August weather forecastJamestown, OK
August
Weather in August
August, the last month of the summer in Jamestown, is another tropical month, with an average temperature ranging between min 69.1°F (20.6°C) and max 89.2°F (31.8°C).Temperature
The shift into August reveals an average high-temperature of a still hot 89.2°F (31.8°C), closely mirroring July's climate. Jamestown's nighttime temperature in August falls to an average of 69.1°F (20.6°C).Heat index
In August, the heat index is evaluated at a blisteringly hot 104°F (40°C). Ensure extra safety measures, heat exhaustion and heat cramps are likely. Continuous activity might result in heatstroke.Heat index specifics point out values are for conditions of shade and a slight breeze. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is found by incorporating humidity levels into the air temperature measurement. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are especially crucial for babies and toddlers. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.
Perspiration is essential for the human body; it facilitates cooling through the process of sweat evaporation. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.
Humidity
In Jamestown, the average relative humidity in August is 70%.Rainfall
In Jamestown, in August, it is raining for 13.1 days, with typically 2.99" (76mm) of accumulated precipitation. Throughout the year, in Jamestown, there are 125.4 rainfall days, and 23.19" (589mm) of precipitation is accumulated.Snowfall
In Jamestown, snow does not fall in April through October.Daylight
In August, the average length of the day is 13h and 31min.On the first day of the month, sunrise is at 6:29 am and sunset at 8:28 pm. On the last day of August, sunrise is at 6:53 am and sunset at 7:51 pm CDT.
Sunshine
In August, the average sunshine is 10.6h.UV index
In Jamestown, the average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the average person.Note: In August, a regular UV index of 6 translates into these guidelines:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Jamestown, OK
- Average high temperature in August: 89.2°F
The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (45°F).
- Average low temperature in August: 69.1°F
The month with the highest average low temperature is July (71.4°F).
The coldest month (with the lowest average low temperature) is January (29.7°F).
Average pressure in August
Jamestown, OK
- Average pressure in August: 29.95"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in August
Jamestown, OK
- Average wind speed in August: 7.1mph
The windiest month (with the highest average wind speed) is March (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in August
Jamestown, OK
- Average humidity in August: 70%
The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is October (68%).
Average rainfall in August
Jamestown, OK
- Average rainfall in August: 2.99"
The wettest month (with the highest rainfall) is May (4.06").
The driest month (with the least rainfall) is November (0.75").
Average rainfall days in August
Jamestown, OK
- Average rainfall days in August: 13.1 days
The month with the highest number of rainy days is May (14.8 days).
The month with the least rainy days is January (6.2 days).
Average snowfall in August
Jamestown, OK
- Average snowfall in August: 0"
The month with the highest snowfall is February (0.79").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in August
Jamestown, OK
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (2.8 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
Jamestown, OK
- 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 36min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days in August
Jamestown, OK
- Average sunshine days in August: 15.6 days
The month with the most sunshine days is November (21.9 days).
The month with the least sunshine days is May (12.9 days).
Average UV index in August
Jamestown, OK
- Average UV index in August: 6
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in August
Jamestown, OK
- Average cloud cover in August: 23
The month with the most cloud cover is March (Cloud cover 42).
The months with the least cloud cover are July and August (Cloud cover 23).
Average visibility in August
Jamestown, OK
- 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).
