Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September sees a slight reduction in average high-temperature, with a shift from a warm 80.1°F (26.7°C) in August to a pleasant 72.3°F (22.4°C). In Monroe, the September nights descend to a significantly cooler average of 49.3°F (9.6°C) compared to daytime highs.Humidity
In September, the average relative humidity is 40%.Rainfall
In Monroe, in September, it is raining for 8.5 days, with typically 0.75" (19mm) of accumulated precipitation. Throughout the year, there are 113.1 rainfall days, and 14.72" (374mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, September through December. September is the first month it typically snows in Monroe. Throughout September, in the average 0.1 snowfall days, it receives 0.12" (3mm) of snow. In Monroe, during the entire year, snow falls for 55.6 days and aggregates up to 44.8" (1138mm) of snow.Daylight
In September, the average length of the day is 12h and 25min.On the first day of the month, sunrise is at 6:58 am and sunset at 7:58 pm. On the last day of September, sunrise is at 7:24 am and sunset at 7:12 pm MDT.
Sunshine
The average sunshine in September is 10h.UV index
In Monroe, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: During September, 4 as the daily maximum UV index converts into the following advice:
Take precautions - Protection against sunburn is recommended. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Monroe?
What is the average humidity in September?
How many days does it rain in September?
When does it start snowing?
How many hours of daylight does Monroe have in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
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).
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).
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).
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%).
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").
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).
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").
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).
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).
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).
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).
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).
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).
Monroe, Utah, USA
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