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 shift from August to September includes a minor decrease in the average high-temperature, lightly dropping from a warm 84.7°F (29.3°C) to a still moderately hot 77.7°F (25.4°C). The nighttime temperature shows a significant divergence from the daytime highs, averaging at a fresh 52.2°F (11.2°C) in September.Humidity
In Columbine Valley, the average relative humidity in September is 42%.Rainfall
In Columbine Valley, Colorado, during September, the rain falls for 7.9 days and regularly aggregates up to 0.55" (14mm) of precipitation. In Columbine Valley, during the entire year, the rain falls for 101.2 days and collects up to 11.89" (302mm) of precipitation.Snowfall
In Columbine Valley, snow does not fall in June through September.Daylight
In September, the average length of the day in Columbine Valley, Colorado, is 12h and 26min.On the first day of September, sunrise is at 6:29 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 6:43 pm MDT.
Sunshine
In September, the average sunshine is 11.1h.UV index
In Columbine Valley, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 5 during September translates into the following directions:
Exercise care. People with light skin might get burns in fewer than 30 minutes. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Columbine Valley?
What is the average humidity in September in Columbine Valley?
How much does it rain in Columbine Valley in September?
When it does not snow in Columbine Valley?
Does it snow in Columbine Valley in September?
How many hours of daylight does Columbine Valley have in September?
What time are sunrise and sunset in September in Columbine Valley?
How long on average sun shines in September in Columbine Valley?
How high is the UV index in September in Columbine Valley?
Average temperature in September
Columbine Valley, CO
- Average high temperature in September: 77.7°F
The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is December (41°F).
- Average low temperature in September: 52.2°F
The month with the highest average low temperature is July (59.7°F).
The coldest month (with the lowest average low temperature) is December (21°F).
Average pressure in September
Columbine Valley, CO
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is April (29.91"Hg).
Average wind speed in September
Columbine Valley, CO
- Average wind speed in September: 6mph
The windiest month (with the highest average wind speed) is April (7mph).
The calmest month (with the lowest average wind speed) is September (6mph).
Average humidity in September
Columbine Valley, CO
- Average humidity in September: 42%
The month with the highest relative humidity is February (65%).
The months with the lowest relative humidity are June and August (41%).
Average rainfall in September
Columbine Valley, CO
- Average rainfall in September: 0.55"
The wettest month (with the highest rainfall) is May (2.05").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days in September
Columbine Valley, CO
- Average rainfall days in September: 7.9 days
The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is January (3 days).
Average snowfall in September
Columbine Valley, CO
- Average snowfall in September: 0"
The month with the highest snowfall is February (6.3").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Columbine Valley, CO
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is February (9.2 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Columbine Valley, 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 48min).
Average sunshine days in September
Columbine Valley, CO
- Average sunshine days in September: 17.7 days
The month with the most sunshine days is November (23.5 days).
The month with the least sunshine days is July (10 days).
Average UV index in September
Columbine Valley, CO
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Columbine Valley, CO
- Average cloud cover in September: 14
The month with the most cloud cover is April (Cloud cover 26).
The month with the least cloud cover is September (Cloud cover 14).
Average visibility in September
Columbine Valley, 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).
Columbine Valley, Colorado, USA
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