August weather forecast
Pasadena Hills, MO

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Weather in August

August, the last month of the summer in Pasadena Hills, is also a moderately hot month, with an average temperature ranging between min 67.1°F (19.5°C) and max 85.5°F (29.7°C).

Temperature

As July turns into August, the average high-temperatures rest at a warm 85.5°F (29.7°C), showing a minor variation from the prior month. Pasadena Hills reports a consistent average low-temperature of 67.1°F (19.5°C) throughout August nights.

Heat index

During August, the heat index is estimated at a fiery hot 95°F (35°C). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. When the air contains significant moisture, the efficiency of the evaporation process decreases, preventing the body from cooling down effectively and creating a feeling of overheating. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

In August, the average relative humidity is 75%.

Rainfall

In Pasadena Hills, in August, it is raining for 14.2 days, with typically 3.31" (84mm) of accumulated precipitation. Throughout the year, there are 144.8 rainfall days, and 30.59" (777mm) of precipitation is accumulated.

Snowfall

In Pasadena Hills, snow does not fall in April through October.

Daylight

The average length of the day in August is 13h and 38min.
On the first day of August, sunrise is at 6:03 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 6:30 am and sunset at 7:32 pm CDT.

Sunshine

In August, the average sunshine is 10.3h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum UV index of 6 during August translates into these guidelines:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Updated: Jul 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is August in Pasadena Hills?

The high-temperature during August is 85.5°F (29.7°C) and the low-temperature is 67.1°F (19.5°C). In August, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines air temperature and relative humidity, is estimated at 95°F (35°C).

What is the average humidity in August?

The average relative humidity in August is 75%.

How much does it rain in August?

In August, the rain falls for 14.2 days. Throughout August, 3.31" (84mm) of precipitation is accumulated.

When it does not snow?

April through October are months without snowfall.

How many hours of daylight does Pasadena Hills have in August?

In Pasadena Hills, the average day length in August is 13h and 38min.

When are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 6:03 am and sunset at 8:11 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 Pasadena Hills have in August?

The average sunshine duration in August is 10.3h.

What is the month 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 intensity in August?

In August, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health threat 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 August
Pasadena Hills, MO

Average temperature in August - Pasadena Hills, MO
  • Average high temperature in August: 85.5°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 August: 67.1°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 August
Pasadena Hills, MO

Average pressure in August - Pasadena Hills, MO
  • Average pressure in August: 29.98"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 August
Pasadena Hills, MO

Average wind speed in August - Pasadena Hills, MO
  • Average wind speed in August: 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 August
Pasadena Hills, MO

Average humidity in August - Pasadena Hills, MO
  • Average humidity in August: 75%

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

Average rainfall in August
Pasadena Hills, MO

Average rainfall in August - Pasadena Hills, MO
  • Average rainfall in August: 3.31"

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 August
Pasadena Hills, MO

Average rainfall days in August - Pasadena Hills, MO
  • Average rainfall days in August: 14.2 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 August
Pasadena Hills, MO

Average snowfall in August - Pasadena Hills, MO
  • Average snowfall in August: 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 August
Pasadena Hills, MO

Average snowfall days in August - Pasadena Hills, MO
  • Average snowfall days in August: 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 August /
Average sunshine in August
Pasadena Hills, MO

Average daylight in August / Average sunshine in August - Pasadena Hills, 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 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 August
Pasadena Hills, MO

Average sunshine days in August - Pasadena Hills, MO
  • Average sunshine days in August: 13.8 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 August
Pasadena Hills, MO

Average UV index in August - Pasadena Hills, 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).

Average cloud cover in August
Pasadena Hills, MO

Average cloud cover in August - Pasadena Hills, 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).

Average visibility in August
Pasadena Hills, MO

Average visibility in August - Pasadena Hills, 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).

Pasadena Hills, Missouri, USA

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