September weather forecast
Redlands, CO

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Redlands, Colorado, with an average temperature ranging between min 53.1°F (11.7°C) and max 76.5°F (24.7°C).

Temperature

The onset of September entails a subtle temperature shift, as the average high-temperature eases from 84.2°F (29°C) in August to a still warm 76.5°F (24.7°C). Despite soaring daytime temperatures, Redlands registers a consistent average low-temperature of 53.1°F (11.7°C) in September.

Humidity

The average relative humidity in September in Redlands is 39%.

Rainfall

In September, in Redlands, the rain falls for 7.3 days. Throughout September, 0.63" (16mm) of precipitation is accumulated. In Redlands, during the entire year, the rain falls for 93.6 days and collects up to 8.46" (215mm) of precipitation.

Snowfall

May through September are months without snowfall in Redlands.

Daylight

The average length of the day in September is 12h and 26min.
On the first day of September, sunrise is at 6:44 am and sunset at 7:44 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 6:58 pm MDT.

Sunshine

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

UV index

In Redlands, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.
Note: A maximum high UV index of 5 in September translates into the following recommendations:
Prioritize safety - Recommendations to avert sunburn are shared. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
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Frequently asked questions

What are the temperatures in Redlands in September?

In September, in Redlands, the average high-temperature is 76.5°F (24.7°C), and the average low-temperature is 53.1°F (11.7°C).

What is the average humidity in September in Redlands?

In September, the average relative humidity in Redlands, Colorado, is 39%.

How much does it rain in Redlands in September?

In Redlands, during September, the rain falls for 7.3 days and regularly aggregates up to 0.63" (16mm) of precipitation.

When it does not snow in Redlands?

May through September are months without snowfall in Redlands.

Does it snow in Redlands in September?

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

How many hours of daylight does Redlands have in September?

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

When are sunrise and sunset in September in Redlands?

On the first day of September in Redlands, Colorado, sunrise is at 6:44 am and sunset at 7:44 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 6:58 pm MDT.

How many hours of sunshine does Redlands have in September?

In September, the average sunshine duration is 11h.

What is the UV index intensity in September in Redlands?

In September, the average daily maximum UV index in Redlands is 5. A UV Index reading of 3 to 5 represents 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
Redlands, CO

Average temperature in September - Redlands, CO
  • Average high temperature in September: 76.5°F

The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (34.9°F).

  • Average low temperature in September: 53.1°F

The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).

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Average pressure in September
Redlands, CO

Average pressure in September - Redlands, CO
  • Average pressure in September: 30"Hg

The month with the highest atmospheric pressure is January (30.27"Hg).
The months with the lowest atmospheric pressure are May and June (29.9"Hg).

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Average wind speed in September
Redlands, CO

Average wind speed in September - Redlands, CO
  • Average wind speed in September: 6.2mph

The windiest month (with the highest average wind speed) is June (7.5mph).
The calmest month (with the lowest average wind speed) is January (4.2mph).

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Average humidity in September
Redlands, CO

Average humidity in September - Redlands, CO
  • Average humidity in September: 39%

The month with the highest relative humidity is January (78%).
The month with the lowest relative humidity is June (29%).

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Average rainfall in September
Redlands, CO

Average rainfall in September - Redlands, CO
  • Average rainfall in September: 0.63"

The wettest month (with the highest rainfall) is March (1.06").
The driest month (with the least rainfall) is June (0.51").

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Average rainfall days in September
Redlands, CO

Average rainfall days in September - Redlands, CO
  • Average rainfall days in September: 7.3 days

The month with the highest number of rainy days is March (10.4 days).
The month with the least rainy days is November (5.5 days).

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Average snowfall in September
Redlands, CO

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

The month with the highest snowfall is December (3.74").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in September
Redlands, CO

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

The month with the highest number of snowfall days is January (7.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 14h and 54min).
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).

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Average sunshine days in September
Redlands, CO

Average sunshine days in September - Redlands, CO
  • Average sunshine days in September: 19.3 days

The month with the most sunshine days is November (22.3 days).
The month with the least sunshine days is February (15.8 days).

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Average UV index in September
Redlands, CO

Average UV index in September - Redlands, CO
  • Average UV index in September: 5

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).

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Average cloud cover in September
Redlands, CO

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

The month with the most cloud cover is January (Cloud cover 31).
The months with the least cloud cover are June and September (Cloud cover 11).

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Average visibility in September
Redlands, CO

Average visibility in September - Redlands, 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).

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Redlands, Colorado, USA

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