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
As September transitions into October, Jefferson sees a drop in the average high-temperature, transitioning from a moderate 57.6°F (14.2°C) to a frosty 43.3°F (6.3°C). The temperature dips to an average of 22.3°F (-5.4°C) during October nights.Humidity
The average relative humidity in October is 65%.Rainfall
In Jefferson, Colorado, in October, it is raining for 5.5 days, with typically 1.42" (36mm) of accumulated precipitation. In Jefferson, during the entire year, the rain falls for 110.4 days and collects up to 24.09" (612mm) of precipitation.Snowfall
Months with snowfall are January through December. In Jefferson, in October, snow falls for 12.3 days, with typically accumulated 10.12" (257mm) of snow. In Jefferson, during the entire year, snow falls for 158 days and aggregates up to 118.82" (3018mm) of snow.Daylight
In October, the average length of the day is 11h and 9min.On the first day of the month, sunrise is at 7:00 am and sunset at 6:45 pm. On the last day of October, sunrise is at 7:30 am and sunset at 6:02 pm MDT.
Sunshine
In Jefferson, the average sunshine in October is 6.8h.UV index
The average daily maximum UV index in October is 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the average person.Note: The daily high UV index of 2 in October translates into this advice:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it cold during October?
What is the average humidity in October?
How much does it rain in October?
How many days does it snow in October?
How many hours of daylight does Jefferson have in October?
When is the sunrise / sunset in October?
How long on average sun shines in October?
How high is the UV index in October?
Average temperature in October
Jefferson, CO
- Average high temperature in October: 43.3°F
The warmest month (with the highest average high temperature) is July (65.8°F).
The month with the lowest average high temperature is December (21.2°F).
- Average low temperature in October: 22.3°F
The month with the highest average low temperature is July (40.1°F).
The coldest months (with the lowest average low temperature) are January and December (0.7°F).
Average pressure in October
Jefferson, CO
- Average pressure in October: 30.06"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The months with the lowest atmospheric pressure are April and May (29.94"Hg).
Average wind speed in October
Jefferson, CO
- Average wind speed in October: 6.3mph
The windiest month (with the highest average wind speed) is February (7mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in October
Jefferson, CO
- Average humidity in October: 65%
The month with the highest relative humidity is February (89%).
The month with the lowest relative humidity is June (54%).
Average rainfall in October
Jefferson, CO
- Average rainfall in October: 1.42"
The wettest month (with the highest rainfall) is July (3.35").
The driest month (with the least rainfall) is November (1.14").
Average rainfall days in October
Jefferson, CO
- Average rainfall days in October: 5.5 days
The month with the highest number of rainy days is July (22.8 days).
The month with the least rainy days is November (2.8 days).
Average snowfall in October
Jefferson, CO
- Average snowfall in October: 10.12"
The month with the highest snowfall is May (19.69").
The month with the least snowfall is July (0.24").
Average snowfall days in October
Jefferson, CO
- Average snowfall days in October: 12.3 days
The month with the highest number of snowfall days is April (22.8 days).
The month with the least snowfall days is July (1.3 days).
Average daylight in October /
Average sunshine in October
Jefferson, CO
- Average daylight in October: 11h and 1min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in October: 6h and 5min
The month with the most sunshine is June (Average sunshine: 11h and 24min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).
Average sunshine days in October
Jefferson, CO
- Average sunshine days in October: 17.2 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is July (5.8 days).
Average UV index in October
Jefferson, CO
- Average UV index in October: 2
The months with the highest UV index are May, June, July and August (UV index 3).
The months with the lowest UV index are February and December (UV index 1).
Average cloud cover in October
Jefferson, CO
- Average cloud cover in October: 27
The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is June (Cloud cover 19).
Average visibility in October
Jefferson, CO
- Average visibility in October: 6mi
The months with the highest visibility are June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March, April and December (4mi).
Jefferson, Colorado, USA
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