September weather forecast
Glenbrook, NV

Weather in September

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

Temperature

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

Humidity

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

Rainfall

In Glenbrook, during September, the rain falls for 3.3 days and regularly aggregates up to 0.31" (8mm) of precipitation. In Glenbrook, during the entire year, the rain falls for 47.3 days and collects up to 9.61" (244mm) of precipitation.

Snowfall

January through June, September through December are months with snowfall in Glenbrook. 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, Nevada, during the entire year, snow falls for 51.5 days and aggregates up to 38.54" (979mm) 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 6:28 am and sunset at 7:30 pm. On the last day of September, sunrise is at 6:55 am and sunset at 6:44 pm PDT.

Sunshine

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

UV index

In September, the average daily maximum UV index in Glenbrook is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In September, the average maximum UV index of 3 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. 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 average humidity in September in Glenbrook?

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

How much does it rain in Glenbrook in September?

In Glenbrook, Nevada, in September, during 3.3 rainfall days, 0.31" (8mm) of precipitation is typically accumulated.

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 September, the average day length in Glenbrook, Nevada, is 12h and 26min.

What time are sunrise and sunset in September in Glenbrook?

On the first day of September in Glenbrook, Nevada, sunrise is at 6:28 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 6:44 pm PDT.

How long on average sun shines in September in Glenbrook?

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

What is the UV index reading in September in Glenbrook?

The average daily maximum UV index in September in Glenbrook, Nevada, is 3. A UV Index estimate of 3 to 5 represents a moderate health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

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"Hg

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

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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%).
The 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").
The 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).
The 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: 12h and 26min

The month with the longest days is June (Average daylight: 14h and 52min).
The month with the shortest days is December (Average daylight: 9h and 29min).

  • Average sunshine in September: 11h and 6min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).

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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).
The 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

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).

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