September weather forecast
Silver Cliff, CO

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Weather in September

September, the first month of the autumn in Silver Cliff, is also an agreeable month, with temperature in the range of an average low of 48.2°F (9°C) and an average high of 73.2°F (22.9°C).

Temperature

The onset of September entails a subtle temperature shift, as the average high-temperature eases from a moderately hot 79.7°F (26.5°C) in August to a pleasant 73.2°F (22.9°C). Silver Cliff experiences a significant contrast between daily highs and an average nighttime temperature of 48.2°F (9°C) during September.

Humidity

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

Rainfall

In Silver Cliff, during September, the rain falls for 10.1 days and regularly aggregates up to 0.79" (20mm) of precipitation. Throughout the year, there are 108.6 rainfall days, and 10.83" (275mm) of precipitation is accumulated.

Snowfall

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

Daylight

In Silver Cliff, the average length of the day in September is 12h and 25min.
On the first day of September in Silver Cliff, sunrise is at 6:32 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 6:45 pm MDT.

Sunshine

In Silver Cliff, the average sunshine in September is 11.1h.

UV index

The average daily maximum UV index in September in Silver Cliff is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the average person.
Note: The daily maximum UV index of 4 in September interprets into the following advice:
Take necessary precautions - Defending against sun damage is advocated. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
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Frequently asked questions

What is the usual temperature for Silver Cliff in September?

September temperatures in Silver Cliff vary between a high-temperature of 73.2°F (22.9°C) and a low-temperature of 48.2°F (9°C). In July, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which factors the actual air temperature with the relative humidity, is calculated to be 82.4°F (28°C).

What is the average humidity in September in Silver Cliff?

The average relative humidity in September is 47%.

How much does it rain in Silver Cliff in September?

In Silver Cliff, Colorado, in September, it is raining for 10.1 days, with typically 0.79" (20mm) of accumulated precipitation.

When it does not snow in Silver Cliff?

June through September are months without snowfall in Silver Cliff, Colorado.

Does it snow in Silver Cliff in September?

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

What is the average length of the day in September in Silver Cliff?

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

When is the sunrise / sunset in September in Silver Cliff?

In September, on the first day of the month, sunrise is at 6:32 am and sunset at 7:30 pm. On the last day of the month, in Silver Cliff, sunrise is at 6:57 am and sunset at 6:45 pm MDT.

How long on average sun shines in September in Silver Cliff?

The average sunshine duration in September in Silver Cliff is 11.1h.

What is the UV index intensity in September in Silver Cliff?

In Silver Cliff, Colorado, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium health risk 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
Silver Cliff, CO

Average temperature in September - Silver Cliff, CO
  • Average high temperature in September: 73.2°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (37°F).

  • Average low temperature in September: 48.2°F

The month with the highest average low temperature is July (55.8°F).
The coldest month (with the lowest average low temperature) is December (18.5°F).

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Average pressure in September
Silver Cliff, CO

Average pressure in September - Silver Cliff, CO
  • Average pressure in September: 30.04"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is April (29.91"Hg).

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Average wind speed in September
Silver Cliff, CO

Average wind speed in September - Silver Cliff, CO
  • Average wind speed in September: 6mph

The windiest months (with the highest average wind speed) are January, February and March (7.5mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

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Average humidity in September
Silver Cliff, CO

Average humidity in September - Silver Cliff, CO
  • Average humidity in September: 47%

The months with the highest relative humidity are January and February (69%).
The month with the lowest relative humidity is June (40%).

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Average rainfall in September
Silver Cliff, CO

Average rainfall in September - Silver Cliff, CO
  • Average rainfall in September: 0.79"

The wettest month (with the highest rainfall) is July (2.2").
The driest months (with the least rainfall) are January and November (0.31").

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Average rainfall days in September
Silver Cliff, CO

Average rainfall days in September - Silver Cliff, CO
  • Average rainfall days in September: 10.1 days

The month with the highest number of rainy days is July (19.5 days).
The month with the least rainy days is November (2.7 days).

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Average snowfall in September
Silver Cliff, CO

Average snowfall in September - Silver Cliff, CO
  • Average snowfall in September: 0"

The month with the highest snowfall is February (5.63").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Silver Cliff, CO

Average snowfall days in September - Silver Cliff, CO
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (8.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Silver Cliff, CO

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

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in September: 11h and 1min

The month with the most sunshine is June (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 7h and 0min).

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Average sunshine days in September
Silver Cliff, CO

Average sunshine days in September - Silver Cliff, CO
  • Average sunshine days in September: 14.5 days

The month with the most sunshine days is November (24.7 days).
The month with the least sunshine days is July (4.7 days).

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Average UV index in September
Silver Cliff, CO

Average UV index in September - Silver Cliff, 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
Silver Cliff, CO

Average cloud cover in September - Silver Cliff, CO
  • Average cloud cover in September: 14

The months with the most cloud cover are February and April (Cloud cover 23).
The months with the least cloud cover are June, September, October and November (Cloud cover 14).

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Average visibility in September
Silver Cliff, CO

Average visibility in September - Silver Cliff, 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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Silver Cliff, Colorado, USA

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