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 transition into September is accompanied by a slight temperature decrease, with the average high-temperature shifting from a moderately hot 78.4°F (25.8°C) in August to a pleasant 70.9°F (21.6°C). Vadnais Heights cools down to an average low-temperature of 52.9°F (11.6°C) throughout the month of September.Humidity
The average relative humidity in September is 75%.Rainfall
In Vadnais Heights, Minnesota, in September, it is raining for 11.2 days, with typically 1.85" (47mm) of accumulated precipitation. Throughout the year, there are 117 rainfall days, and 21.57" (548mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall in Vadnais Heights.Daylight
The average length of the day in September is 12h and 31min.On the first day of the month, sunrise is at 6:35 am and sunset at 7:48 pm. On the last day of September, sunrise is at 7:10 am and sunset at 6:53 pm CDT.
Sunshine
The average sunshine in September is 8.7h.UV index
In September, the average daily maximum UV index in Vadnais Heights is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: In September, the maximum UV index of 4 translates into these guidelines:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Vadnais Heights?
What is the average humidity in September in Vadnais Heights?
How much does it rain in Vadnais Heights in September?
When it does not snow in Vadnais Heights?
Does it snow in Vadnais Heights in September?
How many hours of daylight does Vadnais Heights have in September?
What time are sunrise and sunset in September in Vadnais Heights?
How many hours of sunshine does Vadnais Heights have in September?
How high is the UV index in September in Vadnais Heights?
Average temperature in September
Vadnais Heights, MN
- Average high temperature in September: 70.9°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 (19.8°F).
- Average low temperature in September: 52.9°F
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (7.2°F).
Average pressure in September
Vadnais Heights, MN
- Average pressure in September: 30"Hg
The months with the highest atmospheric pressure are January and February (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Vadnais Heights, MN
- Average wind speed in September: 7.6mph
The windiest month (with the highest average wind speed) is April (9.2mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).
Average humidity in September
Vadnais Heights, MN
- Average humidity in September: 75%
The month with the highest relative humidity is January (91%).
The months with the lowest relative humidity are April and May (72%).
Average rainfall in September
Vadnais Heights, MN
- Average rainfall in September: 1.85"
The wettest month (with the highest rainfall) is June (3.74").
The driest month (with the least rainfall) is January (0.59").
Average rainfall days in September
Vadnais Heights, MN
- Average rainfall days in September: 11.2 days
The month with the highest number of rainy days is June (16.5 days).
The months with the least rainy days are January and February (2.2 days).
Average snowfall in September
Vadnais Heights, MN
- Average snowfall in September: 0"
The month with the highest snowfall is December (5").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Vadnais Heights, MN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (14.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Vadnais Heights, MN
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in September
Vadnais Heights, MN
- Average sunshine days in September: 16.9 days
The month with the most sunshine days is December (18.2 days).
The month with the least sunshine days is June (10.6 days).
Average UV index in September
Vadnais Heights, MN
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in September
Vadnais Heights, MN
- Average cloud cover in September: 35
The month with the most cloud cover is January (Cloud cover 69).
The months with the least cloud cover are July and August (Cloud cover 32).
Average visibility in September
Vadnais Heights, MN
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
Vadnais Heights, Minnesota, USA
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