Climate Mikkeli Airport 2020-2024

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

Calculated from historical METAR data of Mikkeli Airport (EFMI) between 2020 and 2024.

VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	29.8	45	27	34	10	39
February	37.5	35	46	23	37	27
March	56.5	43	52	76	56	62
April	73.2	51	92	78	66	75
May	85.4		90	90	61	91
June	88.5		93	84	94	89
July	82.9		82	85	95	79
August	77.3		77	86	65	83
September	58.0		53	65	69	66
October	34.8		43	32	31	36
November	15.8		12	6	16	32
December	21.1		30	18	40	0
Average	62.8	44.3	67.6	67.6	63.7	70.3

16th best VFR conditions of Finland

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	51.7	61	44	58	26	68
February	57.9	50	64	47	59	63
March	77.0	67	75	95	75	79
April	86.7	79	95	88	84	89
May	93.7		96	97	79	94
June	94.8		98	93	96	94
July	93.5		92	95	99	91
August	91.5		93	95	91	93
September	79.0		79	86	89	85
October	62.9		77	58	63	63
November	45.2		41	36	51	66
December	47.3		55	47	62	0
Average	79.2	66.3	82.6	82.6	81.1	85.1

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	-3.2	-8	-1	-3	-1	2
February	-3.1	-4	-2	-2	-7	1
March	1.5	3	0	4	1	4
April	7.2	6	10	6	8	6
May	14.7		16	14	13	14
June	17.1		21	20	24	1
July	18.5		20	22	25	0
August	18.8		21	23	18	12
September	13.0		18	12	11	15
October	6.6		5	9	9	7
November	1.9		-1	2	2	5
December	-3.0		-6	-4	-7	-3
Average	6.9	-1.2	8.3	9.0	8.4	6.3

11th highest temperature of Finland

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	-9.5	-16	-6	-10	-4	-3
February	-10.0	-11	-9	-8	-14	-3
March	-8.7	-4	-9	-9	-7	-4
April	-3.2	-3	-3	-4	-2	-2
May	2.2		2	2	5	0
June	6.2		6	6	12	0
July	8.2		11	5	12	0
August	8.5		10	8	10	4
September	5.1		8	4	3	6
October	1.2		-1	3	4	3
November	-2.3		-5	-1	-2	1
December	-8.9		-10	-9	-13	-3
Average	-2.8	-9.6	-1.4	-1.2	0.4	0.4

9th lowest temperature of Finland

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Precipitation (%)

Month	Average	2024	2023	2022	2021	2020
January	39.7	35	33	46	46	20
February	39.6	37	36	44	61	35
March	23.1	20	32	13	22	18
April	13.7	21	5	14	17	16
May	9.5		11	9	20	8
June	8.7		7	12	3	8
July	9.2		14	8	2	15
August	7.8		8	4	16	5
September	11.3		10	13	10	13
October	16.9		24	14	23	18
November	25.6		54	18	29	12
December	47.4		65	54	51	0
Average	17.3	26.1	18.7	15.3	18.5	12.9

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	5.6	5	7	6	4	7
February	5.7	7	6	7	5	6
March	5.9	5	7	7	4	7
April	5.7	7	6	6	6	6
May	5.6		7	7	6	6
June	5.3		5	6	5	5
July	4.4		5	5	5	3
August	4.9		6	6	6	3
September	5.3		6	4	6	6
October	5.4		6	6	8	4
November	5.1		5	6	6	6
December	5.1		5	5	5	3
Average	5.4	6.1	5.8	5.8	5.5	5.0

11th highest wind speed of Finland

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	229°	192°	256°	110°	237°
February	177°	244°	191°	296°	216°
March	187°	248°	262°	229°	229°
April	219°	073°	217°	184°	270°
May		246°	243°	250°	264°
June		272°	223°	207°	108°
July		233°	224°	241°	219°
August		138°	172°	158°	224°
September		204°	064°	307°	215°
October		276°	221°	197°	123°
November		069°	112°	244°	182°
December		074°	107°	258°	111°

Prevailing wind direction

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