September weather forecast
Olney Springs, CO

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Weather in September

September, the first month of the autumn in Olney Springs, is also a moderately hot month, with an average temperature varying between 61.2°F (16.2°C) and 83.1°F (28.4°C).

Temperature

September witnesses a gentle descent in average high-temperature, descending from August's hot 89.8°F (32.1°C) to a moderately hot 83.1°F (28.4°C). Despite substantial daily fluctuations, the average low-temperature is an enjoyable 61.2°F (16.2°C) during September.

Heat index

In September, the heat index is estimated at 82.4°F (28°C). Uninterrupted exposure and activity might result in fatigue, potentially causing heat cramps.
Factoring in the heat index, values are geared towards shaded areas with light breezes. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.

Humidity

The average relative humidity in September in Olney Springs is 41%.

Rainfall

In Olney Springs, in September, it is raining for 7.2 days, with typically 0.71" (18mm) of accumulated precipitation. In Olney Springs, during the entire year, the rain falls for 92.8 days and collects up to 10.67" (271mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

The average length of the day in September is 12h and 25min.
On the first day of September, sunrise is at 6:26 am and sunset at 7:24 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 6:39 pm MDT.

Sunshine

The average sunshine in September in Olney Springs, Colorado, is 10.8h.

UV index

The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the average person.
Note: An average UV index of 5 in September transforms into this advice:
Undertake precautions - It is suggested to shield oneself from sunburn. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
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Frequently asked questions

Is it hot in Olney Springs during September?

The high-temperature in Olney Springs during September is 83.1°F (28.4°C) and the low-temperature is 61.2°F (16.2°C). In September, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which factors the actual air temperature with the relative humidity, is estimated at 82.4°F (28°C).

What is the average humidity in September in Olney Springs?

The average relative humidity in September in Olney Springs is 41%.

How much does it rain in Olney Springs in September?

In Olney Springs, in September, during 7.2 rainfall days, 0.71" (18mm) of precipitation is typically accumulated.

When it does not snow in Olney Springs?

In Olney Springs, snow does not fall in June through September.

Does it snow in Olney Springs in September?

In Olney Springs, in September, it doesn't snow. In October, it regularly snows.

What is the average length of the day in September in Olney Springs?

In Olney Springs, the average day length in September is 12h and 25min.

When are sunrise and sunset in September in Olney Springs?

On the first day of September in Olney Springs, Colorado, sunrise is at 6:26 am and sunset at 7:24 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 6:39 pm MDT.

How many hours of sunshine does Olney Springs have in September?

The average sunshine duration in September in Olney Springs is 10.8h.

What is the UV index intensity in September in Olney Springs?

In Olney Springs, Colorado, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium hazard to health from unsafe 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
Olney Springs, CO

Average temperature in September - Olney Springs, CO
  • Average high temperature in September: 83.1°F

The warmest month (with the highest average high temperature) is July (92.1°F).
The month with the lowest average high temperature is December (43.5°F).

  • Average low temperature in September: 61.2°F

The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is December (26.1°F).

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Average pressure in September
Olney Springs, CO

Average pressure in September - Olney Springs, CO
  • Average pressure in September: 29.96"Hg

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

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Average wind speed in September
Olney Springs, CO

Average wind speed in September - Olney Springs, CO
  • Average wind speed in September: 9.3mph

The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest month (with the lowest average wind speed) is December (7.4mph).

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Average humidity in September
Olney Springs, CO

Average humidity in September - Olney Springs, CO
  • Average humidity in September: 41%

The months with the highest relative humidity are January and December (57%).
The month with the lowest relative humidity is June (36%).

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Average rainfall in September
Olney Springs, CO

Average rainfall in September - Olney Springs, CO
  • Average rainfall in September: 0.71"

The wettest month (with the highest rainfall) is July (1.93").
The driest month (with the least rainfall) is November (0.35").

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Average rainfall days in September
Olney Springs, CO

Average rainfall days in September - Olney Springs, CO
  • Average rainfall days in September: 7.2 days

The month with the highest number of rainy days is July (13.5 days).
The month with the least rainy days is January (3.3 days).

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Average snowfall in September
Olney Springs, CO

Average snowfall in September - Olney Springs, CO
  • Average snowfall in September: 0"

The month with the highest snowfall is February (2.99").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Olney Springs, CO

Average snowfall days in September - Olney Springs, CO
  • Average snowfall days in September: 0 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, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Olney Springs, CO

Average daylight in September / Average sunshine in September - Olney Springs, 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: 10h and 5min

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 42min).

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Average sunshine days in September
Olney Springs, CO

Average sunshine days in September - Olney Springs, CO
  • Average sunshine days in September: 19.9 days

The month with the most sunshine days is January (24.4 days).
The month with the least sunshine days is July (14.8 days).

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Average UV index in September
Olney Springs, CO

Average UV index in September - Olney Springs, CO
  • Average UV index in September: 5

The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, November and December (UV index 2).

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Average cloud cover in September
Olney Springs, CO

Average cloud cover in September - Olney Springs, CO
  • Average cloud cover in September: 14

The months with the most cloud cover are February and April (Cloud cover 25).
The month with the least cloud cover is September (Cloud cover 14).

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Average visibility in September
Olney Springs, CO

Average visibility in September - Olney Springs, 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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Olney Springs, Colorado, USA

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