September weather forecastHayfield, MN
September
Weather in September
September, the first month of the autumn in Hayfield, is also an agreeable month, with an average temperature varying between 70.9°F (21.6°C) and 52.3°F (11.3°C).Temperature
The shift from August to September includes a small decrease in the average high-temperature, from a moderately hot 76.6°F (24.8°C) to a pleasant 70.9°F (21.6°C). September nights in Hayfield are marked by an average low-temperature of 52.3°F (11.3°C).Humidity
In September, the average relative humidity is 78%.Rainfall
In Hayfield, in September, during 11.9 rainfall days, 2.01" (51mm) of precipitation is typically accumulated. In Hayfield, during the entire year, the rain falls for 127.4 days and collects up to 24.69" (627mm) of precipitation.Snowfall
In Hayfield, snow does not fall in June through September.Daylight
In Hayfield, the average length of the day in September is 12h and 29min.On the first day of September, sunrise is at 6:35 am and sunset at 7:46 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 6:53 pm CDT.
Sunshine
The average sunshine in September is 8.6h.UV index
In Hayfield, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: In September, an average UV index of 4 transforms into the following instructions:
Take necessary precautions - Suggestions to elude sunburn are provided. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Hayfield, MN
- Average high temperature in September: 70.9°F
The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is January (20.7°F).
- Average low temperature in September: 52.3°F
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (7.5°F).
Average pressure in September
Hayfield, MN
- Average pressure in September: 30.01"Hg
The months with the highest atmospheric pressure are January and February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Hayfield, MN
- Average wind speed in September: 8.6mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (7.5mph).
Average humidity in September
Hayfield, MN
- Average humidity in September: 78%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is October (73%).
Average rainfall in September
Hayfield, MN
- Average rainfall in September: 2.01"
The wettest month (with the highest rainfall) is June (4.53").
The driest month (with the least rainfall) is January (0.71").
Average rainfall days in September
Hayfield, MN
- Average rainfall days in September: 11.9 days
The month with the highest number of rainy days is June (18.6 days).
The month with the least rainy days is February (2.3 days).
Average snowfall in September
Hayfield, MN
- Average snowfall in September: 0"
The month with the highest snowfall is February (5.94").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Hayfield, MN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (11.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Hayfield, 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 36min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in September
Hayfield, MN
- Average sunshine days in September: 15.8 days
The month with the most sunshine days is January (18.9 days).
The month with the least sunshine days is June (9.5 days).
Average UV index in September
Hayfield, 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 February, November and December (UV index 1).
Average cloud cover in September
Hayfield, MN
- Average cloud cover in September: 36
The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
Hayfield, MN
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
