August weather forecastDeerfield, MO
August
Weather in August
The last month of the summer, August, is also a hot month in Deerfield, Missouri, with an average temperature fluctuating between 66.7°F (19.3°C) and 86°F (30°C).Temperature
In Deerfield, August's average high-temperature stands at a still tropical 86°F (30°C), closely related to the preceding month. During August, the temperature is averaged to a low of 66.7°F (19.3°C) at night.Heat index
The average heat index in August is estimated at a very hot 96.8°F (36°C). Adopt special protective actions against heat exhaustion and heat cramps. Long-duration activity risks heatstroke.Realize that the values for the heat index are set for shaded places and light winds. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', marries air temperature and humidity to produce a value illustrating perceived warmth. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
By perspiring, the human body can shed its excessive warmth since evaporated sweat cools it off. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.
Humidity
The average relative humidity in August is 75%.Rainfall
In Deerfield, Missouri, in August, during 14.4 rainfall days, 2.87" (73mm) of precipitation is typically accumulated. Throughout the year, there are 143 rainfall days, and 31.14" (791mm) of precipitation is accumulated.Snowfall
In Deerfield, snow does not fall in June through September.Daylight
In Deerfield, the average length of the day in August is 13h and 35min.On the first day of August in Deerfield, sunrise is at 6:22 am and sunset at 8:26 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 7:48 pm CDT.
Sunshine
In August, the average sunshine in Deerfield is 10.3h.UV index
In August, the average daily maximum UV index in Deerfield is 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the ordinary person.Note: In August, the maximum UV index of 6 translates into these guidelines:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Deerfield, MO
- Average high temperature in August: 86°F
The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (40.6°F).
- Average low temperature in August: 66.7°F
The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (25.9°F).
Average pressure in August
Deerfield, MO
- Average pressure in August: 29.97"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in August
Deerfield, MO
- Average wind speed in August: 6.8mph
The windiest month (with the highest average wind speed) is March (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in August
Deerfield, MO
- Average humidity in August: 75%
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in August
Deerfield, MO
- Average rainfall in August: 2.87"
The wettest month (with the highest rainfall) is May (5.16").
The driest month (with the least rainfall) is January (1.26").
Average rainfall days in August
Deerfield, MO
- Average rainfall days in August: 14.4 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is December (6.4 days).
Average snowfall in August
Deerfield, MO
- Average snowfall in August: 0"
The month with the highest snowfall is February (2.64").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Deerfield, MO
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (5.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Deerfield, MO
- Average daylight in August: 13h and 36min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in August: 10h and 18min
The months with the most sunshine are June and July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in August
Deerfield, MO
- Average sunshine days in August: 13.5 days
The month with the most sunshine days is December (21.8 days).
The month with the least sunshine days is May (11.3 days).
Average UV index in August
Deerfield, MO
- Average UV index in August: 6
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in August
Deerfield, MO
- Average cloud cover in August: 26
The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 25).
Average visibility in August
Deerfield, 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).
