Statistics Hartsfield-Jackson Atlanta International 2019-2023

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

Calculated from historical METAR data of Hartsfield-Jackson Atlanta International (KATL) between 2019 and 2023.

VFR conditions (%)

Month	Average	2023	2022	2021	2020	2019
January	74.1	64	77	73	72	71
February	65.0	72	71	59	58	59
March	79.3	79	77	83	67	87
April	84.6	75	87	95	84	87
May	84.6	76	82	90	86	92
June	87.3	81	92	84	90	87
July	91.1	95	88	91	92	94
August	86.6	90	84	86	84	91
September	86.7		86	83	77	98
October	79.2		86	80	79	74
November	77.9		74	93	76	81
December	67.0		49	66	75	73
Average	81.3	79.4	81.0	82.7	79.1	83.8

1,295th best VFR conditions of United States

VFR conditions during daylight period

Percentage of observations where the VFR minimums for ceiling and visibility are met:

• Visibility: 5 mi or more
• Ceiling: 3,000 ft or more

Only observations between sunrise and sunset are taken into account.

Marginal VFR conditions (%)

Month	Average	2023	2022	2021	2020	2019
January	86.9	81	89	88	86	88
February	79.5	87	82	71	77	70
March	90.0	88	87	91	82	97
April	92.0	84	93	98	92	96
May	94.2	93	94	96	94	97
June	94.2	91	95	93	97	95
July	96.5	98	95	96	97	97
August	93.6	94	91	94	92	95
September	93.5		92	91	89	100
October	90.4		92	92	91	88
November	88.9		88	98	88	93
December	80.0		65	83	90	83
Average	90.6	89.9	89.6	91.3	90.1	92.1

Marginal VFR conditions or better during daylight period

Percentage of observations where the MVFR minimums for ceiling and visibility are met:

• Visibility: 3⅛ mi or more
• Ceiling: 1,000 ft or more

Only observations between sunrise and sunset are taken into account.

Maximum temperatures (°C)

Month	Average	2023	2022	2021	2020	2019
January	13.2	16	13	12	14	13
February	17.0	19	17	14	15	17
March	19.7	20	21	21	21	19
April	23.1	23	23	23	22	24
May	27.1	26	28	26	26	30
June	30.0	29	32	30	29	30
July	31.8	33	32	31	32	32
August	31.2	33	30	31	31	33
September	29.3		28	28	27	34
October	24.0		23	24	24	25
November	17.7		18	18	20	17
December	14.2		14	18	13	15
Average	23.4	24.9	23.5	22.8	22.9	23.9

709th 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	2023	2022	2021	2020	2019
January	4.1	7	2	4	6	4
February	7.4	9	6	5	6	8
March	9.3	9	9	10	12	8
April	12.3	13	12	12	11	14
May	17.4	17	18	16	15	20
June	20.9	20	22	21	20	21
July	22.8	23	23	22	23	23
August	22.5	23	22	23	23	23
September	20.2		19	19	19	22
October	14.5		11	16	15	16
November	7.8		10	6	10	7
December	6.0		8	9	3	7
Average	14.0	15.2	13.7	13.6	13.7	14.2

2,169th lowest temperature of United States

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Precipitation (%)

Month	Average	2023	2022	2021	2020	2019
January	11.2	12	14	12	14	10
February	14.1	14	16	15	19	17
March	9.1	12	8	10	17	4
April	6.8	14	5	3	5	5
May	5.6	7	4	4	6	3
June	4.7	7	1	5	4	4
July	2.8	2	3	5	4	2
August	5.6	2	6	6	8	3
September	5.7		6	11	11	0
October	6.7		5	8	3	10
November	7.6		9	3	6	8
December	15.0		22	12	7	15
Average	7.5	8.2	7.3	7.4	8.3	6.2

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	2023	2022	2021	2020	2019
January	8.4	8	8	8	9	9
February	8.4	8	9	9	8	8
March	8.9	8	10	8	8	9
April	8.5	9	8	8	9	8
May	7.7	9	8	8	8	7
June	7.0	8	7	7	7	7
July	6.3	7	6	6	6	6
August	6.3	7	6	7	6	6
September	7.2		8	6	8	7
October	7.5		7	7	7	8
November	7.8		9	8	8	8
December	7.9		7	7	8	10
Average	7.6	7.8	7.7	7.2	7.7	7.5

709th 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	2023	2022	2021	2020	2019
January	267°	292°	296°	331°	300°
February	259°	290°	339°	272°	035°
March	267°	267°	095°	235°	302°
April	330°	243°	279°	293°	216°
May	056°	214°	232°	260°	248°
June	300°	336°	191°	265°	265°
July	296°	247°	255°	273°	274°
August	303°	215°	137°	231°	353°
September		038°	009°	065°	030°
October		332°	267°	069°	042°
November		032°	323°	019°	311°
December		133°	239°	305°	011°

Prevailing wind direction

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