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
The transition into September subtly indicates a reduction in the average high-temperature, down to a moderately hot 81.9°F (27.7°C) from August's tropical 89.2°F (31.8°C). Menlo witnesses an average low-temperature of 60.4°F (15.8°C) throughout the month of September.Heat index
For most parts of September, the heat index is calculated to be 82.4°F (28°C). If one sustains activity during exposure, it could lead to a sense of fatigue, with a chance of heat cramps.It is crucial to understand that heat index figures are for shade and gentle wind conditions. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is the result of factoring in humidity to the air temperature, indicating perceived warmth. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
Humidity
The average relative humidity in September is 53%.Rainfall
In Menlo, in September, it is raining for 9.5 days, with typically 1.1" (28mm) of accumulated precipitation. Throughout the year, there are 105.4 rainfall days, and 13.7" (348mm) of precipitation is accumulated.Snowfall
In Menlo, snow does not fall in May through September.Daylight
The average length of the day in September is 12h and 26min.On the first day of September, sunrise is at 7:12 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 7:26 pm CDT.
Sunshine
In September, the average sunshine is 9.2h.UV index
In Menlo, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The daily maximum UV index of 5 in September interprets into the following advice:
Heed the precautions - Suggestions to avoid sunburn are made. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. 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
What are the temperatures in September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Menlo have in September?
What is the UV index reading in September?
Average temperature in September
Menlo, KS
- Average high temperature in September: 81.9°F
The warmest month (with the highest average high temperature) is July (92.5°F).
The month with the lowest average high temperature is December (41.9°F).
- Average low temperature in September: 60.4°F
The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).
Average pressure in September
Menlo, KS
- Average pressure in September: 29.94"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.81"Hg).
Average wind speed in September
Menlo, KS
- Average wind speed in September: 11.2mph
The windiest month (with the highest average wind speed) is April (12.9mph).
The calmest month (with the lowest average wind speed) is August (10.1mph).
Average humidity in September
Menlo, KS
- Average humidity in September: 53%
The months with the highest relative humidity are January and December (63%).
The month with the lowest relative humidity is July (50%).
Average rainfall in September
Menlo, KS
- Average rainfall in September: 1.1"
The wettest month (with the highest rainfall) is May (2.36").
The driest months (with the least rainfall) are January and November (0.39").
Average rainfall days in September
Menlo, KS
- Average rainfall days in September: 9.5 days
The month with the highest number of rainy days is May (13.4 days).
The month with the least rainy days is November (4 days).
Average snowfall in September
Menlo, KS
- Average snowfall in September: 0"
The month with the highest snowfall is December (1.06").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Menlo, KS
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.9 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
Menlo, KS
- Average daylight in September: 12h and 2min
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 September: 9h and 1min
The months with the most sunshine are June and July (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).
Average sunshine days in September
Menlo, KS
- Average sunshine days in September: 18 days
The month with the most sunshine days is December (23.7 days).
The months with the least sunshine days are June and July (14.7 days).
Average UV index in September
Menlo, KS
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Menlo, KS
- Average cloud cover in September: 19
The months with the most cloud cover are February and April (Cloud cover 31).
The month with the least cloud cover is June (Cloud cover 17).
Average visibility in September
Menlo, 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).
Menlo, Kansas, USA
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