September weather forecast
Howard, CO

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Weather in September

September, the first month of the autumn in Howard, is still a pleasant month, with temperature in the range of an average low of 41.2°F (5.1°C) and an average high of 68.5°F (20.3°C).

Temperature

With the onset of September, Howard's average high-temperature slightly adjusts, moderately receding from August's moderately hot 74.8°F (23.8°C) to a pleasant 68.5°F (20.3°C). Howard, in September, experiences a marked contrast from daytime zeniths to a steady average low-temperature of 41.2°F (5.1°C).

Humidity

In September, the average relative humidity is 51%.

Rainfall

In Howard, Colorado, during September, the rain falls for 6 days and regularly aggregates up to 0.39" (10mm) of precipitation. Throughout the year, in Howard, there are 58.1 rainfall days, and 5.83" (148mm) of precipitation is accumulated.

Snowfall

July through September are months without snowfall.

Daylight

In September, the average length of the day in Howard is 12h and 25min.
On the first day of the month, sunrise is at 6:33 am and sunset at 7:32 pm. On the last day of September, in Howard, sunrise is at 6:58 am and sunset at 6:47 pm MDT.

Sunshine

The average sunshine in September is 10.9h.

UV index

The average daily maximum UV index in September in Howard, Colorado, is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for average individuals.
Note: A maximum high UV index of 3 in September translates into the following recommendations:
Take necessary precautions - Protection from skin and eye injury is mandatory. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
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Frequently asked questions

What are the temperatures in Howard in September?

Howard in September has an average high-temperature of 68.5°F (20.3°C) and an average low-temperature of 41.2°F (5.1°C).

What is the average humidity in September in Howard?

In Howard, Colorado, the average relative humidity in September is 51%.

How many days does it rain in September in Howard?

In Howard, in September, it is raining for 6 days, with typically 0.39" (10mm) of accumulated precipitation.

When it does not snow in Howard?

In Howard, Colorado, snow does not fall in July through September.

Does it snow in Howard in September?

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

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

The average day length in September is 12h and 25min.

What time are sunrise and sunset in September in Howard?

On the first day of September, sunrise is at 6:33 am and sunset at 7:32 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 6:47 pm MDT.

How long on average sun shines in September in Howard?

In September, the average sunshine duration is 10.9h.

What is the UV index reading in September in Howard?

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

Average temperature in September - Howard, CO
  • Average high temperature in September: 68.5°F

The warmest month (with the highest average high temperature) is July (76.8°F).
The month with the lowest average high temperature is January (31.5°F).

  • Average low temperature in September: 41.2°F

The month with the highest average low temperature is July (47.5°F).
The coldest month (with the lowest average low temperature) is January (11.3°F).

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Average pressure in September
Howard, CO

Average pressure in September - Howard, CO
  • Average pressure in September: 30.06"Hg

The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is April (29.93"Hg).

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Average wind speed in September
Howard, CO

Average wind speed in September - Howard, CO
  • Average wind speed in September: 5.6mph

The windiest month (with the highest average wind speed) is February (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).

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Average humidity in September
Howard, CO

Average humidity in September - Howard, CO
  • Average humidity in September: 51%

The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is June (41%).

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Average rainfall in September
Howard, CO

Average rainfall in September - Howard, CO
  • Average rainfall in September: 0.39"

The wettest month (with the highest rainfall) is July (1.34").
The driest month (with the least rainfall) is January (0.2").

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Average rainfall days in September
Howard, CO

Average rainfall days in September - Howard, CO
  • Average rainfall days in September: 6 days

The month with the highest number of rainy days is July (12.9 days).
The month with the least rainy days is November (1.2 days).

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Average snowfall in September
Howard, CO

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

The month with the highest snowfall is February (3.43").
The months with the least snowfall are July, August and September (0").

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Average snowfall days in September
Howard, CO

Average snowfall days in September - Howard, CO
  • Average snowfall days in September: 0.2 days

The month with the highest number of snowfall days is February (7.6 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
Howard, CO

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

The month with the most sunshine is June (Average sunshine: 11h and 36min).
The month with the least sunshine is February (Average sunshine: 6h and 36min).

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Average sunshine days in September
Howard, CO

Average sunshine days in September - Howard, CO
  • Average sunshine days in September: 22.1 days

The month with the most sunshine days is November (25.5 days).
The month with the least sunshine days is July (15.6 days).

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Average UV index in September
Howard, CO

Average UV index in September - Howard, CO
  • Average UV index in September: 3

The months with the highest UV index are June and July (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
Howard, CO

Average cloud cover in September - Howard, CO
  • Average cloud cover in September: 18

The month with the most cloud cover is February (Cloud cover 32).
The month with the least cloud cover is June (Cloud cover 15).

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Average visibility in September
Howard, CO

Average visibility in September - Howard, 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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Howard, Colorado, USA

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