September weather forecast
Westplains, CO

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Weather in September

September, the first month of the autumn in Westplains, is still a warm month, with temperature in the range of an average low of 56.3°F (13.5°C) and an average high of 78.8°F (26°C).

Temperature

In September, the average high-temperature marginally decreases from a hot 86.2°F (30.1°C) in August to a warm 78.8°F (26°C). A marked difference from the daytime temperatures, Westplains's nighttime temperature falls to an average low of 56.3°F (13.5°C) in September.

Humidity

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

Rainfall

In Westplains, during September, the rain falls for 10.1 days and regularly aggregates up to 0.98" (25mm) of precipitation. In Westplains, during the entire year, the rain falls for 123.2 days and collects up to 15.39" (391mm) of precipitation.

Snowfall

June through September are months without snowfall in Westplains.

Daylight

The average length of the day in September is 12h and 27min.
On the first day of September in Westplains, Colorado, sunrise is at 6:21 am and sunset at 7:25 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 6:37 pm MDT.

Sunshine

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

UV index

In Westplains, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: In September, the UV index of 5 transforms into the following advice:
Take necessary precautions - Protection from skin and eye injury is mandatory. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
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Frequently asked questions

What is the temperature in September in Westplains?

In Westplains, in September, the average high-temperature is 78.8°F (26°C), and the average low-temperature is 56.3°F (13.5°C). In August, the average heat index (a.k.a. 'real feel', 'feels like'), which factors the actual air temperature with the relative humidity, is calculated to be 87.8°F (31°C).

What is the least humid month in Westplains?

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

What is the average humidity in September in Westplains?

The average relative humidity in September in Westplains, Colorado, is 47%.

How much does it rain in Westplains in September?

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

When it does not snow in Westplains?

In Westplains, Colorado, snow does not fall in June through September.

Does it snow in Westplains in September?

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

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

The average day length in September in Westplains, Colorado, is 12h and 27min.

When is the sunrise / sunset in September in Westplains?

In September, on the first day of the month, sunrise is at 6:21 am and sunset at 7:25 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 6:37 pm MDT.

How long on average sun shines in September in Westplains?

The average sunshine duration in September is 10.3h.

What is the UV index intensity in September in Westplains?

In September, the average daily maximum UV index in Westplains is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health from 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
Westplains, CO

Average temperature in September - Westplains, 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
Westplains, CO

Average pressure in September - Westplains, CO
  • Average pressure in September: 29.94"Hg

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

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Average wind speed in September
Westplains, CO

Average wind speed in September - Westplains, 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
Westplains, CO

Average humidity in September - Westplains, 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
Westplains, CO

Average rainfall in September - Westplains, 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
Westplains, CO

Average rainfall days in September - Westplains, 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
Westplains, CO

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

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

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Average snowfall days in September
Westplains, CO

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

The month with the highest number of snowfall days is February (6.7 days).
The 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
Westplains, CO

Average daylight in September / Average sunshine in September - Westplains, CO
  • Average daylight in September: 12h and 3min

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 months with the most sunshine are June and August (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 6h and 18min).

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Average sunshine days in September
Westplains, CO

Average sunshine days in September - Westplains, 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
Westplains, CO

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

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

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Average cloud cover in September
Westplains, CO

Average cloud cover in September - Westplains, 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
Westplains, CO

Average visibility in September - Westplains, 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).

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Westplains, Colorado, USA

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