).
- Period of record: 1969 to 2026, 58 years.
- Eligible elements: tmax, tmin.
Daily Record Envelope and 2026
8 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 1.9 C (35.4 F) | -41.0 C (-41.8 F) | -9.7 C (14.5 F) | -35.8 C (-32.4 F) |
| Feb | 8.0 C (46.4 F) | -40.2 C (-40.4 F) | 1.7 C (35.1 F) | -33.8 C (-28.8 F) |
| Mar | 22.3 C (72.1 F) | -37.2 C (-35.0 F) | 8.8 C (47.8 F) | -31.7 C (-25.1 F) |
| Apr | 30.5 C (86.9 F) | -22.2 C (-8.0 F) | 24.1 C (75.4 F) | -9.5 C (14.9 F) |
| May | 34.9 C (94.8 F) | -10.4 C (13.3 F) | 30.5 C (86.9 F) | -2.5 C (27.5 F) |
| Jun | 39.7 C (103.5 F) | -2.8 C (27.0 F) | 27.6 C (81.7 F) | 1.0 C (33.8 F) |
| Jul | 40.2 C (104.4 F) | 1.1 C (34.0 F) | 33.4 C (92.1 F) | 9.8 C (49.6 F) |
| Aug | 37.9 C (100.2 F) | -4.0 C (24.8 F) | 34.2 C (93.6 F) | 5.3 C (41.5 F) |
| Sep | 34.1 C (93.4 F) | -12.0 C (10.4 F) | 30.5 C (86.9 F) | -4.2 C (24.4 F) |
| Oct | 25.8 C (78.4 F) | -25.0 C (-13.0 F) | 17.6 C (63.7 F) | -5.3 C (22.5 F) |
| Nov | 15.6 C (60.1 F) | -34.8 C (-30.6 F) | n/a | n/a |
| Dec | 3.6 C (38.5 F) | -38.0 C (-36.4 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1969 | 2 |
| 1970 | 9 |
| 1971 | 14 |
| 1983 | 2 |
| 1984 | 30 |
| 1985 | 21 |
| 1986 | 26 |
| 1987 | 39 |
| 1988 | 30 |
| 1989 | 40 |
| 1990 | 24 |
| 1991 | 19 |
| 1992 | 14 |
| 1993 | 20 |
| 1994 | 15 |
| 1995 | 28 |
| 1996 | 30 |
| 1997 | 29 |
| 1998 | 45 |
| 1999 | 44 |
| 2000 | 34 |
| 2001 | 47 |
| 2002 | 54 |
| 2003 | 31 |
| 2004 | 44 |
| 2010 | 78 |
| 2011 | 27 |
| 2012 | 41 |
| 2013 | 35 |
| 2014 | 37 |
| 2015 | 58 |
| 2016 | 57 |
| 2017 | 37 |
| 2018 | 32 |
| 2019 | 50 |
| 2020 | 35 |
| 2021 | 24 |
| 2022 | 47 |
| 2023 | 44 |
| 2024 | 40 |
| 2025 | 80 |
| 2026 | 51 |
Wettest Day of Each Month
Aug: 197.1 mm (7.8 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 23.1 mm (0.9 in) | 11 January 1991 |
| Feb | 4.8 mm (0.19 in) | 26 February 2018 |
| Mar | 8.1 mm (0.32 in) | 14 March 2023 |
| Apr | 14.0 mm (0.6 in) | 10 April 2003 |
| May | 98.0 mm (3.9 in) | 11 May 1989 |
| Jun | 121.2 mm (4.8 in) | 27 June 2019 |
| Jul | 66.0 mm (2.6 in) | 9 July 2025 |
| Aug | 197.1 mm (7.8 in) | 6 August 1984 |
| Sep | 42.0 mm (1.7 in) | 13 September 2025 |
| Oct | 20.8 mm (0.8 in) | 13 October 2011 |
| Nov | 9.9 mm (0.39 in) | 6 November 2002 |
| Dec | 50.0 mm (2.0 in) | 29 December 1993 |
Period of Record Coverage
1969 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1969 | 50 | 14% | No |
