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
Jefferson in October demonstrates a small temperature transition, adjusting from an average high of a pleasant 71.8°F (22.1°C) in September to a moderate 58.1°F (14.5°C). Nighttime temperature in Jefferson lowers to an average of 42.1°F (5.6°C) in October.Humidity
In Jefferson, the average relative humidity in October is 77%.Rainfall
In October, the rain falls for 12.6 days. Throughout October, 2.76" (70mm) of precipitation is accumulated. Throughout the year, in Jefferson, there are 149.4 rainfall days, and 28.82" (732mm) of precipitation is accumulated.Snowfall
Months with snowfall in Jefferson are January through May, October through December. October is the first month it typically snows. Throughout October, in the average 0.9 snowfall days, it receives 0.59" (15mm) of snow. Throughout the year, there are 58 snowfall days, and 21.85" (555mm) of snow is accumulated.Daylight
In October, the average length of the day is 11h and 1min.On the first day of the month, sunrise is at 6:53 am and sunset at 6:35 pm. On the last day of October, in Jefferson, Wisconsin, sunrise is at 7:29 am and sunset at 5:48 pm CDT.
Sunshine
In Jefferson, the average sunshine in October is 5.3h.UV index
The average daily maximum UV index in October is 2. A UV Index estimate of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for average individuals.Note: A typical high UV index of 2 in October suggests the following recommendations:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are October temperatures in Jefferson?
What is the average humidity in October in Jefferson?
How much does it rain in Jefferson in October?
When does it start to snow in Jefferson?
How many hours of daylight does Jefferson have in October?
When are sunrise and sunset in October in Jefferson?
How many hours of sunshine does Jefferson have in October?
How high is the UV index in October in Jefferson?
Average temperature in October
Jefferson, WI
- Average high temperature in October: 58.1°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (24.3°F).
- Average low temperature in October: 42.1°F
The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (12°F).
Average pressure in October
Jefferson, WI
- Average pressure in October: 29.99"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in October
Jefferson, WI
- Average wind speed in October: 8.7mph
The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in October
Jefferson, WI
- Average humidity in October: 77%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is April (76%).
Average rainfall in October
Jefferson, WI
- Average rainfall in October: 2.76"
The wettest month (with the highest rainfall) is June (3.78").
The driest months (with the least rainfall) are January and February (1.42").
Average rainfall days in October
Jefferson, WI
- Average rainfall days in October: 12.6 days
The month with the highest number of rainy days is May (19.6 days).
The month with the least rainy days is February (5 days).
Average snowfall in October
Jefferson, WI
- Average snowfall in October: 0.59"
The month with the highest snowfall is February (5.39").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in October
Jefferson, WI
- Average snowfall days in October: 0.9 days
The month with the highest number of snowfall days is January (15.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Jefferson, WI
- Average daylight in October: 11h and 0min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in October: 5h and 2min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in October
Jefferson, WI
- Average sunshine days in October: 14.7 days
The month with the most sunshine days is November (16.1 days).
The months with the least sunshine days are May and June (9.8 days).
Average UV index in October
Jefferson, WI
- Average UV index in October: 2
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in October
Jefferson, WI
- Average cloud cover in October: 45
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in October
Jefferson, WI
- Average visibility in October: 6mi
The months with the highest visibility are March, April, May, June, October and November (6mi).
The months with the lowest visibility are January, February, July, August, September and December (5mi).
Jefferson, Wisconsin, USA
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