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 onset of September results in a small decrease in the average high-temperature, moderately receding from a comfortable 65.5°F (18.6°C) in August to a still refreshing 59°F (15°C). Frisco, in September, experiences a marked contrast from daytime zeniths to a steady average low-temperature of 33.8°F (1°C).Humidity
In Frisco, the average relative humidity in September is 58%.Rainfall
In Frisco, in September, during 9 rainfall days, 1.02" (26mm) of precipitation is typically accumulated. Throughout the year, in Frisco, there are 74.4 rainfall days, and 14.96" (380mm) of precipitation is accumulated.Snowfall
January through December are months with snowfall. In Frisco, during September, snow falls for 3.5 days and regularly aggregates up to 1.26" (32mm) of snow. In Frisco, during the entire year, snow falls for 99.6 days and aggregates up to 68.54" (1741mm) of snow.Daylight
In September, the average length of the day in Frisco is 12h and 26min.On the first day of September in Frisco, sunrise is at 6:33 am and sunset at 7:34 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 6:47 pm MDT.
Sunshine
The average sunshine in September in Frisco is 10.9h.UV index
The average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum daily UV index, 3 in September, converts into the following recommendations:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Frequently asked questions
What is the average September temperature in Frisco?
What is the average humidity in September in Frisco?
How much does it rain in Frisco in September?
How many days does it snow in September in Frisco?
What is the average length of the day in September in Frisco?
When are sunrise and sunset in September in Frisco?
How many hours of sunshine does Frisco have in September?
What is the UV index intensity in September in Frisco?
Average temperature in September
Frisco, CO
- Average high temperature in September: 59°F
The warmest month (with the highest average high temperature) is July (67.1°F).
The month with the lowest average high temperature is December (22.6°F).
- Average low temperature in September: 33.8°F
The month with the highest average low temperature is July (40.6°F).
The coldest month (with the lowest average low temperature) is January (1.6°F).
Average pressure in September
Frisco, CO
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is January (30.2"Hg).
The months with the lowest atmospheric pressure are April and May (29.94"Hg).
Average wind speed in September
Frisco, CO
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is February (6.6mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).
Average humidity in September
Frisco, CO
- Average humidity in September: 58%
The month with the highest relative humidity is February (88%).
The month with the lowest relative humidity is June (53%).
Average rainfall in September
Frisco, CO
- Average rainfall in September: 1.02"
The wettest month (with the highest rainfall) is July (2.36").
The driest month (with the least rainfall) is January (0.67").
Average rainfall days in September
Frisco, CO
- Average rainfall days in September: 9 days
The month with the highest number of rainy days is July (19.3 days).
The months with the least rainy days are February and November (1.1 days).
Average snowfall in September
Frisco, CO
- Average snowfall in September: 1.26"
The month with the highest snowfall is May (12.4").
The month with the least snowfall is July (0.12").
Average snowfall days in September
Frisco, CO
- Average snowfall days in September: 3.5 days
The month with the highest number of snowfall days is May (13.8 days).
The month with the least snowfall days is July (0.9 days).
Average daylight in September /
Average sunshine in September
Frisco, 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 month with the most sunshine is June (Average sunshine: 11h and 30min).
The month with the least sunshine is February (Average sunshine: 5h and 24min).
Average sunshine days in September
Frisco, CO
- Average sunshine days in September: 17.2 days
The month with the most sunshine days is October (22.3 days).
The month with the least sunshine days is July (8.7 days).
Average UV index in September
Frisco, CO
- Average UV index in September: 3
The months with the highest UV index are July and August (UV index 4).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Frisco, CO
- Average cloud cover in September: 19
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 18).
Average visibility in September
Frisco, CO
- Average visibility in September: 6mi
The months with the highest visibility are June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March, April and December (4mi).
Frisco, Colorado, USA
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