Weather in Horry County

Calculated from weather data of Myrtle Beach International Airport (KMYR) between 2020 and 2024.

Maximum temperatures (°F)

Month	Average	2024	2023	2022	2021	2020
January	56.0	57.0	61.0	54.0	56.0	61.0
February	62.0	60.0	66.0	62.0	56.0	60.0
March	65.0	68.0	67.0	68.0	66.0	68.0
April	72.0		73.0	72.0	73.0	73.0
May	78.0		76.0	80.0	78.0	76.0
June	83.0		83.0	85.0	83.0	82.0
July	87.0		88.0	87.0	85.0	87.0
August	86.0		87.0	85.0	85.0	86.0
September	83.0		82.0	83.0	83.0	81.0
October	76.0		74.0	72.0	76.0	76.0
November	66.0		65.0	68.0	64.0	70.0
December	61.0		61.0	61.0	66.0	58.0
Average	72.0	62.0	74.0	73.0	73.0	73.0

Average highest temperature per day

The maximum temperature is typically observed some hours after noon.

Minimum temperatures (°F)

Month	Average	2024	2023	2022	2021	2020
January	41.0	39	45	36	42	46
February	47.0	44	49	45	42	45
March	50.0	53	51	51	50	53
April	57.0		58	56	56	56
May	66.0		62	67	63	64
June	72.0		69	72	72	71
July	75.0		76	76	75	76
August	75.0		75	75	76	76
September	70.0		68	69	69	70
October	61.0		58	53	62	64
November	49.0		49	55	45	55
December	45.0		45	46	49	41
Average	58.0	45.0	59.0	59.0	59.0	60.0

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Cold and hot days

Number of days	2024	2023	2022	2021	2020
86 °F or warmer	0	55	44	29	46
77 °F or warmer	0	144	152	157	151
68 °F or warmer	18	250	245	248	251
32 °F or colder	7	6	13	9	8

Precipitation (%)

Month	Average	2024	2023	2022	2021	2020
January	5.8	2	6	6	10	3
February	9.4	6	11	6	19	12
March	5.9	6	7	7	5	7
April	3.5		5	3	1	4
May	3.9		8	1	2	3
June	3.8		3	3	6	4
July	4.5		3	11	4	3
August	4.9		5	5	6	6
September	5.6		5	6	4	7
October	3.3		3	1	4	2
November	5.1		7	5	2	8
December	8.8		7	1	9	5
Average	5.2	4.8	5.6	4.7	5.6	5.2

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 (miles per hour)

Month	Average	2024	2023	2022	2021	2020
January	9.7	11	9	10	9	10
February	9.5	10	9	9	10	10
March	10.4	10	10	10	10	10
April	11.0		10	11	11	12
May	10.4		10	11	11	10
June	9.6		9	9	10	10
July	9.5		9	10	10	8
August	8.5		9	8	8	8
September	9.1		9	8	8	8
October	8.8		9	8	9	8
November	8.9		9	9	9	9
December	8.6		9	7	8	9
Average	9.6	10.2	9.3	9.2	9.4	9.3

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	W	SW	NW	W	NW
February	W	SW	SE	NW	W
March	SW	W	S	NE	S
April		S	S	SW	SW
May		E	S	S	S
June		S	SE	S	SW
July		S	S	S	S
August		S	S	S	S
September		N	E	SE	NE
October		N	N	NW	NE
November		N	N	N	N
December		NW	N	W	NW

Prevailing wind direction

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

Horry County weather Q&A

What is the warmest month in Horry County?

The warmest month is July with an average temperature of 87 °F over the past years.

What is the coldest month in Horry County?

The coldest month is January with an average daytime temperature of 56 °F in the past few years.

Which month is the wettest in Horry County?

Chance of precipitation is the highest in February with a probability of around 9.5 %.

Which month is the driest in Horry County?

The least rainfall and snow can be expected in October. The probability is about 3.4 %.