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's arrival aligns with a minor decrease in average high-temperatures, from August's tropical 89.1°F (31.7°C) to a warm 81°F (27.2°C). The nights of September in Long Island anticipate an average low-temperature of 59.9°F (15.5°C).Heat index
For most parts of September, the heat index is calculated to be 82.4°F (28°C). Enduring exposure and unrelenting activity might cause a state of weariness, potentially leading to heat cramps.Note that heat index values are valued for light wind and location in the shade. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', gives an indication of how one might feel in terms of heat after considering 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. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
Humidity
In Long Island, Kansas, the average relative humidity in September is 59%.Rainfall
In September, in Long Island, the rain falls for 11.1 days. Throughout September, 1.34" (34mm) of precipitation is accumulated. Throughout the year, there are 115.9 rainfall days, and 19.25" (489mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall in Long Island.Daylight
In September, the average length of the day is 12h and 26min.On the first day of the month, sunrise is at 7:06 am and sunset at 8:09 pm. On the last day of September, sunrise is at 7:34 am and sunset at 7:21 pm CDT.
Sunshine
In Long Island, the average sunshine in September is 8.9h.UV index
In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index of 5 in September interprets into the following recommendations:
Heed the precautions - It is counselled to guard against solar damage. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature 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?
How many hours of daylight does Long Island have in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Long Island, KS
- Average high temperature in September: 81°F
The warmest month (with the highest average high temperature) is July (92.1°F).
The month with the lowest average high temperature is January (39.2°F).
- Average low temperature in September: 59.9°F
The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in September
Long Island, KS
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in September
Long Island, KS
- Average wind speed in September: 10.2mph
The windiest month (with the highest average wind speed) is April (11.9mph).
The calmest month (with the lowest average wind speed) is August (9.1mph).
Average humidity in September
Long Island, KS
- Average humidity in September: 59%
The month with the highest relative humidity is January (70%).
The month with the lowest relative humidity is July (56%).
Average rainfall in September
Long Island, KS
- Average rainfall in September: 1.34"
The wettest month (with the highest rainfall) is May (3.35").
The driest month (with the least rainfall) is January (0.59").
Average rainfall days in September
Long Island, KS
- Average rainfall days in September: 11.1 days
The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is February (3.7 days).
Average snowfall in September
Long Island, KS
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.64").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Long Island, KS
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (6.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Long Island, KS
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is June (Average sunshine: 11h and 18min).
The months with the least sunshine are January and December (Average sunshine: 6h and 6min).
Average sunshine days in September
Long Island, KS
- Average sunshine days in September: 15.9 days
The month with the most sunshine days is December (23 days).
The month with the least sunshine days is May (12.2 days).
Average UV index in September
Long Island, 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
Long Island, KS
- Average cloud cover in September: 23
The month with the most cloud cover is February (Cloud cover 36).
The months with the least cloud cover are June and July (Cloud cover 21).
Average visibility in September
Long Island, 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).
Long Island, Kansas, USA
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