Weather in Guilford County

Calculated from weather data of Piedmont Triad International Airport (KGSO) between 2020 and 2024.

Maximum temperatures (°F)

Month	Average	2024	2023	2022	2021	2020
January	50.0	50.0	54.0	48.0	48.0	52.0
February	57.0	57.0	61.0	57.0	49.0	55.0
March	62.0	64.0	62.0	65.0	63.0	65.0
April	71.0		71.0	71.0	71.0	69.0
May	77.0		73.0	78.0	76.0	72.0
June	83.0		80.0	86.0	83.0	82.0
July	88.0		88.0	88.0	87.0	90.0
August	85.0		85.0	85.0	87.0	85.0
September	80.0		80.0	79.0	80.0	76.0
October	72.0		72.0	68.0	73.0	72.0
November	60.0		61.0	62.0	59.0	65.0
December	53.0		55.0	49.0	61.0	51.0
Average	68.0	57.0	70.0	70.0	70.0	70.0

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	33.0	33	38	29	32	38
February	38.0	38	42	35	33	38
March	42.0	44	43	43	43	48
April	50.0		49	49	48	48
May	59.0		56	59	56	55
June	66.0		62	67	66	66
July	70.0		71	71	69	71
August	69.0		67	69	69	70
September	63.0		62	62	62	61
October	53.0		51	48	56	53
November	40.0		39	44	38	45
December	36.0		37	36	42	33
Average	50.0	38.0	51.0	51.0	51.0	52.0

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	45	59	55	52
77 °F or warmer	2	129	138	144	124
68 °F or warmer	12	202	206	215	192
32 °F or colder	25	32	49	44	35

Precipitation (%)

Month	Average	2024	2023	2022	2021	2020
January	13.3	15	18	11	15	16
February	13.5	8	13	15	20	14
March	9.4	15	12	7	10	5
April	7.9		12	5	3	7
May	8.3		10	7	5	17
June	5.7		12	1	4	8
July	2.4		2	4	4	1
August	4.0		6	3	4	5
September	6.9		4	11	5	10
October	8.2		5	10	5	11
November	8.2		5	10	2	5
December	11.7		13	16	5	7
Average	8.5	12.6	9.1	7.5	6.4	8.6

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	8.6	10	8	9	8	9
February	9.3	9	10	9	10	9
March	9.9	9	9	11	9	10
April	9.9		9	10	10	11
May	9.1		10	9	7	10
June	8.0		8	8	8	9
July	7.2		7	7	7	7
August	6.6		7	7	6	7
September	7.3		7	8	7	8
October	7.1		7	6	8	7
November	7.7		7	9	8	7
December	7.6		7	7	8	9
Average	8.3	9.3	8.0	8.3	7.9	8.5

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

Prevailing wind direction

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

Guilford County weather Q&A

What is the warmest month in Guilford County?

The warmest month is July with an average temperature of 88 °F over the past years.

What is the coldest month in Guilford County?

The coldest month is January with an average daytime temperature of 50 °F in the past few years.

Which month is the wettest in Guilford County?

Chance of precipitation is the highest in February with a probability of around 13.5 %.

Which month is the driest in Guilford County?

The least rainfall and snow can be expected in July. The probability is about 2.4 %.