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 an average high-temperature of 82.9°F (28.3°C) and an average low-temperature of 66.4°F (19.1°C), July is the warmest month.Heat index
For most parts of July, the heat index is estimated at a hot 91.4°F (33°C). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.One should be cognizant that the heat index values are tailored for shaded spots and mild winds. 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 a numerical representation of warmth when taking temperature and moisture levels into account. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
Humidity
July is the most humid month, with an average relative humidity of 83%.Rainfall
In Westfield, in July, during 12.5 rainfall days, 1.22" (31mm) of precipitation is typically accumulated. Throughout the year, in Westfield, there are 115.9 rainfall days, and 11.26" (286mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall in Westfield.Daylight
The average length of the day in July in Westfield is 14h and 38min.On the first day of July in Westfield, sunrise is at 5:29 am and sunset at 8:23 pm. On the last day of the month, sunrise is at 5:51 am and sunset at 8:05 pm CDT.
Sunshine
In Westfield, the average sunshine in July is 10.1h.UV index
The months with the highest UV index in Westfield, Illinois, are June through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index of 6 during July translates into these guidelines:
Resist extreme sun exposure. Guarding against solar damage is essential. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Experience reduced UV exposure by about half when donning a wide-brim hat.
Frequently asked questions
What is the hottest time of year in Westfield?
How hot is July in Westfield?
What is the most humid month in Westfield?
What is the average humidity in July in Westfield?
How many days does it rain in July in Westfield?
When it does not snow in Westfield?
What is the average length of the day in July in Westfield?
What time are sunrise and sunset in July in Westfield?
How long on average sun shines in July in Westfield?
What is the month with the highest UV index in Westfield?
What is the UV index intensity in July in Westfield?
Average temperature in July
Westfield, IL
- Average high temperature in July: 82.9°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (34.7°F).
- Average low temperature in July: 66.4°F
The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).
Average pressure in July
Westfield, IL
- Average pressure in July: 29.98"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in July
Westfield, IL
- Average wind speed in July: 6.1mph
The windiest months (with the highest average wind speed) are January and February (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.1mph).
Average humidity in July
Westfield, IL
- Average humidity in July: 83%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in July
Westfield, IL
- Average rainfall in July: 1.22"
The wettest month (with the highest rainfall) is April (1.54").
The driest month (with the least rainfall) is February (0.47").
Average rainfall days in July
Westfield, IL
- Average rainfall days in July: 12.5 days
The month with the highest number of rainy days is May (14.9 days).
The month with the least rainy days is February (6 days).
Average snowfall in July
Westfield, IL
- Average snowfall in July: 0"
The month with the highest snowfall is December (0.47").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in July
Westfield, IL
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (5.8 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
Westfield, IL
- Average daylight in July: 14h and 4min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in July: 10h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in July
Westfield, IL
- Average sunshine days in July: 14.3 days
The month with the most sunshine days is October (21.2 days).
The month with the least sunshine days is May (12.4 days).
Average UV index in July
Westfield, IL
- Average UV index in July: 6
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in July
Westfield, IL
- Average cloud cover in July: 31
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in July
Westfield, IL
- Average visibility in July: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).
Westfield, Illinois, USA
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