Climate Nancy-Ochey (BA 133) Air Base 2020-2024

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

Calculated from historical METAR data of Nancy-Ochey (BA 133) Air Base (LFSO) between 2020 and 2024.

VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	32.8	36	27	30	34	42
February	54.4	39	53	54	68	61
March	70.1	71	70	87	74	73
April	82.0		67	74	89	95
May	84.1		83	92	77	93
June	88.3		94	92	75	86
July	88.7		86	98	78	91
August	88.5		83	94	77	94
September	82.8		92	81	83	79
October	64.8		70	70	69	58
November	42.7		43	46	26	62
December	28.0		27	22	27	35
Average	69.4	50.5	70.8	76.3	68.4	76.4

79th 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	2020
January	68.9	76	77	60	60	70
February	83.7	80	84	87	86	91
March	90.9	95	93	95	93	93
April	94.5		92	88	96	99
May	94.2		93	99	97	98
June	95.4		99	98	87	95
July	96.5		98	99	88	99
August	96.1		91	99	93	100
September	94.3		98	95	93	94
October	85.7		93	83	85	89
November	72.5		87	74	60	83
December	66.1		70	46	59	67
Average	88.3	84.6	91.1	89.3	85.4	91.7

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	4.9	6	6	5	4	7
February	8.4	10	8	9	9	10
March	11.7	13	11	14	11	11
April	15.2		13	14	13	20
May	19.3		20	22	16	19
June	24.8		27	25	24	22
July	26.0		25	28	23	26
August	25.3		24	28	22	28
September	21.5		25	20	22	23
October	16.5		19	19	16	14
November	9.2		9	11	7	12
December	6.2		8	2	6	7
Average	15.0	9.3	16.3	16.7	14.4	16.4

93rd 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	2020
January	0.2	-1	2	0	0	1
February	1.9	5	1	3	2	4
March	3.1	5	4	3	2	3
April	4.7		5	5	2	7
May	8.4		9	10	7	8
June	13.2		13	14	14	12
July	14.4		15	14	14	13
August	14.6		15	15	13	16
September	10.8		13	10	11	12
October	8.4		9	10	6	8
November	3.6		5	6	2	4
December	2.0		3	-2	2	3
Average	6.6	3.1	7.9	7.4	6.2	7.5

20th 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	2020
January	25.7	23	33	18	37	20
February	21.8	24	10	35	17	33
March	22.5	21	24	14	21	21
April	15.3		25	19	16	3
May	13.2		11	11	26	5
June	10.4		5	14	18	11
July	8.5		11	1	17	6
August	9.0		20	3	11	8
September	12.3		4	14	17	15
October	20.2		27	14	14	29
November	26.1		45	27	21	10
December	26.7		31	18	27	28
Average	17.0	22.5	18.6	14.1	19.4	14.1

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	9.0	10	11	8	9	9
February	9.9	10	8	13	10	14
March	9.5	9	12	8	9	11
April	8.0		9	9	8	8
May	7.5		8	7	11	8
June	6.6		6	7	6	7
July	7.2		9	7	7	7
August	6.9		8	7	7	7
September	6.9		7	7	6	7
October	8.7		9	8	8	11
November	8.4		12	8	7	7
December	9.3		11	6	9	9
Average	8.2	9.5	8.9	7.9	8.0	8.5

93rd 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	2020
January	224°	220°	244°	224°	206°
February	214°	300°	227°	167°	226°
March	219°	229°	084°	248°	174°
April		252°	027°	004°	109°
May		022°	271°	225°	031°
June		027°	247°	249°	252°
July		241°	317°	249°	274°
August		251°	025°	265°	241°
September		194°	229°	161°	231°
October		214°	197°	200°	210°
November		222°	203°	230°	186°
December		224°	053°	211°	200°

Prevailing wind direction

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