Climate Camp Humphreys (A-511) Desiderio Army Airfield 2020-2024

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

Calculated from historical METAR data of Camp Humphreys (A-511) Desiderio Army Airfield (RKSG) between 2020 and 2024.

VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	72.8	55	72	88	78	71
February	73.8	58	80	91	76	72
March	69.8	69	84	72	62	81
April	79.8		68	91	87	94
May	75.9		84	95	71	69
June	71.8		72	80	78	59
July	72.9		62	82	87	53
August	70.9		75	63	75	59
September	82.1		71	91	87	85
October	84.5		91	87	89	77
November	72.2		81	77	75	71
December	74.0		61	78	79	76
Average	73.7	60.5	74.5	82.2	78.5	72.2

8th best VFR conditions of South Korea

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	83.7	76	79	91	90	85
February	84.1	84	84	93	89	80
March	82.7	85	90	87	77	92
April	91.9		84	98	96	99
May	89.9		93	99	85	89
June	92.5		92	99	92	91
July	90.5		85	95	99	85
August	89.4		90	87	89	86
September	93.0		87	93	99	95
October	93.0		94	95	94	91
November	85.9		93	87	87	90
December	85.1		79	84	86	86
Average	87.6	81.3	87.6	92.6	90.2	89.2

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	4	3	3	2	6
February	6.3	8	7	5	8	7
March	13.5	12	16	14	14	13
April	18.6		19	21	19	17
May	23.1		24	25	22	23
June	27.3		28	28	28	28
July	29.9		30	31	32	27
August	30.1		31	29	30	31
September	26.0		28	27	27	26
October	20.2		21	19	21	22
November	12.8		12	15	13	13
December	4.5		6	2	6	5
Average	16.5	8.2	18.7	18.7	18.5	18.0

6th highest temperature of South Korea

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	-6.2	-4	-6	-7	-8	-2
February	-4.7	0	-3	-6	-3	-1
March	2.4	2	2	2	3	3
April	6.7		9	3	9	6
May	13.5		15	12	13	14
June	18.9		19	20	19	20
July	23.0		24	24	23	21
August	22.4		23	23	23	24
September	17.0		20	18	19	17
October	9.4		10	10	8	9
November	2.8		2	4	3	3
December	-4.1		-2	-6	-4	-4
Average	7.4	-1.6	9.4	8.4	9.0	9.1

4th lowest temperature of South Korea

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Precipitation (%)

Month	Average	2024	2023	2022	2021	2020
January	8.2	20	11	4	6	10
February	5.9	18	0	5	1	12
March	4.9	6	3	7	10	3
April	6.0		11	4	6	3
May	6.7		12	0	14	5
June	6.3		6	10	5	10
July	10.7		23	13	2	10
August	14.8		18	25	13	17
September	9.1		15	7	7	13
October	5.5		5	8	6	0
November	6.4		9	3	12	5
December	8.1		17	20	4	3
Average	7.8	14.6	11.1	9.2	7.1	7.4

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	6	6	5	7	5
February	6.6	6	6	9	7	6
March	7.1	7	7	7	6	8
April	7.8		7	7	7	10
May	6.9		6	8	7	7
June	6.3		6	7	6	6
July	5.7		6	6	5	5
August	5.9		6	6	6	6
September	5.9		5	6	7	6
October	5.4		5	6	5	6
November	5.6		7	5	6	6
December	5.7		6	4	6	6
Average	6.1	6.2	6.0	6.4	6.2	6.6

6th highest wind speed of South Korea

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	303°	286°	290°	290°	309°
February	313°	290°	288°	290°	295°
March	272°	282°	271°	281°	286°
April		261°	288°	289°	287°
May		278°	268°	276°	277°
June		275°	223°	239°	278°
July		216°	212°	162°	124°
August		303°	236°	144°	220°
September		044°	056°	103°	331°
October		309°	301°	284°	303°
November		281°	294°	284°	305°
December		308°	287°	299°	306°

Prevailing wind direction

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