September weather forecast
Croydon, UT

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Weather in September

The first month of the autumn, September, is also an agreeable month in Croydon, Utah, with temperature in the range of an average low of 48.6°F (9.2°C) and an average high of 71.2°F (21.8°C).

Temperature

The beginning of September marks a decrease in the average high-temperature, transitioning from a warm 81°F (27.2°C) in August to a pleasant 71.2°F (21.8°C). Croydon endures a clear shift from daytime heat to a mean low-temperature of 48.6°F (9.2°C) during September nights.

Humidity

The average relative humidity in September is 46%.

Rainfall

In Croydon, Utah, in September, it is raining for 8.5 days, with typically 0.94" (24mm) of accumulated precipitation. Throughout the year, there are 116.8 rainfall days, and 18.31" (465mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through June, September through December. September is the first month it typically snows. Throughout September, in the average 0.1 snowfall days, it receives 0.28" (7mm) of snow. In Croydon, during the entire year, snow falls for 69.4 days and aggregates up to 70.67" (1795mm) of snow.

Daylight

In Croydon, the average length of the day in September is 12h and 27min.
On the first day of the month, sunrise is at 6:53 am and sunset at 7:58 pm. On the last day of September, sunrise is at 7:22 am and sunset at 7:09 pm MDT.

Sunshine

The average sunshine in September is 10h.

UV index

In September, the average daily maximum UV index 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: In September, the average maximum UV index of 4 translates into the following recommendations:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Updated: Jul 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in September?

An average high-temperature, in September, in Croydon, is 71.2°F (21.8°C) and the average low-temperature is 48.6°F (9.2°C). The average heat index (a.k.a. 'real feel', 'feels like'), which factors the actual air temperature with the relative humidity, in August is computed to be 80.6°F (27°C).

What is the average humidity in September?

In September, the average relative humidity is 46%.

How many days does it rain in September?

In Croydon, during September, the rain falls for 8.5 days and regularly aggregates up to 0.94" (24mm) of precipitation.

When does it start to snow?

September is the first month it typically snows. Throughout September, in the average 0.1 snowfall days, it receives 0.28" (7mm) of snow.

How many hours of daylight does Croydon have in September?

In September, the average day length is 12h and 27min.

When are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:53 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:09 pm MDT.

How many hours of sunshine does Croydon have in September?

In September, the average sunshine duration is 10h.

What is the UV index reading in September?

In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Croydon, UT

Average temperature in September - Croydon, UT
  • Average high temperature in September: 71.2°F

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is December (31.8°F).

  • Average low temperature in September: 48.6°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 (17.6°F).

Average pressure in September
Croydon, UT

Average pressure in September - Croydon, UT
  • Average pressure in September: 29.96"Hg

The month with the highest atmospheric pressure is January (30.28"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in September
Croydon, UT

Average wind speed in September - Croydon, UT
  • Average wind speed in September: 5.7mph

The windiest month (with the highest average wind speed) is April (6.1mph).
The calmest month (with the lowest average wind speed) is January (4.6mph).

Average humidity in September
Croydon, UT

Average humidity in September - Croydon, UT
  • Average humidity in September: 46%

The month with the highest relative humidity is January (86%).
The months with the lowest relative humidity are July and August (40%).

Average rainfall in September
Croydon, UT

Average rainfall in September - Croydon, UT
  • Average rainfall in September: 0.94"

The wettest month (with the highest rainfall) is February (2.32").
The driest month (with the least rainfall) is August (0.55").

Average rainfall days in September
Croydon, UT

Average rainfall days in September - Croydon, UT
  • Average rainfall days in September: 8.5 days

The month with the highest number of rainy days is April (14.6 days).
The month with the least rainy days is July (7 days).

Average snowfall in September
Croydon, UT

Average snowfall in September - Croydon, UT
  • Average snowfall in September: 0.28"

The month with the highest snowfall is January (16.22").
The months with the least snowfall are July and August (0").

Average snowfall days in September
Croydon, UT

Average snowfall days in September - Croydon, UT
  • Average snowfall days in September: 0.1 days

The month with the highest number of snowfall days is January (14.7 days).
The months with the least snowfall days are July and August (0 days).

Average daylight in September /
Average sunshine in September
Croydon, UT

Average daylight in September / Average sunshine in September - Croydon, UT
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in September: 10h and 0min

The months with the most sunshine are June, July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 30min).

Average sunshine days in September
Croydon, UT

Average sunshine days in September - Croydon, UT
  • Average sunshine days in September: 17.5 days

The month with the most sunshine days is October (19.7 days).
The month with the least sunshine days is February (9.8 days).

Average UV index in September
Croydon, UT

Average UV index in September - Croydon, UT
  • 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, March, October, November and December (UV index 2).

Average cloud cover in September
Croydon, UT

Average cloud cover in September - Croydon, UT
  • Average cloud cover in September: 13

The month with the most cloud cover is February (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 10).

Average visibility in September
Croydon, UT

Average visibility in September - Croydon, UT
  • 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).

Croydon, Utah, USA

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