September weather forecast
Sparks, NV

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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

Sparks, Nevada experience a slow transition from scorching summer to mellow autumn in September. Although the temperatures still stand at 74.8°F (23.8°C), a noticeable drop is observed. As September proceeds, the city experiences a healthy interlude of sinking temperatures and dwindling daylight. This month is marked by mild and agreeable weather, making it a favorite among residents.

Temperature

The onset of September in Sparks brings a small shift in high-temperatures, falling from a warm 82.9°F (28.3°C) in August to a still moderately hot 74.8°F (23.8°C). Nightfall in September introduces a considerable dip in temperature in Sparks, settling at an average of 49.8°F (9.9°C).

Humidity

The average relative humidity in September is 33%.

Rainfall

In Sparks, during September, the rain falls for 2.5 days and regularly aggregates up to 0.16" (4mm) of precipitation. Throughout the year, in Sparks, Nevada, there are 68 rainfall days, and 8.07" (205mm) of precipitation is accumulated.

Snowfall

January through May, September through December are months with snowfall in Sparks. September is the first month it typically snows in Sparks. Throughout September, in the average 0.2 snowfall days, it receives 0.12" (3mm) of snow. In Sparks, during the entire year, snow falls for 33.2 days and aggregates up to 23.62" (600mm) of snow.

Daylight

In Sparks, the average length of the day in September is 12h and 26min.
On the first day of the month, sunrise is at 6:28 am and sunset at 7:29 pm. On the last day of September, in Sparks, Nevada, sunrise is at 6:54 am and sunset at 6:42 pm PDT.

Sunshine

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

UV index

In Sparks, Nevada, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index, 4 in September, converts into the following recommendations:
Undertake precautions - Guarding against sun damage is counselled. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are September temperatures in Sparks?

In September, the average high-temperature and low-temperature in Sparks, Nevada, are 74.8°F (23.8°C) and 49.8°F (9.9°C) respectively.

What is the average humidity in September in Sparks?

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

How many days does it rain in September in Sparks?

In Sparks, Nevada, in September, during 2.5 rainfall days, 0.16" (4mm) of precipitation is typically accumulated.

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 day length in September is 12h and 26min.

When are sunrise and sunset in September in Sparks?

In September, on the first day of the month, sunrise is at 6:28 am and sunset at 7:29 pm. On the last day of the month, in Sparks, sunrise is at 6:54 am and sunset at 6:42 pm PDT.

How many hours of sunshine does Sparks have in September?

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

How high is the UV index in September in Sparks?

In September, the average daily maximum UV index in Sparks, Nevada, is 4. A UV Index estimate of 3 to 5 represents a medium health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Sparks, NV

Average temperature in September - Sparks, NV
  • Average high temperature in September: 74.8°F

The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is December (37.8°F).

  • Average low temperature in September: 49.8°F

The month with the highest average low temperature is July (57.2°F).
The coldest month (with the lowest average low temperature) is December (23.4°F).

Average pressure in September
Sparks, NV

Average pressure in September - Sparks, NV
  • Average pressure in September: 29.94"Hg

The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in September
Sparks, NV

Average wind speed in September - Sparks, NV
  • Average wind speed in September: 5.7mph

The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is January (4.9mph).

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%).

Average rainfall in September
Sparks, NV

Average rainfall in September - Sparks, NV
  • Average rainfall in September: 0.16"

The wettest month (with the highest rainfall) is February (1.38").
The driest months (with the least rainfall) are July and August (0.08").

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).

Average snowfall in September
Sparks, NV

Average snowfall in September - Sparks, NV
  • Average snowfall in September: 0.12"

The month with the highest snowfall is February (6.06").
The months with the least snowfall are June, July and August (0").

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).

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

Average daylight in September / Average sunshine in September - Sparks, NV
  • 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 24min).

  • Average sunshine in September: 11h and 1min

The month with the most sunshine is July (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 6min).

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).

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).

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).

Average visibility in September
Sparks, NV

Average visibility in September - Sparks, 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).

Sparks, Nevada, USA

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