Climate Southwest Florida International Airport 2020-2024

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

Calculated from historical METAR data of Southwest Florida International Airport (KRSW) between 2020 and 2024.

VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	86.3	76	92	81	93	93
February	87.2	85	92	83	84	87
March	90.6	85	90	86	92	96
April	93.2		91	92	93	91
May	93.3		93	94	99	92
June	92.4		94	88	94	95
July	95.4		96	96	93	97
August	94.3		92	95	96	97
September	92.2		93	83	97	87
October	92.6		90	93	95	94
November	85.0		78	75	89	85
December	88.7		85	89	87	93
Average	90.3	81.6	90.8	88.2	92.9	92.4

VFR conditions during daylight period

Percentage of observations where the VFR minimums for ceiling and visibility are met: visibility of 5 mi 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	94.0	89	95	91	96	99
February	94.3	94	98	93	93	94
March	95.8	95	95	93	96	97
April	97.7		96	96	98	98
May	96.8		94	95	100	96
June	95.8		96	93	97	97
July	97.6		97	97	97	99
August	96.8		94	97	98	98
September	96.0		96	87	99	96
October	97.5		94	96	99	99
November	94.2		93	91	96	94
December	93.8		95	92	90	99
Average	95.6	92.6	95.2	93.5	96.8	97.3

Marginal VFR conditions or better during daylight period

Percentage of observations where the MVFR minimums for ceiling and visibility are met: visibility of 3⅛ mi 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	22.5	14	25	23	23	25
February	24.1	5	28	26	27	26
March	27.5	28	29	29	27	29
April	29.7		30	30	29	30
May	31.2		31	32	31	31
June	32.1		32	32	31	32
July	32.7		33	34	32	33
August	32.8		34	34	32	34
September	32.1		32	32	31	32
October	30.3		30	30	30	31
November	27.1		27	28	25	28
December	24.9		23	26	27	24
Average	27.6	15.9	29.4	29.8	28.8	29.4

43rd highest temperature of United States

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	11.8	2	15	13	13	14
February	14.1	0	17	15	17	15
March	16.3	19	17	18	16	17
April	18.6		20	19	18	20
May	20.7		21	21	20	20
June	23.6		23	24	23	23
July	24.1		25	25	22	24
August	24.6		25	25	24	25
September	23.8		23	24	23	24
October	21.8		21	21	21	23
November	17.9		18	20	16	20
December	15.2		15	17	16	13
Average	18.1	7.0	19.9	20.2	19.1	19.8

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Precipitation (%)

Month	Average	2024	2023	2022	2021	2020
January	3.0	4	0	2	2	4
February	2.5	6	1	1	1	2
March	2.2	6	1	1	2	1
April	2.5		6	2	2	2
May	3.9		2	3	1	5
June	6.7		4	7	9	5
July	4.1		2	4	6	6
August	6.2		5	4	5	3
September	7.4		8	12	6	9
October	3.2		1	2	2	7
November	4.2		4	7	4	8
December	2.7		6	2	1	1
Average	4.2	5.4	3.2	4.0	3.4	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	8.0	9	8	7	7	8
February	8.3	8	9	8	9	9
March	8.4	8	8	10	9	8
April	9.0		9	9	9	9
May	7.8		6	7	9	8
June	6.3		7	6	7	6
July	5.9		6	7	6	7
August	6.6		9	6	6	6
September	6.9		6	7	6	7
October	8.2		8	7	7	9
November	7.8		8	8	8	10
December	7.6		9	7	6	8
Average	7.6	8.4	7.6	7.3	7.4	7.8

43rd highest wind speed of United States

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	107°	166°	019°	246°	091°
February	195°	183°	086°	204°	163°
March	164°	200°	150°	159°	150°
April		169°	120°	191°	231°
May		064°	163°	091°	104°
June		235°	140°	164°	129°
July		228°	143°	149°	149°
August		176°	141°	123°	163°
September		060°	103°	103°	099°
October		054°	057°	076°	086°
November		056°	052°	047°	069°
December		059°	067°	119°	066°

Prevailing wind direction

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