Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
The advent of August brings an average high-temperature of a warm 85.8°F (29.9°C), almost identical to the preceding month. Fortuna, in August, observes a steady average low-temperature of 65.8°F (18.8°C).Heat index
During August, the heat index is evaluated at a fiery hot 96.8°F (36°C). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.Heat index's context suggests values are appropriate for shady areas and slight breezes. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.
Humidity
In August, the average relative humidity in Fortuna is 75%.Rainfall
In Fortuna, in August, during 14 rainfall days, 2.6" (66mm) of precipitation is typically accumulated. Throughout the year, there are 141.2 rainfall days, and 29.72" (755mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall.Daylight
In Fortuna, the average length of the day in August is 13h and 37min.On the first day of the month, sunrise is at 6:13 am and sunset at 8:21 pm. On the last day of August, sunrise is at 6:40 am and sunset at 7:42 pm CDT.
Sunshine
The average sunshine in August is 10.3h.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The UV index of 6 in August translates into these instructions:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is August?
What is the average humidity in August in Fortuna?
How much does it rain in August?
When it does not snow?
How many hours of daylight does Fortuna have in August?
When is the sunrise / sunset in August?
How many hours of sunshine does Fortuna have in August?
What is the month with the highest UV index?
What is the UV index intensity in August?
Average temperature in August
Fortuna, MO
- Average high temperature in August: 85.8°F
The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (37.4°F).
- Average low temperature in August: 65.8°F
The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (23.7°F).
Average pressure in August
Fortuna, 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
Fortuna, MO
- Average wind speed in August: 6.3mph
The windiest months (with the highest average wind speed) are January and March (9.5mph).
The calmest month (with the lowest average wind speed) is July (6.2mph).
Average humidity in August
Fortuna, MO
- Average humidity in August: 75%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (72%).
Average rainfall in August
Fortuna, MO
- Average rainfall in August: 2.6"
The wettest month (with the highest rainfall) is May (4.25").
The driest month (with the least rainfall) is January (1.3").
Average rainfall days in August
Fortuna, MO
- Average rainfall days in August: 14 days
The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is January (6.2 days).
Average snowfall in August
Fortuna, MO
- Average snowfall in August: 0"
The month with the highest snowfall is February (3.46").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Fortuna, MO
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (6.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Fortuna, 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 month with the most sunshine is June (Average sunshine: 10h and 36min).
The months with the least sunshine are January and February (Average sunshine: 4h and 54min).
Average sunshine days in August
Fortuna, MO
- Average sunshine days in August: 14.2 days
The month with the most sunshine days is December (20.3 days).
The month with the least sunshine days is May (10.9 days).
Average UV index in August
Fortuna, 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
Fortuna, MO
- Average cloud cover in August: 27
The month with the most cloud cover is February (Cloud cover 48).
The months with the least cloud cover are June and August (Cloud cover 27).
Average visibility in August
Fortuna, 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).
Fortuna, Missouri, USA
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