Climate Arçman Heliport 2020-2024

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

Calculated from historical METAR data of Bojnord Airport (OIMN) between 2020 and 2024.

VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	78.9	77	87	89	94	85
February	74.8	81	69	80	92	76
March	78.6	79	90	84	79	84
April	85.0		92	85	93	84
May	91.5		88	92	92	94
June	94.6		92	95	99	96
July	95.6		90	95	94	98
August	97.0		89	100	100	99
September	94.4		90	96	97	98
October	90.7		92	91	95	97
November	79.9		93	89	85	78
December	70.9		75	68	92	55
Average	86.2	79.0	87.9	90.0	92.8	88.5

13th best VFR conditions of Iran

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	92.4	92	95	92	96	96
February	89.0	90	88	87	98	91
March	94.7	93	97	97	94	97
April	98.0		100	99	99	98
May	98.9		99	98	99	100
June	99.2		98	99	100	100
July	99.2		98	97	100	100
August	99.3		97	100	100	100
September	99.0		98	100	99	100
October	97.6		95	98	100	100
November	94.6		96	97	95	95
December	88.8		92	88	98	81
Average	95.9	91.9	96.4	96.7	98.2	96.9

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	8.1	11	5	9	10	6
February	9.6	9	9	11	13	10
March	14.9	15	20	12	14	14
April	20.3		23	22	25	18
May	25.5		26	22	27	25
June	31.6		31	32	33	32
July	33.9		34	33	34	33
August	31.7		32	32	33	30
September	28.5		27	31	31	27
October	21.4		22	23	20	20
November	14.5		18	15	14	13
December	9.7		12	8	12	5
Average	19.7	11.3	21.6	21.2	22.0	19.3

64th highest temperature of Iran

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	-4.1	0	-7	-4	-6	-5
February	-2.0	-2	-2	-1	-2	-2
March	2.4	2	5	2	0	2
April	6.9		6	8	9	6
May	11.4		12	10	13	10
June	16.5		17	17	16	15
July	18.6		19	18	20	18
August	15.9		17	14	16	17
September	12.5		12	13	15	11
October	6.0		7	9	4	4
November	1.0		5	1	-1	1
December	-3.8		0	-2	-3	-6
Average	6.1	-1.7	7.6	7.4	6.7	6.0

7th lowest temperature of Iran

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Precipitation (%)

Month	Average	2024	2023	2022	2021	2020
January	8.1	5	4	13	4	7
February	12.1	16	16	13	5	13
March	7.6	8	4	6	8	8
April	6.0		3	2	3	12
May	3.4		4	5	7	0
June	0.5		1	0	0	0
July	0.6		1	1	1	1
August	0.2		1	0	0	0
September	0.2		0	0	1	0
October	2.7		3	2	4	0
November	4.0		1	4	2	6
December	7.1		8	9	4	13
Average	4.6	9.3	3.3	3.8	3.1	4.4

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	4.3	5	5	5	4	5
February	4.9	6	5	5	4	6
March	5.9	6	6	7	6	6
April	5.9		7	7	6	6
May	5.9		6	8	6	6
June	6.6		8	8	6	7
July	7.1		8	8	7	7
August	6.2		7	6	6	7
September	5.5		6	6	6	5
October	4.6		5	5	5	4
November	3.8		5	4	4	4
December	3.7		5	4	5	3
Average	5.5	5.7	6.3	6.1	5.5	5.6

64th highest wind speed of Iran

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	264°	241°	268°	243°	280°
February	286°	282°	285°	281°	208°
March	292°	265°	287°	288°	284°
April		294°	286°	321°	298°
May		306°	295°	328°	315°
June		296°	302°	334°	325°
July		313°	323°	323°	329°
August		334°	005°	006°	310°
September		305°	315°	292°	314°
October		305°	301°	301°	309°
November		250°	287°	298°	321°
December		250°	287°	252°	313°

Prevailing wind direction

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