September weather forecastDeckers, CO
September
Weather in September
The first month of the autumn, September, is also an agreeable month in Deckers, Colorado, with an average temperature varying between 45°F (7.2°C) and 68.9°F (20.5°C).Temperature
As August makes way for September, Deckers's average high-temperature eases from a moderately hot 74.7°F (23.7°C) to a pleasant 68.9°F (20.5°C). September presents a pronounced difference from daytime highs, with a consistent average low-temperature of 45°F (7.2°C).Humidity
The average relative humidity in September is 51%.Rainfall
In September, the rain falls for 13.5 days. Throughout September, 1.5" (38mm) of precipitation is accumulated. In Deckers, during the entire year, the rain falls for 134.5 days and collects up to 19.65" (499mm) of precipitation.Snowfall
January through June, September through December are months with snowfall. September is the first month it typically snows. Throughout September, in the average 0.2 snowfall days, it receives 0.08" (2mm) of snow. Throughout the year, there are 60.9 snowfall days, and 47.28" (1201mm) of snow is accumulated.Daylight
In September, the average length of the day is 12h and 26min.On the first day of September, sunrise is at 6:30 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 6:44 pm MDT.
Sunshine
In September, the average sunshine is 10.9h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum high UV index of 4 in September translates into the following recommendations:
Take necessary precautions - Suggestions to elude sunburn are provided. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Deckers, CO
- Average high temperature in September: 68.9°F
The warmest month (with the highest average high temperature) is July (76.1°F).
The month with the lowest average high temperature is January (34.3°F).
- Average low temperature in September: 45°F
The month with the highest average low temperature is July (51.8°F).
The coldest month (with the lowest average low temperature) is February (15.1°F).
Average pressure in September
Deckers, CO
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is April (29.92"Hg).
Average wind speed in September
Deckers, CO
- Average wind speed in September: 5.6mph
The windiest months (with the highest average wind speed) are February and March (7.1mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in September
Deckers, CO
- Average humidity in September: 51%
The month with the highest relative humidity is February (73%).
The month with the lowest relative humidity is June (47%).
Average rainfall in September
Deckers, CO
- Average rainfall in September: 1.5"
The wettest month (with the highest rainfall) is July (3.58").
The driest month (with the least rainfall) is January (0.55").
Average rainfall days in September
Deckers, CO
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is July (23.7 days).
The month with the least rainy days is November (3.5 days).
Average snowfall in September
Deckers, CO
- Average snowfall in September: 0.08"
The month with the highest snowfall is March (9.72").
The months with the least snowfall are July and August (0").
Average snowfall days in September
Deckers, CO
- Average snowfall days in September: 0.2 days
The month with the highest number of snowfall days is February (11.1 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Deckers, CO
- Average daylight in September: 12h and 24min
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 30min).
- Average sunshine in September: 10h and 54min
The month with the most sunshine is June (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 6h and 42min).
Average sunshine days in September
Deckers, CO
- Average sunshine days in September: 12.5 days
The month with the most sunshine days is November (21.7 days).
The month with the least sunshine days is July (4.3 days).
Average UV index in September
Deckers, CO
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in September
Deckers, CO
- Average cloud cover in September: 17
The month with the most cloud cover is April (Cloud cover 28).
The months with the least cloud cover are September, October and November (Cloud cover 17).
Average visibility in September
Deckers, CO
- Average visibility in September: 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).
