September weather forecast
Moapa Valley, NV

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Weather in September

September, the first month of the autumn in Moapa Valley, is still a tropical month, with an average temperature varying between 88.7°F (31.5°C) and 69.4°F (20.8°C).

Temperature

The onset of September is marked by a minor decrease in temperature, transitioning from a sweltering 96.1°F (35.6°C) in August to a tropical 88.7°F (31.5°C). The low-temperature average for Moapa Valley during September stands at an agreeable 69.4°F (20.8°C).

Humidity

The average relative humidity in September is 26%.

Rainfall

In September, the rain falls for 5 days. Throughout September, 0.55" (14mm) of precipitation is accumulated. Throughout the year, there are 60.6 rainfall days, and 6.38" (162mm) of precipitation is accumulated.

Snowfall

In Moapa Valley, snow does not fall in January, March through November.

Daylight

In Moapa Valley, the average length of the day in September is 12h and 24min.
On the first day of September, sunrise is at 6:09 am and sunset at 7:05 pm. On the last day of the month, sunrise is at 6:32 am and sunset at 6:22 pm PDT.

Sunshine

The average sunshine in September in Moapa Valley is 10.1h.

UV index

In September, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: In September, the average maximum UV index of 6 translates into the following recommendations:
Resist extreme sun exposure. Guarding against solar damage is essential. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Updated: Jun 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is September?

In September, the average high-temperature and low-temperature are 88.7°F (31.5°C) and 69.4°F (20.8°C) respectively.

What is the average humidity in September?

In September, the average relative humidity is 26%.

How many days does it rain in September in Moapa Valley?

In Moapa Valley, during September, the rain falls for 5 days and regularly aggregates up to 0.55" (14mm) of precipitation.

When it does not snow?

January, March through November are months without snowfall.

What is the average length of the day in September?

The average day length in September is 12h and 24min.

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 6:09 am and sunset at 7:05 pm. On the last day of the month, sunrise is at 6:32 am and sunset at 6:22 pm PDT.

How long on average sun shines in September?

In September, the average sunshine duration is 10.1h.

What is the UV index reading in September?

In Moapa Valley, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to Sun's UV rays.
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
Moapa Valley, NV

Average temperature in September - Moapa Valley, NV
  • Average high temperature in September: 88.7°F

The warmest month (with the highest average high temperature) is July (98.2°F).
The month with the lowest average high temperature is December (50.9°F).

  • Average low temperature in September: 69.4°F

The month with the highest average low temperature is July (76.5°F).
The coldest month (with the lowest average low temperature) is December (35.2°F).

Average pressure in September
Moapa Valley, NV

Average pressure in September - Moapa Valley, NV
  • Average pressure in September: 29.9"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.81"Hg).

Average wind speed in September
Moapa Valley, NV

Average wind speed in September - Moapa Valley, NV
  • Average wind speed in September: 6.5mph

The windiest month (with the highest average wind speed) is June (8.5mph).
The calmest month (with the lowest average wind speed) is December (5.8mph).

Average humidity in September
Moapa Valley, NV

Average humidity in September - Moapa Valley, NV
  • Average humidity in September: 26%

The month with the highest relative humidity is January (52%).
The month with the lowest relative humidity is June (15%).

Average rainfall in September
Moapa Valley, NV

Average rainfall in September - Moapa Valley, NV
  • Average rainfall in September: 0.55"

The wettest months (with the highest rainfall) are February and December (0.83").
The driest month (with the least rainfall) is June (0.04").

Average rainfall days in September
Moapa Valley, NV

Average rainfall days in September - Moapa Valley, NV
  • Average rainfall days in September: 5 days

The month with the highest number of rainy days is July (7.8 days).
The month with the least rainy days is June (1.1 days).

Average snowfall in September
Moapa Valley, NV

Average snowfall in September - Moapa Valley, NV
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.12").
The months with the least snowfall are January, March, April, May, June, July, August, September, October and November (0").

Average snowfall days in September
Moapa Valley, NV

Average snowfall days in September - Moapa Valley, NV
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is December (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).

Average daylight in September /
Average sunshine in September
Moapa Valley, NV

Average daylight in September / Average sunshine in September - Moapa Valley, NV
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in September: 10h and 1min

The month with the most sunshine is August (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).

Average sunshine days in September
Moapa Valley, NV

Average sunshine days in September - Moapa Valley, NV
  • Average sunshine days in September: 21.5 days

The month with the most sunshine days is June (27.6 days).
The month with the least sunshine days is July (17.4 days).

Average UV index in September
Moapa Valley, NV

Average UV index in September - Moapa Valley, NV
  • Average UV index in September: 6

The months with the highest UV index are June and July (UV index 8).
The month with the lowest UV index is December (UV index 2).

Average cloud cover in September
Moapa Valley, NV

Average cloud cover in September - Moapa Valley, NV
  • Average cloud cover in September: 7

The month with the most cloud cover is December (Cloud cover 22).
The month with the least cloud cover is June (Cloud cover 6).

Average visibility in September
Moapa Valley, NV

Average visibility in September - Moapa Valley, 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).

Moapa Valley, Nevada, USA

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