September weather forecast
Mosca, CO

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Weather in September

September, the first month of the autumn in Mosca, is still a pleasant month, with an average temperature fluctuating between 72.3°F (22.4°C) and 45.5°F (7.5°C).

Temperature

With the arrival of September, Mosca notices a mild change in the average high-temperature, sliding from August's warm 78.6°F (25.9°C) to an agreeable 72.3°F (22.4°C). Mosca reports a marked divergence from daytime peaks throughout September, with lows averaging at a chilly 45.5°F (7.5°C).

Humidity

In Mosca, the average relative humidity in September is 48%.

Rainfall

In Mosca, during September, the rain falls for 7.5 days and regularly aggregates up to 0.63" (16mm) of precipitation. In Mosca, during the entire year, the rain falls for 77.3 days and collects up to 7.24" (184mm) of precipitation.

Snowfall

June through September are months without snowfall in Mosca.

Daylight

In Mosca, the average length of the day in September is 12h and 25min.
On the first day of September, sunrise is at 6:34 am and sunset at 7:32 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 6:47 pm MDT.

Sunshine

The average sunshine in September in Mosca, Colorado, is 11.3h.

UV index

In Mosca, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the average person.
Note: In September, the maximum UV index of 4 suggests these recommendations:
Guard yourself - Precautionary measures against sun damage are advocated. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
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Frequently asked questions

What are September temperatures in Mosca?

In Mosca, 72.3°F (22.4°C) is the average high-temperature and 45.5°F (7.5°C) is the average low-temperature during September. In July, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines relative humidity and air temperature, is evaluated at 82.4°F (28°C).

What is the average humidity in September in Mosca?

In September, the average relative humidity is 48%.

How much does it rain in Mosca in September?

In September, in Mosca, Colorado, the rain falls for 7.5 days. Throughout September, 0.63" (16mm) of precipitation is accumulated.

When it does not snow in Mosca?

June through September are months without snowfall in Mosca, Colorado.

Does it snow in Mosca in September?

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

How many hours of daylight does Mosca have in September?

In September, the average day length in Mosca, Colorado, is 12h and 25min.

When is the sunrise / sunset in September in Mosca?

In September, on the first day of the month, sunrise is at 6:34 am and sunset at 7:32 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 6:47 pm MDT.

How many hours of sunshine does Mosca have in September?

In September, the average sunshine duration in Mosca is 11.3h.

What is the UV index reading in September in Mosca?

The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate health threat from unprotected exposure to UV radiation.
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
Mosca, CO

Average temperature in September - Mosca, CO
  • Average high temperature in September: 72.3°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (31.3°F).

  • Average low temperature in September: 45.5°F

The month with the highest average low temperature is July (50.5°F).
The coldest month (with the lowest average low temperature) is January (11.8°F).

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Average pressure in September
Mosca, CO

Average pressure in September - Mosca, CO
  • Average pressure in September: 30.05"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is April (29.91"Hg).

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Average wind speed in September
Mosca, CO

Average wind speed in September - Mosca, CO
  • Average wind speed in September: 4.9mph

The windiest month (with the highest average wind speed) is April (7mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).

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Average humidity in September
Mosca, CO

Average humidity in September - Mosca, CO
  • Average humidity in September: 48%

The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is June (37%).

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Average rainfall in September
Mosca, CO

Average rainfall in September - Mosca, CO
  • Average rainfall in September: 0.63"

The wettest month (with the highest rainfall) is July (1.18").
The driest months (with the least rainfall) are November and December (0.31").

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Average rainfall days in September
Mosca, CO

Average rainfall days in September - Mosca, CO
  • Average rainfall days in September: 7.5 days

The month with the highest number of rainy days is July (13.3 days).
The month with the least rainy days is November (2.1 days).

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Average snowfall in September
Mosca, CO

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

The months with the highest snowfall are January and March (3.5").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Mosca, CO

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

The month with the highest number of snowfall days is February (7.2 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
Mosca, CO

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

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in September: 11h and 2min

The month with the most sunshine is June (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 6h and 48min).

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Average sunshine days in September
Mosca, CO

Average sunshine days in September - Mosca, CO
  • Average sunshine days in September: 17.9 days

The month with the most sunshine days is November (25.8 days).
The month with the least sunshine days is July (13.3 days).

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Average UV index in September
Mosca, CO

Average UV index in September - Mosca, 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).

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Average cloud cover in September
Mosca, CO

Average cloud cover in September - Mosca, CO
  • Average cloud cover in September: 12

The months with the most cloud cover are January and February (Cloud cover 25).
The months with the least cloud cover are June, September and October (Cloud cover 12).

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Average visibility in September
Mosca, CO

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

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

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Mosca, Colorado, USA

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