August weather forecast
Hazelwood, MO

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Weather in August

August, while still being warm, gives the first signs of an upcoming fall, as the temperature slightly drops to a high of 85.5°F (29.7°C). Despite being one of the warmest months, it comes with decreased daylight hours. While the city still basks under the summer sun, evenings begin to get cooler, indicative of the approaching fall season.

Temperature

Hazelwood in August witnesses an average high-temperature of a moderately hot 85.5°F (29.7°C), indicating a slight variation from July's 86.7°F (30.4°C). Hazelwood, during the month of August, experiences an average low-temperature of 67.1°F (19.5°C).

Heat index

August's mean heat index is calculated to be a very hot 95°F (35°C). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.
Realize that the values for the heat index are set for shaded places and light winds. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', measures the perceived warmth when incorporating the humidity present in the air. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
One of the main methods the human body employs to cool down is by perspiring, as this process allows sweat to evaporate and remove excess heat. Greater relative humidity lessens the rate of evaporation, thus decreasing the body's heat dispersal, which gives rise to a sensation of overheating. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.

Humidity

In August, the average relative humidity in Hazelwood is 74%.

Rainfall

In Hazelwood, in August, it is raining for 13.2 days, with typically 2.95" (75mm) of accumulated precipitation. Throughout the year, there are 141.9 rainfall days, and 27.68" (703mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall in Hazelwood.

Daylight

In August, the average length of the day in Hazelwood is 13h and 38min.
On the first day of August in Hazelwood, sunrise is at 6:03 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 6:30 am and sunset at 7:32 pm CDT.

Sunshine

In Hazelwood, the average sunshine in August is 10.3h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum high daily UV index of 6 during August translates into the following directions:
Shield from overexposure. Defense against sun-related harm is required. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
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Frequently asked questions

How hot is it in Hazelwood in August?

In August, in Hazelwood, the average high-temperature is 85.5°F (29.7°C), and the average low-temperature is 67.1°F (19.5°C). In August, 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 95°F (35°C).

What is the average humidity in August in Hazelwood?

In August, the average relative humidity is 74%.

How many days does it rain in August in Hazelwood?

In Hazelwood, Missouri, during August, the rain falls for 13.2 days and regularly aggregates up to 2.95" (75mm) of precipitation.

When it does not snow in Hazelwood?

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

How many hours of daylight does Hazelwood have in August?

The average day length in August is 13h and 38min.

When is the sunrise / sunset in August in Hazelwood?

On the first day of August, sunrise is at 6:03 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 6:30 am and sunset at 7:32 pm CDT.

How many hours of sunshine does Hazelwood have in August?

In Hazelwood, the average sunshine duration in August is 10.3h.

What is the month with the highest UV index in Hazelwood?

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

What is the UV index intensity in August in Hazelwood?

The average daily maximum UV index in August in Hazelwood is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to UV radiation.
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 August
Hazelwood, MO

Average temperature in August - Hazelwood, MO
  • Average high temperature in August: 85.5°F

The warmest month (with the highest average high temperature) is July (86.7°F).
The month with the lowest average high temperature is January (37.2°F).

  • Average low temperature in August: 67.1°F

The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

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Average pressure in August
Hazelwood, MO

Average pressure in August - Hazelwood, MO
  • Average pressure in August: 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 August
Hazelwood, MO

Average wind speed in August - Hazelwood, MO
  • Average wind speed in August: 5.6mph

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

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Average humidity in August
Hazelwood, MO

Average humidity in August - Hazelwood, MO
  • Average humidity in August: 74%

The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in August
Hazelwood, MO

Average rainfall in August - Hazelwood, MO
  • Average rainfall in August: 2.95"

The wettest month (with the highest rainfall) is May (3.31").
The driest month (with the least rainfall) is February (1.42").

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Average rainfall days in August
Hazelwood, MO

Average rainfall days in August - Hazelwood, MO
  • Average rainfall days in August: 13.2 days

The month with the highest number of rainy days is July (16.3 days).
The months with the least rainy days are February and December (7.3 days).

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Average snowfall in August
Hazelwood, MO

Average snowfall in August - Hazelwood, MO
  • Average snowfall in August: 0"

The month with the highest snowfall is February (2.05").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in August
Hazelwood, MO

Average snowfall days in August - Hazelwood, MO
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in August /
Average sunshine in August
Hazelwood, MO

Average daylight in August / Average sunshine in August - Hazelwood, MO
  • Average daylight in August: 13h 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 August: 10h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).

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Average sunshine days in August
Hazelwood, MO

Average sunshine days in August - Hazelwood, MO
  • Average sunshine days in August: 13.4 days

The month with the most sunshine days is October (19.2 days).
The month with the least sunshine days is July (11.4 days).

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Average UV index in August
Hazelwood, MO

Average UV index in August - Hazelwood, MO
  • Average UV index in August: 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).

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Average cloud cover in August
Hazelwood, MO

Average cloud cover in August - Hazelwood, MO
  • Average cloud cover in August: 27

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

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Average visibility in August
Hazelwood, MO

Average visibility in August - Hazelwood, MO
  • Average visibility in August: 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).

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Hazelwood, Missouri, USA

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