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 shift from August to September includes a minor decrease in the average high-temperature, lightly dropping from a warm 74.7°F (23.7°C) to a comfortable 65.8°F (18.8°C). September witnesses an average nighttime temperature of 47.1°F (8.4°C).Humidity
In McKinley, the average relative humidity in September is 78%.Rainfall
In McKinley, in September, during 13.4 rainfall days, 1.93" (49mm) of precipitation is typically accumulated. Throughout the year, there are 115.7 rainfall days, and 21.18" (538mm) of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall. September is the first month it typically snows. Throughout September, in the average 0.2 snowfall days, it receives 0.04" (1mm) of snow. Throughout the year, there are 98.5 snowfall days, and 41.54" (1055mm) of snow is accumulated.Daylight
In McKinley, Minnesota, the average length of the day in September is 12h and 33min.On the first day of September, sunrise is at 6:29 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 6:50 pm CDT.
Sunshine
In McKinley, the average sunshine in September is 7.8h.UV index
In September, the average daily maximum UV index is 3. 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: An average UV index of 3 in September transforms into this advice:
Heed the precautions - It is counselled to guard against solar damage. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What is the average humidity in September?
How many days does it rain in September?
When does it start to snow?
How many hours of daylight does McKinley have in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
McKinley, MN
- Average high temperature in September: 65.8°F
The warmest month (with the highest average high temperature) is July (76.6°F).
The month with the lowest average high temperature is January (14.4°F).
- Average low temperature in September: 47.1°F
The month with the highest average low temperature is July (55.9°F).
The coldest month (with the lowest average low temperature) is January (-0.4°F).
Average pressure in September
McKinley, MN
- Average pressure in September: 29.98"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
McKinley, MN
- Average wind speed in September: 8.2mph
The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest month (with the lowest average wind speed) is August (7.1mph).
Average humidity in September
McKinley, MN
- Average humidity in September: 78%
The months with the highest relative humidity are January and February (93%).
The month with the lowest relative humidity is May (72%).
Average rainfall in September
McKinley, MN
- Average rainfall in September: 1.93"
The wettest month (with the highest rainfall) is July (2.64").
The driest month (with the least rainfall) is February (0.79").
Average rainfall days in September
McKinley, MN
- Average rainfall days in September: 13.4 days
The month with the highest number of rainy days is June (16.9 days).
The month with the least rainy days is February (1.1 days).
Average snowfall in September
McKinley, MN
- Average snowfall in September: 0.04"
The month with the highest snowfall is December (8.23").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
McKinley, MN
- Average snowfall days in September: 0.2 days
The month with the highest number of snowfall days is January (19.6 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
McKinley, MN
- Average daylight in September: 12h and 3min
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 5min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The months with the least sunshine are January and February (Average sunshine: 2h and 0min).
Average sunshine days in September
McKinley, MN
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is September (14.5 days).
The month with the least sunshine days is June (10.6 days).
Average UV index in September
McKinley, MN
- Average UV index in September: 3
The months with the highest UV index are July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in September
McKinley, MN
- Average cloud cover in September: 44
The month with the most cloud cover is January (Cloud cover 81).
The month with the least cloud cover is July (Cloud cover 37).
Average visibility in September
McKinley, 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, March and December (4mi).
McKinley, Minnesota, USA
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