Climate Yancheng Airport 2020-2024

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

Calculated from historical METAR data of Nanjing Lukou International Airport (ZSNJ) between 2020 and 2024.

VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	33.2	37	61	22	59	7
February	41.3	29	45	48	55	49
March	51.8	48	62	59	45	57
April	65.0		71	80	56	85
May	68.2		72	76	68	68
June	67.5		67	89	71	58
July	73.6		79	92	71	40
August	77.4		76	87	65	90
September	65.4		56	72	71	75
October	67.0		70	79	59	74
November	54.7		65	41	67	56
December	47.0		47	61	63	48
Average	57.5	38.6	64.7	68.5	62.7	59.0

27th 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	50.3	53	82	46	71	25
February	64.8	54	70	76	74	70
March	76.1	73	87	80	72	80
April	85.1		93	94	76	97
May	86.8		90	95	80	88
June	87.3		84	99	87	83
July	89.6		96	99	87	68
August	95.7		95	98	92	100
September	88.0		87	94	96	89
October	85.7		88	92	79	86
November	75.7		80	71	81	76
December	66.5		67	81	79	66
Average	77.7	60.5	85.4	86.2	81.3	77.6

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	8.4	9	11	8	9	8
February	10.2	9	10	8	15	13
March	17.0	17	18	19	16	17
April	22.2		22	23	21	21
May	27.1		27	27	27	28
June	30.1		30	32	30	29
July	32.8		33	36	32	28
August	33.3		33	36	31	35
September	28.6		28	28	31	28
October	22.8		25	22	24	22
November	17.7		18	18	18	17
December	10.1		10	9	13	9
Average	20.5	11.8	22.1	22.6	22.2	21.2

18th 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	0.0	-1	-2	1	-1	2
February	1.9	1	2	1	5	3
March	7.3	7	8	9	8	7
April	12.1		12	12	12	10
May	17.6		17	16	18	19
June	22.2		22	23	23	23
July	25.6		26	27	26	23
August	25.3		25	27	24	26
September	20.6		22	20	22	20
October	13.4		14	13	15	13
November	7.6		6	10	7	9
December	0.4		0	0	0	0
Average	11.6	2.4	12.6	13.5	13.2	12.8

19th 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	15.4	12	7	18	8	28
February	16.3	31	15	18	12	12
March	11.7	10	10	13	14	14
April	6.8		8	6	12	3
May	7.0		9	3	11	5
June	10.1		15	3	12	17
July	10.6		11	2	20	25
August	6.6		7	1	11	2
September	9.0		15	7	2	11
October	8.1		5	9	11	11
November	8.0		4	8	4	13
December	10.4		11	9	3	8
Average	10.7	17.0	9.6	7.7	10.2	12.5

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	5.7	5	6	6	7	5
February	6.3	6	6	6	8	6
March	6.7	6	7	7	7	7
April	6.7		8	6	7	7
May	6.5		6	6	6	7
June	6.7		6	8	6	7
July	6.8		7	7	8	6
August	6.8		6	7	6	6
September	5.7		5	6	6	5
October	5.8		5	7	5	6
November	5.9		6	5	7	6
December	5.1		5	5	5	5
Average	6.2	5.7	6.1	6.4	6.4	6.1

18th 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	022°	026°	069°	310°	028°
February	032°	069°	073°	100°	080°
March	068°	104°	092°	086°	090°
April		107°	105°	082°	084°
May		134°	124°	201°	171°
June		194°	180°	126°	137°
July		192°	222°	134°	114°
August		090°	222°	089°	213°
September		070°	050°	081°	055°
October		079°	076°	065°	068°
November		312°	065°	328°	072°
December		328°	359°	013°	040°

Prevailing wind direction

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