August weather forecast
Saint Paul, MO

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Weather in August

The last month of the summer, August, is another warm month in Saint Paul, Missouri, with an average temperature varying between 66°F (18.9°C) and 85.5°F (29.7°C).

Temperature

The onset of August marks an average high-temperature of a moderately hot 85.5°F (29.7°C), hardly differing from July's 87.1°F (30.6°C). In the month of August, Saint Paul witnesses a consistent average low-temperature of 66°F (18.9°C).

Heat index

In August, the average heat index is evaluated at a very hot 96.8°F (36°C). Take more caution, heat exhaustion and heat cramps may occur. Long-lasting activity may cause heatstroke.
Heat index's context suggests values are appropriate for shady areas and slight breezes. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', joins air temperature with relative humidity to produce a temperature perception for humans. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. In the presence of high relative humidity, the evaporation rate diminishes, resulting in the body retaining more warmth compared to dry conditions. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.

Humidity

In August, the average relative humidity is 76%.

Rainfall

In Saint Paul, in August, during 14.5 rainfall days, 3.07" (78mm) of precipitation is typically accumulated. In Saint Paul, during the entire year, the rain falls for 152.1 days and collects up to 32.01" (813mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In Saint Paul, the average length of the day in August is 13h and 38min.
On the first day of August, sunrise is at 6:04 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 6:31 am and sunset at 7:34 pm CDT.

Sunshine

In Saint Paul, the average sunshine in August 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 of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for average individuals.
Note: A maximum UV index of 6 in August translates into the following recommendations:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Updated: Aug 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in Saint Paul in August?

In August, the average high-temperature and low-temperature are 85.5°F (29.7°C) and 66°F (18.9°C) respectively. The average heat index (a.k.a. 'feels like', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in August is evaluated at 96.8°F (36°C).

What is the average humidity in August?

In August, the average relative humidity is 76%.

How many days does it rain in August?

In Saint Paul, during August, the rain falls for 14.5 days and regularly aggregates up to 3.07" (78mm) of precipitation.

When it does not snow in Saint Paul?

In Saint Paul, snow does not fall in May through October.

How many hours of daylight does Saint Paul have in August?

In Saint Paul, Missouri, the average day length in August is 13h and 38min.

When are sunrise and sunset in August?

On the first day of August, sunrise is at 6:04 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 6:31 am and sunset at 7:34 pm CDT.

How many hours of sunshine does Saint Paul have in August?

The average sunshine duration in August is 10.3h.

What is the month with the highest UV index?

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

How high is the UV index 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
Saint Paul, MO

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

The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is January (37.4°F).

  • Average low temperature in August: 66°F

The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).

Average pressure in August
Saint Paul, MO

Average pressure in August - Saint Paul, 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).

Average wind speed in August
Saint Paul, MO

Average wind speed in August - Saint Paul, MO
  • Average wind speed in August: 5.5mph

The windiest months (with the highest average wind speed) are January and February (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

Average humidity in August
Saint Paul, MO

Average humidity in August - Saint Paul, MO
  • Average humidity in August: 76%

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (72%).

Average rainfall in August
Saint Paul, MO

Average rainfall in August - Saint Paul, MO
  • Average rainfall in August: 3.07"

The wettest month (with the highest rainfall) is April (3.82").
The driest month (with the least rainfall) is February (1.77").

Average rainfall days in August
Saint Paul, MO

Average rainfall days in August - Saint Paul, MO
  • Average rainfall days in August: 14.5 days

The month with the highest number of rainy days is May (17.2 days).
The month with the least rainy days is January (7.8 days).

Average snowfall in August
Saint Paul, MO

Average snowfall in August - Saint Paul, MO
  • Average snowfall in August: 0"

The month with the highest snowfall is February (3.15").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Saint Paul, MO

Average snowfall days in August - Saint Paul, MO
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (7.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Saint Paul, MO

Average daylight in August / Average sunshine in August - Saint Paul, 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 42min).

Average sunshine days in August
Saint Paul, MO

Average sunshine days in August - Saint Paul, MO
  • Average sunshine days in August: 14.7 days

The month with the most sunshine days is October (18.6 days).
The month with the least sunshine days is June (10.9 days).

Average UV index in August
Saint Paul, MO

Average UV index in August - Saint Paul, 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, November and December (UV index 2).

Average cloud cover in August
Saint Paul, MO

Average cloud cover in August - Saint Paul, 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
Saint Paul, MO

Average visibility in August - Saint Paul, 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).

Saint Paul, Missouri, USA

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