Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The arrival of September suggests a slight decrease in the average high-temperature, moving from a pleasant 73.2°F (22.9°C) in August to a comfortable 66.6°F (19.2°C). A noteworthy thermal contrast characterizes Glendevey's September nights, with temperatures averaging at a chilly 43.7°F (6.5°C).Humidity
June, August and September, with an average relative humidity of 48%, are the least humid months.Rainfall
In September, the rain falls for 10.7 days. Throughout September, 1.18" (30mm) of precipitation is accumulated. In Glendevey, during the entire year, the rain falls for 122.3 days and collects up to 18.15" (461mm) of precipitation.Snowfall
Months with snowfall are January through June, August through December. In Glendevey, in September, snow falls for 1.5 days, with typically accumulated 0.75" (19mm) of snow. Throughout the year, there are 103.4 snowfall days, and 71.97" (1828mm) of snow is accumulated.Daylight
In September, the average length of the day is 12h and 27min.On the first day of September, sunrise is at 6:31 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 6:46 pm MDT.
Sunshine
The average sunshine in September is 10.8h.UV index
In Glendevey, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: In September, the average maximum UV index of 4 translates into the following recommendations:
Put precautions into practice - Guidance to elude sunburn is provided. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What are the least humid months?
What is the average humidity in September?
How much does it rain in September?
How much does it snow in September?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
How high is the UV index in September in Glendevey?
Average temperature in September
Glendevey, CO
- Average high temperature in September: 66.6°F
The warmest month (with the highest average high temperature) is July (74.3°F).
The month with the lowest average high temperature is December (28.6°F).
- Average low temperature in September: 43.7°F
The month with the highest average low temperature is July (51.3°F).
The coldest month (with the lowest average low temperature) is December (13.3°F).
Average pressure in September
Glendevey, CO
- Average pressure in September: 29.99"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Glendevey, CO
- Average wind speed in September: 8.2mph
The windiest month (with the highest average wind speed) is January (12.5mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).
Average humidity in September
Glendevey, CO
- Average humidity in September: 48%
The month with the highest relative humidity is February (75%).
The months with the lowest relative humidity are June, August and September (48%).
Average rainfall in September
Glendevey, CO
- Average rainfall in September: 1.18"
The wettest month (with the highest rainfall) is May (2.87").
The driest month (with the least rainfall) is January (0.63").
Average rainfall days in September
Glendevey, CO
- Average rainfall days in September: 10.7 days
The month with the highest number of rainy days is July (17.1 days).
The month with the least rainy days is November (4.2 days).
Average snowfall in September
Glendevey, CO
- Average snowfall in September: 0.75"
The month with the highest snowfall is April (14.88").
The month with the least snowfall is July (0").
Average snowfall days in September
Glendevey, CO
- Average snowfall days in September: 1.5 days
The month with the highest number of snowfall days is March (15.8 days).
The month with the least snowfall days is July (0 days).
Average daylight in September /
Average sunshine in September
Glendevey, CO
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 10h and 5min
The month with the most sunshine is June (Average sunshine: 11h and 24min).
The month with the least sunshine is February (Average sunshine: 6h and 24min).
Average sunshine days in September
Glendevey, CO
- Average sunshine days in September: 16.4 days
The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is May (7.2 days).
Average UV index in September
Glendevey, 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, April, October, November and December (UV index 2).
Average cloud cover in September
Glendevey, CO
- Average cloud cover in September: 19
The months with the most cloud cover are February, April and May (Cloud cover 34).
The month with the least cloud cover is September (Cloud cover 19).
Average visibility in September
Glendevey, 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).
Glendevey, Colorado, USA
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