September weather forecastHenefer, UT
September
Weather in September
September, the first month of the autumn in Henefer, is still a pleasant month, with an average temperature fluctuating between 48.6°F (9.2°C) and 71.2°F (21.8°C).Temperature
Henefer observes a minor decrease in the average high-temperature with the arrival of September, falling from August's warm 81°F (27.2°C) to an agreeable 71.2°F (21.8°C). The nighttime temperature during September displays a significant divergence from daily peaks, averaging at a chilly 48.6°F (9.2°C).Humidity
In Henefer, Utah, the average relative humidity in September is 46%.Rainfall
In Henefer, in September, it is raining for 8.5 days, with typically 0.94" (24mm) of accumulated precipitation. In Henefer, during the entire year, the rain falls for 116.8 days and collects up to 18.31" (465mm) of precipitation.Snowfall
Months with snowfall in Henefer 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 Henefer, during the entire year, snow falls for 69.4 days and aggregates up to 70.67" (1795mm) of snow.Daylight
In September, the average length of the day is 12h and 27min.On the first day of September, sunrise is at 6:53 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:08 pm MDT.
Sunshine
In Henefer, the average sunshine in September is 10h.UV index
In Henefer, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: The UV index of 4 in September translates into these instructions:
Adopt protective measures - Suggestions to resist sunburn are offered. The solar radiation around mid-day is intense; avoid the Sun and stay safe. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Henefer, 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
Henefer, 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
Henefer, 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
Henefer, 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
Henefer, 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
Henefer, 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
Henefer, 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
Henefer, 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
Henefer, 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
Henefer, 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
Henefer, 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
Henefer, 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
Henefer, 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).
