Climate Decimomannu Air Base 2020-2024

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

Calculated from historical METAR data of Decimomannu Air Base (LIED) between 2020 and 2024.

VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	90.6	92	84	97	92	87
February	88.5	82	82	94	83	97
March	92.0	84	93	93	97	93
April	92.0		93	94	90	92
May	93.0		88	94	98	95
June	98.0		93	100	99	99
July	99.3		99	100	100	100
August	98.7		99	99	98	100
September	98.6		100	99	99	96
October	95.7		95	94	96	97
November	90.6		93	90	83	90
December	88.3		87	81	84	95
Average	93.3	85.8	92.5	95.2	93.9	95.1

25th best VFR conditions of Italy

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	98.2	100	96	100	100	96
February	96.7	92	95	98	94	99
March	98.1	97	98	100	98	97
April	98.3		98	98	98	98
May	98.5		99	98	100	100
June	99.4		98	100	100	100
July	99.8		99	100	100	100
August	99.6		99	100	100	100
September	99.6		100	99	100	99
October	98.4		98	96	97	99
November	98.1		99	98	96	98
December	97.2		97	95	95	98
Average	98.3	96.2	98.2	98.7	98.2	98.7

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	14.7	16	15	14	14	16
February	16.5	18	16	17	18	18
March	18.2	19	20	17	18	18
April	20.8		22	21	19	21
May	25.1		25	28	25	27
June	30.9		30	34	31	29
July	34.6		37	37	34	33
August	33.9		34	35	34	34
September	30.1		32	31	31	29
October	25.3		29	27	24	22
November	19.2		21	21	18	21
December	15.8		17	18	15	15
Average	23.0	17.5	24.7	25.2	23.4	23.5

1st highest temperature of Italy

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	4.7	6	4	4	6	6
February	5.2	7	3	5	7	6
March	6.8	9	6	7	6	6
April	8.8		8	9	8	10
May	13.0		13	14	13	14
June	17.8		18	19	18	16
July	20.9		22	21	21	20
August	20.6		19	21	21	21
September	18.3		18	19	20	18
October	13.6		16	14	13	12
November	9.6		11	10	10	10
December	6.7		7	8	6	7
Average	11.5	7.0	12.0	12.7	12.5	12.1

58th lowest temperature of Italy

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Precipitation (%)

Month	Average	2024	2023	2022	2021	2020
January	6.0	4	9	3	10	2
February	4.6	7	6	2	3	0
March	4.6	7	0	5	3	4
April	4.7		2	5	8	4
May	5.3		7	3	2	4
June	2.1		4	1	1	3
July	0.3		0	0	1	0
August	0.8		1	1	0	1
September	1.3		0	1	1	3
October	2.6		3	2	3	3
November	10.9		5	10	14	2
December	7.1		4	6	11	9
Average	4.2	6.2	3.2	2.7	4.3	2.8

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	7.7	7	7	8	8	7
February	7.8	7	6	10	7	10
March	8.4	8	9	8	8	8
April	8.1		9	9	8	7
May	8.7		8	7	9	9
June	8.9		8	9	9	10
July	9.6		10	9	10	9
August	8.8		10	8	9	10
September	8.1		8	9	8	7
October	7.6		8	7	7	8
November	6.9		9	7	5	7
December	7.5		8	5	7	6
Average	8.2	7.5	8.3	8.0	8.1	8.3

1st highest wind speed of Italy

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	302°	303°	312°	294°	019°
February	288°	108°	309°	253°	310°
March	275°	287°	125°	303°	302°
April		305°	226°	180°	160°
May		299°	161°	292°	187°
June		201°	164°	158°	298°
July		307°	098°	310°	319°
August		302°	301°	327°	315°
September		180°	279°	154°	284°
October		211°	157°	310°	286°
November		299°	296°	243°	298°
December		316°	250°	295°	265°

Prevailing wind direction

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