September weather forecast
Trimble, CO

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Weather in September

The first month of the autumn, September, is also an enjoyable month in Trimble, Colorado, with temperature in the range of an average low of 45.1°F (7.3°C) and an average high of 67.5°F (19.7°C).

Temperature

September is characterized by a slight reduction in average high-temperature, easing from a moderately hot 73.9°F (23.3°C) in August to a refreshing 67.5°F (19.7°C). In Trimble, the average temperature during the nights of September marks a significant drop from the daily high, settling at a frosty 45.1°F (7.3°C).

Humidity

In September, the average relative humidity is 53%.

Rainfall

In Trimble, in September, it is raining for 14.4 days, with typically 2.01" (51mm) of accumulated precipitation. Throughout the year, there are 113.4 rainfall days, and 20.63" (524mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall in Trimble.

Daylight

In Trimble, the average length of the day in September is 12h and 25min.
On the first day of the month, sunrise is at 6:42 am and sunset at 7:39 pm. On the last day of September, in Trimble, sunrise is at 7:06 am and sunset at 6:55 pm MDT.

Sunshine

In September, the average sunshine in Trimble is 10.9h.

UV index

In Trimble, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: In September, an average UV index of 4 transforms into the following instructions:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. It's recommended to limit sun exposure when its radiation is at its peak during midday. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
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Frequently asked questions

What is the temperature in September in Trimble?

The average high-temperature and low-temperature in Trimble during September are 67.5°F (19.7°C) and 45.1°F (7.3°C) respectively.

What is the average humidity in September in Trimble?

The average relative humidity in September in Trimble is 53%.

How many days does it rain in September in Trimble?

In September, the rain falls for 14.4 days. Throughout September, 2.01" (51mm) of precipitation is accumulated.

When it does not snow in Trimble?

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

Does it snow in Trimble in September?

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

How many hours of daylight does Trimble have in September?

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

What time are sunrise and sunset in September in Trimble?

In September, on the first day of the month, sunrise is at 6:42 am and sunset at 7:39 pm. On the last day of the month, in Trimble, Colorado, sunrise is at 7:06 am and sunset at 6:55 pm MDT.

How many hours of sunshine does Trimble have in September?

The average sunshine duration in September in Trimble is 10.9h.

What is the UV index intensity in September in Trimble?

In September, the average daily maximum UV index in Trimble, Colorado, is 4. A UV Index of 3 to 5 symbolizes a medium hazard to health 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
Trimble, CO

Average temperature in September - Trimble, CO
  • Average high temperature in September: 67.5°F

The warmest month (with the highest average high temperature) is July (76.3°F).
The month with the lowest average high temperature is January (31.3°F).

  • Average low temperature in September: 45.1°F

The month with the highest average low temperature is July (51.6°F).
The coldest month (with the lowest average low temperature) is January (13.3°F).

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Average pressure in September
Trimble, CO

Average pressure in September - Trimble, CO
  • Average pressure in September: 30.01"Hg

The month with the highest atmospheric pressure is January (30.22"Hg).
The months with the lowest atmospheric pressure are April, May and June (29.91"Hg).

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Average wind speed in September
Trimble, CO

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

The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is December (4.9mph).

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Average humidity in September
Trimble, CO

Average humidity in September - Trimble, CO
  • Average humidity in September: 53%

The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is June (37%).

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Average rainfall in September
Trimble, CO

Average rainfall in September - Trimble, CO
  • Average rainfall in September: 2.01"

The wettest month (with the highest rainfall) is July (3.07").
The driest month (with the least rainfall) is June (0.94").

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Average rainfall days in September
Trimble, CO

Average rainfall days in September - Trimble, CO
  • Average rainfall days in September: 14.4 days

The month with the highest number of rainy days is July (21.5 days).
The month with the least rainy days is November (3.4 days).

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Average snowfall in September
Trimble, CO

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

The month with the highest snowfall is February (14.57").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Trimble, CO

Average snowfall days in September - Trimble, CO
  • Average snowfall days in September: 0.1 days

The month with the highest number of snowfall days is February (12.8 days).
The months with the least snowfall days are June, July and August (0 days).

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

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

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in September: 10h and 5min

The month with the most sunshine is June (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 6h and 6min).

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Average sunshine days in September
Trimble, CO

Average sunshine days in September - Trimble, CO
  • Average sunshine days in September: 11.9 days

The month with the most sunshine days is November (20.6 days).
The month with the least sunshine days is July (6.9 days).

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Average UV index in September
Trimble, CO

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

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

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

The month with the most cloud cover is February (Cloud cover 33).
The month with the least cloud cover is June (Cloud cover 12).

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Average visibility in September
Trimble, CO

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

The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).

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Trimble, Colorado, USA

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