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
October's arrival coincides with a drop in the average high-temperature, decreasing from September's warm 76.8°F (24.9°C) to a refreshing 63°F (17.2°C). During the nights in October, Raritan experiences a consistent average temperature of 46°F (7.8°C).Humidity
The least humid month is October, with an average relative humidity of 71%.Rainfall
In October, the rain falls for 9.9 days. Throughout October, 1.46" (37mm) of precipitation is accumulated. In Raritan, during the entire year, the rain falls for 127.6 days and collects up to 21.02" (534mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. October is the first month it typically snows. Throughout October, in the average 0.3 snowfall days, it receives 0.12" (3mm) of snow. Throughout the year, there are 26.4 snowfall days, and 9.06" (230mm) of snow is accumulated.Daylight
In October, the average length of the day in Raritan is 11h and 7min.On the first day of October, sunrise is at 7:00 am and sunset at 6:44 pm. On the last day of the month, sunrise is at 7:33 am and sunset at 6:00 pm CDT.
Sunshine
The average sunshine in October is 5.5h.UV index
The average daily maximum UV index in October is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: A maximum UV index of 3 in October translates into the following recommendations:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are October temperatures in Raritan?
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 snowing?
How many hours of daylight does Raritan have in October?
When is the sunrise / sunset in October in Raritan?
How long on average sun shines in October?
What is the UV index reading in October in Raritan?
Average temperature in October
Raritan, IL
- Average high temperature in October: 63°F
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (30.9°F).
- Average low temperature in October: 46°F
The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).
Average pressure in October
Raritan, IL
- Average pressure in October: 30.02"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in October
Raritan, IL
- Average wind speed in October: 9.4mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.7mph).
Average humidity in October
Raritan, IL
- Average humidity in October: 71%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in October
Raritan, IL
- Average rainfall in October: 1.46"
The wettest month (with the highest rainfall) is May (3.11").
The driest month (with the least rainfall) is January (0.83").
Average rainfall days in October
Raritan, IL
- Average rainfall days in October: 9.9 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (4.3 days).
Average snowfall in October
Raritan, IL
- Average snowfall in October: 0.12"
The month with the highest snowfall is January (3.15").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in October
Raritan, IL
- Average snowfall days in October: 0.3 days
The month with the highest number of snowfall days is January (8.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Raritan, IL
- Average daylight in October: 11h and 1min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in October: 5h and 3min
The months with the most sunshine are June and July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in October
Raritan, IL
- Average sunshine days in October: 19.5 days
The month with the most sunshine days is December (20 days).
The months with the least sunshine days are May and June (11.8 days).
Average UV index in October
Raritan, IL
- Average UV index in October: 3
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in October
Raritan, IL
- Average cloud cover in October: 37
The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are August and September (Cloud cover 30).
Average visibility in October
Raritan, 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).
Raritan, Illinois, USA
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