September weather forecast
Moroni, UT

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Weather in September

The first month of the autumn, September, is still a pleasant month in Moroni, Utah, with an average temperature ranging between min 45.3°F (7.4°C) and max 71.1°F (21.7°C).

Temperature

The transition into September involves a small decrease in the average high-temperature, dipping slightly from a warm 79.7°F (26.5°C) in August to an agreeable 71.1°F (21.7°C). Moroni documents a substantial shift from daytime warmth, recording an average nighttime temperature of 45.3°F (7.4°C) in September.

Humidity

In September, the average relative humidity in Moroni is 46%.

Rainfall

In Moroni, in September, it is raining for 8.4 days, with typically 0.71" (18mm) of accumulated precipitation. In Moroni, during the entire year, the rain falls for 79.2 days and collects up to 10.31" (262mm) of precipitation.

Snowfall

Months with snowfall are January through May, September through December. September is the first month it typically snows. Throughout September, in the average 0.1 snowfall days, it receives 0.08" (2mm) of snow. In Moroni, Utah, during the entire year, snow falls for 53.2 days and aggregates up to 31.69" (805mm) of snow.

Daylight

In September, the average length of the day is 12h and 26min.
On the first day of September, sunrise is at 6:55 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:09 pm MDT.

Sunshine

The average sunshine in September in Moroni, Utah, is 10.1h.

UV index

In Moroni, 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 radiation for ordinary individuals.
Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Updated: Aug 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in September?

During September, Moroni experiences an average high-temperature of 71.1°F (21.7°C) and a low-temperature of 45.3°F (7.4°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines relative humidity and air temperature, in July is estimated at 80.6°F (27°C).

What is the average humidity in September?

In Moroni, the average relative humidity in September is 46%.

How many days does it rain in September?

In Moroni, in September, it is raining for 8.4 days, with typically 0.71" (18mm) of accumulated precipitation.

When does it start snowing?

September is the first month it typically snows. Throughout September, in the average 0.1 snowfall days, it receives 0.08" (2mm) of snow.

What is the average length of the day in September?

The average day length in September is 12h and 26min.

What time are sunrise and sunset in September?

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

How many hours of sunshine does Moroni have in September?

The average sunshine duration in September is 10.1h.

What is the UV index intensity in September?

The average daily maximum UV index in September 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
Moroni, UT

Average temperature in September - Moroni, UT
  • Average high temperature in September: 71.1°F

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is December (31.3°F).

  • Average low temperature in September: 45.3°F

The month with the highest average low temperature is July (53.2°F).
The coldest month (with the lowest average low temperature) is January (12.7°F).

Average pressure in September
Moroni, UT

Average pressure in September - Moroni, UT
  • Average pressure in September: 29.94"Hg

The month with the highest atmospheric pressure is January (30.25"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed in September
Moroni, UT

Average wind speed in September - Moroni, UT
  • Average wind speed in September: 5.3mph

The windiest months (with the highest average wind speed) are April and June (6.5mph).
The calmest month (with the lowest average wind speed) is January (4.7mph).

Average humidity in September
Moroni, UT

Average humidity in September - Moroni, UT
  • Average humidity in September: 46%

The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is June (38%).

Average rainfall in September
Moroni, UT

Average rainfall in September - Moroni, UT
  • Average rainfall in September: 0.71"

The wettest month (with the highest rainfall) is July (1.65").
The driest month (with the least rainfall) is June (0.39").

Average rainfall days in September
Moroni, UT

Average rainfall days in September - Moroni, UT
  • Average rainfall days in September: 8.4 days

The month with the highest number of rainy days is July (11.4 days).
The month with the least rainy days is December (3.3 days).

Average snowfall in September
Moroni, UT

Average snowfall in September - Moroni, UT
  • Average snowfall in September: 0.08"

The month with the highest snowfall is December (6.46").
The months with the least snowfall are June, July and August (0").

Average snowfall days in September
Moroni, UT

Average snowfall days in September - Moroni, UT
  • Average snowfall days in September: 0.1 days

The month with the highest number of snowfall days is December (11.5 days).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in September / Average sunshine in September - Moroni, 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 48min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).

Average sunshine days in September
Moroni, UT

Average sunshine days in September - Moroni, UT
  • Average sunshine days in September: 19.6 days

The month with the most sunshine days is October (23.3 days).
The month with the least sunshine days is July (15.5 days).

Average UV index in September
Moroni, UT

Average UV index in September - Moroni, 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, April, October, November and December (UV index 2).

Average cloud cover in September
Moroni, UT

Average cloud cover in September - Moroni, UT
  • Average cloud cover in September: 12

The month with the most cloud cover is February (Cloud cover 46).
The months with the least cloud cover are August and September (Cloud cover 12).

Average visibility in September
Moroni, UT

Average visibility in September - Moroni, 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 months with the lowest visibility are January, February and December (4mi).

Moroni, Utah, USA

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