July weather forecast
Saint Clair, MO

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Weather in July

July is a hot summer month in Saint Clair, Missouri, with an average temperature fluctuating between 88.9°F (31.6°C) and 68°F (20°C).

Temperature

July is the month when Saint Clair sees the highest average temperatures, with a high of 88.9°F (31.6°C) and a low of 68°F (20°C).

Heat index

July's average heat index is appraised at a scorching 105.8°F (41°C). Extra precautions are necessary, heat cramps and heat exhaustion are plausible outcomes. Extended activity could lead to heatstroke.
For clarity, heat index numbers account for light winds and areas under shade. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
When faced with excessive heat, the human body begins to perspire, utilizing the cooling benefits of sweat evaporation. In conditions of both high temperature and humidity (a high heat index), sweating is limited and the perception of heat is enhanced. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.

Humidity

In July, the average relative humidity in Saint Clair is 75%.

Rainfall

In Saint Clair, in July, during 13.5 rainfall days, 2.13" (54mm) of precipitation is typically accumulated. Throughout the year, in Saint Clair, Missouri, there are 126.7 rainfall days, and 20.63" (524mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall.

Daylight

In July, the average length of the day in Saint Clair is 14h and 32min.
On the first day of the month, sunrise is at 5:44 am and sunset at 8:31 pm. On the last day of July, in Saint Clair, sunrise is at 6:06 am and sunset at 8:14 pm CDT.

Sunshine

The months with the most sunshine are June and July, with an average of 10.4h of sunshine.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index in Saint Clair. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum high UV index of 6 in July translates into the following recommendations:
Deflect overexposure. Sun protection is a necessity. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
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Frequently asked questions

What is the warmest month in Saint Clair?

The warmest period tends to be July, when average temperatures fluctuate between a high of 88.9°F (31.6°C) and a low of 68°F (20°C).

How hot is it in Saint Clair in July?

In Saint Clair, in July, the average high-temperature is 88.9°F (31.6°C), and the average low-temperature is 68°F (20°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which represents the influence of relative humidity on air temperature, in July is appraised at 105.8°F (41°C).

What is the average humidity in July in Saint Clair?

In Saint Clair, the average relative humidity in July is 75%.

How much does it rain in Saint Clair in July?

In Saint Clair, Missouri, during July, the rain falls for 13.5 days and regularly aggregates up to 2.13" (54mm) of precipitation.

When it does not snow in Saint Clair?

In Saint Clair, Missouri, snow does not fall in April through October.

How many hours of daylight does Saint Clair have in July?

The average day length in July in Saint Clair, Missouri, is 14h and 32min.

What time are sunrise and sunset in July in Saint Clair?

On the first day of July in Saint Clair, Missouri, sunrise is at 5:44 am and sunset at 8:31 pm. On the last day of the month, sunrise is at 6:06 am and sunset at 8:14 pm CDT.

What are the months with the most sunshine in Saint Clair?

The months with the most sunshine in Saint Clair are June and July, with an average of 10.4h of sunshine.

How long on average sun shines in July in Saint Clair?

In July, the average sunshine duration is 10.4h.

What is the month with the highest UV index in Saint Clair?

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 in Saint Clair?

In Saint Clair, the average daily maximum UV index in July is 6. A UV Index reading of 6 to 7 represents a high health risk from unsafe 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
Saint Clair, MO

Average temperature in July - Saint Clair, MO
  • Average high temperature in July: 88.9°F

The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is January (39°F).

  • Average low temperature in July: 68°F

The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

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Average pressure in July
Saint Clair, MO

Average pressure in July - Saint Clair, 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).

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Average wind speed in July
Saint Clair, MO

Average wind speed in July - Saint Clair, MO
  • Average wind speed in July: 5.3mph

The windiest month (with the highest average wind speed) is January (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).

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Average humidity in July
Saint Clair, MO

Average humidity in July - Saint Clair, MO
  • Average humidity in July: 75%

The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in July
Saint Clair, MO

Average rainfall in July - Saint Clair, MO
  • Average rainfall in July: 2.13"

The wettest months (with the highest rainfall) are April and May (2.48").
The driest months (with the least rainfall) are January and February (0.98").

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Average rainfall days in July
Saint Clair, MO

Average rainfall days in July - Saint Clair, MO
  • Average rainfall days in July: 13.5 days

The month with the highest number of rainy days is May (15.4 days).
The month with the least rainy days is January (5.9 days).

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Average snowfall in July
Saint Clair, MO

Average snowfall in July - Saint Clair, MO
  • Average snowfall in July: 0"

The month with the highest snowfall is February (1.57").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in July
Saint Clair, MO

Average snowfall days in July - Saint Clair, MO
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (6.2 days).
The months with the least snowfall days are May, June, July and August (0 days).

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Average daylight in July /
Average sunshine in July
Saint Clair, MO

Average daylight in July / Average sunshine in July - Saint Clair, 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 2min

The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 42min).

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Average sunshine days in July
Saint Clair, MO

Average sunshine days in July - Saint Clair, MO
  • Average sunshine days in July: 14.8 days

The month with the most sunshine days is January (20.6 days).
The month with the least sunshine days is May (13.7 days).

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Average UV index in July
Saint Clair, MO

Average UV index in July - Saint Clair, 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).

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Average cloud cover in July
Saint Clair, MO

Average cloud cover in July - Saint Clair, MO
  • Average cloud cover in July: 29

The months with the most cloud cover are January and February (Cloud cover 49).
The months with the least cloud cover are June and July (Cloud cover 29).

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Average visibility in July
Saint Clair, MO

Average visibility in July - Saint Clair, MO
  • Average visibility in July: 6mi

The months with the highest visibility are January, February, March, April, June, July, October, November and December (6mi).
The months with the lowest visibility are May, August and September (5mi).

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Saint Clair, Missouri, USA

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