August weather forecastJacksonville, MO
August
Weather in August
The last month of the summer, August, is another warm month in Jacksonville, Missouri, with an average temperature varying between 65.5°F (18.6°C) and 83.8°F (28.8°C).Temperature
The shift from July to August is characterized by an average high-temperature of a still warm 83.8°F (28.8°C), not significantly different from the 84.9°F (29.4°C) of July. In Jacksonville, an average temperature of 65.5°F (18.6°C) is noted during August nights.Heat index
August's average heat index is estimated at a hot 93.2°F (34°C). Exercise enhanced safety steps, heat cramps and heat exhaustion are probable. Heatstroke could be a result of sustained activity.It is important to note that the heat index values are for shaded areas and light wind scenarios. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is the outcome of merging air's temperature and its humidity metrics. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
Humidity
The average relative humidity in August is 77%.Rainfall
In Jacksonville, during August, the rain falls for 13.3 days and regularly aggregates up to 2.56" (65mm) of precipitation. Throughout the year, there are 136.6 rainfall days, and 27.44" (697mm) of precipitation is accumulated.Snowfall
In Jacksonville, Missouri, snow does not fall in May through August.Daylight
In August, the average length of the day in Jacksonville is 13h and 41min.On the first day of the month, sunrise is at 6:10 am and sunset at 8:22 pm. On the last day of August, in Jacksonville, sunrise is at 6:37 am and sunset at 7:42 pm CDT.
Sunshine
In Jacksonville, Missouri, the average sunshine in August is 10.1h.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the average person.Note: In August, the maximum UV index of 6 translates into these guidelines:
Eschew overexposure. Those with light skin may suffer burns 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. 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
Jacksonville, MO
- Average high temperature in August: 83.8°F
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (35.2°F).
- Average low temperature in August: 65.5°F
The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).
Average pressure in August
Jacksonville, 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 (29.91"Hg).
Average wind speed in August
Jacksonville, MO
- Average wind speed in August: 6.4mph
The windiest months (with the highest average wind speed) are January, February and March (10mph).
The calmest months (with the lowest average wind speed) are July and August (6.4mph).
Average humidity in August
Jacksonville, MO
- Average humidity in August: 77%
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in August
Jacksonville, MO
- Average rainfall in August: 2.56"
The wettest month (with the highest rainfall) is May (3.62").
The driest month (with the least rainfall) is January (1.18").
Average rainfall days in August
Jacksonville, MO
- Average rainfall days in August: 13.3 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (5.2 days).
Average snowfall in August
Jacksonville, MO
- Average snowfall in August: 0"
The month with the highest snowfall is January (3.7").
The months with the least snowfall are May, June, July and August (0").
Average snowfall days in August
Jacksonville, MO
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (6.9 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in August /
Average sunshine in August
Jacksonville, MO
- Average daylight in August: 13h and 42min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in August: 10h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in August
Jacksonville, MO
- Average sunshine days in August: 15.7 days
The month with the most sunshine days is December (20.4 days).
The month with the least sunshine days is May (11.7 days).
Average UV index in August
Jacksonville, MO
- Average UV index in August: 6
The months with the highest UV index are 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
Jacksonville, MO
- Average cloud cover in August: 29
The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in August
Jacksonville, 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).
