September weather forecastChatfield, MN
September
Weather in September
The first month of the autumn, September, is still a pleasant month in Chatfield, Minnesota, with an average temperature fluctuating between 70.5°F (21.4°C) and 51.8°F (11°C).Temperature
September implies a soft temperature shift, with average high-temperatures reducing from August's warm 76.8°F (24.9°C) to a pleasant 70.5°F (21.4°C). The average low-temperature of 51.8°F (11°C) is witnessed in Chatfield during September.Humidity
In Chatfield, the average relative humidity in September is 80%.Rainfall
In September, the rain falls for 13.2 days. Throughout September, 1.85" (47mm) of precipitation is accumulated. In Chatfield, Minnesota, during the entire year, the rain falls for 137 days and collects up to 24.53" (623mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In Chatfield, the average length of the day in September is 12h and 29min.On the first day of September in Chatfield, sunrise is at 6:33 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 6:50 pm CDT.
Sunshine
In September, the average sunshine in Chatfield is 8.8h.UV index
The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum UV index of 4 during September leads to these instructions:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Chatfield, MN
- Average high temperature in September: 70.5°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (21°F).
- Average low temperature in September: 51.8°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (8.1°F).
Average pressure in September
Chatfield, MN
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Chatfield, MN
- Average wind speed in September: 8.2mph
The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in September
Chatfield, MN
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (90%).
The month with the lowest relative humidity is October (75%).
Average rainfall in September
Chatfield, MN
- Average rainfall in September: 1.85"
The wettest month (with the highest rainfall) is June (4.45").
The driest month (with the least rainfall) is January (0.83").
Average rainfall days in September
Chatfield, MN
- Average rainfall days in September: 13.2 days
The month with the highest number of rainy days is June (18.8 days).
The month with the least rainy days is February (2.7 days).
Average snowfall in September
Chatfield, MN
- Average snowfall in September: 0"
The month with the highest snowfall is February (5.87").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Chatfield, MN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (14.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Chatfield, MN
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 8h and 48min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in September
Chatfield, MN
- Average sunshine days in September: 14.8 days
The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is June (8.6 days).
Average UV index in September
Chatfield, 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
Chatfield, MN
- Average cloud cover in September: 35
The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in September
Chatfield, MN
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March, July and December (5mi).
