September weather forecastWestcreek, CO
September
Weather in September
September, the first month of the autumn in Westcreek, is also an agreeable month, with temperature in the range of an average high of 68.9°F (20.5°C) and an average low of 45°F (7.2°C).Temperature
In Westcreek, the average high-temperature in September slightly decreases from a moderately hot 74.7°F (23.7°C) in August to an agreeable 68.9°F (20.5°C). In stark contrast to the day's heat, the temperature dips to an average of 45°F (7.2°C) during September nights.Humidity
The average relative humidity in September is 51%.Rainfall
In Westcreek, in September, it is raining for 13.5 days, with typically 1.5" (38mm) of accumulated precipitation. In Westcreek, during the entire year, the rain falls for 134.5 days and collects up to 19.65" (499mm) of precipitation.Snowfall
Months with snowfall are January through June, September through December. 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
The average length of the day in September is 12h and 26min.On the first day of September, sunrise is at 6:30 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 6:44 pm MDT.
Sunshine
In Westcreek, the average sunshine in September is 10.9h.UV index
In Westcreek, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: In September, the maximum UV index of 4 transforms into these recommendations:
Undertake protective steps - Recommendations to avoid sunburn are issued. When the Sun is at its strongest around midday, find shade and limit exposure. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Westcreek, 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
Westcreek, 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
Westcreek, 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
Westcreek, 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
Westcreek, 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
Westcreek, 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
Westcreek, 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
Westcreek, 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
Westcreek, 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
Westcreek, 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
Westcreek, 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
Westcreek, 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
Westcreek, 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).
