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
As September arrives, Bucknum's weather displays a decrease in high-temperatures, transitioning from August's 82.6°F (28.1°C) to a still moderately hot 73.4°F (23°C). September sees the temperature falling to a mean low of 52.3°F (11.3°C).Humidity
In September, the average relative humidity in Bucknum is 38%.Rainfall
In Bucknum, during September, the rain falls for 6.6 days and regularly aggregates up to 0.39" (10mm) of precipitation. In Bucknum, during the entire year, the rain falls for 81 days and collects up to 8.98" (228mm) of precipitation.Snowfall
Months with snowfall are January through May, September through December. September is the first month it typically snows. Throughout September, in the average 0.2 snowfall days, it receives 0.08" (2mm) of snow. Throughout the year, in Bucknum, there are 62.6 snowfall days, and 31.65" (804mm) of snow is accumulated.Daylight
In September, the average length of the day in Bucknum is 12h and 29min.On the first day of the month, sunrise is at 6:31 am and sunset at 7:40 pm. On the last day of September, sunrise is at 7:03 am and sunset at 6:48 pm MDT.
Sunshine
The average sunshine in September is 11h.UV index
In Bucknum, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: The UV index of 4 in September translates into these instructions:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Bucknum in September?
What is the average humidity in September in Bucknum?
How much does it rain in Bucknum in September?
When does it start to snow in Bucknum?
What is the average length of the day in September in Bucknum?
When is the sunrise / sunset in September in Bucknum?
How long on average sun shines in September in Bucknum?
What is the UV index reading in September in Bucknum?
Average temperature in September
Bucknum, WY
- Average high temperature in September: 73.4°F
The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is December (28.6°F).
- Average low temperature in September: 52.3°F
The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is December (15.1°F).
Average pressure in September
Bucknum, WY
- Average pressure in September: 29.95"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in September
Bucknum, WY
- Average wind speed in September: 9.3mph
The windiest month (with the highest average wind speed) is January (11.9mph).
The calmest month (with the lowest average wind speed) is August (8.4mph).
Average humidity in September
Bucknum, WY
- Average humidity in September: 38%
The month with the highest relative humidity is January (79%).
The month with the lowest relative humidity is August (36%).
Average rainfall in September
Bucknum, WY
- Average rainfall in September: 0.39"
The wettest month (with the highest rainfall) is May (1.34").
The driest month (with the least rainfall) is August (0.35").
Average rainfall days in September
Bucknum, WY
- Average rainfall days in September: 6.6 days
The month with the highest number of rainy days is May (10.9 days).
The month with the least rainy days is December (3.3 days).
Average snowfall in September
Bucknum, WY
- Average snowfall in September: 0.08"
The month with the highest snowfall is March (5.55").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Bucknum, WY
- Average snowfall days in September: 0.2 days
The month with the highest number of snowfall days is February (11.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Bucknum, WY
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 11h and 0min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is February (Average sunshine: 6h and 12min).
Average sunshine days in September
Bucknum, WY
- Average sunshine days in September: 20.1 days
The month with the most sunshine days is August (20.3 days).
The month with the least sunshine days is April (13.6 days).
Average UV index in September
Bucknum, WY
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in September
Bucknum, WY
- Average cloud cover in September: 14
The month with the most cloud cover is February (Cloud cover 34).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in September
Bucknum, 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).
Bucknum, Wyoming, USA
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