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
September is marked by a subtle drop in average high-temperatures, transitioning from a warm 78.3°F (25.7°C) in August to a pleasant 70.3°F (21.3°C). Saint Rosa experiences a steady low-temperature of 50.7°F (10.4°C) throughout September.Humidity
In September, the average relative humidity is 73%.Rainfall
In September, the rain falls for 10.2 days. Throughout September, 1.3" (33mm) of precipitation is accumulated. Throughout the year, in Saint Rosa, there are 107.6 rainfall days, and 16.3" (414mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 31min.On the first day of September, sunrise is at 6:40 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 7:00 pm CDT.
Sunshine
In September, the average sunshine is 8.9h.UV index
In Saint Rosa, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: A maximum high daily UV index of 4 during September translates into the following directions:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Saint Rosa have in September?
What is the UV index intensity in September?
Average temperature in September
Saint Rosa, MN
- Average high temperature in September: 70.3°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 (18°F).
- Average low temperature in September: 50.7°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (4.8°F).
Average pressure in September
Saint Rosa, MN
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is February (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in September
Saint Rosa, MN
- Average wind speed in September: 8.4mph
The windiest month (with the highest average wind speed) is April (9.5mph).
The calmest months (with the lowest average wind speed) are July and August (7.3mph).
Average humidity in September
Saint Rosa, MN
- Average humidity in September: 73%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is May (70%).
Average rainfall in September
Saint Rosa, MN
- Average rainfall in September: 1.3"
The wettest month (with the highest rainfall) is June (2.95").
The driest months (with the least rainfall) are January and February (0.35").
Average rainfall days in September
Saint Rosa, MN
- Average rainfall days in September: 10.2 days
The month with the highest number of rainy days is June (14.9 days).
The month with the least rainy days is February (2.1 days).
Average snowfall in September
Saint Rosa, MN
- Average snowfall in September: 0"
The month with the highest snowfall is December (3.78").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Saint Rosa, MN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (13.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Saint Rosa, 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 18min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in September
Saint Rosa, MN
- Average sunshine days in September: 18.8 days
The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is June (12.7 days).
Average UV index in September
Saint Rosa, 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
Saint Rosa, MN
- Average cloud cover in September: 33
The month with the most cloud cover is January (Cloud cover 67).
The months with the least cloud cover are July and August (Cloud cover 31).
Average visibility in September
Saint Rosa, 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).
Saint Rosa, Minnesota, USA
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