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
In Millville, entering September brings a subtle temperature decrement, reducing from August's moderately hot 79.7°F to a still warm 74.3°F. An average nighttime temperature of 68°F marks September.Humidity
The average relative humidity in September in Millville, Delaware, is 78%.Rainfall
In Millville, during September, the rain falls for 12.9 days and regularly aggregates up to 1.85" of precipitation. In Millville, Delaware, during the entire year, the rain falls for 144.6 days and collects up to 25.51" of precipitation.Snowfall
In Millville, snow does not fall in April through October.Daylight
The average length of the day in September in Millville is 12h and 25min.On the first day of September in Millville, Delaware, sunrise is at 6:29 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 6:45 pm EDT.
Sunshine
In September, the average sunshine is 9.3h.UV index
In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: An average UV index of 5 in September transforms into this advice:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
FAQ
What are September temperatures in Millville?
What is the average humidity in September in Millville?
How much does it rain in Millville in September?
When it does not snow in Millville?
How many hours of daylight does Millville have in September?
When are sunrise and sunset in September in Millville?
How many hours of sunshine does Millville have in September?
How high is the UV index in September in Millville?
Average temperature in September
Millville, DE
- Average high temperature in September: 74.3°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (42.1°F).
- Average low temperature in September: 68°F
The month with the highest average low temperature is July (73.4°F).
The coldest month (with the lowest average low temperature) is January (32.9°F).
Average pressure in September
Millville, DE
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Millville, DE
- Average wind speed in September: 10.6mph
The windiest month (with the highest average wind speed) is January (12.8mph).
The calmest month (with the lowest average wind speed) is August (8.7mph).
Average humidity in September
Millville, DE
- Average humidity in September: 78%
The month with the highest relative humidity is May (82%).
The months with the lowest relative humidity are January and November (74%).
Average rainfall in September
Millville, DE
- Average rainfall in September: 1.85"
The wettest months (with the highest rainfall) are July and August (2.87").
The driest month (with the least rainfall) is January (1.5").
Average rainfall days in September
Millville, DE
- Average rainfall days in September: 12.9 days
The month with the highest number of rainy days is July (15.3 days).
The month with the least rainy days is January (7.4 days).
Average snowfall in September
Millville, DE
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.87").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Millville, DE
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (2.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Millville, DE
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 9h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The months with the least sunshine are February and December (Average sunshine: 5h and 6min).
Average sunshine days in September
Millville, DE
- Average sunshine days in September: 14.7 days
The month with the most sunshine days is January (19.7 days).
The month with the least sunshine days is July (12.9 days).
Average UV index in September
Millville, DE
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in September
Millville, DE
- Average cloud cover in September: 32
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 26).
Average visibility in September
Millville, DE
- 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).
Millville, Delaware, USA
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