September weather forecast
Ephraim, UT

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Weather in September

September, the first month of the autumn in Ephraim, is still a pleasant month, with an average temperature varying between 46.9°F (8.3°C) and 70.5°F (21.4°C).

Temperature

The onset of September brings a small shift in high-temperatures, falling from a moderately hot 78.3°F (25.7°C) in August to a pleasant 70.5°F (21.4°C). Ephraim reports a marked divergence from daytime peaks throughout September, with lows averaging at a frosty 46.9°F (8.3°C).

Humidity

In Ephraim, the average relative humidity in September is 43%.

Rainfall

In Ephraim, in September, during 9.6 rainfall days, 0.94" (24mm) of precipitation is typically accumulated. Throughout the year, in Ephraim, Utah, there are 115.2 rainfall days, and 15.71" (399mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, September through December. September is the first month it typically snows. Throughout September, in the average 0.2 snowfall days, it receives 0.24" (6mm) of snow. In Ephraim, during the entire year, snow falls for 66.3 days and aggregates up to 48.94" (1243mm) of snow.

Daylight

The average length of the day in September in Ephraim 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, Utah, 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 unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum daily UV index, 4 in September, converts into the following recommendations:
Act with care - Obligation to protect against skin and eye damage is highlighted. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
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Frequently asked questions

What is the usual temperature for Ephraim in September?

The high-temperature during September is 70.5°F (21.4°C) and the low-temperature is 46.9°F (8.3°C).

What is the average humidity in September in Ephraim?

In September, the average relative humidity in Ephraim, Utah, is 43%.

How many days does it rain in September in Ephraim?

In September, in Ephraim, the rain falls for 9.6 days. Throughout September, 0.94" (24mm) of precipitation is accumulated.

When does it start to snow in Ephraim?

September is the first month it typically snows in Ephraim. Throughout September, in the average 0.2 snowfall days, it receives 0.24" (6mm) of snow.

What is the average length of the day in September in Ephraim?

In Ephraim, the average day length in September is 12h and 26min.

When is the sunrise / sunset in September in Ephraim?

In September, on the first day of the month, sunrise is at 6:55 am and sunset at 7:56 pm. On the last day of the month, in Ephraim, Utah, sunrise is at 7:22 am and sunset at 7:09 pm MDT.

How long on average sun shines in September in Ephraim?

In September, the average sunshine duration in Ephraim is 10.1h.

What is the UV index reading in September in Ephraim?

The average daily maximum UV index in September in Ephraim, Utah, is 4. A UV Index reading of 3 to 5 represents a medium health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Ephraim, UT

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).

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Average pressure in September
Ephraim, UT

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).

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Average wind speed in September
Ephraim, UT

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).

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Average humidity in September
Ephraim, UT

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%).

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Average rainfall in September
Ephraim, UT

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").

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Average rainfall days in September
Ephraim, UT

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).

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Average snowfall in September
Ephraim, UT

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").

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Average snowfall days in September
Ephraim, UT

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).

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Average daylight in September /
Average sunshine in September
Ephraim, UT

Average daylight in September / Average sunshine in September - Ephraim, UT
  • Average daylight in September: 12h and 2min

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 1min

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).

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Average sunshine days in September
Ephraim, UT

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).

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Average UV index in September
Ephraim, UT

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).

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Average cloud cover in September
Ephraim, UT

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).

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Average visibility in September
Ephraim, UT

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).

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Ephraim, Utah, USA

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