July weather forecastDarby, FL
July
Weather in July
July, like June, is another tropical summer month in Darby, Florida, with an average temperature fluctuating between 75.9°F (24.4°C) and 89.6°F (32°C).Temperature
At the start of July, Darby's average high-temperature reaches a still hot 89.6°F (32°C), subtly different from the preceding month. Darby records an average low-temperature of 75.9°F (24.4°C) throughout the month of July.Heat index
July's mean heat index is estimated at a blistering 109.4°F (43°C). Stay mindful: Heat exhaustion and heat cramps are likely. Heatstroke could follow extended physical effort.It is emphasized that the heat index's values are meant for shaded zones with mild winds. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', marries air temperature and humidity to produce a value illustrating perceived warmth. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
Evaporating sweat, an outcome of perspiration, is key in assisting the human body to moderate its temperature. Elevated relative humidity diminishes evaporation, thereby reducing the body's ability to shed heat and creating a feeling of being too warm. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.
Humidity
The months with the highest humidity are July through September, with an average relative humidity of 77%.Rainfall
July is the month with the most rainfall. Rain falls for 23 days and accumulates 3.62" (92mm) of precipitation.Daylight
The average length of the day in July is 13h and 44min.On the first day of the month, sunrise is at 6:36 am and sunset at 8:30 pm. On the last day of July, sunrise is at 6:51 am and sunset at 8:20 pm EDT.
Sunshine
In Darby, the average sunshine in July is 10.8h.UV index
The months with the highest UV index in Darby are May through September, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for average individuals.Note: An average maximum UV index of 7 in July leads to these recommendations:
Prevent overexposure. Protection from the sun's harmful effects is needed. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Darby, FL
- Average high temperature in July: 89.6°F
The warmest month (with the highest average high temperature) is August (90.1°F).
The month with the lowest average high temperature is January (67.6°F).
- Average low temperature in July: 75.9°F
The month with the highest average low temperature is August (76.6°F).
The coldest month (with the lowest average low temperature) is January (50.9°F).
Average pressure in July
Darby, 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
Darby, FL
- Average wind speed in July: 4.8mph
The windiest month (with the highest average wind speed) is March (6.8mph).
The calmest month (with the lowest average wind speed) is July (4.8mph).
Average humidity in July
Darby, FL
- Average humidity in July: 77%
The months with the highest relative humidity are July, August and September (77%).
The months with the lowest relative humidity are January, March, April and May (72%).
Average rainfall in July
Darby, FL
- Average rainfall in July: 3.62"
The wettest month (with the highest rainfall) is July (3.62").
The driest months (with the least rainfall) are January and March (0.55").
Average rainfall days in July
Darby, FL
- Average rainfall days in July: 23 days
The month with the highest number of rainy days is August (23.2 days).
The month with the least rainy days is January (6.9 days).
Average daylight in July /
Average sunshine in July
Darby, FL
- Average daylight in July: 13h and 42min
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: 10h and 48min
The month with the most sunshine is May (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 18min).
Average sunshine days in July
Darby, FL
- Average sunshine days in July: 5 days
The month with the most sunshine days is January (22.7 days).
The month with the least sunshine days is July (5 days).
Average UV index in July
Darby, 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
Darby, FL
- Average cloud cover in July: 29
The months with the most cloud cover are January, February and December (Cloud cover 33).
The month with the least cloud cover is May (Cloud cover 25).
Average visibility in July
Darby, 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).
