September weather forecast
La Junta, CO

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Weather in September

September, the first month of the autumn in La Junta, is still a warm month, with an average temperature fluctuating between 82.9°F (28.3°C) and 60.8°F (16°C).

Temperature

The average high-temperature slightly decreases in September, shifting from a tropical 90°F (32.2°C) in August to a warm 82.9°F (28.3°C). La Junta experiences a substantial divergence from daytime highs in September, with average lows hovering around a refreshing 60.8°F (16°C).

Heat index

During September, the heat index is computed to be 82.4°F (28°C). If exposure and ongoing activity persist, they might induce a state of tiredness and heat cramps.
The heat index's values are generally associated with conditions in shade and light breezes. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is a numerical representation of warmth when taking temperature and moisture levels into account. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.

Humidity

In La Junta, the average relative humidity in September is 42%.

Rainfall

In La Junta, during September, the rain falls for 6.4 days and regularly aggregates up to 0.75" (19mm) of precipitation. In La Junta, during the entire year, the rain falls for 83.3 days and collects up to 10.16" (258mm) of precipitation.

Snowfall

In La Junta, snow does not fall in May through September.

Daylight

In September, the average length of the day is 12h and 25min.
On the first day of September, sunrise is at 6:24 am and sunset at 7:23 pm. On the last day of the month, sunrise is at 6:49 am and sunset at 6:38 pm MDT.

Sunshine

The average sunshine in September in La Junta is 10.7h.

UV index

In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: An average maximum UV index of 5 in September leads to these recommendations:
Make use of precautions - It is urged to ward off sun damage. To guard against the harmful effects of the Sun, minimize exposure during midday. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Updated: Jul 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in September?

The average high-temperature and low-temperature during September are 82.9°F (28.3°C) and 60.8°F (16°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in September is computed to be 82.4°F (28°C).

What is the average humidity in September?

In La Junta, the average relative humidity in September is 42%.

How many days does it rain in September?

In September, the rain falls for 6.4 days. Throughout September, 0.75" (19mm) of precipitation is accumulated.

When it does not snow?

May through September are months without snowfall.

Does it snow in September?

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

How many hours of daylight does La Junta have in September?

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

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 6:24 am and sunset at 7:23 pm. On the last day of the month, sunrise is at 6:49 am and sunset at 6:38 pm MDT.

How long on average sun shines in September?

In September, the average sunshine duration is 10.7h.

How high is the UV index in September?

In September, the average daily maximum UV index is 5. A UV Index estimate 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
La Junta, CO

Average temperature in September - La Junta, CO
  • Average high temperature in September: 82.9°F

The warmest month (with the highest average high temperature) is July (92.5°F).
The month with the lowest average high temperature is December (43.7°F).

  • Average low temperature in September: 60.8°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 (26.2°F).

Average pressure in September
La Junta, CO

Average pressure in September - La Junta, CO
  • Average pressure in September: 29.95"Hg

The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).

Average wind speed in September
La Junta, CO

Average wind speed in September - La Junta, CO
  • Average wind speed in September: 9.8mph

The windiest month (with the highest average wind speed) is April (11.4mph).
The calmest months (with the lowest average wind speed) are January and December (7.8mph).

Average humidity in September
La Junta, CO

Average humidity in September - La Junta, CO
  • Average humidity in September: 42%

The month with the highest relative humidity is January (58%).
The month with the lowest relative humidity is June (37%).

Average rainfall in September
La Junta, CO

Average rainfall in September - La Junta, CO
  • Average rainfall in September: 0.75"

The wettest month (with the highest rainfall) is July (1.77").
The driest month (with the least rainfall) is November (0.31").

Average rainfall days in September
La Junta, CO

Average rainfall days in September - La Junta, CO
  • Average rainfall days in September: 6.4 days

The month with the highest number of rainy days is July (13.3 days).
The month with the least rainy days is January (2.4 days).

Average snowfall in September
La Junta, CO

Average snowfall in September - La Junta, CO
  • Average snowfall in September: 0"

The month with the highest snowfall is February (2.87").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
La Junta, CO

Average snowfall days in September - La Junta, CO
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (5.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
La Junta, CO

Average daylight in September / Average sunshine in September - La Junta, 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 4min

The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 6h and 42min).

Average sunshine days in September
La Junta, CO

Average sunshine days in September - La Junta, CO
  • Average sunshine days in September: 20.7 days

The month with the most sunshine days is December (24.9 days).
The month with the least sunshine days is July (14.9 days).

Average UV index in September
La Junta, CO

Average UV index in September - La Junta, 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).

Average cloud cover in September
La Junta, CO

Average cloud cover in September - La Junta, 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).

Average visibility in September
La Junta, CO

Average visibility in September - La Junta, 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).

La Junta, Colorado, USA

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