Climate Dübendorf Air Base 2020-2024

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

Calculated from historical METAR data of Dübendorf Air Base (LSMD) between 2020 and 2024.

VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	55.1	65	59	58	46	62
February	71.4	81	68	84	76	88
March	79.8	70	79	94	85	81
April	86.2		79	82	93	96
May	84.0		77	92	86	85
June	89.5		93	89	88	84
July	94.9		96	98	90	96
August	90.3		94	87	89	93
September	83.6		93	88	86	86
October	75.5		88	77	70	75
November	54.8		69	70	42	47
December	49.3		57	26	52	48
Average	78.3	72.3	81.5	83.0	78.6	81.0

13th best VFR conditions of Switzerland

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	82.7	87	98	87	78	76
February	89.9	94	92	98	92	97
March	95.7	92	97	99	96	99
April	96.1		96	96	98	100
May	97.8		99	99	97	98
June	96.6		95	96	96	98
July	98.8		100	100	98	99
August	98.0		99	97	99	99
September	93.2		97	98	98	95
October	89.4		95	93	85	89
November	80.7		95	87	73	70
December	76.6		77	66	81	71
Average	92.5	91.2	95.5	94.8	92.4	92.6

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	4.5	6	6	5	3	6
February	8.3	11	8	9	9	11
March	11.6	13	12	13	11	11
April	15.2		13	14	14	19
May	19.1		19	22	16	19
June	25.1		27	26	25	22
July	25.9		26	27	23	26
August	25.2		26	27	22	25
September	20.4		25	19	22	22
October	16.4		18	18	15	14
November	8.6		9	11	6	10
December	5.1		7	2	6	4
Average	14.8	9.7	16.1	16.5	14.3	15.7

8th highest temperature of Switzerland

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	-2.5	-1	0	-2	-3	-2
February	-1.9	3	-1	0	-1	2
March	1.3	3	2	0	0	1
April	4.1		4	5	2	5
May	8.5		9	11	5	7
June	13.5		13	14	14	12
July	14.8		15	14	14	14
August	13.5		15	15	6	15
September	10.6		13	11	12	12
October	7.0		8	9	5	7
November	2.6		3	4	2	3
December	0.1		1	-2	0	0
Average	5.7	1.9	7.0	6.7	4.6	6.2

9th lowest temperature of Switzerland

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Precipitation (%)

Month	Average	2024	2023	2022	2021	2020
January	19.1	24	20	8	30	5
February	13.9	12	7	12	17	20
March	14.3	19	19	5	9	11
April	13.4		22	19	7	6
May	12.7		13	6	22	11
June	7.2		2	10	9	15
July	8.4		11	5	14	5
August	11.1		17	6	12	15
September	8.0		3	16	6	7
October	11.2		12	11	7	20
November	17.0		36	13	17	6
December	21.9		30	24	21	18
Average	13.1	18.1	15.0	10.1	13.4	11.3

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	2020
January	4.0	4	4	4	4	3
February	4.3	3	4	6	4	6
March	4.8	5	5	4	4	6
April	4.5		5	5	5	4
May	4.2		4	4	6	4
June	3.8		4	4	3	4
July	3.7		4	4	3	4
August	3.5		4	4	3	3
September	3.2		3	4	3	3
October	3.2		3	3	3	4
November	3.3		5	3	4	2
December	3.6		4	2	4	3
Average	3.9	4.1	3.9	3.9	3.8	4.0

8th highest wind speed of Switzerland

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	298°	282°	272°	226°	264°
February	287°	355°	261°	062°	258°
March	296°	282°	042°	287°	031°
April		342°	360°	027°	022°
May		085°	327°	268°	039°
June		047°	328°	348°	009°
July		296°	347°	315°	290°
August		294°	048°	306°	293°
September		106°	288°	018°	341°
October		300°	266°	315°	258°
November		288°	288°	339°	002°
December		284°	356°	182°	245°

Prevailing wind direction

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