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
The onset of September results in a small decrease in the average high-temperature, moderately receding from a moderately hot 78.4°F (25.8°C) in August to an agreeable 72.5°F (22.5°C). Throughout the September nights, Butterfield encounters a low-temperature of 53.2°F (11.8°C).Humidity
In Butterfield, the average relative humidity in September is 73%.Rainfall
In September, in Butterfield, the rain falls for 10.7 days. Throughout September, 1.65" (42mm) of precipitation is accumulated. In Butterfield, during the entire year, the rain falls for 107.8 days and collects up to 15.87" (403mm) of precipitation.Snowfall
In Butterfield, snow does not fall in June through September.Daylight
In Butterfield, the average length of the day in September is 12h and 29min.On the first day of the month, sunrise is at 6:43 am and sunset at 7:54 pm. On the last day of September, sunrise is at 7:16 am and sunset at 7:01 pm CDT.
Sunshine
In Butterfield, the average sunshine in September is 9h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: In September, the average maximum UV index of 4 translates into the following recommendations:
Preventative actions are necessary - Recommendations to ward off sunburn are given. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Butterfield?
What is the average humidity in September in Butterfield?
How many days does it rain in September in Butterfield?
When it does not snow in Butterfield?
Does it snow in Butterfield in September?
What is the average length of the day in September in Butterfield?
When is the sunrise / sunset in September in Butterfield?
How many hours of sunshine does Butterfield have in September?
How high is the UV index in September in Butterfield?
Average temperature in September
Butterfield, MN
- Average high temperature in September: 72.5°F
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (21°F).
- Average low temperature in September: 53.2°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (8.1°F).
Average pressure in September
Butterfield, MN
- Average pressure in September: 30"Hg
The months with the highest atmospheric pressure are January and February (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in September
Butterfield, MN
- Average wind speed in September: 9mph
The windiest months (with the highest average wind speed) are January and February (10.9mph).
The calmest month (with the lowest average wind speed) is July (7.7mph).
Average humidity in September
Butterfield, MN
- Average humidity in September: 73%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (68%).
Average rainfall in September
Butterfield, MN
- Average rainfall in September: 1.65"
The wettest month (with the highest rainfall) is June (2.52").
The driest month (with the least rainfall) is January (0.39").
Average rainfall days in September
Butterfield, MN
- Average rainfall days in September: 10.7 days
The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is January (1.5 days).
Average snowfall in September
Butterfield, MN
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.46").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Butterfield, MN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (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
Butterfield, MN
- Average daylight in September: 12h and 3min
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: 9h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in September
Butterfield, MN
- Average sunshine days in September: 17.7 days
The month with the most sunshine days is November (21.1 days).
The month with the least sunshine days is June (12.3 days).
Average UV index in September
Butterfield, 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, February and November (UV index 1).
Average cloud cover in September
Butterfield, MN
- Average cloud cover in September: 31
The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are July and September (Cloud cover 31).
Average visibility in September
Butterfield, 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).
Butterfield, Minnesota, USA
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