September weather forecastHolyoke, MN
September
Weather in September
The first month of the autumn, September, is also an enjoyable month in Holyoke, Minnesota, with an average temperature varying between 67.8°F (19.9°C) and 48.6°F (9.2°C).Temperature
The onset of September entails a temperature shift, as the average high-temperature decreases from a moderately hot 76.8°F (24.9°C) in August to a comfortable 67.8°F (19.9°C). An average minimum temperature of 48.6°F (9.2°C) is recorded during the month of September.Humidity
In Holyoke, the average relative humidity in September is 77%.Rainfall
In Holyoke, in September, it is raining for 12.7 days, with typically 1.81" (46mm) of accumulated precipitation. In Holyoke, during the entire year, the rain falls for 120.8 days and collects up to 22.87" (581mm) of precipitation.Snowfall
In Holyoke, snow does not fall in June through September.Daylight
In September, the average length of the day in Holyoke is 12h and 32min.On the first day of September, sunrise is at 6:30 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 6:50 pm CDT.
Sunshine
In Holyoke, the average sunshine in September is 8h.UV index
In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: The UV index of 4 during September translates into the following guidance:
Be vigilant - A duty to shield skin and eyes from injury exists. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Holyoke, MN
- Average high temperature in September: 67.8°F
The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (16.2°F).
- Average low temperature in September: 48.6°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 (2.5°F).
Average pressure in September
Holyoke, MN
- Average pressure in September: 29.99"Hg
The month with the highest atmospheric pressure is February (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Holyoke, MN
- Average wind speed in September: 7.7mph
The windiest month (with the highest average wind speed) is April (8.9mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in September
Holyoke, MN
- Average humidity in September: 77%
The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is May (72%).
Average rainfall in September
Holyoke, MN
- Average rainfall in September: 1.81"
The wettest month (with the highest rainfall) is July (3.19").
The driest month (with the least rainfall) is January (0.71").
Average rainfall days in September
Holyoke, MN
- Average rainfall days in September: 12.7 days
The month with the highest number of rainy days is June (16.3 days).
The month with the least rainy days is January (2.4 days).
Average snowfall in September
Holyoke, MN
- Average snowfall in September: 0"
The month with the highest snowfall is December (7.6").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Holyoke, MN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (17.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Holyoke, MN
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in September: 8h and 0min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 2h and 30min).
Average sunshine days in September
Holyoke, MN
- Average sunshine days in September: 14.9 days
The month with the most sunshine days is October (15.3 days).
The month with the least sunshine days is June (11.4 days).
Average UV index in September
Holyoke, 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, November and December (UV index 1).
Average cloud cover in September
Holyoke, MN
- Average cloud cover in September: 42
The month with the most cloud cover is January (Cloud cover 74).
The month with the least cloud cover is July (Cloud cover 35).
Average visibility in September
Holyoke, MN
- Average visibility in September: 5mi
The months with the highest visibility are May, June, July and October (6mi).
The months with the lowest visibility are January, February and December (4mi).