| 1970 | 104 | 28% | No |
| 1971 | 80 | 22% | No |
| 1983 | 58 | 16% | No |
| 1984 | 295 | 81% | No |
| 1985 | 306 | 84% | No |
| 1986 | 304 | 83% | No |
| 1987 | 304 | 83% | No |
| 1988 | 340 | 93% | Yes |
| 1989 | 309 | 85% | No |
| 1990 | 310 | 85% | No |
| 1991 | 274 | 75% | No |
| 1992 | 198 | 54% | No |
| 1993 | 285 | 78% | No |
| 1994 | 295 | 81% | No |
| 1995 | 258 | 71% | No |
| 1996 | 260 | 71% | No |
| 1997 | 302 | 83% | No |
| 1998 | 307 | 84% | No |
| 1999 | 308 | 84% | No |
| 2000 | 307 | 84% | No |
| 2001 | 312 | 85% | No |
| 2002 | 335 | 92% | Yes |
| 2003 | 328 | 90% | No |
| 2004 | 325 | 89% | No |
| 2010 | 348 | 95% | Yes |
| 2011 | 350 | 96% | Yes |
| 2012 | 358 | 98% | Yes |
| 2013 | 358 | 98% | Yes |
| 2014 | 357 | 98% | Yes |
| 2015 | 356 | 98% | Yes |
| 2016 | 348 | 95% | Yes |
| 2017 | 355 | 97% | Yes |
| 2018 | 356 | 98% | Yes |
| 2019 | 359 | 98% | Yes |
| 2020 | 356 | 97% | Yes |
| 2021 | 346 | 95% | Yes |
| 2022 | 355 | 97% | Yes |
| 2023 | 340 | 93% | Yes |
| 2024 | 338 | 92% | Yes |
| 2025 | 350 | 96% | Yes |
| 2026 | 269 | 74% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 7 October 2026 | Bayan-Ovoo, MN | daily high min (Provisional) | 4.7 C (40.5 F) | 3.3 C (5.9 F) | 41 years | 24 of 100 (Routine) |
| 6 October 2026 | Bayan-Ovoo, MN | daily high min (Provisional) | 5.9 C (42.6 F) | 4.1 C (7.4 F) | 11 years | 16 of 100 (Routine) |
| 2 October 2026 | Bayan-Ovoo, MN | daily high min (Provisional) | 3.8 C (38.8 F) | 2.3 C (4.1 F) | 8 years | 12 of 100 (Routine) |
| 27 September 2026 | Bayan-Ovoo, MN | daily high min (Provisional) | 7.2 C (45.0 F) | 3.3 C (5.9 F) | 0 years | 12 of 100 (Routine) |
| 19 September 2026 | Bayan-Ovoo, MN | daily high min (Provisional) | 9.8 C (49.6 F) | 4.7 C (8.5 F) | 7 years | 17 of 100 (Routine) |
| 18 September 2026 | Bayan-Ovoo, MN | daily high min (Provisional) | 8.4 C (47.1 F) | 1.0 C (1.8 F) | 0 years | 7 of 100 (Routine) |
| 17 September 2026 | Bayan-Ovoo, MN | daily high min (Provisional) | 10.2 C (50.4 F) | 3.4 C (6.1 F) | 25 years | 19 of 100 (Routine) |
| 16 September 2026 | Bayan-Ovoo, MN | daily high min (Provisional) | 14.6 C (58.3 F) | 8.5 C (15.3 F) | 9 years | 25 of 100 (Routine) |
| 15 September 2026 | Bayan-Ovoo, MN | daily high min (Provisional) | 10.2 C (50.4 F) | 2.0 C (3.6 F) | 4 years | 10 of 100 (Routine) |
