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
With average high temperatures of 81.1°F (27.3°C) and lows of 64°F (17.8°C), July is the warmest month.Heat index
Throughout July, the heat index is evaluated at a hot 87.8°F (31°C). Prolonged exposure combined with continuous activity could lead to exhaustion, and possibly heat cramps.The standards for the heat index are set for locations in shade and under light breezes. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is an aggregate value of air's warmth and moisture to show the human-felt temperature. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
Humidity
In July, the average relative humidity is 81%.Rainfall
In July, in Decatur, the rain falls for 16.1 days. Throughout July, 2.28" (58mm) of precipitation is accumulated. In Decatur, Indiana, during the entire year, the rain falls for 159.4 days and collects up to 23.74" (603mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
In July, the average length of the day is 14h and 46min.On the first day of July in Decatur, sunrise is at 6:12 am and sunset at 9:15 pm. On the last day of the month, sunrise is at 6:35 am and sunset at 8:56 pm EDT.
Sunshine
The month with the most sunshine in Decatur is July, with an average of 10.3h of sunshine.UV index
The months with the highest UV index are June and July, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index, 6 during July, leads to the following recommendations:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Frequently asked questions
What is the hottest time of year in Decatur?
What is the usual temperature for Decatur in July?
What is the average humidity in July in Decatur?
How many days does it rain in July in Decatur?
When it does not snow in Decatur?
What is the average length of the day in July in Decatur?
What time are sunrise and sunset in July in Decatur?
What month has the most sunshine in Decatur?
How many hours of sunshine does Decatur have in July?
What are the months with the highest UV index in Decatur?
What is the UV index reading in July in Decatur?
Average temperature in July
Decatur, IN
- Average high temperature in July: 81.1°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (31.3°F).
- Average low temperature in July: 64°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in July
Decatur, IN
- Average pressure in July: 29.97"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in July
Decatur, IN
- Average wind speed in July: 6.2mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in July
Decatur, IN
- Average humidity in July: 81%
The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall in July
Decatur, IN
- Average rainfall in July: 2.28"
The wettest month (with the highest rainfall) is May (3.03").
The driest month (with the least rainfall) is February (1.34").
Average rainfall days in July
Decatur, IN
- Average rainfall days in July: 16.1 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (7.5 days).
Average snowfall in July
Decatur, IN
- Average snowfall in July: 0"
The month with the highest snowfall is February (2.83").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in July
Decatur, IN
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (13.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in July /
Average sunshine in July
Decatur, IN
- Average daylight in July: 14h and 5min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in July: 10h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in July
Decatur, IN
- Average sunshine days in July: 11.9 days
The month with the most sunshine days is November (16.3 days).
The month with the least sunshine days is June (10 days).
Average UV index in July
Decatur, IN
- Average UV index in July: 6
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in July
Decatur, IN
- Average cloud cover in July: 32
The month with the most cloud cover is January (Cloud cover 64).
The months with the least cloud cover are July and August (Cloud cover 32).
Average visibility in July
Decatur, IN
- Average visibility in July: 6mi
The months with the highest visibility are February, March, April, May, June, July, September, October, November and December (6mi).
The months with the lowest visibility are January and August (5mi).
Decatur, Indiana, USA
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