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 move into September indicates a slight reduction in the average high-temperature, down from August's warm 81.3°F (27.4°C) to a pleasant 73.2°F (22.9°C). Throughout September, Norcross encounters an average temperature drop to a fresh 52.9°F (11.6°C).Humidity
With an average relative humidity of 65%, September is the least humid month.Rainfall
In September, the rain falls for 8.9 days. Throughout September, 1.54" (39mm) of precipitation is accumulated. Throughout the year, there are 102 rainfall days, and 19.17" (487mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September is 12h and 31min.On the first day of September, sunrise is at 6:46 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:06 pm CDT.
Sunshine
The average sunshine in September is 8.9h.UV index
In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. It's recommended to limit sun exposure when its radiation is at its peak during midday. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What is the least humid month?
What is the average humidity in September in Norcross?
How much does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Norcross have in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Norcross, MN
- Average high temperature in September: 73.2°F
The warmest months (with the highest average high temperature) are July and August (81.3°F).
The month with the lowest average high temperature is January (18.7°F).
- Average low temperature in September: 52.9°F
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (4.8°F).
Average pressure in September
Norcross, MN
- Average pressure in September: 29.97"Hg
The months with the highest atmospheric pressure are January and February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in September
Norcross, MN
- Average wind speed in September: 9.3mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is July (8mph).
Average humidity in September
Norcross, MN
- Average humidity in September: 65%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is September (65%).
Average rainfall in September
Norcross, MN
- Average rainfall in September: 1.54"
The wettest months (with the highest rainfall) are June and July (3.03").
The driest month (with the least rainfall) is February (0.55").
Average rainfall days in September
Norcross, MN
- Average rainfall days in September: 8.9 days
The month with the highest number of rainy days is June (15.4 days).
The month with the least rainy days is February (2 days).
Average snowfall in September
Norcross, MN
- Average snowfall in September: 0"
The month with the highest snowfall is December (4.45").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Norcross, MN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Norcross, MN
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in September
Norcross, MN
- Average sunshine days in September: 19.5 days
The month with the most sunshine days is September (19.5 days).
The month with the least sunshine days is June (12.4 days).
Average UV index in September
Norcross, MN
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Norcross, MN
- Average cloud cover in September: 29
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in September
Norcross, MN
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
Norcross, Minnesota, USA
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