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 in Glenwood Springs, Colorado, is marked by a minor reduction in average high-temperature, sliding from a warm 76.3°F (24.6°C) in August to an agreeable 69.1°F (20.6°C). A sharp contrast between day and night is prevalent in September with an average nighttime temperature of 41.4°F (5.2°C) in Glenwood Springs.Humidity
The average relative humidity in September is 51%.Rainfall
September is the month with the least rainfall in Glenwood Springs. Rain falls for 8.8 days and accumulates 0.63" (16mm) of precipitation.Snowfall
In Glenwood Springs, snow does not fall in July through September.Daylight
In September, the average length of the day in Glenwood Springs is 12h and 26min.On the first day of September, sunrise is at 6:38 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 6:52 pm MDT.
Sunshine
In September, the average sunshine in Glenwood Springs is 11.1h.UV index
The average daily maximum UV index in September in Glenwood Springs is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: The UV index of 3 in September translates into these instructions:
Be vigilant - Preventing sunburn is recommended. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Frequently asked questions
What is the temperature in September in Glenwood Springs?
What is the average humidity in September in Glenwood Springs?
What is the driest month in Glenwood Springs?
How many days does it rain in September in Glenwood Springs?
When it does not snow in Glenwood Springs?
Does it snow in Glenwood Springs in September?
What is the average length of the day in September in Glenwood Springs?
When are sunrise and sunset in September in Glenwood Springs?
How long on average sun shines in September in Glenwood Springs?
How high is the UV index in September in Glenwood Springs?
Average temperature in September
Glenwood Springs, CO
- Average high temperature in September: 69.1°F
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (29.3°F).
- Average low temperature in September: 41.4°F
The month with the highest average low temperature is July (47.8°F).
The coldest month (with the lowest average low temperature) is January (9.5°F).
Average pressure in September
Glenwood Springs, CO
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is January (30.25"Hg).
The month with the lowest atmospheric pressure is May (29.93"Hg).
Average wind speed in September
Glenwood Springs, CO
- Average wind speed in September: 4.8mph
The windiest month (with the highest average wind speed) is June (5.8mph).
The calmest months (with the lowest average wind speed) are January and December (4.3mph).
Average humidity in September
Glenwood Springs, CO
- Average humidity in September: 51%
The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is June (47%).
Average rainfall in September
Glenwood Springs, CO
- Average rainfall in September: 0.63"
The wettest month (with the highest rainfall) is April (1.73").
The driest month (with the least rainfall) is September (0.63").
Average rainfall days in September
Glenwood Springs, CO
- Average rainfall days in September: 8.8 days
The month with the highest number of rainy days is April (15 days).
The month with the least rainy days is February (7.1 days).
Average snowfall in September
Glenwood Springs, CO
- Average snowfall in September: 0"
The month with the highest snowfall is February (11.18").
The months with the least snowfall are July, August and September (0").
Average snowfall days in September
Glenwood Springs, CO
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (15.2 days).
The months with the least snowfall days are July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Glenwood Springs, CO
- Average daylight in September: 12h and 2min
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: 11h and 1min
The months with the most sunshine are June, July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 6h and 6min).
Average sunshine days in September
Glenwood Springs, CO
- Average sunshine days in September: 15.1 days
The month with the most sunshine days is November (19 days).
The month with the least sunshine days is April (9.6 days).
Average UV index in September
Glenwood Springs, CO
- Average UV index in September: 3
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
Glenwood Springs, CO
- Average cloud cover in September: 12
The month with the most cloud cover is February (Cloud cover 38).
The month with the least cloud cover is September (Cloud cover 12).
Average visibility in September
Glenwood Springs, 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 and February (4mi).
Glenwood Springs, Colorado, USA
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