Climate Yulin Airport 2020-2024

Climate and trends: average temperature, flight conditions, precipitation, wind speed and direction.

Calculated from historical METAR data of Taiyuan Wusu Airport (ZBYN) between 2020 and 2024.

VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	57.6	79	87	46	73	17
February	63.7	61	47	83	77	58
March	73.1	77	82	61	56	86
April	77.1		72	89	83	83
May	86.8		87	89	80	89
June	84.4		92	94	82	69
July	79.5		93	81	85	59
August	79.1		84	78	84	62
September	76.0		71	84	65	69
October	65.1		80	62	62	67
November	59.9		91	52	69	53
December	70.9		71	98	84	70
Average	73.1	72.6	80.1	76.3	75.3	65.7

14th best VFR conditions of China

VFR conditions during daylight period

Percentage of observations where the VFR minimums for ceiling and visibility are met: visibility of 8 km or more and a ceiling of 3,000 ft or more. Only observations between sunrise and sunset are taken into account.

Marginal VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	74.1	91	96	59	90	41
February	80.6	82	64	95	89	74
March	88.6	93	92	81	76	98
April	92.9		95	97	96	97
May	96.0		99	97	94	94
June	95.4		97	98	94	91
July	93.2		98	94	99	82
August	95.0		98	94	97	87
September	91.2		86	97	91	86
October	85.8		95	84	86	89
November	80.6		99	73	88	72
December	87.0		86	100	93	91
Average	88.6	88.6	92.4	89.3	91.0	83.9

Marginal VFR conditions or better during daylight period

Percentage of observations where the MVFR minimums for ceiling and visibility are met: visibility of 5 km or more and a ceiling of 1,000 ft or more. Only observations between sunrise and sunset are taken into account.

Maximum temperatures (°C)

Month	Average	2024	2023	2022	2021	2020
January	3.0	3	3	3	4	3
February	6.9	5	7	5	12	8
March	15.1	15	17	15	15	16
April	19.8		18	22	18	19
May	26.3		24	25	26	27
June	30.7		31	33	30	31
July	30.9		32	30	31	29
August	29.1		31	28	30	28
September	25.2		26	26	25	25
October	17.6		21	17	16	18
November	10.8		11	12	11	10
December	3.1		1	3	5	2
Average	17.0	7.5	18.6	18.7	18.4	17.9

31st highest temperature of China

Average highest temperature per day

The maximum temperature is typically observed some hours after noon.

Minimum temperatures (°C)

Month	Average	2024	2023	2022	2021	2020
January	-10.3	-9	-11	-9	-10	-8
February	-7.3	-6	-5	-9	-5	-6
March	1.1	2	1	1	3	1
April	6.5		6	7	7	5
May	12.3		13	11	12	12
June	17.4		17	19	18	18
July	20.3		20	20	21	19
August	18.9		20	20	19	18
September	13.1		15	12	15	12
October	5.1		6	5	5	4
November	-2.1		-3	0	-3	-1
December	-10.3		-10	-11	-9	-11
Average	4.4	-5.5	5.8	6.0	5.9	5.2

6th lowest temperature of China

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Precipitation (%)

Month	Average	2024	2023	2022	2021	2020
January	2.2	2	0	7	1	4
February	4.0	11	4	2	4	4
March	3.4	8	0	1	6	3
April	6.5		14	0	5	5
May	5.5		11	7	4	6
June	3.5		1	2	5	4
July	7.6		9	8	7	7
August	8.2		7	10	5	15
September	6.1		6	4	15	4
October	6.9		1	5	17	1
November	2.3		2	3	2	2
December	1.8		6	0	1	0
Average	5.1	6.9	5.2	4.1	5.9	4.7

Precipitation during daylight period

Percentage of observations with observed rain, drizzle, snow or hail. Only observations between sunrise and sunset are taken into account.

Wind speed (knots)

Month	Average	2024	2023	2022	2021	2020
January	4.7	5	6	4	6	3
February	5.5	6	5	5	5	5
March	6.3	7	5	7	6	7
April	7.5		8	7	8	8
May	7.0		7	7	8	7
June	5.5		6	6	6	5
July	5.4		7	5	5	5
August	5.2		5	6	6	4
September	4.5		5	5	5	5
October	4.4		4	5	4	4
November	5.1		6	5	6	5
December	5.0		6	6	5	4
Average	5.6	5.9	5.8	5.6	5.7	5.1

31st highest wind speed of China

Average wind speed

Excluding wind gusts. Only observations between sunrise and sunset are taken into account.

Prevailing wind direction

Month	2024	2023	2022	2021	2020
January	321°	288°	241°	280°	185°
February	048°	014°	288°	270°	256°
March	275°	238°	295°	290°	282°
April		298°	269°	325°	344°
May		296°	258°	278°	278°
June		223°	232°	303°	199°
July		303°	079°	122°	146°
August		099°	067°	052°	082°
September		124°	228°	157°	012°
October		265°	313°	002°	271°
November		290°	304°	268°	306°
December		316°	285°	250°	279°

Prevailing wind direction

Average wind direction, weighed by wind speed. Only observations between sunrise and sunset are taken into account.