Weather archive in Ulan Bator / Songiin (airport)
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| Date / Local time | T | Po | P | Pa | U | DD | Ff | ff10 | ff3 | N | WW | W1 | W2 | Tn | Tx | Cl | Nh | H | Cm | Ch | VV | Td | RRR | tR | E | Tg | E' | sss | |
| 2025 December 9, Tuesday | 20 | -17.1 1 | 654.7 25.78 872.86 872.86 | 775.6 30.54 1034.05 1034.05 | 0.6 0.02 0.8 0.8 | 77 | Wind blowing from the west | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas | State of sky on the whole unchanged. | Snow and/or other types of solid precipitation | Cloud covering more than 1/2 of the sky throughout the appropriate period. | -14.4 6 | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas | 2000-2500 6562-8202 | Altostratus opacus or Nimbostratus. | No Cirrus, Cirrocumulus or Cirrostratus. | -20.2 -4 | Trace of precipitation Trace of precipitation | 12 | ||||||||
17 | -17.5 1 | 654.1 25.75 872.06 872.06 | 775.1 30.52 1033.38 1033.38 | 0.1 0 0.13 0.13 | 72 | Wind blowing from the south | Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft) | 90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas | Visibility reduced by smoke, e.g. veldt or forest fires, industrial smoke or volcanic ashes. | Cloud covering more than 1/2 of the sky throughout the appropriate period. | Cloud covering more than 1/2 of the sky throughout the appropriate period. | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 40%. 4/10. 3 oktas | 2000-2500 6562-8202 | Altocumulus translucidus at a single level. | Cirrocumulus alone, or Cirrocumulus accompanied by Cirrus or Cirrostratus or both, but Cirrocumulus is predominant. | 20.0 12.4 | -21.3 -6 | |||||||||||
14 | -15.8 4 | 654.0 25.75 871.93 871.93 | 774.1 30.48 1032.05 1032.05 | -0.7 -0.03 -0.93 -0.93 | 62 | Wind blowing from the south-southwest | Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft) | 90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas | Visibility reduced by smoke, e.g. veldt or forest fires, industrial smoke or volcanic ashes. | Cloud covering more than 1/2 of the sky throughout the appropriate period. | Cloud covering more than 1/2 of the sky throughout the appropriate period. | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 20–30%. 2/10–3/10. 2 oktas | 2000-2500 6562-8202 | Altocumulus translucidus at a single level. | Cirrocumulus alone, or Cirrocumulus accompanied by Cirrus or Cirrostratus or both, but Cirrocumulus is predominant. | 10.0 6.2 | -21.4 -7 | |||||||||||
11 | -19.4 -3 | 654.7 25.78 872.86 872.86 | 776.9 30.59 1035.78 1035.78 | 0.9 0.04 1.2 1.2 | 77 | Calm, no wind | Calm | 90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas | Visibility reduced by smoke, e.g. veldt or forest fires, industrial smoke or volcanic ashes. | Cloud covering more than 1/2 of the sky throughout the appropriate period. | Cloud covering more than 1/2 of the sky during part of the appropriate period and covering 1/2 or less during part of the period. | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 20–30%. 2/10–3/10. 2 oktas | 2000-2500 6562-8202 | Patches (often lenticular) of Altocumulus translucidus, continually changing and occurring at one or more levels. | Cirrostratus not progressively invading the sky and not entirely covering it. | 10.0 6.2 | -22.4 -8 | |||||||||||
08 | -26.2 -15 | 653.8 25.74 871.66 871.66 | 779.5 30.69 1039.25 1039.25 | 0.4 0.02 0.53 0.53 | 76 | Calm, no wind | Calm | 20–30%. 2/10–3/10. 2 oktas | -29.5 -21 | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0 | 2000-2500 6562-8202 | Patches (often lenticular) of Altocumulus translucidus, continually changing and occurring at one or more levels. | Cirrus uncinus or fibratus, or both, progressively invading the sky; they generally thicken as a whole. | -29.2 -21 | Even layer of loose dry snow covering ground completely. | 8 3.1 | ||||||||||||
05 | -26.4 -16 | 653.4 25.72 871.13 871.13 | 779.2 30.68 1038.85 1038.85 | -0.1 -0 -0.13 -0.13 | 76 | Calm, no wind | Calm | no clouds no clouds no clouds | -29.4 -21 | ||||||||||||||||||||
02 | -24.3 -12 | 653.5 25.73 871.26 871.26 | 778.1 30.63 1037.38 1037.38 | -0.2 -0.01 -0.27 -0.27 | 78 | Wind blowing from the south | Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft) | 20–30%. 2/10–3/10. 2 oktas | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 20–30%. 2/10–3/10. 2 oktas | 2000-2500 6562-8202 | Patches (often lenticular) of Altocumulus translucidus, continually changing and occurring at one or more levels. | No Cirrus, Cirrocumulus or Cirrostratus. | -27.0 -17 | |||||||||||||||
| December 8, Monday | 23 | -22.4 -8 | 653.7 25.74 871.53 871.53 | 777.3 30.6 1036.32 1036.32 | 0.2 0.01 0.27 0.27 | 73 | Wind blowing from the south-east | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 50%. 5/10. 4 oktas | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 20–30%. 2/10–3/10. 2 oktas | 2000-2500 6562-8202 | Patches (often lenticular) of Altocumulus translucidus, continually changing and occurring at one or more levels. | Cirrus uncinus or fibratus, or both, progressively invading the sky; they generally thicken as a whole. | -25.9 -15 | ||||||||||||||
20 | -22.2 -8 | 653.5 25.73 871.26 871.26 | 776.9 30.59 1035.78 1035.78 | 0.3 0.01 0.4 0.4 | 66 | Wind blowing from the south-east | Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | -13.3 8 | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 50%. 5/10. 4 oktas | 2000-2500 6562-8202 | Altocumulus translucidus in bands, or one or more layers of Altocumulus translucidus or opacus, progressively invading the sky; these Altocumulus clouds generally thicken as a whole. | Cirrus uncinus or fibratus, or both, progressively invading the sky; they generally thicken as a whole. | -26.8 -16 | ||||||||||||||