Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September ushers in a minute temperature change, with average high-temperatures reducing from August's hot 91.4°F (33°C) to a moderately hot 84.4°F (29.1°C). Rolla in September observes a sharp transition from the daytime heat, falling to an average low of 62.8°F (17.1°C).Heat index
In September, the average heat index is evaluated at a hot 86°F (30°C). Persisting in activity during exposure could lead to weariness and subsequently to heat cramps.Data suggests that the heat index is set for environments in shade and with a light wind. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', blends air temperature and moisture content to represent the felt temperature to humans. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly critical to 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.
Humidity
The average relative humidity in September in Rolla is 51%.Rainfall
In Rolla, Kansas, in September, during 9.9 rainfall days, 1.02" (26mm) of precipitation is typically accumulated. In Rolla, Kansas, during the entire year, the rain falls for 97.1 days and collects up to 14.25" (362mm) of precipitation.Snowfall
May through September are months without snowfall in Rolla.Daylight
In September, the average length of the day in Rolla is 12h and 25min.On the first day of the month, sunrise is at 7:17 am and sunset at 8:14 pm. On the last day of September, sunrise is at 7:41 am and sunset at 7:30 pm CDT.
Sunshine
The average sunshine in September in Rolla is 9.3h.UV index
In Rolla, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: An average maximum UV index of 5 in September leads to these recommendations:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. The solar radiation around mid-day is intense; avoid the Sun and stay safe. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Frequently asked questions
How hot does it get in Rolla in September?
What is the average humidity in September in Rolla?
How many days does it rain in September in Rolla?
When it does not snow in Rolla?
Does it snow in Rolla in September?
What is the average length of the day in September in Rolla?
When are sunrise and sunset in September in Rolla?
How many hours of sunshine does Rolla have in September?
What is the UV index reading in September in Rolla?
Average temperature in September
Rolla, KS
- Average high temperature in September: 84.4°F
The warmest month (with the highest average high temperature) is July (94.1°F).
The month with the lowest average high temperature is December (46.4°F).
- Average low temperature in September: 62.8°F
The month with the highest average low temperature is July (71.6°F).
The coldest month (with the lowest average low temperature) is December (28°F).
Average pressure in September
Rolla, KS
- Average pressure in September: 29.94"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.81"Hg).
Average wind speed in September
Rolla, KS
- Average wind speed in September: 11.7mph
The windiest month (with the highest average wind speed) is April (13mph).
The calmest months (with the lowest average wind speed) are January and August (10.4mph).
Average humidity in September
Rolla, KS
- Average humidity in September: 51%
The month with the highest relative humidity is December (58%).
The month with the lowest relative humidity is June (45%).
Average rainfall in September
Rolla, KS
- Average rainfall in September: 1.02"
The wettest month (with the highest rainfall) is June (2.17").
The driest month (with the least rainfall) is November (0.31").
Average rainfall days in September
Rolla, KS
- Average rainfall days in September: 9.9 days
The month with the highest number of rainy days is July (14.9 days).
The month with the least rainy days is November (2.4 days).
Average snowfall in September
Rolla, KS
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.38").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Rolla, KS
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Rolla, KS
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 9h and 2min
The month with the most sunshine is June (Average sunshine: 11h and 42min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).
Average sunshine days in September
Rolla, KS
- Average sunshine days in September: 16 days
The month with the most sunshine days is November (26.1 days).
The month with the least sunshine days is July (10.8 days).
Average UV index in September
Rolla, KS
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in September
Rolla, KS
- Average cloud cover in September: 18
The month with the most cloud cover is February (Cloud cover 27).
The month with the least cloud cover is June (Cloud cover 15).
Average visibility in September
Rolla, KS
- Average visibility in September: 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).
Rolla, Kansas, USA
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