September weather forecastWales, UT
September
Weather in September
September, the first month of the autumn in Wales, is also an agreeable month, with temperature in the range of an average low of 45.3°F (7.4°C) and an average high of 71.1°F (21.7°C).Temperature
Wales's September weather features a light decline in high-temperatures, reducing from a warm 79.7°F (26.5°C) in August to an agreeable 71.1°F (21.7°C). September nights in Wales bring a significant cooling from the heat of the day, with averages of 45.3°F (7.4°C).Humidity
The average relative humidity in September is 46%.Rainfall
In Wales, Utah, in September, during 8.4 rainfall days, 0.71" (18mm) of precipitation is typically accumulated. In Wales, during the entire year, the rain falls for 79.2 days and collects up to 10.31" (262mm) 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 0.1 snowfall days, it receives 0.08" (2mm) of snow. In Wales, during the entire year, snow falls for 53.2 days and aggregates up to 31.69" (805mm) of snow.Daylight
In September, the average length of the day is 12h and 26min.On the first day of September, sunrise is at 6:55 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:10 pm MDT.
Sunshine
The average sunshine in September is 10.1h.UV index
In Wales, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: The daily maximum UV index of 4 in September interprets into the following advice:
Take measures. Individuals with light skin might experience burns in under 30 minutes. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Wales, UT
- Average high temperature in September: 71.1°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is December (31.3°F).
- Average low temperature in September: 45.3°F
The month with the highest average low temperature is July (53.2°F).
The coldest month (with the lowest average low temperature) is January (12.7°F).
Average pressure in September
Wales, UT
- Average pressure in September: 29.94"Hg
The month with the highest atmospheric pressure is January (30.25"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in September
Wales, UT
- Average wind speed in September: 5.3mph
The windiest months (with the highest average wind speed) are April and June (6.5mph).
The calmest month (with the lowest average wind speed) is January (4.7mph).
Average humidity in September
Wales, UT
- Average humidity in September: 46%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is June (38%).
Average rainfall in September
Wales, UT
- Average rainfall in September: 0.71"
The wettest month (with the highest rainfall) is July (1.65").
The driest month (with the least rainfall) is June (0.39").
Average rainfall days in September
Wales, UT
- Average rainfall days in September: 8.4 days
The month with the highest number of rainy days is July (11.4 days).
The month with the least rainy days is December (3.3 days).
Average snowfall in September
Wales, UT
- Average snowfall in September: 0.08"
The month with the highest snowfall is December (6.46").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Wales, UT
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is December (11.5 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Wales, UT
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 10h and 6min
The month with the most sunshine is August (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in September
Wales, UT
- Average sunshine days in September: 19.6 days
The month with the most sunshine days is October (23.3 days).
The month with the least sunshine days is July (15.5 days).
Average UV index in September
Wales, UT
- Average UV index in September: 4
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, April, October, November and December (UV index 2).
Average cloud cover in September
Wales, UT
- Average cloud cover in September: 12
The month with the most cloud cover is February (Cloud cover 46).
The months with the least cloud cover are August and September (Cloud cover 12).
Average visibility in September
Wales, UT
- 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 (4mi).





