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 stands out as Dahlgren's warmest month, with temperatures ranging between an average high of 86.4°F (30.2°C) and a low of 68.2°F (20.1°C).Heat index
The heat index value for July is estimated at a fiery hot 100.4°F (38°C). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.Metrics for the heat index primarily focus on shaded spots and light wind conditions. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'apparent temperature' or 'real feel', blends air temperature and moisture content to represent the felt temperature to humans. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. Overheating and potential dehydration arise when body heat gain eclipses its release capability.
Humidity
In Dahlgren, the average relative humidity in July is 78%.Rainfall
In Dahlgren, in July, it is raining for 15.4 days, with typically 2.52" (64mm) of accumulated precipitation. In Dahlgren, Illinois, during the entire year, the rain falls for 143.1 days and collects up to 29.65" (753mm) of precipitation.Snowfall
May through September are months without snowfall in Dahlgren, Illinois.Daylight
In Dahlgren, the average length of the day in July is 14h and 31min.On the first day of July, sunrise is at 5:35 am and sunset at 8:21 pm. On the last day of the month, sunrise is at 5:57 am and sunset at 8:05 pm CDT.
Sunshine
June and July, with an average of 10.5h of sunshine, are months with the most sunshine in Dahlgren.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the ordinary person.Note: In July, a regular UV index of 6 translates into these guidelines:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Enhance your sun protection with tightly woven, yet airy clothing.
Frequently asked questions
What is the hottest time of year in Dahlgren?
How hot is it in Dahlgren in July?
What is the average humidity in July in Dahlgren?
How many days does it rain in July in Dahlgren?
When it does not snow in Dahlgren?
What is the average length of the day in July in Dahlgren?
What time are sunrise and sunset in July in Dahlgren?
What are the months with the most sunshine in Dahlgren?
How many hours of sunshine does Dahlgren have in July?
What is the month with the highest UV index in Dahlgren?
What is the UV index intensity in July in Dahlgren?
Average temperature in July
Dahlgren, IL
- Average high temperature in July: 86.4°F
The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (38.5°F).
- Average low temperature in July: 68.2°F
The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).
Average pressure in July
Dahlgren, IL
- Average pressure in July: 29.98"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in July
Dahlgren, IL
- Average wind speed in July: 6mph
The windiest months (with the highest average wind speed) are January, February and March (9.9mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity in July
Dahlgren, IL
- Average humidity in July: 78%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (70%).
Average rainfall in July
Dahlgren, IL
- Average rainfall in July: 2.52"
The wettest month (with the highest rainfall) is April (4.13").
The driest month (with the least rainfall) is September (1.57").
Average rainfall days in July
Dahlgren, IL
- Average rainfall days in July: 15.4 days
The month with the highest number of rainy days is May (16.2 days).
The months with the least rainy days are January and February (8.3 days).
Average snowfall in July
Dahlgren, IL
- Average snowfall in July: 0"
The month with the highest snowfall is February (1.42").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in July
Dahlgren, IL
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (4.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in July /
Average sunshine in July
Dahlgren, IL
- Average daylight in July: 14h and 3min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in July: 10h and 3min
The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in July
Dahlgren, IL
- Average sunshine days in July: 13.9 days
The month with the most sunshine days is October (20.3 days).
The month with the least sunshine days is May (11.8 days).
Average UV index in July
Dahlgren, IL
- 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, February, November and December (UV index 2).
Average cloud cover in July
Dahlgren, IL
- Average cloud cover in July: 28
The months with the most cloud cover are January and February (Cloud cover 51).
The months with the least cloud cover are June, July and August (Cloud cover 28).
Average visibility in July
Dahlgren, IL
- 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).
Dahlgren, Illinois, USA
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