September weather forecastArches National Park, UT
September
Weather in September
September announces the advent of autumn in Arches National Park, with moderate temperatures on the horizon. The average high temperature reduces significantly from August, settling at around 88°F (31.1°C). Decreased daylight hours at an average of 12.4 and a minor drop in rainfall to 0.8" (20mm) signal the onset of the fall season. The pleasant weather presents an appealing season for camping and viewing wildlife. Heading into October, anticipate a more noticeable dip in temperatures and an associated increase in rainfall.Temperature
Arches National Park in September undergoes a mild reduction in the average high-temperature, shifting from August's fiery hot 97°F (36.1°C) to a tropical 88°F (31.1°C). A notable decrease from the day's highest temperature marks September, culminating in an average low of 55°F (12.8°C).Rainfall
In September, the rain falls for 5.2 days. Throughout September, 0.83" (21mm) of precipitation is accumulated. Throughout the year, in Arches National Park, there are 58.4 rainfall days, and 8.74" (222mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
In Arches National Park, the average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 6:48 am and sunset at 7:48 pm. On the last day of September, sunrise is at 7:14 am and sunset at 7:02 pm MDT.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Arches National Park, UT
- Average high temperature in September: 88°F
The warmest month (with the highest average high temperature) is July (100°F).
The month with the lowest average high temperature is January (44°F).
- Average low temperature in September: 55°F
The month with the highest average low temperature is July (67°F).
The coldest month (with the lowest average low temperature) is January (22°F).
Average rainfall in September
Arches National Park, UT
- Average rainfall in September: 0.8"
The wettest month (with the highest rainfall) is October (1.2").
The driest month (with the least rainfall) is June (0.4").
Average rainfall days in September
Arches National Park, UT
- Average rainfall days in September: 5.2 days
The month with the highest number of rainy days is August (6.6 days).
The month with the least rainy days is June (3.1 days).
Average snowfall in September
Arches National Park, UT
- Average snowfall in September: 0"
The month with the highest snowfall is December (2.5").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Arches National Park, UT
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (1.4 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September
Arches National Park, UT
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
