Carson City
Nevada, USA
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Carson City, NV

A walking path leading to the State Capital building entrance in Carson City, Nevada
A walking path leading to the State Capital building entrance in Carson City, Nevada
September, the first month of the autumn, in Carson City, is also a moderately hot month, with average temperature ranging between min 48°F (8.9°C) and max 73.4°F (23°C).

Temperature

In September, the average high-temperature marginally drops, from 81.1°F (27.3°C) in August, to a still moderately hot 73.4°F (23°C). In September, in Carson City, the average low-temperature is 48°F (8.9°C).

Humidity

The average relative humidity in September is 36%.

Rainfall

In Carson City, Nevada, in September, it is raining for 3.6 days, with typically 0.24" (6mm) of accumulated precipitation. Throughout the year, there are 84.4 rainfall days, and 11.61" (295mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, September through December. September is the first month it typically snows in Carson City. Throughout September, in the average 0.2 snowfall days, it receives 0.04" (1mm) of snow. In Carson City, during the entire year, snow falls for 41.9 days, and aggregates up to 34.17" (868mm) of snow.

Daylight

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

Sunshine

In Carson City, the average sunshine is 11.2h.

UV index

The average daily maximum UV index in Carson City is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from the exposure to the Sun's UV radiation for the average person.
Note: In September, the average maximum UV index of 4 translate into the following recommendations:
Take precautions - Protection against the skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the temperature in September in Carson City?

In Carson City, in September, the average high-temperature is 73.4°F (23°C), and the average low-temperature is 48°F (8.9°C).

What is the average humidity in September in Carson City?

In Carson City, Nevada, the average relative humidity in September is 36%.

How many days does it rain in September in Carson City?

In Carson City, Nevada, in September, it is raining for 3.6 days, with typically 0.24" (6mm) of accumulated precipitation.

When does it start snowing in Carson City?

September is the first month it typically snows in Carson City, Nevada. Throughout September, in the average 0.2 snowfall days, it receives 0.04" (1mm) of snow.

How many hours of daylight does Carson City have in September?

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

How many hours of sunshine does Carson City have in September?

The average sunshine in September in Carson City, Nevada, is 11.2h.

What is the UV index intensity in September in Carson City?

In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate health threat from unsafe exposure to the Sun's UV rays.
Average temperature in September - Carson City, NV
  • Average high temperature in September: 23°C

The warmest month (with the highest average high temperature) is July (28.2°C).
The month with the lowest average high temperature is December (3.1°C).

  • Average low temperature in September: 8.9°C

The month with the highest average low temperature is July (12.6°C).
The coldest month (with the lowest average low temperature) is December (-4.8°C).

Average humidity in September - Carson City, NV
  • Average humidity in September: 36%

Months with the highest relative humidity are January and December (72%).
The month with the lowest relative humidity is August (31%).

Average rainfall in September - Carson City, NV
  • Average rainfall in September: 6mm

The wettest month (with the highest rainfall) is February (48mm).
The driest month (with the lowest rainfall) is August (5mm).

Average rainfall days in September - Carson City, NV
  • Average rainfall days in September: 3.6 days

The month with the highest number of rainy days is March (11.7 days).
The month with the lowest number of rainy days is August (3 days).

Average snowfall in September - Carson City, NV
  • Average snowfall in September: 1mm

The month with the highest snowfall is March (205mm).
Months with the lowest snowfall are June, July and August (0mm).

Average snowfall days in September - Carson City, NV
  • Average snowfall days in September: 0.2 days

The month with the highest number of snowfall days is December (9.2 days).
Months with the lowest number of snowfall days are July and August (0 days).

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

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

  • Average sunshine in September: 11.2h

Months with most sunshine are June and July (Average sunshine: 12.1h).
The month with least sunshine is December (Average sunshine: 6.2h).

Average UV index in September - Carson City, NV
  • Average UV index in September: 4

Months with the highest UV index are June and July (UV index 6).
Months with the lowest UV index are January, February, March, November and December (UV index 2).