Climate Asahikawa Airport 2020-2024

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

Calculated from historical METAR data of Asahikawa Airport (RJEC) between 2020 and 2024.

VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	60.0	50	43	66	60	73
February	62.9	64	48	69	52	75
March	78.4	69	73	71	87	89
April	88.9		83	92	92	87
May	92.9		92	96	90	94
June	90.5		90	86	100	89
July	88.1		80	83	97	93
August	87.8		80	88	96	96
September	93.0		85	90	97	94
October	88.6		77	86	92	97
November	75.4		61	72	83	78
December	49.7		30	28	71	57
Average	78.8	60.9	70.3	78.7	86.1	86.2

48th best VFR conditions of Japan

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	74.2	71	61	76	75	82
February	77.5	84	70	80	66	83
March	89.3	83	91	79	92	93
April	96.8		97	96	99	92
May	99.5		99	99	100	99
June	98.1		100	96	100	99
July	98.0		97	95	100	99
August	96.2		90	95	99	100
September	98.0		95	98	99	99
October	97.0		97	97	99	100
November	88.6		83	87	94	90
December	66.4		54	48	80	69
Average	89.5	78.8	86.1	88.2	93.0	92.8

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	-5.5	-3	-6	-5	-5	-5
February	-4.8	-2	-3	-3	-3	-3
March	3.0	1	6	3	4	4
April	10.8		12	12	11	9
May	18.2		18	19	16	18
June	21.7		23	21	24	21
July	26.5		27	26	30	25
August	25.4		29	25	26	26
September	21.7		24	23	21	22
October	13.9		15	14	14	14
November	6.2		7	7	7	7
December	-3.8		-2	-3	-1	-3
Average	9.9	-2.4	12.5	12.1	12.1	11.2

73rd highest temperature of Japan

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	-13.9	-11	-13	-13	-13	-12
February	-12.9	-12	-12	-11	-10	-12
March	-5.8	-8	-1	-3	-4	-3
April	3.3		5	4	3	2
May	10.0		10	10	10	10
June	14.3		16	14	16	15
July	19.4		20	19	21	18
August	18.2		21	18	18	19
September	13.3		15	13	12	15
October	5.9		7	6	6	7
November	-1.8		1	1	1	0
December	-8.0		-8	-9	-7	-8
Average	2.4	-11.7	5.0	4.7	4.4	4.3

2nd lowest temperature of Japan

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Precipitation (%)

Month	Average	2024	2023	2022	2021	2020
January	57.3	62	66	53	60	52
February	53.7	50	64	57	65	35
March	31.7	39	24	40	26	23
April	19.8		31	14	16	26
May	16.6		9	18	23	16
June	16.4		13	23	6	23
July	13.7		18	13	7	12
August	18.0		23	21	14	13
September	13.8		16	14	10	13
October	20.7		25	22	17	21
November	43.1		51	46	35	44
December	66.8		74	81	52	65
Average	31.6	49.7	34.0	31.5	25.4	26.6

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	6.2	6	6	5	7	5
February	6.5	7	7	6	7	6
March	7.7	8	8	7	8	8
April	9.4		10	10	11	9
May	8.3		8	9	9	8
June	7.2		8	7	7	7
July	6.1		6	6	7	5
August	6.8		7	7	7	7
September	6.7		6	6	7	8
October	6.8		7	7	7	7
November	7.8		8	8	8	7
December	7.1		7	9	7	6
Average	7.2	7.2	7.2	7.3	7.6	6.9

73rd highest wind speed of Japan

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	215°	235°	287°	210°	286°
February	274°	228°	274°	235°	261°
March	272°	215°	226°	248°	253°
April		265°	241°	274°	252°
May		271°	230°	249°	267°
June		240°	248°	236°	239°
July		248°	218°	222°	294°
August		195°	194°	235°	212°
September		221°	225°	251°	189°
October		228°	222°	225°	217°
November		214°	211°	197°	202°
December		211°	209°	211°	216°

Prevailing wind direction

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