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
In September, the average high-temperature marginally decreases from a warm 79.9°F (26.6°C) in August to an agreeable 72°F (22.2°C). Redmond encounters a substantial decline from its daily high to a low-temperature of 48.2°F (9°C) during September nights.Humidity
In Redmond, the average relative humidity in September is 41%.Rainfall
In Redmond, in September, it is raining for 7.8 days, with typically 0.59" (15mm) of accumulated precipitation. In Redmond, during the entire year, the rain falls for 111.5 days and collects up to 14.49" (368mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. September is the first month it typically snows. Throughout September, in the average 0.2 snowfall days, it receives 0.2" (5mm) of snow. In Redmond, during the entire year, snow falls for 56.9 days and aggregates up to 44.41" (1128mm) of snow.Daylight
In September, the average length of the day is 12h and 26min.On the first day of the month, sunrise is at 6:57 am and sunset at 7:57 pm. On the last day of September, in Redmond, sunrise is at 7:23 am and sunset at 7:11 pm MDT.
Sunshine
The average sunshine in September is 10h.UV index
In Redmond, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum high daily UV index of 4 during September translates into the following directions:
Be vigilant - Preventing sunburn is recommended. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Redmond in September?
What is the average humidity in September?
How much does it rain in September?
When does it start snowing?
How many hours of daylight does Redmond have in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Redmond have in September?
What is the UV index intensity in September?
Average temperature in September
Redmond, UT
- Average high temperature in September: 72°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.1°F).
- Average low temperature in September: 48.2°F
The month with the highest average low temperature is July (57°F).
The coldest months (with the lowest average low temperature) are January and December (16.3°F).
Average pressure in September
Redmond, 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
Redmond, UT
- Average wind speed in September: 5.5mph
The windiest months (with the highest average wind speed) are April and June (6.8mph).
The calmest month (with the lowest average wind speed) is January (4.7mph).
Average humidity in September
Redmond, UT
- Average humidity in September: 41%
The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is June (32%).
Average rainfall in September
Redmond, UT
- Average rainfall in September: 0.59"
The wettest month (with the highest rainfall) is March (1.93").
The driest month (with the least rainfall) is June (0.43").
Average rainfall days in September
Redmond, UT
- Average rainfall days in September: 7.8 days
The months with the highest number of rainy days are April and May (12.9 days).
The month with the least rainy days is June (5.4 days).
Average snowfall in September
Redmond, UT
- Average snowfall in September: 0.2"
The month with the highest snowfall is January (8.5").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Redmond, UT
- Average snowfall days in September: 0.2 days
The month with the highest number of snowfall days is December (12.4 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Redmond, 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 30min).
- Average sunshine in September: 10h and 0min
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 48min).
Average sunshine days in September
Redmond, UT
- Average sunshine days in September: 20.1 days
The month with the most sunshine days is June (22.7 days).
The month with the least sunshine days is April (12.4 days).
Average UV index in September
Redmond, 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, March, November and December (UV index 2).
Average cloud cover in September
Redmond, UT
- Average cloud cover in September: 11
The month with the most cloud cover is January (Cloud cover 38).
The months with the least cloud cover are August and September (Cloud cover 11).
Average visibility in September
Redmond, 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).
Redmond, Utah, USA
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