Statistics Zürich Airport 2019-2023

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

Calculated from historical METAR data of Zürich Airport (LSZH) between 2019 and 2023.

VFR conditions (%)

Month	Average	2023	2022	2021	2020	2019
January	54.5	62	57	54	59	54
February	67.1	63	82	72	84	73
March	82.0	80	92	88	85	87
April	88.1	81	85	94	99	76
May	87.7		95	88	86	85
June	92.6		96	92	88	90
July	94.5		98	85	98	96
August	91.4		89	94	93	85
September	88.1		90	88	89	90
October	70.9		71	68	74	70
November	52.2		70	43	38	59
December	46.3		31	45	47	55
Average	78.9	72.7	84.1	79.4	81.6	79.3

11th best VFR conditions of Switzerland

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	81.1	96	88	77	74	84
February	86.7	89	96	88	96	81
March	95.7	97	98	96	99	97
April	96.3	97	94	98	100	92
May	97.8		98	98	98	96
June	98.6		99	98	98	98
July	98.8		99	98	100	99
August	97.8		98	100	99	95
September	95.7		98	95	95	96
October	85.4		88	82	87	82
November	79.3		87	74	67	86
December	73.1		57	78	63	87
Average	92.5	94.9	94.1	91.9	91.8	92.3

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	4.1	6	5	3	6	3
February	7.7	8	9	9	11	9
March	11.4	12	13	11	11	12
April	15.4	13	14	14	19	15
May	18.9		22	16	19	16
June	24.7		26	25	22	26
July	26.2		28	24	26	27
August	25.6		27	22	26	25
September	20.6		19	22	22	20
October	15.6		18	15	13	16
November	8.2		10	6	9	8
December	4.5		1	5	4	6
Average	14.5	9.4	16.5	14.1	15.5	15.1

9th highest temperature of Switzerland

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	-2.4	0	-2	-2	-2	-2
February	-1.1	-1	0	-1	2	-2
March	0.8	3	-1	0	0	1
April	3.8	5	4	2	5	4
May	8.0		10	6	7	6
June	12.8		13	13	12	13
July	14.0		14	14	13	14
August	13.7		14	13	14	13
September	9.9		10	11	11	10
October	6.3		9	4	6	8
November	2.3		4	1	2	3
December	-1.8		-3	1	0	0
Average	5.2	1.7	6.4	5.1	5.8	5.6

6th lowest temperature of Switzerland

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Precipitation (%)

Month	Average	2023	2022	2021	2020	2019
January	20.7	21	13	29	7	31
February	15.5	8	12	16	24	11
March	14.8	17	5	14	14	21
April	12.8	20	18	8	6	17
May	13.6		7	23	14	17
June	7.7		7	9	16	7
July	7.6		5	17	5	5
August	8.6		5	13	12	9
September	9.1		16	8	8	9
October	12.7		11	6	18	22
November	16.7		17	20	7	19
December	22.1		24	27	19	16
Average	13.1	16.7	10.3	15.0	12.1	14.2

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	5.5	6	6	5	5	5
February	5.9	6	7	5	8	4
March	6.1	7	5	6	7	8
April	5.7	6	6	6	5	5
May	5.4		5	7	6	6
June	4.8		5	4	5	5
July	4.7		5	4	5	5
August	4.5		5	5	4	4
September	4.4		5	4	4	5
October	4.4		4	4	5	5
November	4.3		4	4	4	5
December	5.0		4	5	4	6
Average	5.2	6.1	5.1	5.0	5.2	5.1

9th 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	2023	2022	2021	2020	2019
January	235°	254°	233°	237°	237°
February	333°	252°	343°	250°	250°
March	247°	042°	279°	345°	254°
April	313°	337°	010°	005°	346°
May		316°	259°	032°	326°
June		317°	334°	318°	345°
July		325°	289°	281°	318°
August		041°	294°	287°	286°
September		286°	009°	293°	305°
October		238°	305°	247°	260°
November		240°	281°	340°	245°
December		352°	212°	235°	249°

Prevailing wind direction

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