Statistics Drachten Airfield 2019-2023

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

Calculated from historical METAR data of Leeuwarden Air Base (EHLW) between 2019 and 2023.

VFR conditions (%)

Month	Average	2023	2022	2021	2020	2019
January	39.4	33	37	54	30	42
February	50.1	38	48	55	52	56
March	56.3	47	67	44	69	50
April	68.3	53	64	73	86	82
May	68.8	57	68	57	84	68
June	68.8	70	72	60	74	74
July	68.8	59	69	59	68	72
August	73.1	60	79	60	83	79
September	71.0	68	78	61	70	70
October	59.0	41	64	63	62	70
November	49.6	50	41	46	57	54
December	40.4		36	32	32	62
Average	63.1	53.2	62.8	56.7	67.6	66.9

26th 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	72.9	74	76	83	58	71
February	79.6	73	85	74	88	73
March	84.5	75	84	88	96	87
April	90.8	81	91	98	97	93
May	91.6	86	91	93	98	87
June	90.6	91	95	79	90	94
July	91.7	88	92	86	89	96
August	94.8	93	96	94	98	94
September	90.5	93	93	94	85	83
October	85.0	78	84	85	88	89
November	75.5	82	70	69	77	76
December	65.4		67	54	63	84
Average	86.8	83.9	86.9	84.9	87.8	87.3

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	6.2	7	7	5	8	5
February	7.1	8	9	6	8	9
March	9.4	9	11	9	9	10
April	12.6	12	12	10	14	15
May	16.4	16	17	14	16	15
June	20.4	22	20	21	21	21
July	21.3	21	21	22	19	22
August	21.8	21	24	20	24	22
September	18.9	22	19	20	19	18
October	14.8	15	16	15	14	14
November	9.8	10	11	10	11	9
December	6.7		4	7	7	8
Average	13.9	14.8	14.5	13.0	14.2	13.9

13th 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	1.9	3	3	0	4	1
February	1.6	2	3	0	4	3
March	2.5	3	2	2	3	4
April	4.1	4	4	2	4	5
May	7.7	8	8	7	6	7
June	11.9	12	11	12	13	12
July	13.4	14	13	15	12	14
August	13.8	13	14	14	15	14
September	11.2	13	11	12	11	11
October	9.2	10	10	9	9	8
November	4.8	5	5	6	5	4
December	2.5		-1	2	3	4
Average	7.2	7.9	7.2	6.7	7.3	7.2

9th 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	18.0	25	13	17	20	18
February	19.1	12	35	15	32	10
March	15.9	28	13	11	7	25
April	10.5	16	17	12	4	3
May	8.9	10	15	18	3	6
June	10.2	8	17	6	12	9
July	12.8	27	12	8	16	7
August	11.3	15	8	14	11	13
September	15.5	16	29	6	9	13
October	19.8	32	15	17	19	16
November	24.6	50	22	13	10	16
December	20.4		22	19	23	11
Average	13.9	21.0	17.4	12.2	12.6	11.4

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	2023	2022	2021	2020	2019
January	11.5	13	12	10	12	12
February	12.4	11	17	10	16	10
March	11.8	13	9	12	13	14
April	10.8	11	13	11	10	10
May	9.5	9	10	10	10	10
June	8.9	9	9	8	9	9
July	9.2	11	9	8	9	9
August	8.8	9	8	10	9	9
September	8.5	8	8	8	8	10
October	10.5	11	10	10	11	10
November	9.9	12	10	9	10	9
December	9.7		8	10	9	10
Average	9.9	10.5	10.0	9.5	10.3	10.0

13th 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	231°	262°	234°	224°	287°
February	270°	243°	137°	233°	218°
March	237°	079°	264°	221°	260°
April	007°	303°	348°	036°	079°
May	013°	272°	261°	328°	312°
June	352°	270°	347°	274°	236°
July	244°	286°	295°	257°	285°
August	264°	347°	291°	240°	229°
September	200°	288°	237°	228°	249°
October	223°	210°	211°	200°	199°
November	215°	184°	238°	206°	168°
December		160°	210°	179°	210°

Prevailing wind direction

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