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
A modest decline in the average high-temperature is seen during September, decreasing from 85.6°F (29.8°C) in August to a still moderately hot 77.9°F (25.5°C). Round Mountain in September anticipates an average nighttime temperature of 59.4°F (15.2°C).Humidity
In September, the average relative humidity is 25%.Rainfall
In Round Mountain, in September, it is raining for 3 days, with typically 0.24" (6mm) of accumulated precipitation. Throughout the year, in Round Mountain, there are 47.7 rainfall days, and 4.96" (126mm) of precipitation is accumulated.Snowfall
In Round Mountain, snow does not fall in May through October.Daylight
In Round Mountain, Nevada, the average length of the day in September is 12h and 25min.On the first day of September, sunrise is at 6:18 am and sunset at 7:17 pm. On the last day of the month, sunrise is at 6:43 am and sunset at 6:31 pm PDT.
Sunshine
The average sunshine in September is 10.7h.UV index
In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: The average daily UV index of 5 in September transforms into the following instructions:
Ensure safety - Sun damage prevention is strongly urged. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
What is the average length of the day in September in Round Mountain?
When is the sunrise / sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Round Mountain, NV
- Average high temperature in September: 77.9°F
The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is December (40.1°F).
- Average low temperature in September: 59.4°F
The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is December (26.1°F).
Average pressure in September
Round Mountain, NV
- Average pressure in September: 29.92"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in September
Round Mountain, NV
- Average wind speed in September: 7.1mph
The windiest month (with the highest average wind speed) is April (10mph).
The calmest month (with the lowest average wind speed) is January (6.5mph).
Average humidity in September
Round Mountain, NV
- Average humidity in September: 25%
The months with the highest relative humidity are January and December (60%).
The month with the lowest relative humidity is August (20%).
Average rainfall in September
Round Mountain, NV
- Average rainfall in September: 0.24"
The wettest months (with the highest rainfall) are March and May (0.71").
The driest month (with the least rainfall) is August (0.08").
Average rainfall days in September
Round Mountain, NV
- Average rainfall days in September: 3 days
The month with the highest number of rainy days is March (7.2 days).
The month with the least rainy days is August (1.8 days).
Average snowfall in September
Round Mountain, NV
- Average snowfall in September: 0"
The month with the highest snowfall is December (3.54").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Round Mountain, NV
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (5.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Round Mountain, NV
- 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 4min
The months with the most sunshine are June, July and August (Average sunshine: 12h and 6min).
The months with the least sunshine are February and December (Average sunshine: 6h and 54min).
Average sunshine days in September
Round Mountain, NV
- Average sunshine days in September: 26.5 days
The month with the most sunshine days is August (27.8 days).
The month with the least sunshine days is March (20.8 days).
Average UV index in September
Round Mountain, NV
- Average UV index in September: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Round Mountain, NV
- Average cloud cover in September: 7
The month with the most cloud cover is December (Cloud cover 24).
The months with the least cloud cover are August and September (Cloud cover 7).
Average visibility in September
Round Mountain, NV
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Round Mountain, Nevada, USA
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