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
As September arrives, Grand Island's weather displays a minor decrease in high-temperatures, transitioning from August's 85.1°F to a still warm 78.3°F. Throughout September nights, a significant departure from daytime temperatures, with an average low of 56.7°F, is recognized.Humidity
In September, the average relative humidity is 66%.Rainfall
In September, in Grand Island, the rain falls for 10.7 days. Throughout September, 1.34" of precipitation is accumulated. Throughout the year, there are 109.5 rainfall days, and 19.37" of precipitation is accumulated.Snowfall
In Grand Island, snow does not fall in June through September.Daylight
In September, the average length of the day in Grand Island, Nebraska, is 12h and 27min.On the first day of the month, sunrise is at 7:00 am and sunset at 8:06 pm. On the last day of September, sunrise is at 7:28 am and sunset at 7:17 pm CDT.
Sunshine
In Grand Island, the average sunshine in September is 8.6h.UV index
The average daily maximum UV index in September in Grand Island 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 ordinary individuals.Note: The maximum daily UV index of 5 during September translates into the following directions:
Make use of precautions - It is urged to ward off sun damage. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
FAQ
What are the temperatures in Grand Island in September?
What is the average humidity in September in Grand Island?
How much does it rain in Grand Island in September?
When it does not snow in Grand Island?
Does it snow in Grand Island in September?
What is the average length of the day in September in Grand Island?
When are sunrise and sunset in September in Grand Island?
How long on average sun shines in September in Grand Island?
What is the UV index intensity in September in Grand Island?
Average temperature in September
Grand Island, NE
- Average high temperature in September: 78.3°F
The warmest month (with the highest average high temperature) is July (86.7°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in September: 56.7°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (19°F).
Average pressure in September
Grand Island, NE
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in September
Grand Island, NE
- Average wind speed in September: 9.5mph
The windiest month (with the highest average wind speed) is April (11.6mph).
The calmest month (with the lowest average wind speed) is July (8mph).
Average humidity in September
Grand Island, NE
- Average humidity in September: 66%
The month with the highest relative humidity is January (78%).
The month with the lowest relative humidity is October (61%).
Average rainfall in September
Grand Island, NE
- Average rainfall in September: 1.34"
The wettest month (with the highest rainfall) is May (3.27").
The driest month (with the least rainfall) is January (0.51").
Average rainfall days in September
Grand Island, NE
- Average rainfall days in September: 10.7 days
The month with the highest number of rainy days is May (15 days).
The month with the least rainy days is February (1.7 days).
Average snowfall in September
Grand Island, NE
- Average snowfall in September: 0"
The month with the highest snowfall is December (3.23").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Grand Island, NE
- 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
Grand Island, NE
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in September
Grand Island, NE
- Average sunshine days in September: 17.2 days
The month with the most sunshine days is November (22.9 days).
The month with the least sunshine days is June (13.6 days).
Average UV index in September
Grand Island, NE
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Grand Island, NE
- Average cloud cover in September: 27
The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is July (Cloud cover 26).
Average visibility in September
Grand Island, NE
- 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).
Grand Island, Nebraska, USA
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