| 11 September 2026 | Bayan-Ovoo, MN | daily high min (Provisional) | 8.9 C (48.0 F) | 1.7 C (3.1 F) | 5 years | 9 of 100 (Routine) |
| 7 September 2026 | Bayan-Ovoo, MN | daily low min (Provisional) | 0.1 C (32.2 F) | 0.1 C (0.2 F) | 36 years | 16 of 100 (Routine) |
| 5 September 2026 | Bayan-Ovoo, MN | daily high min (Provisional) | 9.6 C (49.3 F) | 0.2 C (0.4 F) | 11 years | 8 of 100 (Routine) |
| 3 September 2026 | Bayan-Ovoo, MN | monthly high min (Provisional) | 16.4 C (61.5 F) | 2.9 C (5.2 F) | 21 years | 27 of 100 (Routine) |
| 1 September 2026 | Bayan-Ovoo, MN | daily high min (Provisional) | 12.4 C (54.3 F) | 0.4 C (0.7 F) | 27 years | 13 of 100 (Routine) |
| 30 August 2026 | Bayan-Ovoo, MN | daily high min (Provisional) | 11.4 C (52.5 F) | 0.2 C (0.4 F) | 35 years | 15 of 100 (Routine) |
| 17 August 2026 | Bayan-Ovoo, MN | daily high min (Provisional) | 15.6 C (60.1 F) | 0.6 C (1.1 F) | 28 years | 14 of 100 (Routine) |
| 13 August 2026 | Bayan-Ovoo, MN | monthly high min | 20.3 C (68.5 F) | 0.1 C (0.2 F) | 10 years | 18 of 100 (Routine) |
| 9 August 2026 | Bayan-Ovoo, MN | daily high max | 34.2 C (93.6 F) | 1.2 C (2.2 F) | 36 years | 18 of 100 (Routine) |
| 9 August 2026 | Bayan-Ovoo, MN | daily high min | 17.5 C (63.5 F) | 0.4 C (0.7 F) | 1 year | 6 of 100 (Routine) |
| 4 August 2026 | Bayan-Ovoo, MN | daily high min | 20.1 C (68.2 F) | 4.0 C (7.2 F) | 8 years | 18 of 100 (Routine) |
Extremes by Year
1969 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 40.2 C (104.4 F) | 2010 | 34.6 C (94.3 F) | 42 |
| Coldest night (TNn) | -41.0 C (-41.8 F) | 1990 | -35.9 C (-32.6 F) | 42 |
| Wettest day (Rx1day) | 197.1 mm (7.8 in) | 1984 | 29.0 mm (1.1 in) | 39 |
| Wettest five days (Rx5day) | 50.0 mm (2.0 in) | 1993 | 12.1 mm (0.5 in) | 22 |
| Longest dry spell (CDD) | 63 days | 1998 | 16 days | 37 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1969 | 23.9 C (75.0 F) |
| 1970 | 37.2 C (99.0 F) |
| 1971 | 28.9 C (84.0 F) |
| 1983 | 16.3 C (61.3 F) |
| 1984 | 33.7 C (92.7 F) |
| 1985 | 31.0 C (87.8 F) |
| 1986 | 32.5 C (90.5 F) |
| 1987 | 39.8 C (103.6 F) |
| 1988 | 34.7 C (94.5 F) |
| 1989 | 34.5 C (94.1 F) |
| 1990 | 33.5 C (92.3 F) |
| 1991 | 35.4 C (95.7 F) |
| 1992 | 28.5 C (83.3 F) |
| 1993 | 31.3 C (88.3 F) |
| 1994 | 32.6 C (90.7 F) |
| 1995 | 33.7 C (92.7 F) |
| 1996 | 32.6 C (90.7 F) |
| 1997 | 38.2 C (100.8 F) |
| 1998 | 33.3 C (91.9 F) |
| 1999 | 39.4 C (102.9 F) |
| 2000 | 37.0 C (98.6 F) |
