September weather forecast
Palmer Lake, CO

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Weather in September

The first month of the autumn, September, is still a pleasant month in Palmer Lake, Colorado, with an average temperature fluctuating between 47.3°F (8.5°C) and 70.5°F (21.4°C).

Temperature

With the onset of September, the average high-temperature subtly recedes from August's warm 75.9°F (24.4°C) to an agreeable 70.5°F (21.4°C). Despite high daytime temperatures, the average temperature lowers to a frosty 47.3°F (8.5°C) during September nights.

Humidity

The average relative humidity in September is 51%.

Rainfall

In Palmer Lake, in September, it is raining for 11.5 days, with typically 1.38" (35mm) of accumulated precipitation. In Palmer Lake, during the entire year, the rain falls for 117.5 days and collects up to 19.41" (493mm) of precipitation.

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 68.6 snowfall days, and 50.51" (1283mm) of snow is accumulated.

Daylight

In September, the average length of the day in Palmer Lake, Colorado, is 12h and 26min.
On the first day of September, sunrise is at 6:29 am and sunset at 7:29 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 6:43 pm MDT.

Sunshine

In September, the average sunshine is 10.8h.

UV index

In Palmer Lake, Colorado, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: A maximum daily UV index of 4 during September morphs into the following directions:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. The Sun's radiation is especially intense around midday; try to stay in shade during this period. During bright days, sunglasses that offer UVA and UVB defense are recommended. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Updated: Jun 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are September temperatures?

The average high-temperature and low-temperature in Palmer Lake during September are 70.5°F (21.4°C) and 47.3°F (8.5°C) respectively.

What is the average humidity in September?

The average relative humidity in September is 51%.

How much does it rain in September?

In Palmer Lake, in September, it is raining for 11.5 days, with typically 1.38" (35mm) of accumulated precipitation.

When does it start to snow?

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 Palmer Lake have in September?

The average day length in September is 12h and 26min.

What time are sunrise and sunset in September in Palmer Lake?

On the first day of September, sunrise is at 6:29 am and sunset at 7:29 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 6:43 pm MDT.

How long on average sun shines in September?

The average sunshine duration in September is 10.8h.

What is the UV index reading in September?

In Palmer Lake, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium health risk from exposure to the Sun's 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
Palmer Lake, CO

Average temperature in September - Palmer Lake, CO
  • Average high temperature in September: 70.5°F

The warmest month (with the highest average high temperature) is July (77.7°F).
The month with the lowest average high temperature is December (36°F).

  • Average low temperature in September: 47.3°F

The month with the highest average low temperature is July (54°F).
The coldest month (with the lowest average low temperature) is December (17.1°F).

Average pressure in September
Palmer Lake, CO

Average pressure in September - Palmer Lake, CO
  • Average pressure in September: 30.01"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is April (29.91"Hg).

Average wind speed in September
Palmer Lake, CO

Average wind speed in September - Palmer Lake, CO
  • Average wind speed in September: 6.5mph

The windiest month (with the highest average wind speed) is April (8.2mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).

Average humidity in September
Palmer Lake, CO

Average humidity in September - Palmer Lake, CO
  • Average humidity in September: 51%

The month with the highest relative humidity is February (69%).
The month with the lowest relative humidity is June (48%).

Average rainfall in September
Palmer Lake, CO

Average rainfall in September - Palmer Lake, CO
  • Average rainfall in September: 1.38"

The wettest month (with the highest rainfall) is May (3.31").
The driest months (with the least rainfall) are January, November and December (0.63").

Average rainfall days in September
Palmer Lake, CO

Average rainfall days in September - Palmer Lake, CO
  • Average rainfall days in September: 11.5 days

The month with the highest number of rainy days is July (18.6 days).
The month with the least rainy days is November (3.6 days).

Average snowfall in September
Palmer Lake, CO

Average snowfall in September - Palmer Lake, CO
  • Average snowfall in September: 0.08"

The month with the highest snowfall is April (9.29").
The months with the least snowfall are July and August (0").

Average snowfall days in September
Palmer Lake, CO

Average snowfall days in September - Palmer Lake, CO
  • Average snowfall days in September: 0.2 days

The month with the highest number of snowfall days is February (11.2 days).
The months with the least snowfall days are July and August (0 days).

Average daylight in September /
Average sunshine in September
Palmer Lake, CO

Average daylight in September / Average sunshine in September - Palmer Lake, CO
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in September: 10h and 5min

The months with the most sunshine are June and July (Average sunshine: 11h and 36min).
The month with the least sunshine is February (Average sunshine: 6h and 30min).

Average sunshine days in September
Palmer Lake, CO

Average sunshine days in September - Palmer Lake, CO
  • Average sunshine days in September: 15.5 days

The month with the most sunshine days is November (21.7 days).
The month with the least sunshine days is May (9.5 days).

Average UV index in September
Palmer Lake, CO

Average UV index in September - Palmer Lake, CO
  • Average UV index in September: 4

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, October, November and December (UV index 2).

Average cloud cover in September
Palmer Lake, CO

Average cloud cover in September - Palmer Lake, CO
  • Average cloud cover in September: 19

The months with the most cloud cover are April and May (Cloud cover 30).
The months with the least cloud cover are September, October and November (Cloud cover 19).

Average visibility in September
Palmer Lake, CO

Average visibility in September - Palmer Lake, CO
  • 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).

Palmer Lake, Colorado, USA

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