September weather forecastCope, CO
September
Weather in September
September, the first month of the autumn in Cope, is still a warm month, with an average temperature ranging between max 79.5°F (26.4°C) and min 56.8°F (13.8°C).Temperature
The arrival of September correlates with a minor temperature reduction, down from August's tropical 86.7°F (30.4°C) to a warm 79.5°F (26.4°C). Cope, in September, experiences a marked contrast from daytime zeniths to a steady average low-temperature of 56.8°F (13.8°C).Humidity
The least humid month is September, with an average relative humidity of 49%.Rainfall
In Cope, during September, the rain falls for 7 days and regularly aggregates up to 0.79" (20mm) of precipitation. In Cope, Colorado, during the entire year, the rain falls for 97.4 days and collects up to 12.52" (318mm) of precipitation.Snowfall
Months with snowfall are January through May, September through December. September is the first month it typically snows. Throughout September, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow. In Cope, during the entire year, snow falls for 34.6 days and aggregates up to 14.09" (358mm) of snow.Daylight
In September, the average length of the day is 12h and 26min.On the first day of the month, sunrise is at 6:20 am and sunset at 7:22 pm. On the last day of September, sunrise is at 6:47 am and sunset at 6:34 pm MDT.
Sunshine
In September, the average sunshine is 10.1h.UV index
The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 5 suggests these recommendations:
Guard yourself - An obligation to protect skin and eyes from harm exists. The Sun's radiation is especially intense around midday; try to stay in shade during this period. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Cope, CO
- Average high temperature in September: 79.5°F
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is December (39.9°F).
- Average low temperature in September: 56.8°F
The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is December (23.9°F).
Average pressure in September
Cope, CO
- Average pressure in September: 29.93"Hg
The months with the highest atmospheric pressure are January and December (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.82"Hg).
Average wind speed in September
Cope, CO
- Average wind speed in September: 10.1mph
The windiest month (with the highest average wind speed) is April (12.4mph).
The calmest month (with the lowest average wind speed) is August (9.6mph).
Average humidity in September
Cope, CO
- Average humidity in September: 49%
The months with the highest relative humidity are January and February (64%).
The month with the lowest relative humidity is September (49%).
Average rainfall in September
Cope, CO
- Average rainfall in September: 0.79"
The wettest month (with the highest rainfall) is May (1.93").
The driest months (with the least rainfall) are January and November (0.43").
Average rainfall days in September
Cope, CO
- Average rainfall days in September: 7 days
The month with the highest number of rainy days is July (13.5 days).
The month with the least rainy days is December (3.5 days).
Average snowfall in September
Cope, CO
- Average snowfall in September: 0.04"
The month with the highest snowfall is February (2.68").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Cope, CO
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is February (7.5 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Cope, 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 24min).
- Average sunshine in September: 10h and 6min
The month with the most sunshine is August (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 6h and 18min).
Average sunshine days in September
Cope, CO
- Average sunshine days in September: 20.8 days
The month with the most sunshine days is December (23 days).
The month with the least sunshine days is July (13.8 days).
Average UV index in September
Cope, CO
- Average UV index in September: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Cope, CO
- Average cloud cover in September: 18
The month with the most cloud cover is February (Cloud cover 33).
The month with the least cloud cover is August (Cloud cover 17).
Average visibility in September
Cope, 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).





