September weather forecastPieplant Mill, CO
September
Weather in September
September, the first month of the autumn in Pieplant Mill, is still a refreshing month, with an average temperature varying between 58.8°F (14.9°C) and 34.3°F (1.3°C).Temperature
Pieplant Mill, Colorado, in September experiences a gentle temperature dip, with average high-temperatures reducing from 64.8°F (18.2°C) in August to a still refreshing 58.8°F (14.9°C). During September, Pieplant Mill reports a marked contrast from daily peak temperatures, with an average nighttime reading of 34.3°F (1.3°C).Humidity
In Pieplant Mill, Colorado, the average relative humidity in September is 59%.Rainfall
In Pieplant Mill, in September, it is raining for 11.8 days, with typically 1.3" (33mm) of accumulated precipitation. Throughout the year, in Pieplant Mill, there are 120.6 rainfall days, and 19.29" (490mm) of precipitation is accumulated.Snowfall
January through December are months with snowfall. In Pieplant Mill, in September, during 3.2 snowfall days, 1.14" (29mm) of snow is typically accumulated. In Pieplant Mill, during the entire year, snow falls for 142.6 days and aggregates up to 90.39" (2296mm) of snow.Daylight
In September, the average length of the day is 12h and 26min.On the first day of the month, sunrise is at 6:35 am and sunset at 7:36 pm. On the last day of September, sunrise is at 7:01 am and sunset at 6:49 pm MDT.
Sunshine
The average sunshine in September is 10.8h.UV index
In September, the average daily maximum UV index in Pieplant Mill is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: A daily high UV index of 3 in September leads to these guidelines:
Guard yourself - Precautionary measures against sun damage are advocated. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Pieplant Mill, CO
- Average high temperature in September: 58.8°F
The warmest month (with the highest average high temperature) is July (66.7°F).
The month with the lowest average high temperature is December (23.5°F).
- Average low temperature in September: 34.3°F
The month with the highest average low temperature is July (40.1°F).
The coldest months (with the lowest average low temperature) are January and December (2.7°F).
Average pressure in September
Pieplant Mill, CO
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is January (30.2"Hg).
The month with the lowest atmospheric pressure is April (29.94"Hg).
Average wind speed in September
Pieplant Mill, CO
- Average wind speed in September: 5.3mph
The windiest month (with the highest average wind speed) is February (7mph).
The calmest months (with the lowest average wind speed) are July and August (4.6mph).
Average humidity in September
Pieplant Mill, CO
- Average humidity in September: 59%
The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is June (51%).
Average rainfall in September
Pieplant Mill, CO
- Average rainfall in September: 1.3"
The wettest month (with the highest rainfall) is July (2.83").
The driest month (with the least rainfall) is November (0.91").
Average rainfall days in September
Pieplant Mill, CO
- Average rainfall days in September: 11.8 days
The month with the highest number of rainy days is July (20.3 days).
The month with the least rainy days is November (3.9 days).
Average snowfall in September
Pieplant Mill, CO
- Average snowfall in September: 1.14"
The month with the highest snowfall is March (15.08").
The month with the least snowfall is August (0.31").
Average snowfall days in September
Pieplant Mill, CO
- Average snowfall days in September: 3.2 days
The month with the highest number of snowfall days is March (20 days).
The month with the least snowfall days is August (1.3 days).
Average daylight in September /
Average sunshine in September
Pieplant Mill, CO
- Average daylight in September: 12h and 24min
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 30min).
- Average sunshine in September: 10h and 48min
The month with the most sunshine is June (Average sunshine: 11h and 36min).
The month with the least sunshine is February (Average sunshine: 5h and 42min).
Average sunshine days in September
Pieplant Mill, CO
- Average sunshine days in September: 13.6 days
The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is April (6.1 days).
Average UV index in September
Pieplant Mill, CO
- Average UV index in September: 3
The month with the highest UV index is July (UV index 4).
The months with the lowest UV index are February and December (UV index 1).
Average cloud cover in September
Pieplant Mill, CO
- Average cloud cover in September: 20
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is June (Cloud cover 17).
Average visibility in September
Pieplant Mill, CO
- Average visibility in September: 6mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).