| 2001 | 36.8 C (98.2 F) |
| 2002 | 36.8 C (98.2 F) |
| 2003 | 33.3 C (91.9 F) |
| 2004 | 38.2 C (100.8 F) |
| 2010 | 40.2 C (104.4 F) |
| 2011 | 34.4 C (93.9 F) |
| 2012 | 34.0 C (93.2 F) |
| 2013 | 30.1 C (86.2 F) |
| 2014 | 34.2 C (93.6 F) |
| 2015 | 36.9 C (98.4 F) |
| 2016 | 38.3 C (100.9 F) |
| 2017 | 37.5 C (99.5 F) |
| 2018 | 35.2 C (95.4 F) |
| 2019 | 36.0 C (96.8 F) |
| 2020 | 36.0 C (96.8 F) |
| 2021 | 35.3 C (95.5 F) |
| 2022 | 35.5 C (95.9 F) |
| 2023 | 38.5 C (101.3 F) |
| 2024 | 32.5 C (90.5 F) |
| 2025 | 34.8 C (94.6 F) |
| 2026 | 34.2 C (93.6 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1969 | -33.9 C (-29.0 F) |
| 1970 | -36.1 C (-33.0 F) |
| 1971 | -37.2 C (-35.0 F) |
| 1983 | -32.9 C (-27.2 F) |
| 1984 | -36.1 C (-33.0 F) |
| 1985 | -36.4 C (-33.5 F) |
| 1986 | -38.0 C (-36.4 F) |
| 1987 | -40.5 C (-40.9 F) |
| 1988 | -32.5 C (-26.5 F) |
| 1989 | -32.3 C (-26.1 F) |
| 1990 | -41.0 C (-41.8 F) |
| 1991 | -35.6 C (-32.1 F) |
| 1992 | -32.4 C (-26.3 F) |
| 1993 | -32.2 C (-26.0 F) |
| 1994 | -34.9 C (-30.8 F) |
| 1995 | -31.0 C (-23.8 F) |
| 1996 | -34.0 C (-29.2 F) |
| 1997 | -36.0 C (-32.8 F) |
| 1998 | -35.2 C (-31.4 F) |
| 1999 | -36.7 C (-34.1 F) |
| 2000 | -36.5 C (-33.7 F) |
| 2001 | -40.2 C (-40.4 F) |
| 2002 | -37.4 C (-35.3 F) |
| 2003 | -35.0 C (-31.0 F) |
| 2004 | -34.5 C (-30.1 F) |
| 2010 | -39.4 C (-38.9 F) |
| 2011 | -33.8 C (-28.8 F) |
| 2012 | -38.4 C (-37.1 F) |
| 2013 | -37.2 C (-35.0 F) |
| 2014 | -36.7 C (-34.1 F) |
| 2015 | -37.9 C (-36.2 F) |
| 2016 | -39.1 C (-38.4 F) |
| 2017 | -36.3 C (-33.3 F) |
| 2018 | -35.3 C (-31.5 F) |
| 2019 | -34.3 C (-29.7 F) |
| 2020 | -35.4 C (-31.7 F) |
| 2021 | -35.3 C (-31.5 F) |
| 2022 | -38.0 C (-36.4 F) |
| 2023 | -37.7 C (-35.9 F) |
| 2024 | -34.7 C (-30.5 F) |
| 2025 | -35.5 C (-31.9 F) |
| 2026 | -35.8 C (-32.4 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1969 | n/a |
| 1970 | n/a |
| 1971 | n/a |
| 1983 | 6.1 mm (0.24 in) |
| 1984 | 197.1 mm (7.8 in) |
| 1985 | 37.1 mm (1.5 in) |
| 1986 | 37.1 mm (1.5 in) |
| 1987 | 39.9 mm (1.6 in) |
| 1988 | 28.2 mm (1.1 in) |
| 1989 | 98.0 mm (3.9 in) |
| 1990 | 7.1 mm (0.28 in) |
| 1991 | 23.1 mm (0.9 in) |
| 1992 | 0.0 mm (0.00 in) |
| 1993 | 50.0 mm (2.0 in) |
| 1994 | 50.0 mm (2.0 in) |
| 1995 | 0.0 mm (0.00 in) |
| 1996 | 0.0 mm (0.00 in) |
| 1997 | 1.0 mm (0.04 in) |
| 1998 | 0.0 mm (0.00 in) |
| 1999 | 13.0 mm (0.5 in) |
| 2000 | 31.0 mm (1.2 in) |
