September weather forecast and climate
Glenbrook, NV

Weather in September

The first month of the autumn, September, is also an enjoyable month in Glenbrook, Nevada, with average temperature fluctuating between 43°F (6.1°C) and 67.5°F (19.7°C).

Temperature

In Glenbrook, the average high-temperature marginally drops, from a pleasant 72.9°F (22.7°C) in August, to a comfortable 67.5°F (19.7°C). In September, the average low-temperature is 43°F (6.1°C).

Humidity

In September, the average relative humidity is 46%.

Rainfall

In Glenbrook, in September, it is raining for 3.3 days, with typically 0.31" (8mm) of accumulated precipitation. Throughout the year, there are 47.3 rainfall days, and 9.61" (244mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Glenbrook are January through June, September through December. September is the first month it typically snows in Glenbrook, Nevada. Throughout September, in the average 0.4 snowfall days, it receives 0.04" (1mm) of snow. In Glenbrook, during the entire year, snow falls for 51.5 days, and aggregates up to 38.54" (979mm) of snow.

Daylight

In Glenbrook, the average length of the day in September is 12.4h.

Sunshine

In Glenbrook, the average sunshine in September is 11.1h.

UV index

The average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from the exposure to the Sun's UV rays for the ordinary person.
Note: In September, the average maximum UV index of 3 translate into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in September in Glenbrook?

In Glenbrook, Nevada, in September, the average high-temperature is 67.5°F (19.7°C), and the average low-temperature is 43°F (6.1°C).

What is the average humidity in September in Glenbrook?

In Glenbrook, the average relative humidity in September is 46%.

How much does it rain in Glenbrook in September?

In Glenbrook, Nevada, during September, the rain falls for 3.3 days and regularly aggregates up to 0.31" (8mm) of precipitation.

When does it start snowing in Glenbrook?

September is the first month it typically snows. Throughout September, in the average 0.4 snowfall days, it receives 0.04" (1mm) of snow.

How many hours of daylight does Glenbrook have in September?

In Glenbrook, Nevada, the average length of the day in September is 12.4h.

How many hours of sunshine does Glenbrook have in September?

In September, the average sunshine in Glenbrook, Nevada, is 11.1h.

What is the UV index reading in September in Glenbrook?

In Glenbrook, Nevada, the average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a moderate health threat from the exposure to the Sun's UV radiation.

Average temperature in September
Glenbrook, NV

Average temperature in September - Glenbrook, NV
  • Average high temperature in September: 67.5°F

The warmest month (with the highest average high temperature) is July (73.9°F).
The month with the lowest average high temperature is December (36.5°F).

  • Average low temperature in September: 43°F

The month with the highest average low temperature is July (47.1°F).
The coldest month (with the lowest average low temperature) is December (22.1°F).

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Average pressure in September
Glenbrook, NV

Average pressure in September - Glenbrook, NV
  • Average pressure in September: 29.94"

The month with the highest atmospheric pressure is January (30.18").
The month with the lowest atmospheric pressure is June (29.91").

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Average wind speed in September
Glenbrook, NV

Average wind speed in September - Glenbrook, NV
  • Average wind speed in September: 5.8mph

The windiest month (with the highest average wind speed) is March (7.7mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

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Average humidity in September
Glenbrook, NV

Average humidity in September - Glenbrook, NV
  • Average humidity in September: 46%

The month with the highest relative humidity is March (80%).
Months with the lowest relative humidity are July and August (43%).

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Average rainfall in September
Glenbrook, NV

Average rainfall in September - Glenbrook, NV
  • Average rainfall in September: 0.31"

The wettest months (with the highest rainfall) are February and March (1.5").
The driest months (with the least rainfall) are June and August (0.28").

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Average rainfall days in September
Glenbrook, NV

Average rainfall days in September - Glenbrook, NV
  • Average rainfall days in September: 3.3 days

The month with the highest number of rainy days is May (7.4 days).
The month with the least rainy days is November (2.4 days).

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Average snowfall in September
Glenbrook, NV

Average snowfall in September - Glenbrook, NV
  • Average snowfall in September: 0.04"

The month with the highest snowfall is March (8.7").
Months with the least snowfall are July and August (0").

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Average snowfall days in September
Glenbrook, NV

Average snowfall days in September - Glenbrook, NV
  • Average snowfall days in September: 0.4 days

The month with the highest number of snowfall days is March (9.8 days).
Months with the least snowfall days are July and August (0 days).

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Average daylight in September /
Average sunshine in September
Glenbrook, NV

Average daylight in September / Average sunshine in September - Glenbrook, NV
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.9h).
The month with the shortest days is December (Average daylight: 9.5h).

  • Average sunshine in September: 11.1h

The month with the most sunshine is July (Average sunshine: 12h).
The month with the least sunshine is December (Average sunshine: 5.7h).

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Average sunshine days in September
Glenbrook, NV

Average sunshine days in September - Glenbrook, NV
  • Average sunshine days in September: 25.8 days

The month with the most sunshine days is October (26.8 days).
The month with the least sunshine days is February (19 days).

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Average UV index in September
Glenbrook, NV

Average UV index in September - Glenbrook, NV
  • Average UV index in September: 3

The month with the highest UV index is July (UV index 5).
Months with the lowest UV index are January, February, March, April, November and December (UV index 2).

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Average cloud cover in September
Glenbrook, NV

Average cloud cover in September - Glenbrook, NV
  • Average cloud cover in September: 10

The month with the most cloud cover is March (Cloud cover 41).
The month with the least cloud cover is July (Cloud cover 8).

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Average visibility in September
Glenbrook, NV

Average visibility in September - Glenbrook, NV
  • Average visibility in September: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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