September weather forecast and climate
Atwood, CO

Weather in September

The first month of the autumn, September, is still a warm month in Atwood, Colorado, with average temperature fluctuating between 78.8°F (26°C) and 56.3°F (13.5°C).

Temperature

In Atwood, the average high-temperature slightly decreases, from a tropical 86.2°F (30.1°C) in August, to a moderately hot 78.8°F (26°C). In Atwood, in September, the average low-temperature is 56.3°F (13.5°C).

Humidity

September is the least humid month in Atwood, with an average relative humidity of 47%.

Rainfall

In Atwood, it is raining for 10.1 days, with typically 0.98" (25mm) of accumulated precipitation. Throughout the year, there are 123.2 rainfall days, and 15.39" (391mm) of precipitation is accumulated.

Snowfall

In Atwood snow does not fall in June through September.

Daylight

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

Sunshine

In Atwood, the average sunshine is 10.3h.

UV index

In Atwood, Colorado, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from the exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 5 in September transform into the following instructions:
Take precautions - Protection against the skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in September in Atwood?

The average high-temperature, in September, is 78.8°F (26°C), while the average low-temperature is 56.3°F (13.5°C).

What is the least humid month in Atwood?

September is the least humid month in Atwood, Colorado, with an average relative humidity of 47%.

What is the average humidity in September in Atwood?

In Atwood, Colorado, the average relative humidity in September is 47%.

How many days does it rain in September in Atwood?

In September, in Atwood, Colorado, the rain falls for 10.1 days. Throughout September, 0.98" (25mm) of precipitation is accumulated.

Does it snow in Atwood in September?

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

When it does not snow in Atwood?

In Atwood snow does not fall in June through September.

How many hours of daylight does Atwood have in September?

The average length of the day in September in Atwood, Colorado, is 12.4h.

How many hours of sunshine does Atwood have in September?

The average sunshine in September in Atwood is 10.3h.

What is the UV index reading in September in Atwood?

In Atwood, Colorado, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health risk from the exposure to the Sun's UV radiation.

Average temperature in September
Atwood, CO

Average temperature in September - Atwood, CO
  • Average high temperature in September: 78.8°F

The warmest month (with the highest average high temperature) is July (88.5°F).
The month with the lowest average high temperature is December (37.8°F).

  • Average low temperature in September: 56.3°F

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is December (23°F).

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Average pressure in September
Atwood, CO

Average pressure in September - Atwood, CO
  • Average pressure in September: 29.94"

The month with the highest atmospheric pressure is January (30.11").
The month with the lowest atmospheric pressure is June (29.83").

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Average wind speed in September
Atwood, CO

Average wind speed in September - Atwood, CO
  • Average wind speed in September: 9.5mph

The windiest month (with the highest average wind speed) is April (11.9mph).
The calmest month (with the lowest average wind speed) is August (9mph).

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Average humidity in September
Atwood, CO

Average humidity in September - Atwood, CO
  • Average humidity in September: 47%

The month with the highest relative humidity is January (65%).
The month with the lowest relative humidity is September (47%).

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Average rainfall in September
Atwood, CO

Average rainfall in September - Atwood, CO
  • Average rainfall in September: 0.98"

The wettest month (with the highest rainfall) is May (2.95").
The driest month (with the least rainfall) is January (0.35").

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Average rainfall days in September
Atwood, CO

Average rainfall days in September - Atwood, CO
  • Average rainfall days in September: 10.1 days

The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is February (4.2 days).

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Average snowfall in September
Atwood, CO

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

The month with the highest snowfall is February (2.68").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Atwood, CO

Average snowfall days in September - Atwood, CO
  • Average snowfall days in September: 0.1 days

The month with the highest number of snowfall days is February (6.7 days).
Months with the least snowfall days are June, July and August (0 days).

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

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

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in September: 10.3h

Months with the most sunshine are June and August (Average sunshine: 11.7h).
The month with the least sunshine is February (Average sunshine: 6.3h).

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Average sunshine days in September
Atwood, CO

Average sunshine days in September - Atwood, CO
  • Average sunshine days in September: 16.8 days

The month with the most sunshine days is January (22.3 days).
The month with the least sunshine days is July (9.8 days).

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Average UV index in September
Atwood, CO

Average UV index in September - Atwood, CO
  • Average UV index in September: 5

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in September
Atwood, CO

Average cloud cover in September - Atwood, CO
  • Average cloud cover in September: 19

The month with the most cloud cover is February (Cloud cover 33).
The month with the least cloud cover is August (Cloud cover 17).

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Average visibility in September
Atwood, CO

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

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

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