September weather forecast
Sparks, NV

Stunning waterfront homes near a scenic dock with a few empty boats, in Sparks, Nevada
Stunning waterfront homes near a scenic dock with a few empty boats, in Sparks, Nevada

Weather in September

September, the first month of the autumn, in Sparks, is still a warm month, with temperature in the range of an average low of 49.8°F (9.9°C) and an average high of 74.8°F (23.8°C).

Temperature

In Sparks, the average high-temperature in September slightly decreases, from 82.9°F (28.3°C) in August, to a still warm 74.8°F (23.8°C). In September, in Sparks, the average low-temperature is 49.8°F (9.9°C).

Humidity

In Sparks, the average relative humidity is 33%.

Rainfall

In September, in Sparks, the rain falls for 2.5 days. Throughout September, 0.16" (4mm) of precipitation is accumulated. In Sparks, during the entire year, the rain falls for 68 days and collects up to 8.07" (205mm) of precipitation.

Snowfall

Months with snowfall in Sparks are January through May, September through December. September is the first month it typically snows. Throughout September, in the average 0.2 snowfall days, it receives 0.12" (3mm) of snow. Throughout the year, in Sparks, there are 33.2 snowfall days, and 23.62" (600mm) of snow is accumulated.

Daylight

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

Sunshine

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

UV index

In September, the average daily maximum UV index in Sparks is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 4 in September transform into the following instructions:
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 average humidity in September in Sparks?

In Sparks, Nevada, the average relative humidity in September is 33%.

How many days does it rain in September in Sparks?

In Sparks, Nevada, in September, it is raining for 2.5 days, with typically 0.16" (4mm) of accumulated precipitation.

When does it start to snow in Sparks?

September is the first month it typically snows. Throughout September, in the average 0.2 snowfall days, it receives 0.12" (3mm) of snow.

How many hours of daylight does Sparks have in September?

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

How long on average sun shines in September in Sparks?

The average sunshine in September is 11.1h.

How high is the UV index in September in Sparks?

In Sparks, Nevada, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health threat from unprotected exposure to the UV radiation.

Average temperature in September
Sparks, NV

Average temperature in September - Sparks, NV
  • Average high temperature in September: 23.8°C

The warmest month (with the highest average high temperature) is July (29.7°C).
The month with the lowest average high temperature is December (3.2°C).

  • Average low temperature in September: 9.9°C

The month with the highest average low temperature is July (14°C).
The coldest month (with the lowest average low temperature) is December (-4.8°C).

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Average pressure in September
Sparks, NV

Average pressure in September - Sparks, NV
  • Average pressure in September: 1014mbar

The month with the highest atmospheric pressure is January (1022.5mbar).
The month with the lowest atmospheric pressure is June (1012.6mbar).

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Average wind speed in September
Sparks, NV

Average wind speed in September - Sparks, NV
  • Average wind speed in September: 9.1km/h

The windiest month (with the highest average wind speed) is April (11.8km/h).
The calmest month (with the lowest average wind speed) is January (7.9km/h).

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Average humidity in September
Sparks, NV

Average humidity in September - Sparks, NV
  • Average humidity in September: 33%

The month with the highest relative humidity is January (73%).
The months with the lowest relative humidity are July and August (28%).

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Average rainfall in September
Sparks, NV

Average rainfall in September - Sparks, NV
  • Average rainfall in September: 4mm

The wettest month (with the highest rainfall) is February (35mm).
The driest months (with the least rainfall) are July and August (2mm).

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Average rainfall days in September
Sparks, NV

Average rainfall days in September - Sparks, NV
  • Average rainfall days in September: 2.5 days

The month with the highest number of rainy days is March (11.2 days).
The month with the least rainy days is August (1.8 days).

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Average snowfall in September
Sparks, NV

Average snowfall in September - Sparks, NV
  • Average snowfall in September: 3mm

The month with the highest snowfall is February (154mm).
The months with the least snowfall are June, July and August (0mm).

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Average snowfall days in September
Sparks, NV

Average snowfall days in September - Sparks, NV
  • Average snowfall days in September: 0.2 days

The month with the highest number of snowfall days is December (7.8 days).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in September / Average sunshine in September - Sparks, 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: 9.4h).

  • Average sunshine in September: 11.1h

The month with the most sunshine is July (Average sunshine: 12.2h).
The month with the least sunshine is December (Average sunshine: 6.1h).

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Average sunshine days in September
Sparks, NV

Average sunshine days in September - Sparks, NV
  • Average sunshine days in September: 26.9 days

The month with the most sunshine days is August (28.2 days).
The month with the least sunshine days is March (15.9 days).

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Average UV index in September
Sparks, NV

Average UV index in September - Sparks, NV
  • 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).

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Average cloud cover in September
Sparks, NV

Average cloud cover in September - Sparks, NV
  • Average cloud cover in September: 9

The month with the most cloud cover is December (Cloud cover 33).
The months with the least cloud cover are July and August (Cloud cover 7).

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Average visibility in September
Sparks, NV

Average visibility in September - Sparks, NV
  • Average visibility in September: 10km

The months with the highest visibility are April, May, June, July, August, September, October and November (10km).
The months with the lowest visibility are January, February, March and December (9km).

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