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 onset of September brings a small shift in high-temperatures, falling from 84.6°F (29.2°C) in August to a still moderately hot 77.2°F (25.1°C). The average low-temperature reading in September for Westerville reflects a significant fall from the daytime highs, stabilizing at a fresh 55.2°F (12.9°C).Humidity
In September, the average relative humidity is 62%.Rainfall
In Westerville, in September, it is raining for 8.4 days, with typically 0.67" (17mm) of accumulated precipitation. Throughout the year, there are 93.8 rainfall days, and 15.75" (400mm) of precipitation is accumulated.Snowfall
In Westerville, Nebraska, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 28min.On the first day of September in Westerville, Nebraska, sunrise is at 7:04 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 7:20 pm CDT.
Sunshine
In Westerville, the average sunshine in September is 8.9h.UV index
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 rays for ordinary individuals.Note: The UV index of 5 in September translates into these instructions:
Make use of precautions - It is urged to ward off sun damage. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Frequently asked questions
What is the usual temperature for Westerville in September?
What is the average humidity in September in Westerville?
How many days does it rain in September in Westerville?
When it does not snow in Westerville?
Does it snow in Westerville in September?
What is the average length of the day in September in Westerville?
When are sunrise and sunset in September in Westerville?
How many hours of sunshine does Westerville have in September?
How high is the UV index in September in Westerville?
Average temperature in September
Westerville, NE
- Average high temperature in September: 77.2°F
The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (33.8°F).
- Average low temperature in September: 55.2°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in September
Westerville, NE
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in September
Westerville, NE
- Average wind speed in September: 10.1mph
The windiest month (with the highest average wind speed) is April (12.1mph).
The calmest month (with the lowest average wind speed) is July (8.9mph).
Average humidity in September
Westerville, NE
- Average humidity in September: 62%
The month with the highest relative humidity is January (77%).
The month with the lowest relative humidity is October (60%).
Average rainfall in September
Westerville, NE
- Average rainfall in September: 0.67"
The wettest month (with the highest rainfall) is May (2.32").
The driest month (with the least rainfall) is January (0.51").
Average rainfall days in September
Westerville, NE
- Average rainfall days in September: 8.4 days
The month with the highest number of rainy days is May (13.5 days).
The month with the least rainy days is December (3.7 days).
Average snowfall in September
Westerville, NE
- Average snowfall in September: 0"
The months with the highest snowfall are February and December (3.62").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Westerville, NE
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Westerville, 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 12min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 36min).
Average sunshine days in September
Westerville, NE
- Average sunshine days in September: 20.1 days
The month with the most sunshine days is October (23 days).
The month with the least sunshine days is April (14.6 days).
Average UV index in September
Westerville, 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
Westerville, NE
- Average cloud cover in September: 23
The months with the most cloud cover are January and February (Cloud cover 41).
The months with the least cloud cover are July and September (Cloud cover 23).
Average visibility in September
Westerville, 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).
Westerville, Nebraska, USA
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