September weather forecast
Newell, CA

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Weather in September

September, the first month of the autumn in Newell, is also a moderately hot month, with an average temperature fluctuating between 74.1°F (23.4°C) and 44.1°F (6.7°C).

Temperature

The average high-temperature slightly decreases in September, shifting from 82.8°F (28.2°C) in August to a still warm 74.1°F (23.4°C). Newell registers a significant drop in temperature in September, with average nighttime lows of 44.1°F (6.7°C).

Humidity

In Newell, the average relative humidity in September is 51%.

Rainfall

In Newell, California, in September, it is raining for 4 days, with typically 0.39" (10mm) of accumulated precipitation. Throughout the year, there are 97.4 rainfall days, and 12.01" (305mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through June, September through December. September is the first month it typically snows. Throughout September, in the average 0.2 snowfall days, it receives 0.08" (2mm) of snow. Throughout the year, there are 64.6 snowfall days, and 38.31" (973mm) of snow is accumulated.

Daylight

The average length of the day in September is 12h and 28min.
On the first day of September, sunrise is at 6:32 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 6:48 pm PDT.

Sunshine

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

UV index

In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: In September, a regular UV index of 4 translates into these guidelines:
Make use of precautions - Suggestions to resist sunburn are communicated. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.

Frequently asked questions

What are the temperatures in September?

The average high-temperature and low-temperature during September are 74.1°F (23.4°C) and 44.1°F (6.7°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in August is appraised at 82.4°F (28°C).

What is the average humidity in September in Newell?

In September, the average relative humidity is 51%.

How much does it rain in September?

In September, the rain falls for 4 days. Throughout September, 0.39" (10mm) of precipitation is accumulated.

When does it start snowing?

September is the first month it typically snows. Throughout September, in the average 0.2 snowfall days, it receives 0.08" (2mm) of snow.

How many hours of daylight does Newell have in September?

In Newell, the average day length in September is 12h and 28min.

What time are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:32 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 6:48 pm PDT.

How long on average sun shines in September?

In September, the average sunshine duration is 11.1h.

What is the UV index reading in September?

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

Average temperature in September
Newell, CA

Average temperature in September - Newell, CA
  • Average high temperature in September: 74.1°F

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is December (37.2°F).

  • Average low temperature in September: 44.1°F

The month with the highest average low temperature is August (49.3°F).
The coldest month (with the lowest average low temperature) is December (25°F).

Average pressure in September
Newell, CA

Average pressure in September - Newell, CA
  • Average pressure in September: 29.98"Hg

The month with the highest atmospheric pressure is January (30.18"Hg).
The months with the lowest atmospheric pressure are June, July and August (29.96"Hg).

Average wind speed in September
Newell, CA

Average wind speed in September - Newell, CA
  • Average wind speed in September: 5.1mph

The windiest month (with the highest average wind speed) is March (6.5mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in September
Newell, CA

Average humidity in September - Newell, CA
  • Average humidity in September: 51%

The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is August (47%).

Average rainfall in September
Newell, CA

Average rainfall in September - Newell, CA
  • Average rainfall in September: 0.39"

The wettest month (with the highest rainfall) is December (1.97").
The driest month (with the least rainfall) is July (0.16").

Average rainfall days in September
Newell, CA

Average rainfall days in September - Newell, CA
  • Average rainfall days in September: 4 days

The month with the highest number of rainy days is March (12.5 days).
The month with the least rainy days is August (3.1 days).

Average snowfall in September
Newell, CA

Average snowfall in September - Newell, CA
  • Average snowfall in September: 0.08"

The month with the highest snowfall is December (9.57").
The months with the least snowfall are July and August (0").

Average snowfall days in September
Newell, CA

Average snowfall days in September - Newell, CA
  • Average snowfall days in September: 0.2 days

The month with the highest number of snowfall days is December (13.4 days).
The months with the least snowfall days are July and August (0 days).

Average daylight in September /
Average sunshine in September
Newell, CA

Average daylight in September / Average sunshine in September - Newell, CA
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in September: 11h and 1min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).

Average sunshine days in September
Newell, CA

Average sunshine days in September - Newell, CA
  • Average sunshine days in September: 24.8 days

The month with the most sunshine days is August (25.7 days).
The month with the least sunshine days is March (11.5 days).

Average UV index in September
Newell, CA

Average UV index in September - Newell, CA
  • Average UV index in September: 4

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in September
Newell, CA

Average cloud cover in September - Newell, CA
  • Average cloud cover in September: 14

The months with the most cloud cover are March and December (Cloud cover 44).
The months with the least cloud cover are July and August (Cloud cover 8).

Average visibility in September
Newell, CA

Average visibility in September - Newell, CA
  • Average visibility in September: 6mi

The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).

Newell, California, USA

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