| 2001 | 10.2 mm (0.4 in) |
| 2002 | 40.6 mm (1.6 in) |
| 2003 | 14.0 mm (0.6 in) |
| 2004 | 12.2 mm (0.5 in) |
| 2010 | 17.0 mm (0.7 in) |
| 2011 | 42.7 mm (1.7 in) |
| 2012 | 64.0 mm (2.5 in) |
| 2013 | 51.1 mm (2.0 in) |
| 2014 | 29.0 mm (1.1 in) |
| 2015 | 22.1 mm (0.9 in) |
| 2016 | 41.9 mm (1.6 in) |
| 2017 | 38.1 mm (1.5 in) |
| 2018 | 37.1 mm (1.5 in) |
| 2019 | 121.2 mm (4.8 in) |
| 2020 | 30.0 mm (1.2 in) |
| 2021 | 23.1 mm (0.9 in) |
| 2022 | 20.8 mm (0.8 in) |
| 2023 | 15.0 mm (0.6 in) |
| 2024 | 42.9 mm (1.7 in) |
| 2025 | 66.0 mm (2.6 in) |
| 2026 | 12.0 mm (0.5 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1969 | n/a |
| 1970 | n/a |
| 1971 | n/a |
| 1983 | 6.1 mm (0.24 in) |
| 1984 | 19.1 mm (0.8 in) |
| 1985 | 8.4 mm (0.33 in) |
| 1986 | 48.7 mm (1.9 in) |
| 1987 | 11.9 mm (0.5 in) |
| 1988 | 27.9 mm (1.1 in) |
| 1989 | 26.9 mm (1.1 in) |
| 1990 | 7.1 mm (0.28 in) |
| 1991 | 23.1 mm (0.9 in) |
| 1992 | 0.0 mm (0.00 in) |
| 1993 | 50.0 mm (2.0 in) |
| 1994 | 50.0 mm (2.0 in) |
| 1995 | 0.0 mm (0.00 in) |
| 1996 | 0.0 mm (0.00 in) |
| 1997 | 1.0 mm (0.04 in) |
| 1998 | 0.0 mm (0.00 in) |
| 1999 | 2.0 mm (0.08 in) |
| 2000 | 1.8 mm (0.07 in) |
| 2001 | n/a |
| 2002 | 13.5 mm (0.5 in) |
| 2003 | 17.6 mm (0.7 in) |
| 2004 | 12.2 mm (0.5 in) |
| 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 |
| 2019 | n/a |
| 2020 | n/a |
| 2021 | 41.9 mm (1.6 in) |
| 2022 | n/a |
| 2023 | n/a |
| 2024 | n/a |
| 2025 | n/a |
| 2026 | n/a |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1969 | n/a |
| 1970 | n/a |
| 1971 | n/a |
| 1983 | 20 days |
| 1984 | 21 days |
| 1985 | 22 days |
| 1986 | 16 days |
| 1987 | 23 days |
| 1988 | 20 days |
| 1989 | 35 days |
| 1990 | 30 days |
| 1991 | 30 days |
| 1992 | 21 days |
| 1993 | 24 days |
| 1994 | 32 days |
| 1995 | 26 days |
| 1996 | 28 days |
| 1997 | 21 days |
| 1998 | 63 days |
| 1999 | 37 days |
| 2000 | 8 days |
| 2001 | 1 day |
| 2002 | 16 days |
| 2003 | 23 days |
| 2004 | 16 days |
| 2010 | 1 day |
| 2011 | 1 day |
| 2012 | 2 days |
| 2013 | 1 day |
| 2014 | n/a |
| 2015 | 2 days |
| 2016 | 1 day |
| 2017 | 1 day |
| 2018 | 1 day |
| 2019 | 1 day |
| 2020 | 1 day |
| 2021 | n/a |
| 2022 | 2 days |
| 2023 | 1 day |
| 2024 | 1 day |
| 2025 | 1 day |
| 2026 | 2 days |
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
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 . Last revised (2026-10-13).