September weather forecast and climate
Coaldale, CO

Weather in September

The first month of the autumn, September, is also an agreeable month in Coaldale, Colorado, with average temperature fluctuating between 68.5°F (20.3°C) and 41.2°F (5.1°C).

Temperature

In Coaldale, the average high-temperature in September slightly decreases, from a moderately hot 74.8°F (23.8°C) in August, to a pleasant 68.5°F (20.3°C). The average low-temperature, in Coaldale, is 41.2°F (5.1°C).

Humidity

In Coaldale, the average relative humidity is 51%.

Rainfall

In September, the rain falls for 6 days. Throughout September, 0.39" (10mm) of precipitation is accumulated. In Coaldale, during the entire year, the rain falls for 58.1 days and collects up to 5.83" (148mm) of precipitation.

Snowfall

In Coaldale snow does not fall in July through September.

Daylight

In Coaldale, the average length of the day is 12.4h.

Sunshine

In Coaldale, the average sunshine is 10.9h.

UV index

In Coaldale, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from the exposure to the Sun's UV rays for ordinary individuals.
Note: In September, the average maximum UV index of 3 translate into the following recommendations:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in September in Coaldale?

The average high-temperature, in September, in Coaldale, is 68.5°F (20.3°C), while the average low-temperature is 41.2°F (5.1°C).

What is the average humidity in September in Coaldale?

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

How many days does it rain in September in Coaldale?

In Coaldale, Colorado, in September, during 6 rainfall days, 0.39" (10mm) of precipitation is typically accumulated.

Does it snow in Coaldale in September?

In Coaldale, Colorado, in September, it doesn't snow. In October, it regularly snows.

When it does not snow in Coaldale?

July through September are months without snowfall in Coaldale, Colorado.

What is the average length of the day in September in Coaldale?

In Coaldale, Colorado, the average length of the day in September is 12.4h.

How long on average sun shines in September in Coaldale?

In Coaldale, Colorado, the average sunshine in September is 10.9h.

What is the UV index reading in September in Coaldale?

The average daily maximum UV index in September in Coaldale, Colorado, is 3. A UV Index value of 3 to 5 symbolizes a medium health risk from unprotected exposure to the UV radiation.

Average temperature in September
Coaldale, CO

Average temperature in September - Coaldale, CO
  • Average high temperature in September: 68.5°F

The warmest month (with the highest average high temperature) is July (76.8°F).
The month with the lowest average high temperature is January (31.5°F).

  • Average low temperature in September: 41.2°F

The month with the highest average low temperature is July (47.5°F).
The coldest month (with the lowest average low temperature) is January (11.3°F).

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Average pressure in September
Coaldale, CO

Average pressure in September - Coaldale, CO
  • Average pressure in September: 30.06"

The month with the highest atmospheric pressure is January (30.18").
The month with the lowest atmospheric pressure is April (29.93").

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Average wind speed in September
Coaldale, CO

Average wind speed in September - Coaldale, CO
  • Average wind speed in September: 5.6mph

The windiest month (with the highest average wind speed) is February (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).

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Average humidity in September
Coaldale, CO

Average humidity in September - Coaldale, CO
  • Average humidity in September: 51%

The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is June (41%).

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Average rainfall in September
Coaldale, CO

Average rainfall in September - Coaldale, CO
  • Average rainfall in September: 0.39"

The wettest month (with the highest rainfall) is July (1.34").
The driest month (with the least rainfall) is January (0.2").

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Average rainfall days in September
Coaldale, CO

Average rainfall days in September - Coaldale, CO
  • Average rainfall days in September: 6 days

The month with the highest number of rainy days is July (12.9 days).
The month with the least rainy days is November (1.2 days).

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Average snowfall in September
Coaldale, CO

Average snowfall in September - Coaldale, CO
  • Average snowfall in September: 0"

The month with the highest snowfall is February (3.43").
Months with the least snowfall are July, August and September (0").

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Average snowfall days in September
Coaldale, CO

Average snowfall days in September - Coaldale, CO
  • Average snowfall days in September: 0.2 days

The month with the highest number of snowfall days is February (7.6 days).
Months with the least snowfall days are July and August (0 days).

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Average daylight in September /
Average sunshine in September
Coaldale, CO

Average daylight in September / Average sunshine in September - Coaldale, CO
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.8h).
The month with the shortest days is December (Average daylight: 9.5h).

  • Average sunshine in September: 10.9h

The month with the most sunshine is June (Average sunshine: 11.6h).
The month with the least sunshine is February (Average sunshine: 6.6h).

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Average sunshine days in September
Coaldale, CO

Average sunshine days in September - Coaldale, CO
  • Average sunshine days in September: 22.1 days

The month with the most sunshine days is November (25.5 days).
The month with the least sunshine days is July (15.6 days).

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Average UV index in September
Coaldale, CO

Average UV index in September - Coaldale, CO
  • Average UV index in September: 3

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

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Average cloud cover in September
Coaldale, CO

Average cloud cover in September - Coaldale, CO
  • Average cloud cover in September: 18

The month with the most cloud cover is February (Cloud cover 32).
The month with the least cloud cover is June (Cloud cover 15).

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Average visibility in September
Coaldale, CO

Average visibility in September - Coaldale, CO
  • Average visibility in September: 6mi

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

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