September weather forecastPennington, MN
September
Weather in September
The first month of the autumn, September, is still a refreshing month in Pennington, Minnesota, with temperature in the range of an average low of 47.7°F (8.7°C) and an average high of 67.3°F (19.6°C).Temperature
Pennington's September weather comes with a decrease in average high-temperatures, moving from a moderately hot 76.6°F (24.8°C) in August to a comfortable 67.3°F (19.6°C). Pennington's nighttime temperature in September drops to an average of 47.7°F (8.7°C).Humidity
The average relative humidity in September is 74%.Rainfall
In Pennington, during September, the rain falls for 9.1 days and regularly aggregates up to 0.91" (23mm) of precipitation. Throughout the year, there are 86.8 rainfall days, and 10.71" (272mm) of precipitation is accumulated.Snowfall
In Pennington, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 33min.On the first day of September, sunrise is at 6:37 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 6:58 pm CDT.
Sunshine
In September, the average sunshine is 7.9h.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 the ordinary person.Note: An average maximum UV index of 4 in September leads to these recommendations:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Pennington, MN
- Average high temperature in September: 67.3°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (16°F).
- Average low temperature in September: 47.7°F
The month with the highest average low temperature is July (57.6°F).
The coldest month (with the lowest average low temperature) is January (1.4°F).
Average pressure in September
Pennington, MN
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in September
Pennington, MN
- Average wind speed in September: 7.3mph
The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in September
Pennington, MN
- Average humidity in September: 74%
The months with the highest relative humidity are January and February (93%).
The month with the lowest relative humidity is May (69%).
Average rainfall in September
Pennington, MN
- Average rainfall in September: 0.91"
The wettest month (with the highest rainfall) is June (2.01").
The driest months (with the least rainfall) are January and February (0.31").
Average rainfall days in September
Pennington, MN
- Average rainfall days in September: 9.1 days
The month with the highest number of rainy days is June (12.8 days).
The month with the least rainy days is February (0.6 days).
Average snowfall in September
Pennington, MN
- Average snowfall in September: 0"
The month with the highest snowfall is December (2.8").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Pennington, MN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (15.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Pennington, MN
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in September: 7h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 1h and 54min).
Average sunshine days in September
Pennington, MN
- Average sunshine days in September: 19.4 days
The month with the most sunshine days is January (20.1 days).
The month with the least sunshine days is June (14 days).
Average UV index in September
Pennington, 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
Pennington, MN
- Average cloud cover in September: 41
The month with the most cloud cover is January (Cloud cover 81).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in September
Pennington, MN
- Average visibility in September: 6mi
The months with the highest visibility are May, June and September (6mi).
The months with the lowest visibility are January, February, March and December (4mi).
