September weather forecastBrowns Canon, CO
September
Weather in September
September, the first month of the autumn in Browns Canon, is still a pleasant month, with an average temperature ranging between max 68°F (20°C) and min 40.6°F (4.8°C).Temperature
A minor decrease in the average high-temperature is observed during September, shifting from a warm 74.8°F (23.8°C) in August to an agreeable 68°F (20°C). A steady average of 40.6°F (4.8°C) throughout September underscores a considerable divergence from the daytime high.Humidity
In Browns Canon, the average relative humidity in September is 52%.Rainfall
In Browns Canon, in September, during 6.5 rainfall days, 0.51" (13mm) of precipitation is typically accumulated. Throughout the year, there are 66.3 rainfall days, and 6.38" (162mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through June, September through December. September is the first month it typically snows. Throughout September, in the average 0.3 snowfall days, it receives 0.04" (1mm) of snow. In Browns Canon, during the entire year, snow falls for 41.4 days and aggregates up to 19.88" (505mm) of snow.Daylight
In September, the average length of the day is 12h and 25min.On the first day of the month, sunrise is at 6:34 am and sunset at 7:33 pm. On the last day of September, in Browns Canon, sunrise is at 6:59 am and sunset at 6:48 pm MDT.
Sunshine
In Browns Canon, the average sunshine in September is 11h.UV index
In Browns Canon, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 3 in September interprets into the following recommendations:
Exercise prevention - Protecting skin and eyes from harm is required. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Browns Canon, CO
- Average high temperature in September: 68°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 (31.1°F).
- Average low temperature in September: 40.6°F
The month with the highest average low temperature is July (46.8°F).
The coldest months (with the lowest average low temperature) are January and December (10.6°F).
Average pressure in September
Browns Canon, CO
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is April (29.93"Hg).
Average wind speed in September
Browns Canon, CO
- Average wind speed in September: 5.5mph
The windiest months (with the highest average wind speed) are February, March and April (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in September
Browns Canon, CO
- Average humidity in September: 52%
The months with the highest relative humidity are January and February (80%).
The month with the lowest relative humidity is June (41%).
Average rainfall in September
Browns Canon, CO
- Average rainfall in September: 0.51"
The wettest month (with the highest rainfall) is July (1.34").
The driest months (with the least rainfall) are January and November (0.2").
Average rainfall days in September
Browns Canon, CO
- Average rainfall days in September: 6.5 days
The month with the highest number of rainy days is July (13 days).
The month with the least rainy days is November (1.1 days).
Average snowfall in September
Browns Canon, CO
- Average snowfall in September: 0.04"
The month with the highest snowfall is February (3.46").
The months with the least snowfall are July and August (0").
Average snowfall days in September
Browns Canon, CO
- Average snowfall days in September: 0.3 days
The month with the highest number of snowfall days is March (7.6 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Browns Canon, CO
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 11h and 0min
The month with the most sunshine is June (Average sunshine: 11h and 42min).
The months with the least sunshine are February and December (Average sunshine: 6h and 42min).
Average sunshine days in September
Browns Canon, CO
- Average sunshine days in September: 22.1 days
The month with the most sunshine days is November (25.9 days).
The month with the least sunshine days is July (16.4 days).
Average UV index in September
Browns Canon, CO
- Average UV index in September: 3
The months with the highest UV index are June and July (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
Browns Canon, CO
- Average cloud cover in September: 18
The month with the most cloud cover is February (Cloud cover 31).
The month with the least cloud cover is June (Cloud cover 15).
Average visibility in September
Browns Canon, CO
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).





