September weather forecastPinedale, WY
September
Weather in September
With temperatures seeing a dramatic drop to between 44.1°F (6.7°C) and 66.4°F (19.1°C), September in Pinedale, Wyoming signals the advent of the early fall. A transitional month from the blazing summer to the crisp fall, September brings about an intriguing dilemma - the wardrobe overhaul. The earlier luxuriant hours of daylight assumed a reduction to 12.5 hours, while the wind pace steadies at 5.8mph (9.3km/h). The slight chill in the air seeped in by the evening further intensifies the fall feels. The golden hues of the autumn deliver a sumptuous visual feast, making September a sought-after period to visit.Temperature
Pinedale's September weather features a light decline in high-temperatures, reducing from a moderately hot 75°F (23.9°C) in August to a refreshing 66.4°F (19.1°C). Pinedale's average nighttime temperature descends significantly from the day's peak in September, settling at a frosty 44.1°F (6.7°C).Humidity
In September, the average relative humidity is 44%.Rainfall
In Pinedale, during September, the rain falls for 8.8 days and regularly aggregates up to 0.83" (21mm) of precipitation. Throughout the year, there are 109.9 rainfall days, and 10.59" (269mm) of precipitation is accumulated.Snowfall
January through June, September through December are months with snowfall in Pinedale. September is the first month it typically snows. Throughout September, in the average 0.7 snowfall days, it receives 0.59" (15mm) of snow. In Pinedale, during the entire year, snow falls for 89 days and aggregates up to 43.43" (1103mm) of snow.Daylight
In September, the average length of the day in Pinedale is 12h and 29min.On the first day of the month, sunrise is at 6:44 am and sunset at 7:53 pm. On the last day of September, sunrise is at 7:16 am and sunset at 7:01 pm MDT.
Sunshine
In September, the average sunshine is 10.7h.UV index
In September, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: During September, 3 as the daily maximum UV index converts into the following advice:
Take precautions - Protection against sun damage is advised. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Pinedale, WY
- Average high temperature in September: 66.4°F
The warmest month (with the highest average high temperature) is July (76.8°F).
The month with the lowest average high temperature is December (23.7°F).
- Average low temperature in September: 44.1°F
The month with the highest average low temperature is July (52°F).
The coldest month (with the lowest average low temperature) is December (5°F).
Average pressure in September
Pinedale, WY
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.28"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Pinedale, WY
- Average wind speed in September: 5.8mph
The windiest month (with the highest average wind speed) is June (7mph).
The calmest month (with the lowest average wind speed) is December (5.3mph).
Average humidity in September
Pinedale, WY
- Average humidity in September: 44%
The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is August (39%).
Average rainfall in September
Pinedale, WY
- Average rainfall in September: 0.83"
The wettest month (with the highest rainfall) is May (1.65").
The driest months (with the least rainfall) are July and August (0.63").
Average rainfall days in September
Pinedale, WY
- Average rainfall days in September: 8.8 days
The month with the highest number of rainy days is May (14.3 days).
The month with the least rainy days is November (6.9 days).
Average snowfall in September
Pinedale, WY
- Average snowfall in September: 0.59"
The month with the highest snowfall is April (7.36").
The months with the least snowfall are July and August (0").
Average snowfall days in September
Pinedale, WY
- Average snowfall days in September: 0.7 days
The months with the highest number of snowfall days are February and March (15.1 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Pinedale, WY
- Average daylight in September: 12h and 30min
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: 10h and 42min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 6h and 12min).
Average sunshine days in September
Pinedale, WY
- Average sunshine days in September: 17.5 days
The month with the most sunshine days is October (19.6 days).
The month with the least sunshine days is May (10.9 days).
Average UV index in September
Pinedale, WY
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in September
Pinedale, WY
- Average cloud cover in September: 14
The month with the most cloud cover is February (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 12).
Average visibility in September
Pinedale, WY
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and February (4mi).
