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 start of September comes with a small reduction in the average high-temperature, subtly receding from a warm 78.4°F (25.8°C) in August to an agreeable 70.9°F (21.6°C). Atwater, in the month of September, anticipates a consistent average low-temperature of 51.6°F (10.9°C).Humidity
In September, the average relative humidity is 74%.Rainfall
In September, in Atwater, the rain falls for 10.2 days. Throughout September, 0.91" (23mm) of precipitation is accumulated. In Atwater, during the entire year, the rain falls for 99.1 days and collects up to 11.89" (302mm) of precipitation.Snowfall
June through September are months without snowfall in Atwater.Daylight
In Atwater, the average length of the day in September is 12h and 31min.On the first day of September in Atwater, Minnesota, sunrise is at 6:41 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 7:00 pm CDT.
Sunshine
In Atwater, the average sunshine in September is 8.8h.UV index
The average daily maximum UV index in September in Atwater is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 4 in September interprets into the following recommendations:
Undertake precautions - Guarding against sun damage is counselled. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Frequently asked questions
What is the average September temperature in Atwater?
What is the average humidity in September in Atwater?
How much does it rain in Atwater in September?
When it does not snow in Atwater?
Does it snow in Atwater in September?
How many hours of daylight does Atwater have in September?
What time are sunrise and sunset in September in Atwater?
How long on average sun shines in September in Atwater?
What is the UV index intensity in September in Atwater?
Average temperature in September
Atwater, MN
- Average high temperature in September: 70.9°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (19.2°F).
- Average low temperature in September: 51.6°F
The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (5.7°F).
Average pressure in September
Atwater, MN
- Average pressure in September: 29.99"Hg
The months with the highest atmospheric pressure are January and February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in September
Atwater, MN
- Average wind speed in September: 8.3mph
The windiest month (with the highest average wind speed) is April (9.6mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in September
Atwater, MN
- Average humidity in September: 74%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is May (69%).
Average rainfall in September
Atwater, MN
- Average rainfall in September: 0.91"
The wettest month (with the highest rainfall) is June (2.01").
The driest month (with the least rainfall) is January (0.28").
Average rainfall days in September
Atwater, MN
- Average rainfall days in September: 10.2 days
The month with the highest number of rainy days is June (14.5 days).
The month with the least rainy days is January (1.5 days).
Average snowfall in September
Atwater, MN
- Average snowfall in September: 0"
The month with the highest snowfall is March (2.17").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Atwater, MN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (10.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Atwater, 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 5min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in September
Atwater, MN
- Average sunshine days in September: 17.8 days
The month with the most sunshine days is January (21.6 days).
The month with the least sunshine days is June (13.3 days).
Average UV index in September
Atwater, 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, February, November and December (UV index 1).
Average cloud cover in September
Atwater, MN
- Average cloud cover in September: 33
The month with the most cloud cover is January (Cloud cover 65).
The months with the least cloud cover are July and August (Cloud cover 32).
Average visibility in September
Atwater, MN
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
Atwater, Minnesota, USA
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