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Weather in September in Alpena, Michigan

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< September >
 
Normal Max/ High Temperature 20°C (68°F)
 
Average Temperature 14°C (57°F)
 
Min/ Low Temperature 8°C (46°F)
 
Normal Precipitation 79mm (3.1in)
Number of Wet Days (probability of rain on a day) 12 (40%)
Average Sunlight per day 06:29
Average Daylight per day 12:28
Sunny (Cloudy) Daylight Hours 53% (47%)
Sun altitude at solar noon on the 21st day.
45.5°


  • The average temperature in Alpena, Michigan in September is mild at 14.1 °C (57.38 °F).
  • Afternoons can be warm with average high temperatures reaching 20.2 °C (68.4 °F).
  • Overnight temperatures are generally a little cool with an average low of 7.9 °C (46.2 °F).
  • In September there is a range/ variation of daily average temperatures of 12.3 °C (22.1 °F).
  • The weather in September is somewhat dry with rain occasionally. Just 79mm (3.1in) of fluid is transfered during on average 12 days.
  • The skies in Alpena, Michigan are reasonably fine having on balance a detectable 6:29 of blazing sunshine per day.
  • The shortest day is 11:42 long and the longest day is 13:15 long with an average length of 12:28.
  • There are approximately 5:48 per day when bright sunshine is absent due to cloud, haze or the sun being too low on the horizon to register.
  • It is sunny approximately 52.8% of daylight hours and cloudy 47.2% of daylight hours.

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Weather Trend Graph for September in Alpena, Michigan, Usa

Graph of weather in Alpena, Michigan in September

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