July weather forecast
Florissant, MO

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Weather in July

July is peak summer in Florissant, with the city experiencing its highest temperatures. The mercury often rises to a scorching 86.5°F (30.3°C), giving the month its character. Despite this, there is a drop in rain, leading to dry conditions which are typical of summer months. Keeping hydrated and investing in sun protection becomes essential during outdoor activities.

Temperature

The warmest time of the year is July, with temperatures averaging a high of 86.5°F (30.3°C) and a low of 68.7°F (20.4°C).

Heat index

The heat index value for July is calculated to be a very hot 98.6°F (37°C). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.
Note that heat index values are valued for light wind and location in the shade. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', measures the perceived warmth when incorporating the humidity present in the air. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly critical for babies and toddlers. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. An increase in relative humidity disrupts body cooling by slowing the evaporation rate, thereby reducing the rate at which the body cools and amplifying the sense of heat. Rising body temperatures resulting from an imbalance in heat absorption can lead to potential thermal issues.

Humidity

The average relative humidity in July is 76%.

Rainfall

In Florissant, Missouri, in July, it is raining for 16.9 days, with typically 3.15" (80mm) of accumulated precipitation. Throughout the year, there are 149 rainfall days, and 31.61" (803mm) of precipitation is accumulated.

Snowfall

In Florissant, snow does not fall in April through October.

Daylight

The average length of the day in July is 14h and 34min.
On the first day of July, sunrise is at 5:40 am and sunset at 8:30 pm. On the last day of the month, sunrise is at 6:02 am and sunset at 8:12 pm CDT.

Sunshine

The months with the most sunshine 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 health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: A daily high UV index of 6 in July leads to these guidelines:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Updated: Aug 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the warmest months?

In Florissant, July is identified by the average highest temperatures, reaching a peak of 86.5°F (30.3°C) and a low of 68.7°F (20.4°C).

Is it hot during July?

In Florissant, 86.5°F (30.3°C) is the average high-temperature and 68.7°F (20.4°C) is the average low-temperature during July. In July, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is calculated to be 98.6°F (37°C).

What is the average humidity in July?

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

How many days does it rain in July?

In July, the rain falls for 16.9 days. Throughout July, 3.15" (80mm) of precipitation is accumulated.

When it does not snow?

In Florissant, snow does not fall in April through October.

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

In July, the average day length is 14h and 34min.

When is the sunrise / sunset in July?

On the first day of July, sunrise is at 5:40 am and sunset at 8:30 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?

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

How long on average sun shines in July?

In July, the average sunshine duration is 10.5h.

What are the months with the highest UV index?

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

What is the UV index intensity in July?

The average daily maximum UV index in July is 6. A UV Index of 6 to 7 symbolizes a high health risk 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
Florissant, MO

Average temperature in July - Florissant, MO
  • Average high temperature in July: 86.5°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (37.2°F).

  • Average low temperature in July: 68.7°F

The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (24.1°F).

Average pressure in July
Florissant, MO

Average pressure in July - Florissant, 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
Florissant, MO

Average wind speed in July - Florissant, MO
  • Average wind speed in July: 5.6mph

The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest month (with the lowest average wind speed) is July (5.6mph).

Average humidity in July
Florissant, MO

Average humidity in July - Florissant, 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
Florissant, MO

Average rainfall in July - Florissant, MO
  • Average rainfall in July: 3.15"

The wettest month (with the highest rainfall) is May (3.82").
The driest month (with the least rainfall) is February (1.69").

Average rainfall days in July
Florissant, MO

Average rainfall days in July - Florissant, MO
  • Average rainfall days in July: 16.9 days

The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (7.3 days).

Average snowfall in July
Florissant, MO

Average snowfall in July - Florissant, MO
  • Average snowfall in July: 0"

The month with the highest snowfall is February (2.95").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in July
Florissant, MO

Average snowfall days in July - Florissant, MO
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (6.7 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
Florissant, MO

Average daylight in July / Average sunshine in July - Florissant, MO
  • Average daylight in July: 14h and 4min

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 February (Average sunshine: 4h and 36min).

Average sunshine days in July
Florissant, MO

Average sunshine days in July - Florissant, MO
  • Average sunshine days in July: 12 days

The month with the most sunshine days is October (19 days).
The month with the least sunshine days is May (11 days).

Average UV index in July
Florissant, MO

Average UV index in July - Florissant, 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, November and December (UV index 2).

Average cloud cover in July
Florissant, MO

Average cloud cover in July - Florissant, 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
Florissant, MO

Average visibility in July - Florissant, 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).

Florissant, Missouri, USA

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