October weather forecastAlpena, MI
October
Weather in October
October sees a significant retreat in temperature to 54.5°F (12.5°C), establishing fall in full swing in Alpena. Although the temperature decrease is swift, rainfall reaches its zenith at 1.57" (40mm), making October the wettest month of the year. Simultaneously, cloud cover increases drastically, curbing daylight hours. The nip in the air, coupled with sporadic precipitation, signifies the advent of winter. Regardless, autumn's vivid colors render October's weather a spectacle in Alpena.Temperature
October in Alpena is characterized by a reduction in the average high-temperature, from a comfortable 67.1°F (19.5°C) in September to a fresh 54.5°F (12.5°C). October in Alpena, Michigan, generally records an average low-temperature of 45°F (7.2°C).Humidity
In October, the average relative humidity is 78%.Rainfall
In Alpena, during October, the rain falls for 14.3 days and regularly aggregates up to 1.57" (40mm) of precipitation. In Alpena, Michigan, during the entire year, the rain falls for 119.4 days and collects up to 13.9" (353mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. October is the first month it typically snows. Throughout October, in the average 0.9 snowfall days, it receives 0.04" (1mm) of snow. In Alpena, during the entire year, snow falls for 82.7 days and aggregates up to 14.61" (371mm) of snow.Ocean temperature
In Alpena, Michigan, in October, the average water temperature is 51.8°F (11°C).Note: At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.
Daylight
In October, the average length of the day is 10h and 56min.On the first day of October, sunrise is at 7:32 am and sunset at 7:13 pm. On the last day of the month, sunrise is at 8:11 am and sunset at 6:22 pm EDT.
Sunshine
In Alpena, the average sunshine in October is 4.9h.UV index
In Alpena, the average daily maximum UV index in October is 2. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In October, the average maximum UV index of 2 translates into the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Alpena, MI
- Average high temperature in October: 54.5°F
The warmest month (with the highest average high temperature) is July (74.1°F).
The month with the lowest average high temperature is January (25.9°F).
- Average low temperature in October: 45°F
The month with the highest average low temperature is August (60.3°F).
The coldest months (with the lowest average low temperature) are January and February (18°F).
Average pressure in October
Alpena, MI
- Average pressure in October: 29.97"Hg
The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in October
Alpena, MI
- Average wind speed in October: 10.4mph
The windiest months (with the highest average wind speed) are January and December (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.5mph).
Average humidity in October
Alpena, MI
- Average humidity in October: 78%
The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is May (73%).
Average rainfall in October
Alpena, MI
- Average rainfall in October: 1.57"
The wettest month (with the highest rainfall) is May (1.61").
The driest month (with the least rainfall) is February (0.71").
Average rainfall days in October
Alpena, MI
- Average rainfall days in October: 14.3 days
The month with the highest number of rainy days is October (14.3 days).
The month with the least rainy days is February (4.4 days).
Average snowfall in October
Alpena, MI
- Average snowfall in October: 0.04"
The month with the highest snowfall is January (3.58").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in October
Alpena, MI
- Average snowfall days in October: 0.9 days
The month with the highest number of snowfall days is January (20.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in October
Alpena, MI
- Average sea temperature in October: 52°F
The best month for swimming (with the highest average sea temperature) is August (64°F).
The coldest months (with the lowest average sea temperature) are February, March and April (36°F).
Average daylight in October /
Average sunshine in October
Alpena, MI
- Average daylight in October: 10h and 54min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in October: 4h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 1h and 48min).
Average sunshine days in October
Alpena, MI
- Average sunshine days in October: 13.1 days
The month with the most sunshine days is May (17.8 days).
The month with the least sunshine days is January (8.4 days).
Average UV index in October
Alpena, MI
- Average UV index in October: 2
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in October
Alpena, MI
- Average cloud cover in October: 53
The month with the most cloud cover is January (Cloud cover 80).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in October
Alpena, MI
- Average visibility in October: 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).
