August weather forecastManhattan, KS

August
Weather in August
In August, Manhattan, Kansas, experiences a continuation of the summer heat, only second to July's extreme summer conditions. Daylight duration starts to reduce signaling the eventual end of the hot season. Despite the prevailing heat, late afternoon thunderstorms are not uncommon, bringing temporary relief. Overall, the heat persists with days remaining noticeably longer than nights. The main characteristics of August are sustained high temperatures averaging at a sweltering 87.4°F (30.8°C) and a marginally increased average rainfall of 2.56" (65mm).Temperature
August registers an average high-temperature of a still hot 87.4°F (30.8°C), slightly varied from July's 89.1°F (31.7°C). Manhattan cools down to an average low-temperature of 66.4°F (19.1°C) throughout the month of August.Heat index
In August, the heat index is appraised at a fiery hot 98.6°F (37°C). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', provides an understanding of perceived warmth by combining temperature and relative humidity. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
By perspiring, the human body can shed its excessive warmth since evaporated sweat cools it off. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.
Humidity
The average relative humidity in August is 69%.Rainfall
In Manhattan, during August, the rain falls for 12.7 days and regularly aggregates up to 2.56" (65mm) of precipitation. Throughout the year, there are 120.6 rainfall days, and 21.38" (543mm) of precipitation is accumulated.Snowfall
In Manhattan, snow does not fall in May through September.Daylight
In Manhattan, the average length of the day in August is 13h and 39min.On the first day of the month, sunrise is at 6:27 am and sunset at 8:37 pm. On the last day of August, sunrise is at 6:54 am and sunset at 7:57 pm CDT.
Sunshine
In August, the average sunshine is 10.6h.UV index
In August, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the ordinary person.Note: The daily high UV index of 6 in August translates into this advice:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Manhattan, KS
- Average high temperature in August: 87.4°F
The warmest month (with the highest average high temperature) is July (89.1°F).
The month with the lowest average high temperature is January (38.7°F).
- Average low temperature in August: 66.4°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 (22.8°F).
Average pressure in August
Manhattan, KS
- Average pressure in August: 29.93"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in August
Manhattan, KS
- Average wind speed in August: 8.5mph
The windiest month (with the highest average wind speed) is April (11.7mph).
The calmest month (with the lowest average wind speed) is August (8.5mph).
Average humidity in August
Manhattan, KS
- Average humidity in August: 69%
The month with the highest relative humidity is May (75%).
The month with the lowest relative humidity is October (64%).
Average rainfall in August
Manhattan, KS
- Average rainfall in August: 2.56"
The wettest month (with the highest rainfall) is May (3.9").
The driest month (with the least rainfall) is January (0.59").
Average rainfall days in August
Manhattan, KS
- Average rainfall days in August: 12.7 days
The month with the highest number of rainy days is May (16.2 days).
The month with the least rainy days is January (4.3 days).
Average snowfall in August
Manhattan, KS
- Average snowfall in August: 0"
The month with the highest snowfall is February (1.57").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Manhattan, KS
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (5.2 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
Manhattan, KS
- 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 30min).
- Average sunshine in August: 10h and 36min
The months with the most sunshine are June and July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in August
Manhattan, KS
- Average sunshine days in August: 14.8 days
The month with the most sunshine days is January (22.1 days).
The month with the least sunshine days is May (11.8 days).
Average UV index in August
Manhattan, KS
- 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
Manhattan, KS
- 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 June and August (Cloud cover 23).
Average visibility in August
Manhattan, KS
- 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).





