September weather forecast
Myrtletown, CA

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Weather in September

The first month of the autumn, September, is still a pleasant month in Myrtletown, California, with an average temperature fluctuating between 68.9°F (20.5°C) and 51.6°F (10.9°C).

Temperature

September begins with an average high-temperature of a still pleasant 68.9°F (20.5°C), reflecting close similarity to the preceding month. Myrtletown witnesses a consistent average low-temperature of 51.6°F (10.9°C) throughout September.

Humidity

In Myrtletown, the average relative humidity in September is 76%.

Rainfall

In September, in Myrtletown, the rain falls for 4.5 days. Throughout September, 0.79" (20mm) of precipitation is accumulated. In Myrtletown, during the entire year, the rain falls for 114.7 days and collects up to 29.37" (746mm) of precipitation.

Snowfall

January, March through December are months without snowfall in Myrtletown, California.

Daylight

The average length of the day in September is 12h and 27min.
On the first day of September, sunrise is at 6:44 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 6:59 pm PDT.

Sunshine

In Myrtletown, the average sunshine in September is 10.3h.

UV index

In Myrtletown, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for average individuals.
Note: The maximum UV index, 4 during September, leads to the following recommendations:
Ensure safety - Imperative it is to shield skin and eyes from damage. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average September temperature in Myrtletown?

September temperatures in Myrtletown vary between a high-temperature of 68.9°F (20.5°C) and a low-temperature of 51.6°F (10.9°C).

What is the average humidity in September in Myrtletown?

In September, the average relative humidity is 76%.

How much does it rain in Myrtletown in September?

In Myrtletown, California, during September, the rain falls for 4.5 days and regularly aggregates up to 0.79" (20mm) of precipitation.

When it does not snow in Myrtletown?

January, March through December are months without snowfall in Myrtletown, California.

How many hours of daylight does Myrtletown have in September?

In September, the average day length in Myrtletown is 12h and 27min.

When is the sunrise / sunset in September in Myrtletown?

On the first day of September in Myrtletown, California, sunrise is at 6:44 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 6:59 pm PDT.

How long on average sun shines in September in Myrtletown?

The average sunshine duration in September in Myrtletown, California, is 10.3h.

What is the UV index reading in September in Myrtletown?

In Myrtletown, California, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability 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
Myrtletown, CA

Average temperature in September - Myrtletown, CA
  • Average high temperature in September: 68.9°F

The warmest month (with the highest average high temperature) is August (69.6°F).
The month with the lowest average high temperature is December (52.7°F).

  • Average low temperature in September: 51.6°F

The month with the highest average low temperature is August (52.3°F).
The coldest month (with the lowest average low temperature) is February (41.9°F).

Average pressure in September
Myrtletown, CA

Average pressure in September - Myrtletown, CA
  • Average pressure in September: 29.97"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is August (29.96"Hg).

Average wind speed in September
Myrtletown, CA

Average wind speed in September - Myrtletown, CA
  • Average wind speed in September: 6mph

The windiest month (with the highest average wind speed) is March (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

Average humidity in September
Myrtletown, CA

Average humidity in September - Myrtletown, CA
  • Average humidity in September: 76%

The month with the highest relative humidity is March (82%).
The month with the lowest relative humidity is October (75%).

Average rainfall in September
Myrtletown, CA

Average rainfall in September - Myrtletown, CA
  • Average rainfall in September: 0.79"

The wettest month (with the highest rainfall) is December (5.31").
The driest month (with the least rainfall) is July (0.12").

Average rainfall days in September
Myrtletown, CA

Average rainfall days in September - Myrtletown, CA
  • Average rainfall days in September: 4.5 days

The month with the highest number of rainy days is March (17.5 days).
The month with the least rainy days is August (2.1 days).

Average snowfall in September
Myrtletown, CA

Average snowfall in September - Myrtletown, CA
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.39").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").

Average snowfall days in September
Myrtletown, CA

Average snowfall days in September - Myrtletown, CA
  • Average snowfall days in September: 0 days

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

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

Average daylight in September / Average sunshine in September - Myrtletown, CA
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in September: 10h and 2min

The month with the most sunshine is July (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).

Average sunshine days in September
Myrtletown, CA

Average sunshine days in September - Myrtletown, CA
  • Average sunshine days in September: 24.9 days

The month with the most sunshine days is July (28.3 days).
The month with the least sunshine days is March (12.1 days).

Average UV index in September
Myrtletown, CA

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

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 3).

Average cloud cover in September
Myrtletown, CA

Average cloud cover in September - Myrtletown, CA
  • Average cloud cover in September: 18

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 16).

Average visibility in September
Myrtletown, CA

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

The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).

Myrtletown, California, USA

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