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 snowfall in July
- Average snowfall 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
July is the warmest month, with the temperature often reaching an average high of 88.5°F (31.4°C) and an average low of 69.4°F (20.8°C).Heat index
The heat index value during July is evaluated at an extremely hot 105.8°F (41°C). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.Bear in mind that the heat index values are determined for shaded areas and light breezes. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', blends air temperature and moisture content to represent the felt temperature to humans. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
To combat high temperatures, the human body perspires and relies on sweat evaporation for cooling. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.
Humidity
In Decatur, the average relative humidity in July is 76%.Rainfall
In July, in Decatur, the rain falls for 20 days. Throughout July, 3.74" (95mm) of precipitation is accumulated. In Decatur, Alabama, during the entire year, the rain falls for 177.6 days and collects up to 43.11" (1095mm) of precipitation.Snowfall
In Decatur, snow does not fall in April through October.Daylight
In July, the average length of the day is 14h and 13min.On the first day of July, sunrise is at 5:39 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 5:58 am and sunset at 7:50 pm CDT.
Sunshine
The average sunshine in July is 10.3h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index of 6 during July leads to these instructions:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. 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. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the hottest?
How hot is July?
What is the average humidity in July?
How much does it rain in July?
When it does not snow?
What is the average length of the day in July?
When are sunrise and sunset in July?
How long on average sun shines in July?
What is the month with the highest UV index?
What is the UV index reading in July?
Average temperature in July
Decatur, AL
- Average high temperature in July: 88.5°F
The warmest month (with the highest average high temperature) is July (88.5°F).
The month with the lowest average high temperature is January (47.5°F).
- Average low temperature in July: 69.4°F
The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (33.3°F).
Average pressure in July
Decatur, AL
- Average pressure in July: 30"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in July
Decatur, AL
- Average wind speed in July: 4.8mph
The windiest month (with the highest average wind speed) is February (8.6mph).
The calmest month (with the lowest average wind speed) is July (4.8mph).
Average humidity in July
Decatur, AL
- Average humidity in July: 76%
The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is October (72%).
Average rainfall in July
Decatur, AL
- Average rainfall in July: 3.74"
The wettest month (with the highest rainfall) is December (4.45").
The driest months (with the least rainfall) are September and November (2.48").
Average rainfall days in July
Decatur, AL
- Average rainfall days in July: 20 days
The month with the highest number of rainy days is July (20 days).
The month with the least rainy days is November (10.4 days).
Average snowfall in July
Decatur, AL
- Average snowfall in July: 0"
The months with the highest snowfall are January and February (0.55").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in July
Decatur, AL
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is February (2.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in July /
Average sunshine in July
Decatur, AL
- Average daylight in July: 14h and 1min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in July: 10h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in July
Decatur, AL
- Average sunshine days in July: 8.8 days
The month with the most sunshine days is October (19.2 days).
The month with the least sunshine days is July (8.8 days).
Average UV index in July
Decatur, AL
- Average UV index in July: 6
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in July
Decatur, AL
- Average cloud cover in July: 33
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in July
Decatur, AL
- 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).
Decatur, Alabama, USA
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