Statistics Cologne Bonn Airport 2019-2023

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

Calculated from historical METAR data of Cologne Bonn Airport (EDDK) between 2019 and 2023.

VFR conditions (%)

Month	Average	2023	2022	2021	2020	2019
January	52.0	45	36	52	58	43
February	74.8	57	68	84	76	82
March	81.7	75	95	83	87	77
April	88.0	77	88	82	95	90
May	90.4	86	92	93	98	82
June	91.6	96	92	86	93	97
July	89.5	91	90	83	89	90
August	89.9	83	90	84	96	97
September	88.9		86	94	91	89
October	80.7		88	79	86	78
November	69.5		78	53	80	70
December	56.9		44	57	65	65
Average	82.4	79.5	82.8	79.9	86.9	82.3

15th best VFR conditions of Germany

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	84.4	91	80	84	84	73
February	96.4	91	97	98	98	95
March	95.5	95	100	93	98	95
April	97.3	95	98	95	99	98
May	96.9	96	98	98	100	91
June	97.6	99	98	97	98	99
July	97.5	99	99	96	97	96
August	96.4	93	96	95	98	100
September	96.5		95	98	97	99
October	96.2		98	94	99	94
November	91.0		95	84	95	93
December	87.3		80	93	91	94
Average	95.3	95.3	95.6	94.3	96.6	94.5

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	6.0	7	6	5	8	5
February	8.8	9	10	9	10	12
March	12.0	11	14	12	12	12
April	15.7	14	15	12	19	17
May	19.9	20	22	17	20	17
June	25.0	27	25	25	23	27
July	25.2	25	26	23	24	26
August	25.1	24	28	22	27	26
September	20.7		20	22	22	20
October	16.2		18	16	15	15
November	10.3		12	9	12	9
December	6.9		3	8	7	8
Average	16.2	17.1	17.0	14.9	16.5	16.1

7th highest temperature of Germany

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	1.2	3	2	1	3	0
February	1.5	2	3	1	3	2
March	2.7	4	2	2	3	4
April	4.2	5	5	1	5	5
May	8.0	8	9	7	6	7
June	13.0	13	12	14	12	14
July	13.5	14	13	14	12	13
August	13.8	14	14	13	16	14
September	9.9		11	11	10	10
October	8.4		10	7	9	9
November	4.1		6	3	5	3
December	2.3		-2	3	4	3
Average	7.0	7.8	7.2	6.3	7.2	6.9

38th lowest temperature of Germany

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Precipitation (%)

Month	Average	2023	2022	2021	2020	2019
January	25.9	26	24	35	15	43
February	17.7	13	28	15	30	8
March	17.8	30	6	14	15	25
April	13.3	17	14	20	3	13
May	13.2	11	9	26	6	19
June	9.6	7	13	9	14	4
July	12.0	19	6	17	14	7
August	12.6	18	3	21	10	11
September	13.7		21	7	9	12
October	15.6		10	14	24	23
November	16.5		9	23	7	22
December	25.8		15	19	33	26
Average	15.1	16.8	12.2	17.7	13.8	16.0

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	8.2	9	8	7	8	9
February	9.4	9	12	8	13	7
March	8.8	9	7	8	9	11
April	7.6	8	8	7	7	7
May	6.8	6	7	9	7	7
June	6.4	6	6	6	6	7
July	6.5	8	7	6	7	6
August	6.2	7	6	6	7	6
September	6.1		7	5	6	7
October	7.7		7	8	8	8
November	7.0		8	6	7	7
December	7.6		5	7	8	8
Average	7.2	7.6	7.0	7.0	7.5	7.3

7th highest wind speed of Germany

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	222°	258°	231°	191°	273°
February	277°	237°	133°	230°	188°
March	227°	114°	261°	218°	251°
April	342°	294°	309°	094°	108°
May	005°	273°	230°	337°	318°
June	023°	263°	283°	238°	193°
July	242°	314°	237°	272°	303°
August	254°	345°	279°	219°	230°
September		237°	185°	184°	240°
October		165°	181°	195°	180°
November		171°	221°	166°	160°
December		125°	178°	159°	180°

Prevailing wind direction

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