Climate Donegal Airport 2020-2024

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

Calculated from historical METAR data of City of Derry Airport (EGAE) between 2020 and 2024.

VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	67.2	75	70	67	78	63
February	70.8	62	55	70	81	72
March	71.2	60	81	88	48	83
April	77.5		83	83	82	96
May	80.0		72	82	84	92
June	77.4		85	80	72	69
July	66.5		76	64	63	62
August	71.4		71	82	65	70
September	74.4		83	82	56	74
October	72.4		69	78	72	73
November	74.1		77	86	63	67
December	67.8		55	93	59	76
Average	71.9	64.9	74.4	78.9	67.8	72.7

42nd best VFR conditions of United Kingdom

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	97.2	99	97	100	94	99
February	98.2	98	100	99	99	98
March	97.8	97	99	98	94	100
April	97.7		98	96	100	97
May	97.4		97	99	96	100
June	97.0		99	98	97	91
July	95.1		97	94	91	96
August	96.1		99	96	91	92
September	97.3		99	100	92	98
October	97.4		96	100	98	97
November	97.4		99	98	99	95
December	95.5		93	100	91	98
Average	97.0	98.0	97.7	97.8	94.6	96.6

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	8.1	8	9	9	6	9
February	9.1	10	11	9	8	8
March	10.4	11	11	12	11	9
April	12.8		14	13	12	13
May	15.9		17	16	14	16
June	18.2		22	18	18	17
July	19.0		18	19	21	17
August	18.8		19	20	19	18
September	17.1		19	17	18	17
October	13.8		15	14	15	13
November	10.5		10	12	11	11
December	8.6		10	7	9	8
Average	13.1	9.4	14.3	14.1	13.5	13.0

66th highest temperature of United Kingdom

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	5.0	4	5	6	4	6
February	5.4	6	7	5	6	4
March	5.5	6	6	5	8	5
April	7.5		8	7	5	11
May	10.3		10	11	9	14
June	13.1		14	12	13	15
July	13.8		14	14	15	13
August	13.6		14	14	14	14
September	11.7		13	12	13	11
October	9.5		10	10	11	9
November	6.8		6	8	8	8
December	5.3		7	2	6	5
Average	8.5	5.1	9.2	9.1	9.2	9.5

74th lowest temperature of United Kingdom

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Precipitation (%)

Month	Average	2024	2023	2022	2021	2020
January	16.8	13	20	16	18	19
February	18.4	21	11	28	18	28
March	16.4	19	19	8	14	19
April	11.8		8	18	10	8
May	11.6		4	15	14	10
June	10.9		6	14	9	19
July	13.7		23	11	6	21
August	13.0		13	7	12	18
September	14.4		17	11	12	10
October	15.8		15	20	13	20
November	17.1		17	11	24	18
December	19.0		28	7	21	21
Average	14.9	17.9	14.2	13.5	12.9	18.0

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	2024	2023	2022	2021	2020
January	11.3	11	11	11	8	16
February	13.5	12	12	17	13	18
March	11.8	12	10	10	12	14
April	10.9		10	11	9	11
May	10.0		9	12	10	13
June	9.8		8	11	10	11
July	9.0		10	9	7	10
August	9.6		10	9	8	10
September	9.9		9	9	9	11
October	11.2		10	12	11	11
November	10.1		8	11	11	11
December	10.6		12	7	10	12
Average	10.6	11.4	9.7	10.7	9.4	12.0

66th highest wind speed of United Kingdom

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	220°	226°	237°	230°	226°
February	234°	221°	253°	186°	242°
March	133°	193°	174°	236°	238°
April		143°	186°	331°	057°
May		276°	250°	339°	287°
June		121°	229°	256°	347°
July		239°	270°	341°	269°
August		239°	258°	266°	055°
September		209°	303°	229°	248°
October		171°	206°	231°	252°
November		244°	195°	257°	220°
December		230°	194°	228°	247°

Prevailing wind direction

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