Statistics Ursel Air Base 2019-2023

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

Calculated from historical METAR data of Vlissingen (EHFS) between 2019 and 2023.

VFR conditions (%)

Month	Average	2023	2022	2021	2020	2019
January	44.8	52	35	52	39	47
February	56.5	44	64	64	45	64
March	62.8	50	87	58	71	56
April	75.0	66	82	73	88	79
May	78.5	76	85	77	94	75
June	79.5	89	86	67	80	86
July	79.5	80	88	68	70	80
August	80.9	76	91	76	76	84
September	77.0	69	86	80	74	77
October	70.8	74	83	64	72	66
November	58.3		63	49	56	61
December	47.0		50	41	47	59
Average	70.7	69.7	79.0	66.0	70.8	71.8

7th best VFR conditions of Netherlands

VFR conditions during daylight period

Percentage of observations where the VFR minimums for ceiling and visibility are met:

• Visibility: 8 km or more
• Ceiling: 3,000 ft or more

Only observations between sunrise and sunset are taken into account.

Marginal VFR conditions (%)

Month	Average	2023	2022	2021	2020	2019
January	78.2	88	75	88	67	85
February	82.5	84	90	82	88	82
March	87.8	85	96	86	92	86
April	92.5	90	97	96	97	90
May	92.7	88	97	98	100	90
June	93.4	99	98	86	97	97
July	94.1	92	99	90	90	97
August	95.9	95	99	95	93	98
September	93.6	92	98	93	92	96
October	91.7	92	94	88	96	87
November	83.5		82	85	79	87
December	78.0		80	67	82	88
Average	90.2	90.9	93.9	89.0	90.7	91.1

Marginal VFR conditions or better during daylight period

Percentage of observations where the MVFR minimums for ceiling and visibility are met:

• Visibility: 5 km or more
• Ceiling: 1,000 ft or more

Only observations between sunrise and sunset are taken into account.

Maximum temperatures (°C)

Month	Average	2023	2022	2021	2020	2019
January	6.8	8	7	6	8	6
February	7.8	8	9	7	10	10
March	9.9	10	12	9	10	11
April	13.1	12	13	10	16	15
May	16.9	16	18	14	18	15
June	21.3	24	21	21	21	21
July	22.0	21	23	21	20	22
August	22.3	21	25	20	24	23
September	19.6	22	20	21	20	19
October	15.7	17	17	15	14	15
November	10.7		12	10	12	10
December	7.7		5	8	8	9
Average	14.7	15.9	15.4	13.4	15.0	14.5

11th highest temperature of Netherlands

Average highest temperature per day

The maximum temperature is typically observed some hours after noon.

Minimum temperatures (°C)

Month	Average	2023	2022	2021	2020	2019
January	3.6	5	4	3	5	3
February	3.7	5	5	2	5	5
March	5.1	5	6	5	5	6
April	7.1	7	7	4	8	8
May	10.4	10	11	9	10	10
June	14.6	16	14	15	14	14
July	15.9	16	16	16	15	16
August	16.3	16	18	15	18	16
September	14.1	16	14	15	14	14
October	11.5	13	13	11	11	11
November	7.2		8	7	8	7
December	4.5		2	5	5	5
Average	9.7	10.7	10.0	8.8	9.8	9.5

18th lowest temperature of Netherlands

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Precipitation (%)

Month	Average	2023	2022	2021	2020	2019
January	10.4	14	8	12	6	13
February	10.4	2	13	10	19	11
March	10.5	20	3	9	9	9
April	5.2	8	4	6	5	3
May	5.1	5	4	9	2	7
June	4.8	2	7	9	6	7
July	5.2	7	2	6	8	4
August	5.8	8	2	7	7	4
September	8.5	6	15	2	9	11
October	10.9	14	5	14	18	12
November	12.6		17	14	8	17
December	13.4		11	15	19	10
Average	7.8	8.2	6.6	8.8	8.8	8.1

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	2023	2022	2021	2020	2019
January	13.5	16	11	13	15	13
February	15.4	13	20	14	22	12
March	13.7	15	10	13	15	16
April	11.1	12	13	11	10	11
May	10.7	11	10	13	12	10
June	10.7	10	10	9	11	11
July	11.1	15	10	10	12	10
August	11.0	12	9	12	11	12
September	10.9	10	10	10	11	13
October	13.8	14	12	14	16	14
November	12.9		15	11	14	12
December	13.8		9	13	14	15
Average	12.0	12.4	11.3	11.5	13.1	12.1

11th highest wind speed of Netherlands

Average wind speed

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

Prevailing wind direction

Month	2023	2022	2021	2020	2019
January	218°	233°	232°	224°	276°
February	251°	223°	150°	229°	224°
March	220°	083°	259°	249°	262°
April	346°	001°	349°	047°	088°
May	356°	272°	242°	337°	322°
June	359°	265°	333°	257°	247°
July	236°	282°	262°	256°	296°
August	250°	348°	272°	240°	250°
September	172°	255°	210°	265°	246°
October	203°	199°	201°	203°	217°
November		181°	234°	198°	196°
December		120°	201°	191°	224°

Prevailing wind direction

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