Contents
- Weather in July
- Frequently asked questions
- Average temperature in July
- Average pressure in July
- Average wind speed in July
- Average humidity in July
- Average rainfall in July
- Average rainfall days in July
- Average daylight in July
- Average sunshine in July
- Average sunshine days in July
- Average UV index in July
- Average cloud cover in July
- Average visibility in July
Weather in July
Temperature
Upon the onset of July, Keystone witnesses an average high-temperature of a still hot 87.4°F (30.8°C), showing a close resemblance to the prior month. July's average low temperature is a warm 79.5°F (26.4°C), displaying a subtle drop from its daily peak.Heat index
July's heat index is appraised at a torrid 100.4°F (38°C). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.Note that heat index values are valued for light wind and location in the shade. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', blends air temperature and moisture content to represent the felt temperature to humans. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.
Humidity
The average relative humidity in July is 74%.Rainfall
The month with the most rainfall is July, when the rain falls for 17.8 days and typically aggregates up to 1.77" (45mm) of precipitation.Daylight
The average length of the day in July is 13h and 44min.On the first day of July, sunrise is at 6:37 am and sunset at 8:31 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 8:21 pm EDT.
Sunshine
In Keystone, the average sunshine in July is 11.1h.UV index
The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index of 7 during July leads to these instructions:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in Keystone in July?
What is the average humidity in July?
What is the rainiest month?
How much does it rain in July?
What is the average length of the day in July?
What time are sunrise and sunset in July?
How many hours of sunshine does Keystone have in July?
What is the month with the highest UV index?
What is the UV index intensity in July?
Average temperature in July
Keystone, FL
- Average high temperature in July: 87.4°F
The warmest month (with the highest average high temperature) is August (88.3°F).
The month with the lowest average high temperature is January (66°F).
- Average low temperature in July: 79.5°F
The month with the highest average low temperature is August (80.2°F).
The coldest month (with the lowest average low temperature) is January (54.5°F).
Average pressure in July
Keystone, FL
- Average pressure in July: 30.02"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is September (29.96"Hg).
Average wind speed in July
Keystone, FL
- Average wind speed in July: 6.7mph
The windiest months (with the highest average wind speed) are January, March and April (8.9mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).
Average humidity in July
Keystone, FL
- Average humidity in July: 74%
The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is May (72%).
Average rainfall in July
Keystone, FL
- Average rainfall in July: 1.77"
The wettest month (with the highest rainfall) is July (1.77").
The driest month (with the least rainfall) is March (0.2").
Average rainfall days in July
Keystone, FL
- Average rainfall days in July: 17.8 days
The month with the highest number of rainy days is August (17.9 days).
The month with the least rainy days is November (5.5 days).
Average daylight in July /
Average sunshine in July
Keystone, FL
- Average daylight in July: 13h and 4min
The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).
- Average sunshine in July: 11h and 1min
The month with the most sunshine is May (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).
Average sunshine days in July
Keystone, FL
- Average sunshine days in July: 6.7 days
The month with the most sunshine days is January (23.4 days).
The month with the least sunshine days is July (6.7 days).
Average UV index in July
Keystone, FL
- Average UV index in July: 7
The months with the highest UV index are May, June, July, August and September (UV index 7).
The month with the lowest UV index is January (UV index 4).
Average cloud cover in July
Keystone, FL
- Average cloud cover in July: 26
The months with the most cloud cover are January and December (Cloud cover 30).
The month with the least cloud cover is May (Cloud cover 20).
Average visibility in July
Keystone, FL
- Average visibility in July: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Keystone, Florida, USA
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