September weather forecast
Genoa, CO

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Weather in September

The first month of the autumn, September, is still a warm month in Genoa, Colorado, with temperature in the range of an average low of 55.8°F (13.2°C) and an average high of 76.8°F (24.9°C).

Temperature

Genoa's progression into September involves a minor drop in the average high-temperature, slightly receding from a warm 84°F (28.9°C) in August to a still moderately hot 76.8°F (24.9°C). During the month of September, the temperature in Genoa falls to an average of 55.8°F (13.2°C).

Humidity

The months with the lowest humidity are June and September, with an average relative humidity of 46%.

Rainfall

In Genoa, in September, it is raining for 8.2 days, with typically 0.55" (14mm) of accumulated precipitation. In Genoa, during the entire year, the rain falls for 83.6 days and collects up to 9.41" (239mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall. September is the first month it typically snows. Throughout September, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow. Throughout the year, there are 26.7 snowfall days, and 9.02" (229mm) of snow is accumulated.

Daylight

In September, the average length of the day is 12h and 26min.
On the first day of the month, sunrise is at 6:23 am and sunset at 7:24 pm. On the last day of September, in Genoa, sunrise is at 6:49 am and sunset at 6:37 pm MDT.

Sunshine

The average sunshine in September in Genoa is 10.6h.

UV index

The average daily maximum UV index in September in Genoa is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.
Note: The maximum UV index of 5 during September translates into these guidelines:
Ensure safety - Sun damage prevention is strongly urged. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. During bright days, sunglasses that offer UVA and UVB defense are recommended. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
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Frequently asked questions

What are the temperatures in Genoa in September?

In September, the average high-temperature and low-temperature in Genoa, Colorado, are 76.8°F (24.9°C) and 55.8°F (13.2°C) respectively. In August, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 84.2°F (29°C).

What are the least humid months in Genoa?

The months with the lowest humidity in Genoa are June and September, with an average relative humidity of 46%.

What is the average humidity in September in Genoa?

The average relative humidity in September in Genoa, Colorado, is 46%.

How much does it rain in Genoa in September?

In Genoa, in September, during 8.2 rainfall days, 0.55" (14mm) of precipitation is typically accumulated.

When does it start to snow in Genoa?

September is the first month it typically snows in Genoa. Throughout September, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow.

How many hours of daylight does Genoa have in September?

In Genoa, Colorado, the average day length in September is 12h and 26min.

When is the sunrise / sunset in September in Genoa?

On the first day of September in Genoa, Colorado, sunrise is at 6:23 am and sunset at 7:24 pm. On the last day of the month, sunrise is at 6:49 am and sunset at 6:37 pm MDT.

How long on average sun shines in September in Genoa?

In Genoa, the average sunshine duration in September is 10.6h.

What is the UV index reading in September in Genoa?

The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health from exposure to Sun's UV rays.
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
Genoa, CO

Average temperature in September - Genoa, CO
  • Average high temperature in September: 76.8°F

The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is December (39°F).

  • Average low temperature in September: 55.8°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is December (22.3°F).

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Average pressure in September
Genoa, CO

Average pressure in September - Genoa, CO
  • Average pressure in September: 29.95"Hg

The months with the highest atmospheric pressure are January and December (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

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Average wind speed in September
Genoa, CO

Average wind speed in September - Genoa, CO
  • Average wind speed in September: 9.7mph

The windiest month (with the highest average wind speed) is April (12.2mph).
The calmest month (with the lowest average wind speed) is August (9.3mph).

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Average humidity in September
Genoa, CO

Average humidity in September - Genoa, CO
  • Average humidity in September: 46%

The month with the highest relative humidity is February (63%).
The months with the lowest relative humidity are June and September (46%).

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Average rainfall in September
Genoa, CO

Average rainfall in September - Genoa, CO
  • Average rainfall in September: 0.55"

The wettest month (with the highest rainfall) is May (1.77").
The driest month (with the least rainfall) is December (0.2").

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Average rainfall days in September
Genoa, CO

Average rainfall days in September - Genoa, CO
  • Average rainfall days in September: 8.2 days

The month with the highest number of rainy days is July (14.3 days).
The month with the least rainy days is November (1.7 days).

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Average snowfall in September
Genoa, CO

Average snowfall in September - Genoa, CO
  • Average snowfall in September: 0.04"

The month with the highest snowfall is February (1.93").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in September
Genoa, CO

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

The month with the highest number of snowfall days is February (6.1 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
Genoa, CO

Average daylight in September / Average sunshine in September - Genoa, 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 4min

The months with the most sunshine are June, July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 6h and 36min).

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Average sunshine days in September
Genoa, CO

Average sunshine days in September - Genoa, CO
  • Average sunshine days in September: 18.4 days

The month with the most sunshine days is December (24.9 days).
The month with the least sunshine days is July (13.4 days).

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Average UV index in September
Genoa, CO

Average UV index in September - Genoa, 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
Genoa, CO

Average cloud cover in September - Genoa, CO
  • Average cloud cover in September: 16

The months with the most cloud cover are February and April (Cloud cover 27).
The months with the least cloud cover are June and September (Cloud cover 16).

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Average visibility in September
Genoa, CO

Average visibility in September - Genoa, 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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Genoa, Colorado, USA

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