September weather forecast
Markleeville, CA

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Weather in September

September, the first month of the autumn in Markleeville, is still a comfortable month, with an average temperature fluctuating between 67.3°F (19.6°C) and 42.3°F (5.7°C).

Temperature

As September commences, the average high-temperature subtly reduces, transitioning from an agreeable 73.2°F (22.9°C) in August to an enjoyable 67.3°F (19.6°C). During September nights, Markleeville documents a marked contrast from daily highs, with an average temperature of 42.3°F (5.7°C).

Humidity

In Markleeville, the average relative humidity in September is 45%.

Rainfall

In Markleeville, in September, during 4.3 rainfall days, 0.39" (10mm) of precipitation is typically accumulated. Throughout the year, there are 45.4 rainfall days, and 26.06" (662mm) of precipitation is accumulated.

Snowfall

January through June, September through December are months with snowfall. September is the first month it typically snows. Throughout September, in the average 1 snowfall days, it receives 0.63" (16mm) of snow. In Markleeville, during the entire year, snow falls for 83.9 days and aggregates up to 153.46" (3898mm) of snow.

Daylight

The average length of the day in September in Markleeville is 12h and 25min.
On the first day of the month, sunrise is at 6:29 am and sunset at 7:28 pm. On the last day of September, sunrise is at 6:54 am and sunset at 6:42 pm PDT.

Sunshine

In September, the average sunshine is 11.1h.

UV index

The average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: In September, a daily UV index of 3 turns into the following recommendations:
Act with care - The suggestion to avoid sunburn is emphasized. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Updated: Aug 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average September temperature in Markleeville?

September temperatures vary between a high-temperature of 67.3°F (19.6°C) and a low-temperature of 42.3°F (5.7°C).

What is the average humidity in September?

The average relative humidity in September is 45%.

How much does it rain in September?

In September, the rain falls for 4.3 days. Throughout September, 0.39" (10mm) of precipitation is accumulated.

When does it start to snow?

September is the first month it typically snows. Throughout September, in the average 1 snowfall days, it receives 0.63" (16mm) of snow.

What is the average length of the day in September?

The average day length in September is 12h and 25min.

When are sunrise and sunset in September?

On the first day of September, sunrise is at 6:29 am and sunset at 7:28 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 6:42 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 Markleeville, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to UV radiation.
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
Markleeville, CA

Average temperature in September - Markleeville, CA
  • Average high temperature in September: 67.3°F

The warmest month (with the highest average high temperature) is July (74.1°F).
The month with the lowest average high temperature is December (35.4°F).

  • Average low temperature in September: 42.3°F

The month with the highest average low temperature is July (47.1°F).
The coldest month (with the lowest average low temperature) is December (20.1°F).

Average pressure in September
Markleeville, CA

Average pressure in September - Markleeville, CA
  • Average pressure in September: 29.94"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in September
Markleeville, CA

Average wind speed in September - Markleeville, CA
  • Average wind speed in September: 5.7mph

The windiest month (with the highest average wind speed) is March (7.5mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

Average humidity in September
Markleeville, CA

Average humidity in September - Markleeville, CA
  • Average humidity in September: 45%

The month with the highest relative humidity is March (82%).
The month with the lowest relative humidity is August (41%).

Average rainfall in September
Markleeville, CA

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

The wettest month (with the highest rainfall) is March (4.69").
The driest month (with the least rainfall) is August (0.31").

Average rainfall days in September
Markleeville, CA

Average rainfall days in September - Markleeville, CA
  • Average rainfall days in September: 4.3 days

The month with the highest number of rainy days is May (6.9 days).
The month with the least rainy days is November (1.3 days).

Average snowfall in September
Markleeville, CA

Average snowfall in September - Markleeville, CA
  • Average snowfall in September: 0.63"

The month with the highest snowfall is March (33.46").
The months with the least snowfall are July and August (0").

Average snowfall days in September
Markleeville, CA

Average snowfall days in September - Markleeville, CA
  • Average snowfall days in September: 1 days

The month with the highest number of snowfall days is March (15.2 days).
The months with the least snowfall days are July and August (0 days).

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

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

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in September: 11h and 1min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).

Average sunshine days in September
Markleeville, CA

Average sunshine days in September - Markleeville, CA
  • Average sunshine days in September: 25.2 days

The month with the most sunshine days is August (25.6 days).
The month with the least sunshine days is March (14.7 days).

Average UV index in September
Markleeville, CA

Average UV index in September - Markleeville, CA
  • Average UV index in September: 3

The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is February (UV index 1).

Average cloud cover in September
Markleeville, CA

Average cloud cover in September - Markleeville, CA
  • Average cloud cover in September: 10

The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 8).

Average visibility in September
Markleeville, CA

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

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

Markleeville, California, USA

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