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 arrival of September corresponds with a light shift in temperature, down from a moderately hot 77.7°F (25.4°C) in August to an agreeable 69.3°F (20.7°C). Piedmont observes an average nighttime temperature of 48.4°F (9.1°C) during September.Humidity
In September, the average relative humidity in Piedmont is 38%.Rainfall
In September, in Piedmont, the rain falls for 6.5 days. Throughout September, 0.63" (16mm) of precipitation is accumulated. In Piedmont, during the entire year, the rain falls for 78.2 days and collects up to 7.48" (190mm) of precipitation.Snowfall
Months with snowfall in Piedmont, Wyoming, are January through June, September through December. September is the first month it typically snows in Piedmont. Throughout September, in the average 0.7 snowfall days, it receives 0.51" (13mm) of snow. In Piedmont, during the entire year, snow falls for 58.7 days and aggregates up to 24.72" (628mm) of snow.Daylight
In September, the average length of the day is 12h and 27min.On the first day of September, sunrise is at 6:49 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 7:05 pm MDT.
Sunshine
In Piedmont, the average sunshine in September is 10.4h.UV index
In Piedmont, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: In September, a regular UV index of 4 translates into these guidelines:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Experience reduced UV exposure by about half when donning a wide-brim hat. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Frequently asked questions
What is the average September temperature in Piedmont?
What is the average humidity in September in Piedmont?
How many days does it rain in September in Piedmont?
When does it start to snow in Piedmont?
What is the average length of the day in September in Piedmont?
What time are sunrise and sunset in September in Piedmont?
How long on average sun shines in September in Piedmont?
What is the UV index reading in September in Piedmont?
Average temperature in September
Piedmont, WY
- Average high temperature in September: 69.3°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is December (26.6°F).
- Average low temperature in September: 48.4°F
The month with the highest average low temperature is July (55.9°F).
The coldest months (with the lowest average low temperature) are January and December (12°F).
Average pressure in September
Piedmont, WY
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.29"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Piedmont, WY
- Average wind speed in September: 9.2mph
The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest month (with the lowest average wind speed) is July (8mph).
Average humidity in September
Piedmont, WY
- Average humidity in September: 38%
The months with the highest relative humidity are January and February (83%).
The months with the lowest relative humidity are July and August (35%).
Average rainfall in September
Piedmont, WY
- Average rainfall in September: 0.63"
The wettest month (with the highest rainfall) is May (1.18").
The driest month (with the least rainfall) is January (0.35").
Average rainfall days in September
Piedmont, WY
- Average rainfall days in September: 6.5 days
The month with the highest number of rainy days is May (11.4 days).
The month with the least rainy days is November (3.5 days).
Average snowfall in September
Piedmont, WY
- Average snowfall in September: 0.51"
The month with the highest snowfall is March (5.04").
The months with the least snowfall are July and August (0").
Average snowfall days in September
Piedmont, WY
- Average snowfall days in September: 0.7 days
The month with the highest number of snowfall days is February (10.4 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Piedmont, WY
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 10h and 2min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 18min).
Average sunshine days in September
Piedmont, WY
- Average sunshine days in September: 19.3 days
The months with the most sunshine days are January and October (22.3 days).
The month with the least sunshine days is July (15.9 days).
Average UV index in September
Piedmont, WY
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in September
Piedmont, WY
- Average cloud cover in September: 13
The month with the most cloud cover is February (Cloud cover 37).
The month with the least cloud cover is August (Cloud cover 12).
Average visibility in September
Piedmont, WY
- 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).
Piedmont, Wyoming, USA
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