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 coincides with a small decrease in the average high-temperature, down to a warm 79.5°F (26.4°C) from a tropical 86.7°F (30.4°C). September presents a pronounced difference from daytime highs, with a consistent average low-temperature of 56.8°F (13.8°C).Humidity
With an average relative humidity of 49%, September is the least humid month.Rainfall
In September, in Clarkville, the rain falls for 7 days. Throughout September, 0.79" (20mm) of precipitation is accumulated. Throughout the year, there are 97.4 rainfall days, and 12.52" (318mm) of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall. September is the first month it typically snows. Throughout September, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow. In Clarkville, during the entire year, snow falls for 34.6 days and aggregates up to 14.09" (358mm) of snow.Daylight
The average length of the day in September in Clarkville is 12h and 26min.On the first day of September, sunrise is at 6:18 am and sunset at 7:21 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 6:33 pm MDT.
Sunshine
In September, the average sunshine is 10.1h.UV index
In Clarkville, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum daily UV index of 5 during September morphs into the following directions:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. When the Sun is at its strongest around midday, find shade and limit exposure. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Frequently asked questions
What are the temperatures in Clarkville in September?
What is the least humid month in Clarkville?
What is the average humidity in September in Clarkville?
How many days does it rain in September in Clarkville?
When does it start to snow in Clarkville?
What is the average length of the day in September in Clarkville?
When are sunrise and sunset in September in Clarkville?
How many hours of sunshine does Clarkville have in September?
How high is the UV index in September in Clarkville?
Average temperature in September
Clarkville, CO
- Average high temperature in September: 79.5°F
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is December (39.9°F).
- Average low temperature in September: 56.8°F
The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is December (23.9°F).
Average pressure in September
Clarkville, CO
- Average pressure in September: 29.93"Hg
The months with the highest atmospheric pressure are January and December (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.82"Hg).
Average wind speed in September
Clarkville, CO
- Average wind speed in September: 10.1mph
The windiest month (with the highest average wind speed) is April (12.4mph).
The calmest month (with the lowest average wind speed) is August (9.6mph).
Average humidity in September
Clarkville, CO
- Average humidity in September: 49%
The months with the highest relative humidity are January and February (64%).
The month with the lowest relative humidity is September (49%).
Average rainfall in September
Clarkville, CO
- Average rainfall in September: 0.79"
The wettest month (with the highest rainfall) is May (1.93").
The driest months (with the least rainfall) are January and November (0.43").
Average rainfall days in September
Clarkville, CO
- Average rainfall days in September: 7 days
The month with the highest number of rainy days is July (13.5 days).
The month with the least rainy days is December (3.5 days).
Average snowfall in September
Clarkville, CO
- Average snowfall in September: 0.04"
The month with the highest snowfall is February (2.68").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Clarkville, CO
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is February (7.5 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Clarkville, CO
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 10h and 1min
The month with the most sunshine is August (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 6h and 18min).
Average sunshine days in September
Clarkville, CO
- Average sunshine days in September: 20.8 days
The month with the most sunshine days is December (23 days).
The month with the least sunshine days is July (13.8 days).
Average UV index in September
Clarkville, CO
- Average UV index in September: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Clarkville, CO
- Average cloud cover in September: 18
The month with the most cloud cover is February (Cloud cover 33).
The month with the least cloud cover is August (Cloud cover 17).
Average visibility in September
Clarkville, 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).
Clarkville, Colorado, USA
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