October weather forecastWinthrop Harbor, IL
October
Weather in October
October, the same as September, in Winthrop Harbor, Illinois, is a moderate autumn month, with temperature in the range of an average high of 58.3°F (14.6°C) and an average low of 46.9°F (8.3°C).Temperature
With October's onset, the average high-temperature recedes from September's pleasant 70.9°F (21.6°C) to a moderate 58.3°F (14.6°C). In October, Winthrop Harbor reports a consistent average low-temperature of 46.9°F (8.3°C) during the nights.Humidity
October and November, with an average relative humidity of 75%, are the least humid months in Winthrop Harbor.Rainfall
In October, in Winthrop Harbor, the rain falls for 12.9 days. Throughout October, 1.89" (48mm) of precipitation is accumulated. Throughout the year, in Winthrop Harbor, there are 142.5 rainfall days, and 21.5" (546mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. October is the first month it typically snows in Winthrop Harbor. Throughout October, in the average 0.7 snowfall days, it receives 0.16" (4mm) of snow. Throughout the year, in Winthrop Harbor, Illinois, there are 45.5 snowfall days, and 9.37" (238mm) of snow is accumulated.Daylight
The average length of the day in October is 11h and 2min.On the first day of the month, sunrise is at 6:49 am and sunset at 6:32 pm. On the last day of October, sunrise is at 7:24 am and sunset at 5:45 pm CDT.
Sunshine
The average sunshine in October is 5.6h.UV index
In October, the average daily maximum UV index in Winthrop Harbor is 2. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index of 2 during October leads to these instructions:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. During bright days, sunglasses that offer UVA and UVB defense are recommended. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Winthrop Harbor, IL
- Average high temperature in October: 58.3°F
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (27.9°F).
- Average low temperature in October: 46.9°F
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).
Average pressure in October
Winthrop Harbor, IL
- Average pressure in October: 30"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in October
Winthrop Harbor, IL
- Average wind speed in October: 10.5mph
The windiest month (with the highest average wind speed) is January (11.9mph).
The calmest month (with the lowest average wind speed) is August (7.3mph).
Average humidity in October
Winthrop Harbor, IL
- Average humidity in October: 75%
The month with the highest relative humidity is January (83%).
The months with the lowest relative humidity are October and November (75%).
Average rainfall in October
Winthrop Harbor, IL
- Average rainfall in October: 1.89"
The wettest months (with the highest rainfall) are June and August (2.68").
The driest month (with the least rainfall) is December (0.91").
Average rainfall days in October
Winthrop Harbor, IL
- Average rainfall days in October: 12.9 days
The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is February (5.2 days).
Average snowfall in October
Winthrop Harbor, IL
- Average snowfall in October: 0.16"
The month with the highest snowfall is February (2.6").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in October
Winthrop Harbor, IL
- Average snowfall days in October: 0.7 days
The month with the highest number of snowfall days is January (12.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Winthrop Harbor, IL
- Average daylight in October: 11h and 0min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in October: 5h and 36min
The months with the most sunshine are July and August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in October
Winthrop Harbor, IL
- Average sunshine days in October: 14.6 days
The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is July (10.8 days).
Average UV index in October
Winthrop Harbor, IL
- Average UV index in October: 2
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in October
Winthrop Harbor, IL
- Average cloud cover in October: 43
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in October
Winthrop Harbor, IL
- Average visibility in October: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
