August weather forecastNew Madrid, MO
August
Weather in August
The last month of the summer, August, is another hot month in New Madrid, Missouri, with an average temperature ranging between min 67.8°F (19.9°C) and max 86.4°F (30.2°C).Temperature
The transition into August notes an average high-temperature of a still tropical 86.4°F (30.2°C), revealing a mild distinction from the 87.6°F (30.9°C) in July. New Madrid usually reports an average low-temperature of 67.8°F (19.9°C) during the month of August.Heat index
The heat index value for August is estimated at a sweltering 98.6°F (37°C). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.Heat index evaluations are typically in the context of light winds and shaded environments. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', gauges the sensation of temperature factoring in the air's moisture content. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.
Humidity
The average relative humidity in August in New Madrid is 77%.Rainfall
In August, the rain falls for 13.3 days. Throughout August, 2.56" (65mm) of precipitation is accumulated. In New Madrid, during the entire year, the rain falls for 151.9 days and collects up to 36.06" (916mm) of precipitation.Snowfall
In New Madrid, Missouri, snow does not fall in April through September.Daylight
In New Madrid, the average length of the day in August is 13h and 31min.On the first day of the month, sunrise is at 6:04 am and sunset at 8:03 pm. On the last day of August, in New Madrid, sunrise is at 6:29 am and sunset at 7:27 pm CDT.
Sunshine
In New Madrid, the average sunshine in August is 10.4h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index. 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: In August, the maximum UV index of 6 suggests these recommendations:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. 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. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
New Madrid, MO
- Average high temperature in August: 86.4°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 (42.8°F).
- Average low temperature in August: 67.8°F
The month with the highest average low temperature is July (70.5°F).
The coldest month (with the lowest average low temperature) is January (30°F).
Average pressure in August
New Madrid, 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 (29.94"Hg).
Average wind speed in August
New Madrid, MO
- Average wind speed in August: 5.8mph
The windiest month (with the highest average wind speed) is February (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity in August
New Madrid, MO
- Average humidity in August: 77%
The month with the highest relative humidity is March (78%).
The month with the lowest relative humidity is October (68%).
Average rainfall in August
New Madrid, MO
- Average rainfall in August: 2.56"
The wettest month (with the highest rainfall) is March (4.25").
The driest month (with the least rainfall) is September (1.42").
Average rainfall days in August
New Madrid, MO
- Average rainfall days in August: 13.3 days
The month with the highest number of rainy days is May (16.4 days).
The month with the least rainy days is January (9.8 days).
Average snowfall in August
New Madrid, MO
- Average snowfall in August: 0"
The month with the highest snowfall is February (1.46").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in August
New Madrid, MO
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (3.3 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
New Madrid, MO
- Average daylight in August: 13h and 30min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in August: 10h and 24min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in August
New Madrid, MO
- Average sunshine days in August: 15.3 days
The month with the most sunshine days is October (19.3 days).
The month with the least sunshine days is May (12.8 days).
Average UV index in August
New Madrid, 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
New Madrid, MO
- Average cloud cover in August: 27
The months with the most cloud cover are February and March (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 25).
Average visibility in August
New Madrid, 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).





