September weather forecastCroydon, UT
September
Weather in September
The first month of the autumn, September, is also an agreeable month in Croydon, Utah, with temperature in the range of an average low of 48.6°F (9.2°C) and an average high of 71.2°F (21.8°C).Temperature
The beginning of September marks a decrease in the average high-temperature, transitioning from a warm 81°F (27.2°C) in August to a pleasant 71.2°F (21.8°C). Croydon endures a clear shift from daytime heat to a mean low-temperature of 48.6°F (9.2°C) during September nights.Humidity
The average relative humidity in September is 46%.Rainfall
In Croydon, Utah, in September, it is raining for 8.5 days, with typically 0.94" (24mm) of accumulated precipitation. Throughout the year, there are 116.8 rainfall days, and 18.31" (465mm) 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 0.1 snowfall days, it receives 0.28" (7mm) of snow. In Croydon, during the entire year, snow falls for 69.4 days and aggregates up to 70.67" (1795mm) of snow.Daylight
In Croydon, the average length of the day in September is 12h and 27min.On the first day of the month, sunrise is at 6:53 am and sunset at 7:58 pm. On the last day of September, sunrise is at 7:22 am and sunset at 7:09 pm MDT.
Sunshine
The average sunshine in September is 10h.UV index
In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: In September, the average maximum UV index of 4 translates into the following recommendations:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Croydon, UT
- Average high temperature in September: 71.2°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is December (31.8°F).
- Average low temperature in September: 48.6°F
The month with the highest average low temperature is July (55.9°F).
The coldest month (with the lowest average low temperature) is January (17.6°F).
Average pressure in September
Croydon, UT
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.28"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Croydon, UT
- Average wind speed in September: 5.7mph
The windiest month (with the highest average wind speed) is April (6.1mph).
The calmest month (with the lowest average wind speed) is January (4.6mph).
Average humidity in September
Croydon, UT
- Average humidity in September: 46%
The month with the highest relative humidity is January (86%).
The months with the lowest relative humidity are July and August (40%).
Average rainfall in September
Croydon, UT
- Average rainfall in September: 0.94"
The wettest month (with the highest rainfall) is February (2.32").
The driest month (with the least rainfall) is August (0.55").
Average rainfall days in September
Croydon, UT
- Average rainfall days in September: 8.5 days
The month with the highest number of rainy days is April (14.6 days).
The month with the least rainy days is July (7 days).
Average snowfall in September
Croydon, UT
- Average snowfall in September: 0.28"
The month with the highest snowfall is January (16.22").
The months with the least snowfall are July and August (0").
Average snowfall days in September
Croydon, UT
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is January (14.7 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Croydon, UT
- 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 18min).
- Average sunshine in September: 10h and 0min
The months with the most sunshine are June, July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 30min).
Average sunshine days in September
Croydon, UT
- Average sunshine days in September: 17.5 days
The month with the most sunshine days is October (19.7 days).
The month with the least sunshine days is February (9.8 days).
Average UV index in September
Croydon, UT
- Average UV index in September: 4
The month with the highest UV index is July (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
Croydon, UT
- Average cloud cover in September: 13
The month with the most cloud cover is February (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 10).
Average visibility in September
Croydon, 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 month with the lowest visibility is January (4mi).





