September weather forecast
Newcastle, UT

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Weather in September

September, the first month of the autumn in Newcastle, is also a moderately hot month, with an average temperature ranging between min 50.9°F (10.5°C) and max 73.4°F (23°C).

Temperature

September's arrival aligns with a minor decrease in average high-temperatures, from August's 81°F (27.2°C) to a still warm 73.4°F (23°C). Despite higher daytime temperatures, nighttime averages fall to a fresh 50.9°F (10.5°C) in September in Newcastle.

Humidity

In September, the average relative humidity is 40%.

Rainfall

In Newcastle, Utah, during September, the rain falls for 7.4 days and regularly aggregates up to 0.67" (17mm) of precipitation. Throughout the year, in Newcastle, there are 84.2 rainfall days, and 9.21" (234mm) of precipitation is accumulated.

Snowfall

In Newcastle, snow does not fall in June through September.

Daylight

In Newcastle, the average length of the day in September is 12h and 25min.
On the first day of the month, sunrise is at 7:05 am and sunset at 8:02 pm. On the last day of September, sunrise is at 7:29 am and sunset at 7:18 pm MDT.

Sunshine

The average sunshine in September in Newcastle is 9.8h.

UV index

In September, the average daily maximum UV index is 4. 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: The maximum daily UV index of 4 in September interprets into the following recommendations:
Take precautions - Protection against sun damage is advised. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
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Frequently asked questions

What is the average September temperature in Newcastle?

The average high-temperature, in September, in Newcastle, is 73.4°F (23°C), while the average low-temperature is 50.9°F (10.5°C).

What is the average humidity in September in Newcastle?

In September, the average relative humidity in Newcastle is 40%.

How much does it rain in Newcastle in September?

In Newcastle, Utah, during September, the rain falls for 7.4 days and regularly aggregates up to 0.67" (17mm) of precipitation.

When it does not snow in Newcastle?

In Newcastle, snow does not fall in June through September.

Does it snow in Newcastle in September?

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

How many hours of daylight does Newcastle have in September?

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

When is the sunrise / sunset in September in Newcastle?

In September, on the first day of the month, sunrise is at 7:05 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 7:18 pm MDT.

How many hours of sunshine does Newcastle have in September?

In September, the average sunshine duration in Newcastle, Utah, is 9.8h.

How high is the UV index in September in Newcastle?

In September, the average daily maximum UV index in Newcastle is 4. A UV Index value of 3 to 5 symbolizes a moderate health threat 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
Newcastle, UT

Average temperature in September - Newcastle, UT
  • Average high temperature in September: 73.4°F

The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is December (36.5°F).

  • Average low temperature in September: 50.9°F

The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is December (20.8°F).

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Average pressure in September
Newcastle, UT

Average pressure in September - Newcastle, UT
  • Average pressure in September: 29.93"Hg

The month with the highest atmospheric pressure is January (30.21"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

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Average wind speed in September
Newcastle, UT

Average wind speed in September - Newcastle, UT
  • Average wind speed in September: 6.5mph

The windiest month (with the highest average wind speed) is June (8.5mph).
The calmest month (with the lowest average wind speed) is January (6.2mph).

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Average humidity in September
Newcastle, UT

Average humidity in September - Newcastle, UT
  • Average humidity in September: 40%

The month with the highest relative humidity is January (75%).
The month with the lowest relative humidity is June (26%).

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Average rainfall in September
Newcastle, UT

Average rainfall in September - Newcastle, UT
  • Average rainfall in September: 0.67"

The wettest month (with the highest rainfall) is July (1.81").
The driest month (with the least rainfall) is June (0.24").

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Average rainfall days in September
Newcastle, UT

Average rainfall days in September - Newcastle, UT
  • Average rainfall days in September: 7.4 days

The month with the highest number of rainy days is July (14.2 days).
The month with the least rainy days is November (3.2 days).

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Average snowfall in September
Newcastle, UT

Average snowfall in September - Newcastle, UT
  • Average snowfall in September: 0"

The month with the highest snowfall is December (4.25").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Newcastle, UT

Average snowfall days in September - Newcastle, UT
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is December (8.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Newcastle, UT
  • 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: 9h and 5min

The month with the most sunshine is June (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 6h and 24min).

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Average sunshine days in September
Newcastle, UT

Average sunshine days in September - Newcastle, UT
  • Average sunshine days in September: 19.1 days

The month with the most sunshine days is June (24 days).
The month with the least sunshine days is July (13.4 days).

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Average UV index in September
Newcastle, UT

Average UV index in September - Newcastle, UT
  • Average UV index in September: 4

The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in September
Newcastle, UT

Average cloud cover in September - Newcastle, UT
  • Average cloud cover in September: 10

The month with the most cloud cover is December (Cloud cover 31).
The month with the least cloud cover is June (Cloud cover 8).

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Average visibility in September
Newcastle, UT

Average visibility in September - Newcastle, UT
  • Average visibility in September: 6mi

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

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Newcastle, Utah, USA

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