July weather forecast
Decatur, AL

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Weather in July

July signifies the peak of summer in Decatur, with a temperature rise from 69.4°F (20.8°C) to 88.5°F (31.4°C), the highest recorded in the year. Days in July also pack in slightly less sunshine compared to June. Although rainfall is consistent, it is insufficient to dampen the summer enthusiasm. The air pressure records a slight drop but remains within the comfortable range. Despite the high temperatures, the city's life continues with gusto, ensuring July retains its quintessential summer charm.

Temperature

In Decatur, the month of July registers the highest temperatures, averaging 88.5°F (31.4°C) at the peak and 69.4°F (20.8°C) at the lowest.

Heat index

The heat index value for July is computed to be an extremely hot 105.8°F (41°C). Exercise enhanced safety steps, heat cramps and heat exhaustion are probable. Heatstroke could be a result of sustained activity.
Understand that the heat index values take into account shaded locations and mild winds. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', comes about by integrating the temperature readings with the humidity levels. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
To combat high temperatures, the human body perspires and relies on sweat evaporation for cooling. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

In July, the average relative humidity is 76%.

Rainfall

In July, the rain falls for 20 days. Throughout July, 3.74" (95mm) of precipitation is accumulated. In Decatur, 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 in Decatur, 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

In July, the average sunshine 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 reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for average individuals.
Note: A maximum daily UV index of 6 during July morphs into the following directions:
Take precautions against overexposure. Protection against sun damage is needed. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
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Frequently asked questions

What is the warmest month in Decatur?

Decatur, Alabama, reaches its average highest temperatures in July, measuring 88.5°F (31.4°C) at the peak and 69.4°F (20.8°C) at the lowest.

How hot does it get in Decatur in July?

In Decatur, in July, the average high-temperature is 88.5°F (31.4°C), and the average low-temperature is 69.4°F (20.8°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in July is computed to be 105.8°F (41°C).

What is the average humidity in July in Decatur?

In July, the average relative humidity in Decatur, Alabama, is 76%.

How much does it rain in Decatur in July?

In Decatur, Alabama, in July, during 20 rainfall days, 3.74" (95mm) of precipitation is typically accumulated.

When it does not snow in Decatur?

April through October are months without snowfall.

What is the average length of the day in July in Decatur?

In July, the average day length in Decatur is 14h and 13min.

What time are sunrise and sunset in July in Decatur?

In July, on the first day of the month, sunrise is at 5:39 am and sunset at 8:04 pm. On the last day of the month, in Decatur, sunrise is at 5:58 am and sunset at 7:50 pm CDT.

How long on average sun shines in July in Decatur?

The average sunshine duration in July in Decatur, Alabama, is 10.3h.

What are the months with the highest UV index in Decatur?

The months with the highest UV index in Decatur are May through August, with an average maximum UV index of 6.

What is the UV index intensity in July in Decatur?

In Decatur, Alabama, the average daily maximum UV index in July is 6. A UV Index estimate of 6 to 7 represents a high health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Decatur, AL

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).

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Average pressure in July
Decatur, AL

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).

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Average wind speed in July
Decatur, AL

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).

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Average humidity in July
Decatur, AL

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%).

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Average rainfall in July
Decatur, AL

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").

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Average rainfall days in July
Decatur, AL

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).

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Average snowfall in July
Decatur, AL

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").

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Average snowfall days in July
Decatur, AL

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).

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Average daylight in July /
Average sunshine in July
Decatur, AL

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).

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Average sunshine days in July
Decatur, AL

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).

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Average UV index in July
Decatur, AL

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).

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Average cloud cover in July
Decatur, AL

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).

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Average visibility in July
Decatur, AL

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).

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Decatur, Alabama, USA

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