September weather forecast
Cimarron, CO

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Cimarron, Colorado, with an average temperature varying between 48.7°F (9.3°C) and 74.5°F (23.6°C).

Temperature

The commencement of September includes a gentle temperature shift, with the average high-temperature dropping a bit from 82°F (27.8°C) in August to a still warm 74.5°F (23.6°C). Cimarron's nighttime temperature in September demonstrates a noticeable plunge to a frosty 48.7°F (9.3°C).

Humidity

In Cimarron, the average relative humidity in September is 43%.

Rainfall

In Cimarron, Colorado, in September, during 7.6 rainfall days, 0.67" (17mm) of precipitation is typically accumulated. Throughout the year, there are 104.5 rainfall days, and 9.84" (250mm) of precipitation is accumulated.

Snowfall

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

Daylight

In September, the average length of the day is 12h and 25min.
On the first day of the month, sunrise is at 6:40 am and sunset at 7:39 pm. On the last day of September, in Cimarron, sunrise is at 7:05 am and sunset at 6:54 pm MDT.

Sunshine

In Cimarron, the average sunshine in September is 11h.

UV index

The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The daily high UV index of 4 in September translates into this advice:
Take necessary precautions - Protection from skin and eye injury is mandatory. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average September temperature in Cimarron?

The average high-temperature and low-temperature in Cimarron, Colorado, during September are 74.5°F (23.6°C) and 48.7°F (9.3°C) respectively. The average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines relative humidity and air temperature, in August is appraised at 82.4°F (28°C).

What is the average humidity in September in Cimarron?

In Cimarron, Colorado, the average relative humidity in September is 43%.

How many days does it rain in September in Cimarron?

In Cimarron, during September, the rain falls for 7.6 days and regularly aggregates up to 0.67" (17mm) of precipitation.

When it does not snow in Cimarron?

June through September are months without snowfall in Cimarron, Colorado.

Does it snow in Cimarron in September?

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

What is the average length of the day in September in Cimarron?

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

When is the sunrise / sunset in September in Cimarron?

On the first day of September in Cimarron, Colorado, sunrise is at 6:40 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 6:54 pm MDT.

How many hours of sunshine does Cimarron have in September?

In Cimarron, the average sunshine duration in September is 11h.

What is the UV index intensity in September in Cimarron?

In Cimarron, Colorado, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium health risk from unprotected exposure to 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
Cimarron, CO

Average temperature in September - Cimarron, CO
  • Average high temperature in September: 74.5°F

The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (33.4°F).

  • Average low temperature in September: 48.7°F

The month with the highest average low temperature is July (55.9°F).
The coldest month (with the lowest average low temperature) is January (15.3°F).

Average pressure in September
Cimarron, CO

Average pressure in September - Cimarron, CO
  • Average pressure in September: 30.03"Hg

The month with the highest atmospheric pressure is January (30.25"Hg).
The month with the lowest atmospheric pressure is May (29.92"Hg).

Average wind speed in September
Cimarron, CO

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

The windiest month (with the highest average wind speed) is June (7.6mph).
The calmest month (with the lowest average wind speed) is January (4.4mph).

Average humidity in September
Cimarron, CO

Average humidity in September - Cimarron, CO
  • Average humidity in September: 43%

The month with the highest relative humidity is January (79%).
The month with the lowest relative humidity is June (32%).

Average rainfall in September
Cimarron, CO

Average rainfall in September - Cimarron, CO
  • Average rainfall in September: 0.67"

The wettest month (with the highest rainfall) is March (1.18").
The driest month (with the least rainfall) is June (0.47").

Average rainfall days in September
Cimarron, CO

Average rainfall days in September - Cimarron, CO
  • Average rainfall days in September: 7.6 days

The month with the highest number of rainy days is April (12.4 days).
The month with the least rainy days is November (6.1 days).

Average snowfall in September
Cimarron, CO

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

The month with the highest snowfall is December (6.22").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Cimarron, CO

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

The month with the highest number of snowfall days is January (11.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Cimarron, 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 30min).

  • Average sunshine in September: 11h and 0min

The month with the most sunshine is June (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 6h and 18min).

Average sunshine days in September
Cimarron, CO

Average sunshine days in September - Cimarron, CO
  • Average sunshine days in September: 19.6 days

The month with the most sunshine days is November (21.6 days).
The month with the least sunshine days is April (13.3 days).

Average UV index in September
Cimarron, CO

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

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).

Average cloud cover in September
Cimarron, CO

Average cloud cover in September - Cimarron, CO
  • Average cloud cover in September: 11

The months with the most cloud cover are January and February (Cloud cover 30).
The months with the least cloud cover are June and September (Cloud cover 11).

Average visibility in September
Cimarron, CO

Average visibility in September - Cimarron, CO
  • Average visibility in September: 6mi

The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).

Cimarron, Colorado, USA

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