September weather forecast
Mapleton, UT

Share

Weather in September

The first month of the autumn, September, is still a warm month in Mapleton, Utah, with an average temperature varying between 74.3°F (23.5°C) and 47.3°F (8.5°C).

Temperature

As September commences, the average high-temperature shows a reduction, transitioning from a moderately hot 83.5°F (28.6°C) in August to a still warm 74.3°F (23.5°C). Mapleton reports a substantial plunge from daytime highs during the nights of September, with an average low-temperature of 47.3°F (8.5°C).

Humidity

The average relative humidity in September is 44%.

Rainfall

In Mapleton, during September, the rain falls for 7.5 days and regularly aggregates up to 0.59" (15mm) of precipitation. Throughout the year, there are 112.5 rainfall days, and 11.93" (303mm) of precipitation is accumulated.

Snowfall

In Mapleton, snow does not fall in June through September.

Daylight

In September, the average length of the day is 12h and 26min.
On the first day of the month, sunrise is at 6:54 am and sunset at 7:57 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

The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the average person.
Note: In September, a daily UV index of 4 turns into the following recommendations:
Ensure safety - Sun damage prevention is strongly urged. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Updated: Jun 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in September in Mapleton?

The average high-temperature, in September, in Mapleton, is 74.3°F (23.5°C), while the average low-temperature is 47.3°F (8.5°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines relative humidity and air temperature, in August is estimated at 82.4°F (28°C).

What is the average humidity in September?

The average relative humidity in September is 44%.

How much does it rain in September?

In Mapleton, Utah, in September, it is raining for 7.5 days, with typically 0.59" (15mm) of accumulated precipitation.

When it does not snow?

June through September are months without snowfall.

Does it snow in September?

In Mapleton, in September, it doesn't snow. In October, it regularly snows.

What is the average length of the day in September?

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

When are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:54 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:09 pm MDT.

How long on average sun shines in September?

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

What is the UV index intensity in September?

In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Mapleton, UT

Average temperature in September - Mapleton, UT
  • Average high temperature in September: 74.3°F

The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is December (32.4°F).

  • Average low temperature in September: 47.3°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 (14.4°F).

Average pressure in September
Mapleton, UT

Average pressure in September - Mapleton, UT
  • Average pressure in September: 29.95"Hg

The month with the highest atmospheric pressure is January (30.27"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).

Average wind speed in September
Mapleton, UT

Average wind speed in September - Mapleton, UT
  • Average wind speed in September: 5.5mph

The windiest month (with the highest average wind speed) is June (5.9mph).
The calmest month (with the lowest average wind speed) is January (4.5mph).

Average humidity in September
Mapleton, UT

Average humidity in September - Mapleton, UT
  • Average humidity in September: 44%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is July (39%).

Average rainfall in September
Mapleton, UT

Average rainfall in September - Mapleton, UT
  • Average rainfall in September: 0.59"

The wettest months (with the highest rainfall) are January and December (1.46").
The driest month (with the least rainfall) is August (0.51").

Average rainfall days in September
Mapleton, UT

Average rainfall days in September - Mapleton, UT
  • Average rainfall days in September: 7.5 days

The month with the highest number of rainy days is March (13.3 days).
The month with the least rainy days is June (6 days).

Average snowfall in September
Mapleton, UT

Average snowfall in September - Mapleton, UT
  • Average snowfall in September: 0"

The month with the highest snowfall is January (8.66").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Mapleton, UT

Average snowfall days in September - Mapleton, UT
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is December (12.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 0min).
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).

Average sunshine days in September
Mapleton, UT

Average sunshine days in September - Mapleton, UT
  • Average sunshine days in September: 18.6 days

The month with the most sunshine days is June (21.3 days).
The month with the least sunshine days is February (10.9 days).

Average UV index in September
Mapleton, UT

Average UV index in September - Mapleton, 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, November and December (UV index 2).

Average cloud cover in September
Mapleton, UT

Average cloud cover in September - Mapleton, UT
  • Average cloud cover in September: 11

The month with the most cloud cover is February (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 10).

Average visibility in September
Mapleton, UT

Average visibility in September - Mapleton, 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).

Mapleton, Utah, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location