September weather forecastSacred Heart, MN
September
Weather in September
September, the first month of the autumn in Sacred Heart, is also an agreeable month, with an average temperature fluctuating between 72.9°F (22.7°C) and 52.9°F (11.6°C).Temperature
The move into September indicates a slight reduction in the average high-temperature, down from August's warm 79.5°F (26.4°C) to a pleasant 72.9°F (22.7°C). In Sacred Heart, the expected average low-temperature for September is a cool 52.9°F (11.6°C).Humidity
The average relative humidity in September is 70%.Rainfall
In Sacred Heart, during September, the rain falls for 9.4 days and regularly aggregates up to 1.18" (30mm) of precipitation. In Sacred Heart, during the entire year, the rain falls for 101.9 days and collects up to 15.12" (384mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In Sacred Heart, the average length of the day in September is 12h and 31min.On the first day of the month, sunrise is at 6:44 am and sunset at 7:57 pm. On the last day of September, sunrise is at 7:19 am and sunset at 7:03 pm CDT.
Sunshine
In Sacred Heart, the average sunshine in September is 9.1h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 4 in September interprets into the following recommendations:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sacred Heart, MN
- Average high temperature in September: 72.9°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (20.3°F).
- Average low temperature in September: 52.9°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (6.8°F).
Average pressure in September
Sacred Heart, MN
- Average pressure in September: 29.99"Hg
The month with the highest atmospheric pressure is February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in September
Sacred Heart, MN
- Average wind speed in September: 8.8mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (7.4mph).
Average humidity in September
Sacred Heart, MN
- Average humidity in September: 70%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is May (66%).
Average rainfall in September
Sacred Heart, MN
- Average rainfall in September: 1.18"
The wettest months (with the highest rainfall) are June and July (2.4").
The driest months (with the least rainfall) are January and February (0.47").
Average rainfall days in September
Sacred Heart, MN
- Average rainfall days in September: 9.4 days
The month with the highest number of rainy days is June (15.6 days).
The month with the least rainy days is February (2 days).
Average snowfall in September
Sacred Heart, MN
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.07").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Sacred Heart, MN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Sacred Heart, MN
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in September: 9h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in September
Sacred Heart, MN
- Average sunshine days in September: 18.9 days
The month with the most sunshine days is October (20.8 days).
The month with the least sunshine days is June (12 days).
Average UV index in September
Sacred Heart, 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 November (UV index 1).
Average cloud cover in September
Sacred Heart, MN
- Average cloud cover in September: 29
The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in September
Sacred Heart, MN
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).





