September weather forecast
Monroe, UT

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Weather in September

September, the first month of the autumn in Monroe, is still a pleasant month, with an average temperature ranging between min 49.3°F (9.6°C) and max 72.3°F (22.4°C).

Temperature

A minor decrease in the average high-temperature is observed during September, shifting from a warm 80.1°F (26.7°C) in August to an agreeable 72.3°F (22.4°C). Monroe experiences a significant contrast between daily highs and an average nighttime temperature of 49.3°F (9.6°C) during September.

Humidity

In Monroe, the average relative humidity in September is 40%.

Rainfall

In September, in Monroe, Utah, the rain falls for 8.5 days. Throughout September, 0.75" (19mm) of precipitation is accumulated. Throughout the year, there are 113.1 rainfall days, and 14.72" (374mm) of precipitation is accumulated.

Snowfall

January through May, September through December are months with snowfall in Monroe. September is the first month it typically snows. Throughout September, in the average 0.1 snowfall days, it receives 0.12" (3mm) of snow. Throughout the year, there are 55.6 snowfall days, and 44.8" (1138mm) of snow is accumulated.

Daylight

The average length of the day in September in Monroe is 12h and 25min.
On the first day of September in Monroe, sunrise is at 6:58 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 7:12 pm MDT.

Sunshine

In September, the average sunshine is 10h.

UV index

The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: The UV index of 4 during September leads to these advisories:
Undertake protective steps - Preventing sun damage is advised. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
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Frequently asked questions

What is the usual temperature for Monroe in September?

In Monroe, in September, the average high-temperature is 72.3°F (22.4°C), and the average low-temperature is 49.3°F (9.6°C).

What is the average humidity in September in Monroe?

In Monroe, the average relative humidity in September is 40%.

How many days does it rain in September in Monroe?

In Monroe, during September, the rain falls for 8.5 days and regularly aggregates up to 0.75" (19mm) of precipitation.

When does it start to snow in Monroe?

September is the first month it typically snows in Monroe, Utah. Throughout September, in the average 0.1 snowfall days, it receives 0.12" (3mm) of snow.

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

The average day length in September in Monroe is 12h and 25min.

When are sunrise and sunset in September in Monroe?

On the first day of September, sunrise is at 6:58 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 7:12 pm MDT.

How many hours of sunshine does Monroe have in September?

The average sunshine duration in September in Monroe is 10h.

What is the UV index reading in September in Monroe?

The average daily maximum UV index in September is 4. A UV Index estimate 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
Monroe, UT

Average temperature in September - Monroe, UT
  • Average high temperature in September: 72.3°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.4°F).

  • Average low temperature in September: 49.3°F

The month with the highest average low temperature is July (58.1°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).

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Average pressure in September
Monroe, UT

Average pressure in September - Monroe, 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
Monroe, UT

Average wind speed in September - Monroe, UT
  • Average wind speed in September: 6.1mph

The windiest month (with the highest average wind speed) is June (7.4mph).
The calmest month (with the lowest average wind speed) is January (4.8mph).

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Average humidity in September
Monroe, UT

Average humidity in September - Monroe, UT
  • Average humidity in September: 40%

The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is June (31%).

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Average rainfall in September
Monroe, UT

Average rainfall in September - Monroe, UT
  • Average rainfall in September: 0.75"

The wettest month (with the highest rainfall) is March (1.85").
The driest month (with the least rainfall) is June (0.51").

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Average rainfall days in September
Monroe, UT

Average rainfall days in September - Monroe, UT
  • Average rainfall days in September: 8.5 days

The month with the highest number of rainy days is July (14.3 days).
The month with the least rainy days is November (5.7 days).

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Average snowfall in September
Monroe, UT

Average snowfall in September - Monroe, UT
  • Average snowfall in September: 0.12"

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

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Average snowfall days in September
Monroe, UT

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

The month with the highest number of snowfall days is December (12.6 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
Monroe, UT

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

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in September: 10h and 0min

The month with the most sunshine is August (Average sunshine: 11h and 54min).
The months with the least sunshine are January and December (Average sunshine: 6h and 0min).

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Average sunshine days in September
Monroe, UT

Average sunshine days in September - Monroe, UT
  • Average sunshine days in September: 17.8 days

The month with the most sunshine days is June (21.5 days).
The month with the least sunshine days is July (12.3 days).

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Average UV index in September
Monroe, UT

Average UV index in September - Monroe, UT
  • Average UV index in September: 4

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in September
Monroe, UT

Average cloud cover in September - Monroe, UT
  • Average cloud cover in September: 10

The month with the most cloud cover is December (Cloud cover 36).
The months with the least cloud cover are August and September (Cloud cover 10).

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Average visibility in September
Monroe, UT

Average visibility in September - Monroe, 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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Monroe, Utah, USA

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