September weather forecastEphraim, UT
September
Weather in September
September, the first month of the autumn in Ephraim, is also an agreeable month, with an average temperature varying between 70.5°F (21.4°C) and 46.9°F (8.3°C).Temperature
September witnesses a gentle descent in average high-temperature, descending from August's warm 78.3°F (25.7°C) to a pleasant 70.5°F (21.4°C). In September, the temperature sees a substantial plunge from daytime highs to a low average of 46.9°F (8.3°C).Humidity
In Ephraim, the average relative humidity in September is 43%.Rainfall
In September, in Ephraim, the rain falls for 9.6 days. Throughout September, 0.94" (24mm) of precipitation is accumulated. Throughout the year, there are 115.2 rainfall days, and 15.71" (399mm) of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall. September is the first month it typically snows. Throughout September, in the average 0.2 snowfall days, it receives 0.24" (6mm) of snow. Throughout the year, there are 66.3 snowfall days, and 48.94" (1243mm) of snow is accumulated.Daylight
In September, the average length of the day is 12h and 26min.On the first day of the month, sunrise is at 6:55 am and sunset at 7:56 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 10.1h.UV index
In Ephraim, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: The UV index of 4 in September translates into these instructions:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Opt for tightly woven and loose clothing to enhance protection from the Sun. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Ephraim, UT
- Average high temperature in September: 70.5°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The months with the lowest average high temperature are January and December (31.5°F).
- Average low temperature in September: 46.9°F
The month with the highest average low temperature is July (55°F).
The coldest month (with the lowest average low temperature) is January (15.3°F).
Average pressure in September
Ephraim, UT
- Average pressure in September: 29.94"Hg
The month with the highest atmospheric pressure is January (30.24"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in September
Ephraim, UT
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is April (6.8mph).
The calmest month (with the lowest average wind speed) is January (4.8mph).
Average humidity in September
Ephraim, UT
- Average humidity in September: 43%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is June (35%).
Average rainfall in September
Ephraim, UT
- Average rainfall in September: 0.94"
The wettest month (with the highest rainfall) is March (1.73").
The driest month (with the least rainfall) is June (0.59").
Average rainfall days in September
Ephraim, UT
- Average rainfall days in September: 9.6 days
The month with the highest number of rainy days is July (12.7 days).
The month with the least rainy days is June (6.3 days).
Average snowfall in September
Ephraim, UT
- Average snowfall in September: 0.24"
The month with the highest snowfall is January (9.92").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Ephraim, UT
- Average snowfall days in September: 0.2 days
The month with the highest number of snowfall days is December (14.1 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Ephraim, 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 54min).
The month with the least sunshine is January (Average sunshine: 5h and 36min).
Average sunshine days in September
Ephraim, UT
- Average sunshine days in September: 16.9 days
The month with the most sunshine days is June (20.8 days).
The month with the least sunshine days is February (11.2 days).
Average UV index in September
Ephraim, 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, March, April, October, November and December (UV index 2).
Average cloud cover in September
Ephraim, UT
- Average cloud cover in September: 11
The months with the most cloud cover are January and February (Cloud cover 40).
The months with the least cloud cover are August and September (Cloud cover 11).
Average visibility in September
Ephraim, 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).
