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
A minor decrease in the average high-temperature is observed during September, shifting from a warm 76.6°F (24.8°C) in August to an agreeable 70.9°F (21.6°C). September nights in Byron are marked by an average low-temperature of 51.8°F (11°C).Humidity
In September, the average relative humidity is 79%.Rainfall
In Byron, in September, it is raining for 12.5 days, with typically 2.17" (55mm) of accumulated precipitation. In Byron, during the entire year, the rain falls for 144.2 days and collects up to 28.98" (736mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In Byron, the average length of the day in September is 12h and 30min.On the first day of September, sunrise is at 6:34 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 6:52 pm CDT.
Sunshine
The average sunshine in September is 8.6h.UV index
In Byron, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 4 during September translates into the following guidance:
Take necessary precautions - Suggestions to elude sunburn are provided. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
Does it snow in Byron in September?
How many hours of daylight does Byron have in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Byron, 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 (20.8°F).
- Average low temperature in September: 51.8°F
The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (7.5°F).
Average pressure in September
Byron, 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
Byron, MN
- Average wind speed in September: 8.5mph
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 (7.4mph).
Average humidity in September
Byron, MN
- Average humidity in September: 79%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is October (74%).
Average rainfall in September
Byron, MN
- Average rainfall in September: 2.17"
The wettest month (with the highest rainfall) is June (5").
The driest month (with the least rainfall) is January (1.02").
Average rainfall days in September
Byron, MN
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is June (19.5 days).
The month with the least rainy days is February (3.8 days).
Average snowfall in September
Byron, MN
- Average snowfall in September: 0"
The month with the highest snowfall is February (8.23").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Byron, MN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (17.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Byron, 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: 8h and 4min
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 6min).
Average sunshine days in September
Byron, MN
- Average sunshine days in September: 14.7 days
The month with the most sunshine days is November (15.3 days).
The month with the least sunshine days is June (7.8 days).
Average UV index in September
Byron, 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
Byron, MN
- Average cloud cover in September: 35
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
Byron, MN
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
Byron, Minnesota, USA
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