September weather forecastSand Draw, WY
September
Weather in September
The first month of the autumn, September, is still a warm month in Sand Draw, Wyoming, with temperature in the range of an average low of 52.9°F (11.6°C) and an average high of 75.6°F (24.2°C).Temperature
In September, the meteorological conditions alter, with the average high-temperature shifting from a warm 84.9°F (29.4°C) in August to a still moderately hot 75.6°F (24.2°C). Sand Draw encounters a significant temperature differential, with an average low-temperature of 52.9°F (11.6°C) during September nights.Humidity
The average relative humidity in September is 35%.Rainfall
In Sand Draw, in September, during 6.3 rainfall days, 0.43" (11mm) of precipitation is typically accumulated. Throughout the year, there are 67.6 rainfall days, and 6.81" (173mm) of precipitation is accumulated.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. In Sand Draw, during the entire year, snow falls for 42.7 days and aggregates up to 24.92" (633mm) of snow.Daylight
In September, the average length of the day is 12h and 29min.On the first day of the month, sunrise is at 6:38 am and sunset at 7:46 pm. On the last day of September, sunrise is at 7:09 am and sunset at 6:55 pm MDT.
Sunshine
The average sunshine in September is 10.8h.UV index
In Sand Draw, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum UV index of 4 in September translates into the following recommendations:
Take necessary precautions - Defending against sun damage is advocated. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sand Draw, WY
- Average high temperature in September: 75.6°F
The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is December (30.9°F).
- Average low temperature in September: 52.9°F
The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (14.5°F).
Average pressure in September
Sand Draw, WY
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.22"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in September
Sand Draw, WY
- Average wind speed in September: 6.5mph
The windiest month (with the highest average wind speed) is June (7.5mph).
The calmest month (with the lowest average wind speed) is January (5.5mph).
Average humidity in September
Sand Draw, WY
- Average humidity in September: 35%
The month with the highest relative humidity is January (77%).
The months with the lowest relative humidity are July and August (31%).
Average rainfall in September
Sand Draw, WY
- Average rainfall in September: 0.43"
The wettest month (with the highest rainfall) is May (1.42").
The driest month (with the least rainfall) is January (0.24").
Average rainfall days in September
Sand Draw, WY
- Average rainfall days in September: 6.3 days
The month with the highest number of rainy days is May (9.9 days).
The month with the least rainy days is January (2.5 days).
Average snowfall in September
Sand Draw, WY
- Average snowfall in September: 0.08"
The month with the highest snowfall is April (5.39").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Sand Draw, WY
- Average snowfall days in September: 0.2 days
The month with the highest number of snowfall days is February (7.8 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Sand Draw, 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 48min
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 36min).
Average sunshine days in September
Sand Draw, WY
- Average sunshine days in September: 19.6 days
The month with the most sunshine days is January (24.5 days).
The month with the least sunshine days is April (15.5 days).
Average UV index in September
Sand Draw, WY
- Average UV index in September: 4
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Sand Draw, WY
- Average cloud cover in September: 13
The months with the most cloud cover are February and April (Cloud cover 28).
The months with the least cloud cover are July and August (Cloud cover 12).
Average visibility in September
Sand Draw, 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).
