Weather in Clay County

Calculated from weather data of Keystone Heights Airport (K42J) between 2020 and 2024.

Maximum temperatures (°F)

Month	Average	2024	2023	2022	2021	2020
January	67.0	66.0	71.0	65.0	67.0	69.0
February	74.0	69.0	77.0	72.0	72.0	72.0
March	75.0	76.0	77.0	77.0	76.0	82.0
April	79.0	80.0	82.0	80.0	79.0	81.0
May	86.0		84.0	87.0	86.0	85.0
June	89.0		89.0	91.0	88.0	89.0
July	87.0		92.0	91.0	88.0	91.0
August	90.0		92.0	90.0	89.0	91.0
September	87.0		87.0	85.0	87.0	87.0
October	82.0		80.0	79.0	82.0	83.0
November	73.0		72.0	74.0	70.0	76.0
December	69.0		68.0	71.0	74.0	67.0
Average	79.0	73.0	81.0	81.0	80.0	81.0

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	45.0	45	46	43	46	49
February	51.0	46	53	49	49	50
March	52.0	56	55	53	54	57
April	57.0	56	61	58	55	60
May	64.0		63	65	62	62
June	71.0		69	71	71	70
July	69.0		73	73	72	73
August	73.0		74	73	73	72
September	70.0		69	70	69	71
October	63.0		60	58	62	67
November	54.0		54	58	48	60
December	49.0		49	51	54	43
Average	59.0	51.0	61.0	60.0	60.0	61.0

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	2	107	114	102	122
77 °F or warmer	38	248	236	232	254
68 °F or warmer	85	315	298	308	316
32 °F or colder	2	2	4	4	8

Precipitation (%)

Month	Average	2024	2023	2022	2021	2020
January	0.0	0	0	0	0	0
February	0.0	0	0	0	0	0
March	0.0	0	0	0	0	0
April	0.0	0	0	0	0	0
May	0.0		0	0	0	0
June	0.0		0	0	0	0
July	0.0		0	0	0	0
August	0.0		0	0	0	0
September	0.0		0	0	0	0
October	0.0		0	0	0	0
November	0.0		0	0	0	0
December	0.0		0	0	0	0
Average

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	8.5	9	8	9	9	8
February	8.3	9	10	8	8	9
March	8.5	8	10	9	9	8
April	8.6	9	9	10	8	9
May	7.9		8	7	9	9
June	6.9		9	7	7	6
July	5.4		7	6	7	7
August	5.9		7	5	7	6
September	6.7		6	6	5	7
October	7.5		8	6	6	8
November	7.6		7	9	7	9
December	7.5		9	6	7	7
Average	7.5	8.6	8.0	7.4	7.5	7.7

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

Prevailing wind direction

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

Clay County weather Q&A

What is the warmest month in Clay County?

The warmest month is August with an average temperature of 90 °F over the past years.

What is the coldest month in Clay County?

The coldest month is January with an average daytime temperature of 67 °F in the past few years.

Which month is the wettest in Clay County?

Chance of precipitation is the highest in January with a probability of around 0.0 %.

Which month is the driest in Clay County?

The least rainfall and snow can be expected in January. The probability is about 0.0 %.