Climate Aérodrome de Pontoise - Cormeilles en Vexin 2021-2024

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

Calculated from historical METAR data of Aérodrome de Pontoise - Cormeilles en Vexin (LFPT) between 2021 and 2024.

VFR conditions (%)

Month	Average	2024	2023	2022	2021
January	42.6	61	35	41
February	47.7	33	60	61
March	71.8	68	79	77
April	77.6		70	81
May	82.8		79	88
June	90.1		92	88
July	86.7		84	92
August	84.8		83	92	100
September	85.3		88	90
October	76.1		76	82
November	62.6		58	64
December	40.7		44	36
Average	70.0	55.0	73.8	78.6	100.0

59th best VFR conditions of France

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
January	76.3	87	85	69
February	81.1	79	82	90
March	92.9	91	97	92
April	92.9		92	93
May	93.2		90	97
June	98.2		98	97
July	96.8		97	98
August	95.7		96	98	100
September	95.9		96	97
October	91.4		93	93
November	84.4		85	81
December	72.2		85	62
Average	91.7	86.0	92.2	91.5	100.0

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
January	6.7	7	8	7
February	10.5	12	10	11
March	13.6	14	13	14
April	14.8		14	16
May	20.2		20	21
June	25.1		27	24
July	26.0		25	28
August	25.4		24	28	21
September	21.8		25	21
October	18.6		19	19
November	11.6		12	12
December	7.4		10	4
Average	15.3	10.5	17.1	17.5	21.0

80th highest temperature of France

Average highest temperature per day

The maximum temperature is typically observed some hours after noon.

Minimum temperatures (°C)

Month	Average	2024	2023	2022	2021
January	1.2	1	3	1
February	3.3	6	1	3
March	4.5	5	5	4
April	3.6		4	4
May	8.6		8	9
June	11.8		13	11
July	12.7		13	12
August	13.2		13	14	21
September	10.9		13	10
October	9.2		9	10
November	5.0		6	6
December	2.7		5	-1
Average	8.5	3.8	7.8	7.1	21.0

11th lowest temperature of France

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Precipitation (%)

Month	Average	2024	2023	2022	2021
January	6.9	7	11	5
February	7.4	16	3	6
March	8.4	14	6	7
April	5.8		6	7
May	4.1		3	1
June	3.3		2	6
July	3.4		6	1
August	3.9		7	1	0
September	4.3		4	2
October	6.5		11	5
November	9.9		14	11
December	7.7		9	4
Average	6.0	12.3	6.2	4.3

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
January	7.7	8	10	6
February	8.9	10	8	10
March	8.6	8	11	7
April	7.6		8	9
May	7.3		9	6
June	6.3		7	6
July	7.4		8	7
August	6.6		7	7	13
September	6.4		6	7
October	7.0		7	7
November	8.5		10	8
December	8.3		9	6
Average	9.3	8.8	8.1	7.1	13.0

80th highest wind speed of France

Average wind speed

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

Prevailing wind direction

Month	2024	2023	2022	2021
January	261°	244°	255°
February	225°	008°	243°
March	206°	241°	089°
April		357°	026°
May		022°	333°
June		033°	289°
July		255°	349°
August		273°	033°	009°
September		203°	270°
October		222°	206°
November		241°	213°
December		240°	069°

Prevailing wind direction

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