September weather forecastOld Haymaker Place, WY
September
Weather in September
The first month of the autumn, September, is also an agreeable month in Old Haymaker Place, Wyoming, with an average temperature varying between 45.3°F (7.4°C) and 68.2°F (20.1°C).Temperature
With the onset of September, Old Haymaker Place's average high-temperature slightly adjusts, moderately receding from August's moderately hot 76.3°F (24.6°C) to an agreeable 68.2°F (20.1°C). Throughout the month of September, Old Haymaker Place observes a dramatic downturn from the daytime peak temperatures, expecting an average low of 45.3°F (7.4°C).Humidity
In Old Haymaker Place, the average relative humidity in September is 44%.Rainfall
In Old Haymaker Place, during September, the rain falls for 9.1 days and regularly aggregates up to 0.79" (20mm) of precipitation. Throughout the year, there are 105.6 rainfall days, and 13.94" (354mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through June, September through December. September is the first month it typically snows. Throughout September, in the average 0.5 snowfall days, it receives 0.24" (6mm) of snow. In Old Haymaker Place, during the entire year, snow falls for 100.7 days and aggregates up to 54.45" (1383mm) of snow.Daylight
The average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 6:34 am and sunset at 7:40 pm. On the last day of September, sunrise is at 7:04 am and sunset at 6:50 pm MDT.
Sunshine
The average sunshine in September is 11h.UV index
In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Exercise caution. Those with pale skin may experience burns in less than half an hour. To protect against the Sun's most potent rays, avoid direct exposure around midday. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Old Haymaker Place, WY
- Average high temperature in September: 68.2°F
The warmest month (with the highest average high temperature) is July (77.9°F).
The month with the lowest average high temperature is December (25.7°F).
- Average low temperature in September: 45.3°F
The month with the highest average low temperature is July (52.3°F).
The coldest months (with the lowest average low temperature) are January and December (12.9°F).
Average pressure in September
Old Haymaker Place, WY
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.23"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in September
Old Haymaker Place, WY
- Average wind speed in September: 10.1mph
The windiest month (with the highest average wind speed) is November (11.8mph).
The calmest month (with the lowest average wind speed) is July (9.1mph).
Average humidity in September
Old Haymaker Place, WY
- Average humidity in September: 44%
The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is August (41%).
Average rainfall in September
Old Haymaker Place, WY
- Average rainfall in September: 0.79"
The wettest month (with the highest rainfall) is April (1.97").
The driest month (with the least rainfall) is August (0.75").
Average rainfall days in September
Old Haymaker Place, WY
- Average rainfall days in September: 9.1 days
The month with the highest number of rainy days is May (14.7 days).
The month with the least rainy days is November (4.9 days).
Average snowfall in September
Old Haymaker Place, WY
- Average snowfall in September: 0.24"
The month with the highest snowfall is April (9.76").
The months with the least snowfall are July and August (0").
Average snowfall days in September
Old Haymaker Place, WY
- Average snowfall days in September: 0.5 days
The month with the highest number of snowfall days is February (17.1 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Old Haymaker Place, WY
- Average daylight in September: 12h and 30min
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 12min).
- Average sunshine in September: 11h and 0min
The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 30min).
Average sunshine days in September
Old Haymaker Place, WY
- Average sunshine days in September: 16.3 days
The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is February (9.4 days).
Average UV index in September
Old Haymaker Place, WY
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Old Haymaker Place, WY
- Average cloud cover in September: 14
The month with the most cloud cover is February (Cloud cover 47).
The months with the least cloud cover are August and September (Cloud cover 14).
Average visibility in September
Old Haymaker Place, WY
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
