September weather forecastTelluride, CO
September
Weather in September
September brings a gentle shift in Telluride, Colorado as the vibrant summer gives way to the colors of fall. The significant drop in snowfall to 2.2" (56mm) signifies the end of the brief summer season. Weather patterns become increasingly unpredictable, offering a blend of bright sunny days and cooler nights.Temperature
September signifies a gentle decline in Telluride's average high-temperature, easing from a comfortable 65.1°F (18.4°C) in August to a mild 59.4°F (15.2°C). Throughout September nights, a significant departure from daytime temperatures, with an average low of 37.2°F (2.9°C), is recognized.Humidity
In Telluride, the average relative humidity in September is 61%.Rainfall
In September, the rain falls for 12.6 days. Throughout September, 1.69" (43mm) of precipitation is accumulated. In Telluride, Colorado, during the entire year, the rain falls for 107.5 days and collects up to 26.34" (669mm) of precipitation.Snowfall
Months with snowfall are January through December. In Telluride, during September, snow falls for 3 days and regularly aggregates up to 2.2" (56mm) of snow. In Telluride, during the entire year, snow falls for 117.7 days and aggregates up to 123.82" (3145mm) 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 6:41 am and sunset at 7:40 pm. On the last day of September, sunrise is at 7:06 am and sunset at 6:55 pm MDT.
Sunshine
In Telluride, the average sunshine in September is 10.7h.UV index
The average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: An average maximum UV index of 3 in September leads to these recommendations:
Be vigilant - Preventing sunburn is recommended. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Telluride, CO
- Average high temperature in September: 59.4°F
The warmest month (with the highest average high temperature) is July (66.7°F).
The month with the lowest average high temperature is December (25.7°F).
- Average low temperature in September: 37.2°F
The month with the highest average low temperature is July (43.3°F).
The coldest month (with the lowest average low temperature) is January (4.3°F).
Average pressure in September
Telluride, CO
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.23"Hg).
The months with the lowest atmospheric pressure are April and May (29.92"Hg).
Average wind speed in September
Telluride, CO
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is June (7.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).
Average humidity in September
Telluride, CO
- Average humidity in September: 61%
The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is June (45%).
Average rainfall in September
Telluride, CO
- Average rainfall in September: 1.69"
The wettest month (with the highest rainfall) is July (4.02").
The driest month (with the least rainfall) is June (1.3").
Average rainfall days in September
Telluride, CO
- Average rainfall days in September: 12.6 days
The month with the highest number of rainy days is July (21.4 days).
The month with the least rainy days is November (3.1 days).
Average snowfall in September
Telluride, CO
- Average snowfall in September: 2.2"
The month with the highest snowfall is March (19.88").
The month with the least snowfall is July (0.12").
Average snowfall days in September
Telluride, CO
- Average snowfall days in September: 3 days
The month with the highest number of snowfall days is February (17.3 days).
The month with the least snowfall days is July (0.3 days).
Average daylight in September /
Average sunshine in September
Telluride, 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 36min).
- Average sunshine in September: 10h and 42min
The month with the most sunshine is June (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in September
Telluride, CO
- Average sunshine days in September: 13.9 days
The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is July (8.1 days).
Average UV index in September
Telluride, CO
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 4).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Telluride, CO
- Average cloud cover in September: 17
The month with the most cloud cover is February (Cloud cover 42).
The month with the least cloud cover is June (Cloud cover 14).
Average visibility in September
Telluride, CO
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (4mi).
