September weather forecast
Gilcrest, CO

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Weather in September

September, the first month of the autumn in Gilcrest, is also a moderately hot month, with an average temperature varying between 53.4°F (11.9°C) and 79.7°F (26.5°C).

Temperature

As August shifts into September, a minor alteration in temperatures is observed, with average highs reducing from a hot 87.8°F (31°C) to a warm 79.7°F (26.5°C). In Gilcrest, the nighttime temperature registers a significant drop from daytime peaks to an average of 53.4°F (11.9°C) in September.

Humidity

The months with the lowest humidity in Gilcrest are August and September, with an average relative humidity of 42%.

Rainfall

In September, the rain falls for 4.4 days. Throughout September, 0.2" (5mm) of precipitation is accumulated. Throughout the year, there are 66.3 rainfall days, and 4.02" (102mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

The average length of the day in September in Gilcrest is 12h and 26min.
On the first day of the month, sunrise is at 6:27 am and sunset at 7:30 pm. On the last day of September, sunrise is at 6:55 am and sunset at 6:42 pm MDT.

Sunshine

In September, the average sunshine is 10.9h.

UV index

In Gilcrest, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for average individuals.
Note: In September, the maximum UV index of 4 suggests these recommendations:
Ensure safety - Recommendations to avert sunburn are presented. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Enhance your sun protection with tightly woven, yet airy clothing.
Updated: Aug 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average September temperature?

The high-temperature, in September, in Gilcrest, is 79.7°F (26.5°C), while the low-temperature averages to 53.4°F (11.9°C). In August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 87.8°F (31°C).

What are the least humid months?

The months with the lowest humidity are August and September, with an average relative humidity of 42%.

What is the average humidity in September?

The average relative humidity in September is 42%.

How much does it rain in September?

In September, the rain falls for 4.4 days. Throughout September, 0.2" (5mm) of precipitation is accumulated.

When it does not snow in Gilcrest?

In Gilcrest, snow does not fall in June through September.

Does it snow in September?

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

How many hours of daylight does Gilcrest have in September?

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

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 6:27 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 6:42 pm MDT.

How many hours of sunshine does Gilcrest have in September?

In September, the average sunshine duration is 10.9h.

How high is the UV index in September in Gilcrest?

In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate vulnerability from exposure to the Sun's 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
Gilcrest, CO

Average temperature in September - Gilcrest, CO
  • Average high temperature in September: 79.7°F

The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is December (39.9°F).

  • Average low temperature in September: 53.4°F

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is December (20.7°F).

Average pressure in September
Gilcrest, CO

Average pressure in September - Gilcrest, CO
  • Average pressure in September: 29.99"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

Average wind speed in September
Gilcrest, CO

Average wind speed in September - Gilcrest, CO
  • Average wind speed in September: 5.8mph

The windiest month (with the highest average wind speed) is April (7.4mph).
The calmest month (with the lowest average wind speed) is December (5.5mph).

Average humidity in September
Gilcrest, CO

Average humidity in September - Gilcrest, CO
  • Average humidity in September: 42%

The months with the highest relative humidity are January and February (64%).
The months with the lowest relative humidity are August and September (42%).

Average rainfall in September
Gilcrest, CO

Average rainfall in September - Gilcrest, CO
  • Average rainfall in September: 0.2"

The wettest month (with the highest rainfall) is May (0.67").
The driest months (with the least rainfall) are January and December (0.12").

Average rainfall days in September
Gilcrest, CO

Average rainfall days in September - Gilcrest, CO
  • Average rainfall days in September: 4.4 days

The month with the highest number of rainy days is May (10 days).
The months with the least rainy days are January and November (3 days).

Average snowfall in September
Gilcrest, CO

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

The month with the highest snowfall is February (1.73").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Gilcrest, CO

Average snowfall days in September - Gilcrest, CO
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (6.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Gilcrest, CO

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

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in September: 10h and 5min

The month with the most sunshine is June (Average sunshine: 12h and 0min).
The month with the least sunshine is February (Average sunshine: 6h and 42min).

Average sunshine days in September
Gilcrest, CO

Average sunshine days in September - Gilcrest, CO
  • Average sunshine days in September: 21.7 days

The month with the most sunshine days is December (26.3 days).
The month with the least sunshine days is July (17.3 days).

Average UV index in September
Gilcrest, CO

Average UV index in September - Gilcrest, CO
  • Average UV index in September: 4

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).

Average cloud cover in September
Gilcrest, CO

Average cloud cover in September - Gilcrest, CO
  • Average cloud cover in September: 15

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 15).

Average visibility in September
Gilcrest, CO

Average visibility in September - Gilcrest, 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).

Gilcrest, Colorado, USA

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