July weather forecast
Webster Groves, MO

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Weather in July

July marks mid-summer in Webster Groves, and it is characterized by hot days and warm nights. The mercury soars from previous months, achieving the highest recorded values at 86.9°F (30.5°C) during the day and 69.1°F (20.6°C) overnight. Weekend trips to the river or lake become a common leisure activity among locals. Meanwhile, the long sunlit hours make summer gardening viable, and barbeques, backyard parties become a common sight. Despite occasional heatwaves, residents adapt effortlessly to enjoy the full swing of the warm season.

Temperature

The month of July, characterized by an average high of 86.9°F (30.5°C) and a low of 69.1°F (20.6°C), is recognized as the warmest.

Heat index

The heat index value for July is evaluated at a very hot 100.4°F (38°C). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.
When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', comes about by integrating the temperature readings with the humidity levels. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
To offset high temperatures, the human body releases sweat which, upon evaporation, cools it down. An elevated level of relative humidity hinders evaporation, leading to decreased heat elimination from the body, inducing a sensation of excess heat. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.

Humidity

In Webster Groves, the average relative humidity in July is 76%.

Rainfall

In Webster Groves, in July, it is raining for 16.7 days, with typically 3.19" (81mm) of accumulated precipitation. Throughout the year, there are 144.8 rainfall days, and 30.59" (777mm) of precipitation is accumulated.

Snowfall

In Webster Groves, snow does not fall in April through October.

Daylight

In Webster Groves, the average length of the day in July is 14h and 33min.
On the first day of the month, sunrise is at 5:41 am and sunset at 8:29 pm. On the last day of July, sunrise is at 6:02 am and sunset at 8:12 pm CDT.

Sunshine

The months with the most sunshine in Webster Groves are June and July, with an average of 10.5h of sunshine.

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 exposure to the Sun's UV radiation for the average person.
Note: An average maximum UV index of 6 in July leads to these recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.

Frequently asked questions

What time of the year is the hottest?

In Webster Groves, July registers the highest temperatures, averaging 86.9°F (30.5°C) at the peak and 69.1°F (20.6°C) at the lowest.

How hot is July?

In Webster Groves, 86.9°F (30.5°C) is the average high-temperature and 69.1°F (20.6°C) is the average low-temperature during July. In July, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines air temperature and relative humidity, is evaluated at 100.4°F (38°C).

What is the average humidity in July?

The average relative humidity in July is 76%.

How much does it rain in July?

In July, the rain falls for 16.7 days. Throughout July, 3.19" (81mm) of precipitation is accumulated.

When it does not snow?

In Webster Groves, snow does not fall in April through October.

How many hours of daylight does Webster Groves have in July?

In July, the average day length is 14h and 33min.

When are sunrise and sunset in July?

On the first day of July, sunrise is at 5:41 am and sunset at 8:29 pm. On the last day of the month, sunrise is at 6:02 am and sunset at 8:12 pm CDT.

What are the months with the most sunshine in Webster Groves?

The months with the most sunshine are June and July, with an average of 10.5h of sunshine.

How long on average sun shines in July?

In Webster Groves, the average sunshine duration in July is 10.5h.

What are the months with the highest UV index?

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

What is the UV index reading in July?

The average daily maximum UV index in July is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health 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
Webster Groves, MO

Average temperature in July - Webster Groves, MO
  • Average high temperature in July: 86.9°F

The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (37.8°F).

  • Average low temperature in July: 69.1°F

The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

Average pressure in July
Webster Groves, MO

Average pressure in July - Webster Groves, MO
  • Average pressure in July: 29.97"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in July
Webster Groves, MO

Average wind speed in July - Webster Groves, MO
  • Average wind speed in July: 5.5mph

The windiest month (with the highest average wind speed) is January (9.2mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

Average humidity in July
Webster Groves, MO

Average humidity in July - Webster Groves, MO
  • Average humidity in July: 76%

The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (70%).

Average rainfall in July
Webster Groves, MO

Average rainfall in July - Webster Groves, MO
  • Average rainfall in July: 3.19"

The wettest month (with the highest rainfall) is May (3.58").
The driest month (with the least rainfall) is February (1.69").

Average rainfall days in July
Webster Groves, MO

Average rainfall days in July - Webster Groves, MO
  • Average rainfall days in July: 16.7 days

The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is January (6.5 days).

Average snowfall in July
Webster Groves, MO

Average snowfall in July - Webster Groves, MO
  • Average snowfall in July: 0"

The month with the highest snowfall is February (2.6").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in July
Webster Groves, MO

Average snowfall days in July - Webster Groves, MO
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is February (5.2 days).
The months with the least snowfall days are May, June, July and August (0 days).

Average daylight in July /
Average sunshine in July
Webster Groves, MO

Average daylight in July / Average sunshine in July - Webster Groves, MO
  • 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 30min).

  • 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 36min).

Average sunshine days in July
Webster Groves, MO

Average sunshine days in July - Webster Groves, MO
  • Average sunshine days in July: 11.5 days

The month with the most sunshine days is January (21 days).
The month with the least sunshine days is June (11.2 days).

Average UV index in July
Webster Groves, MO

Average UV index in July - Webster Groves, MO
  • 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 and December (UV index 2).

Average cloud cover in July
Webster Groves, MO

Average cloud cover in July - Webster Groves, MO
  • Average cloud cover in July: 28

The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in July
Webster Groves, MO

Average visibility in July - Webster Groves, MO
  • 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).

Webster Groves, Missouri, USA

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