Climate Grazzanise Air Base 2020-2024

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

Calculated from historical METAR data of Grazzanise Air Base (LIRM) between 2020 and 2024.

VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	84.3	82	82	87	79	85
February	77.4	80	78	86	69	85
March	85.5	82	80	91	89	89
April	86.7		90	93	90	85
May	87.0		81	91	95	95
June	94.3		96	99	98	94
July	95.7		97	96	99	98
August	96.5		96	98	99	93
September	93.6		97	88	98	94
October	89.9		89	88	94	89
November	83.3		90	80	79	86
December	84.5		88	76	91	79
Average	88.0	81.0	89.1	90.7	91.2	89.9

47th 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	94.4	95	94	92	94	94
February	92.0	94	93	95	88	95
March	96.7	97	95	98	99	96
April	96.2		99	98	96	95
May	96.1		95	95	100	100
June	98.8		100	100	99	99
July	99.3		100	100	99	100
August	99.3		100	100	100	99
September	98.3		100	94	100	98
October	96.9		98	95	99	97
November	94.9		97	91	94	96
December	94.9		99	87	98	95
Average	96.6	95.4	97.5	96.1	97.4	97.2

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	12.7	15	14	13	12	13
February	14.3	16	14	15	15	15
March	16.2	17	16	15	16	17
April	19.3		18	19	18	19
May	23.4		22	25	23	24
June	29.3		28	32	29	26
July	31.7		32	33	31	30
August	32.0		31	32	32	31
September	28.3		30	27	29	29
October	23.6		26	24	22	21
November	18.1		19	18	18	18
December	14.6		15	16	14	16
Average	21.2	15.9	21.9	22.5	21.5	21.7

23rd 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	3.8	5	5	4	4	3
February	4.5	6	3	4	5	5
March	5.8	7	6	4	4	6
April	8.1		7	8	6	9
May	12.6		13	13	11	13
June	17.7		17	19	17	16
July	20.2		21	21	19	19
August	19.8		19	20	20	19
September	17.0		17	17	17	17
October	13.1		15	14	12	11
November	10.1		10	10	12	10
December	5.8		7	8	5	6
Average	10.8	5.9	11.5	11.9	10.9	10.8

51st 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	9.5	11	12	5	17	3
February	6.2	4	4	6	8	1
March	5.5	9	3	4	4	5
April	4.6		10	4	3	7
May	5.7		17	2	2	5
June	1.6		1	3	1	4
July	0.1		0	0	0	0
August	0.7		1	1	1	1
September	1.8		1	5	0	2
October	3.5		3	2	6	7
November	13.2		11	15	23	7
December	10.6		4	21	13	18
Average	5.1	8.0	5.4	4.5	5.3	4.5

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	3.4	5	7	0	0	6
February	4.3	6	7	0	0	6
March	4.3	7	7	3	0	3
April	5.0		8	8	0	7
May	4.9		7	7	0	7
June	5.3		6	7	0	7
July	5.8		7	7	0	6
August	5.0		7	7	0	3
September	4.7		7	7	0	0
October	2.6		7	5	0	0
November	3.5		7	7	0	4
December	2.4		5	6	0	1
Average	4.6	6.2	6.8	5.4	0.0	4.3

23rd 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	006°	010°	039°	190°	034°
February	147°	001°	360°	360°	262°
March	191°	200°	018°	360°	233°
April		243°	210°	243°	308°
May		317°	187°	026°	297°
June		220°	214°	045°	253°
July		208°	217°	213°	272°
August		220°	233°	360°	257°
September		341°	218°	071°	040°
October		203°	304°	029°	116°
November		224°	359°	053°	053°
December		353°	343°	084°	098°

Prevailing wind direction

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