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
A modest decline in the average high-temperature is seen during September, decreasing from a warm 82°F (27.8°C) in August to a still moderately hot 75.7°F (24.3°C). Franktown registers a pronounced decline from daytime peak temperatures, averaging a cool 52.2°F (11.2°C) lows in September.Humidity
The least humid month is September, with an average relative humidity of 45%.Rainfall
In Franktown, in September, during 11.5 rainfall days, 0.98" (25mm) of precipitation is typically accumulated. Throughout the year, there are 116.5 rainfall days, and 16.22" (412mm) of precipitation is accumulated.Snowfall
Months with snowfall in Franktown are January through June, September through December. September is the first month it typically snows. Throughout September, in the average 0.3 snowfall days, it receives 0.12" (3mm) of snow. Throughout the year, there are 53.7 snowfall days, and 35.51" (902mm) of snow is accumulated.Daylight
In Franktown, the average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 6:28 am and sunset at 7:29 pm. On the last day of September, sunrise is at 6:54 am and sunset at 6:42 pm MDT.
Sunshine
In Franktown, the average sunshine in September is 10.9h.UV index
The average daily maximum UV index in September in Franktown is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: In September, the maximum UV index of 4 suggests this advice:
Be vigilant - A duty to shield skin and eyes from injury exists. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Frequently asked questions
What are September temperatures in Franktown?
What is the least humid month in Franktown?
What is the average humidity in September in Franktown?
How much does it rain in Franktown in September?
When does it start to snow in Franktown?
How many hours of daylight does Franktown have in September?
When is the sunrise / sunset in September in Franktown?
How many hours of sunshine does Franktown have in September?
How high is the UV index in September in Franktown?
Average temperature in September
Franktown, CO
- Average high temperature in September: 75.7°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is December (38.8°F).
- Average low temperature in September: 52.2°F
The month with the highest average low temperature is July (58.8°F).
The coldest month (with the lowest average low temperature) is December (20.5°F).
Average pressure in September
Franktown, CO
- Average pressure in September: 30"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The months with the lowest atmospheric pressure are April and June (29.9"Hg).
Average wind speed in September
Franktown, CO
- Average wind speed in September: 7.5mph
The windiest month (with the highest average wind speed) is April (9.2mph).
The calmest month (with the lowest average wind speed) is August (7.3mph).
Average humidity in September
Franktown, CO
- Average humidity in September: 45%
The month with the highest relative humidity is February (65%).
The month with the lowest relative humidity is September (45%).
Average rainfall in September
Franktown, CO
- Average rainfall in September: 0.98"
The wettest month (with the highest rainfall) is July (2.8").
The driest month (with the least rainfall) is December (0.47").
Average rainfall days in September
Franktown, CO
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is July (18.5 days).
The month with the least rainy days is November (2.5 days).
Average snowfall in September
Franktown, CO
- Average snowfall in September: 0.12"
The month with the highest snowfall is April (6.54").
The months with the least snowfall are July and August (0").
Average snowfall days in September
Franktown, CO
- Average snowfall days in September: 0.3 days
The month with the highest number of snowfall days is February (10 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Franktown, 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: 10h and 5min
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 36min).
Average sunshine days in September
Franktown, CO
- Average sunshine days in September: 13.2 days
The month with the most sunshine days is January (22.5 days).
The month with the least sunshine days is July (6.3 days).
Average UV index in September
Franktown, CO
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Franktown, CO
- Average cloud cover in September: 17
The month with the most cloud cover is April (Cloud cover 28).
The months with the least cloud cover are June and September (Cloud cover 17).
Average visibility in September
Franktown, 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).
Franktown, Colorado, USA
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