September weather forecast
Monte Vista, CO

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Weather in September

September, the first month of the autumn in Monte Vista, is also an agreeable month, with an average temperature varying between 70.3°F and 43.5°F.

Temperature

With the onset of September, Monte Vista experiences a modest temperature adjustment, with the average high-temperature gently receding from a warm 76.1°F in August to an agreeable 70.3°F. Despite the high peak temperatures, Monte Vista witnesses an average nighttime cooling to a frosty 43.5°F in September.

Humidity

In Monte Vista, the average relative humidity in September is 51%.

Rainfall

In September, in Monte Vista, the rain falls for 12.2 days. Throughout September, 1.14" of precipitation is accumulated. In Monte Vista, during the entire year, the rain falls for 112.8 days and collects up to 11.93" of precipitation.

Snowfall

Months with snowfall are January through May, September through December. September is the first month it typically snows. Throughout September, in the average 0.3 snowfall days, it receives 0.04" of snow. In Monte Vista, during the entire year, snow falls for 56.6 days and aggregates up to 30.67" of snow.

Daylight

In Monte Vista, Colorado, the average length of the day in September is 12h and 25min.
On the first day of the month, sunrise is at 6:34 am and sunset at 7:34 pm. On the last day of September, in Monte Vista, sunrise is at 6:59 am and sunset at 6:49 pm MDT.

Sunshine

In Monte Vista, the average sunshine in September is 11.3h.

UV index

In September, the average daily maximum UV index in Monte Vista, Colorado, is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the average person.
Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Undertake protective steps - Recommendations to avoid sunburn are issued. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
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FAQ

What are the temperatures in Monte Vista in September?

The high-temperature, in September, in Monte Vista, is 70.3°F, while the low-temperature averages to 43.5°F.

What is the average humidity in September in Monte Vista?

In September, the average relative humidity in Monte Vista is 51%.

How much does it rain in Monte Vista in September?

In Monte Vista, Colorado, in September, during 12.2 rainfall days, 1.14" of precipitation is typically accumulated.

When does it start snowing in Monte Vista?

September is the first month it typically snows in Monte Vista, Colorado. Throughout September, in the average 0.3 snowfall days, it receives 0.04" of snow.

How many hours of daylight does Monte Vista have in September?

In Monte Vista, the average day length in September is 12h and 25min.

When are sunrise and sunset in September in Monte Vista?

On the first day of September in Monte Vista, Colorado, sunrise is at 6:34 am and sunset at 7:34 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 6:49 pm MDT.

How long on average sun shines in September in Monte Vista?

In September, the average sunshine duration is 11.3h.

What is the UV index reading in September in Monte Vista?

In Monte Vista, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate vulnerability from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
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
Monte Vista, CO

Average temperature in September - Monte Vista, CO
  • Average high temperature in September: 70.3°F

The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (30.4°F).

  • Average low temperature in September: 43.5°F

The month with the highest average low temperature is July (48.7°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).

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Average pressure in September
Monte Vista, CO

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

The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is April (29.92"Hg).

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Average wind speed in September
Monte Vista, CO

Average wind speed in September - Monte Vista, CO
  • Average wind speed in September: 4.4mph

The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is August (4mph).

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Average humidity in September
Monte Vista, CO

Average humidity in September - Monte Vista, CO
  • Average humidity in September: 51%

The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is June (39%).

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Average rainfall in September
Monte Vista, CO

Average rainfall in September - Monte Vista, CO
  • Average rainfall in September: 1.14"

The wettest month (with the highest rainfall) is July (2.44").
The driest month (with the least rainfall) is November (0.43").

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Average rainfall days in September
Monte Vista, CO

Average rainfall days in September - Monte Vista, CO
  • Average rainfall days in September: 12.2 days

The month with the highest number of rainy days is July (20.8 days).
The month with the least rainy days is November (3.4 days).

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Average snowfall in September
Monte Vista, CO

Average snowfall in September - Monte Vista, CO
  • Average snowfall in September: 0.04"

The month with the highest snowfall is March (5.51").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in September
Monte Vista, CO

Average snowfall days in September - Monte Vista, CO
  • Average snowfall days in September: 0.3 days

The month with the highest number of snowfall days is February (10.2 days).
The months with the least snowfall days are July and August (0 days).

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Average daylight in September /
Average sunshine in September
Monte Vista, CO

Average daylight in September / Average sunshine in September - Monte Vista, 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 months with the least sunshine are January and February (Average sunshine: 6h and 54min).

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Average sunshine days in September
Monte Vista, CO

Average sunshine days in September - Monte Vista, CO
  • Average sunshine days in September: 11.5 days

The month with the most sunshine days is November (22.7 days).
The month with the least sunshine days is July (5.8 days).

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Average UV index in September
Monte Vista, CO

Average UV index in September - Monte Vista, 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, March, October, November and December (UV index 2).

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Average cloud cover in September
Monte Vista, CO

Average cloud cover in September - Monte Vista, CO
  • Average cloud cover in September: 13

The months with the most cloud cover are January and February (Cloud cover 25).
The months with the least cloud cover are June, September, October and November (Cloud cover 13).

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Average visibility in September
Monte Vista, CO

Average visibility in September - Monte Vista, 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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Monte Vista, Colorado, USA

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