October weather forecastDerby, CO
October
Weather in October
October, the same as September, is another refreshing autumn month in Derby, Colorado, with temperature in the range of an average low of 40.1°F (4.5°C) and an average high of 63.3°F (17.4°C).Temperature
A notable decrease in the average high-temperature is observed during October, falling from a warm 79.5°F (26.4°C) in September to a refreshing 63.3°F (17.4°C). Derby sees a major change from daytime highs, with the nighttime temperature dipping to a wintry 40.1°F (4.5°C) on average during October.Humidity
In Derby, the average relative humidity in October is 46%.Rainfall
In Derby, during October, the rain falls for 2.3 days and regularly aggregates up to 0.24" (6mm) of precipitation. Throughout the year, there are 48.3 rainfall days, and 3.19" (81mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. October is the month with the most snowfall. Snow falls for 1.7 days and accumulates 1.42" (36mm) of snow.Daylight
In Derby, the average length of the day in October is 11h and 8min.On the first day of October, sunrise is at 6:56 am and sunset at 6:41 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 5:58 pm MDT.
Sunshine
The average sunshine in October is 7.5h.UV index
In October, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: The daily high UV index of 3 in October translates into this advice:
Ensure safety - Sun damage prevention is strongly urged. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Derby, CO
- Average high temperature in October: 63.3°F
The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is December (41.2°F).
- Average low temperature in October: 40.1°F
The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is December (21.9°F).
Average pressure in October
Derby, CO
- Average pressure in October: 30.03"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are April and June (29.91"Hg).
Average wind speed in October
Derby, CO
- Average wind speed in October: 6mph
The windiest month (with the highest average wind speed) is April (6.9mph).
The calmest month (with the lowest average wind speed) is December (5.8mph).
Average humidity in October
Derby, CO
- Average humidity in October: 46%
The month with the highest relative humidity is February (64%).
The month with the lowest relative humidity is August (39%).
Average rainfall in October
Derby, CO
- Average rainfall in October: 0.24"
The wettest month (with the highest rainfall) is July (0.59").
The driest months (with the least rainfall) are January and December (0.08").
Average rainfall days in October
Derby, CO
- Average rainfall days in October: 2.3 days
The month with the highest number of rainy days is July (8.2 days).
The month with the least rainy days is February (1.2 days).
Average snowfall in October
Derby, CO
- Average snowfall in October: 1.42"
The month with the highest snowfall is October (1.42").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in October
Derby, CO
- Average snowfall days in October: 1.7 days
The month with the highest number of snowfall days is February (4.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Derby, CO
- Average daylight in October: 11h and 6min
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 24min).
- Average sunshine in October: 7h and 30min
The months with the most sunshine are June and July (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 6h and 42min).
Average sunshine days in October
Derby, CO
- Average sunshine days in October: 26.7 days
The month with the most sunshine days is December (28.5 days).
The month with the least sunshine days is July (19.6 days).
Average UV index in October
Derby, CO
- 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
Derby, CO
- Average cloud cover in October: 17
The months with the most cloud cover are February, April and May (Cloud cover 25).
The month with the least cloud cover is September (Cloud cover 14).
Average visibility in October
Derby, CO
- 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).
