Contents
- Weather in October
- Frequently asked questions
- Average temperature in October
- Average pressure in October
- Average wind speed in October
- Average humidity in October
- Average rainfall in October
- Average rainfall days in October
- Average snowfall in October
- Average snowfall days in October
- Average daylight in October
- Average sunshine in October
- Average sunshine days in October
- Average UV index in October
- Average cloud cover in October
- Average visibility in October
Weather in October
Temperature
A subtle decrease in the average high-temperature marks October, falling from September's pleasant 72.3°F (22.4°C) to a refreshing 59.9°F (15.5°C). Harwood Heights encounters a steady low-temperature average of 47.3°F (8.5°C) throughout the month of October.Humidity
October is the least humid month in Harwood Heights, with an average relative humidity of 72%.Rainfall
In Harwood Heights, in October, it is raining for 8.4 days, with typically 0.67" (17mm) of accumulated precipitation. Throughout the year, there are 98.2 rainfall days, and 7.36" (187mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. October is the first month it typically snows. Throughout October, in the average 0.2 snowfall days, it receives 0.12" (3mm) of snow. In Harwood Heights, during the entire year, snow falls for 28.5 days and aggregates up to 3.07" (78mm) of snow.Daylight
The average length of the day in October is 11h and 4min.On the first day of the month, sunrise is at 6:48 am and sunset at 6:32 pm. On the last day of October, sunrise is at 7:23 am and sunset at 5:46 pm CDT.
Sunshine
In October, the average sunshine is 5.6h.UV index
In Harwood Heights, Illinois, the average daily maximum UV index in October is 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: In October, a regular UV index of 2 translates into these guidelines:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average October temperature in Harwood Heights?
What is the least humid month?
What is the average humidity in October?
How many days does it rain in October?
When does it start to snow in Harwood Heights?
How many hours of daylight does Harwood Heights have in October?
What time are sunrise and sunset in October in Harwood Heights?
How long on average sun shines in October?
What is the UV index reading in October?
Average temperature in October
Harwood Heights, IL
- Average high temperature in October: 59.9°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (28.8°F).
- Average low temperature in October: 47.3°F
The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in October
Harwood Heights, IL
- Average pressure in October: 30"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in October
Harwood Heights, IL
- Average wind speed in October: 10.1mph
The windiest month (with the highest average wind speed) is January (11.1mph).
The calmest month (with the lowest average wind speed) is August (7mph).
Average humidity in October
Harwood Heights, IL
- Average humidity in October: 72%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is October (72%).
Average rainfall in October
Harwood Heights, IL
- Average rainfall in October: 0.67"
The wettest month (with the highest rainfall) is May (1.06").
The driest month (with the least rainfall) is December (0.31").
Average rainfall days in October
Harwood Heights, IL
- Average rainfall days in October: 8.4 days
The month with the highest number of rainy days is May (12.3 days).
The month with the least rainy days is February (2.8 days).
Average snowfall in October
Harwood Heights, IL
- Average snowfall in October: 0.12"
The month with the highest snowfall is February (0.98").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in October
Harwood Heights, IL
- Average snowfall days in October: 0.2 days
The month with the highest number of snowfall days is January (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Harwood Heights, IL
- Average daylight in October: 11h and 1min
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 12min).
- Average sunshine in October: 5h and 4min
The months with the most sunshine are July and August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in October
Harwood Heights, IL
- Average sunshine days in October: 19.7 days
The month with the most sunshine days is December (23.3 days).
The month with the least sunshine days is June (14.7 days).
Average UV index in October
Harwood Heights, IL
- Average UV index in October: 2
The months with the highest UV index are June, 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
Harwood Heights, IL
- Average cloud cover in October: 43
The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in October
Harwood Heights, 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).
Harwood Heights, Illinois, USA
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