August weather forecast
Newcastle, UT

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Weather in August

The last month of the summer, August, is another warm month in Newcastle, Utah, with temperature in the range of an average high of 81°F (27.2°C) and an average low of 57.4°F (14.1°C).

Temperature

As Newcastle transitions into August, the average high-temperature stands at a still warm 81°F (27.2°C), offering little variation from the preceding month. A marked drop from daytime peak temperatures to an average low-temperature of 57.4°F (14.1°C) is observed during the nights in August.

Humidity

The average relative humidity in August is 39%.

Rainfall

In Newcastle, in August, during 11.8 rainfall days, 1.46" (37mm) of precipitation is typically accumulated. In Newcastle, during the entire year, the rain falls for 84.2 days and collects up to 9.21" (234mm) of precipitation.

Snowfall

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

Daylight

In Newcastle, the average length of the day in August is 13h and 34min.
On the first day of August, sunrise is at 6:38 am and sunset at 8:42 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 8:04 pm MDT.

Sunshine

In Newcastle, Utah, the average sunshine in August is 11.7h.

UV index

In Newcastle, the average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for average individuals.
Note: The UV index of 5 in August translates into these instructions:
Guard yourself - An obligation to protect skin and eyes from harm exists. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Updated: Jun 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Newcastle in August?

The high-temperature during August is 81°F (27.2°C) and the low-temperature is 57.4°F (14.1°C).

What is the average humidity in August in Newcastle?

In Newcastle, Utah, the average relative humidity in August is 39%.

How many days does it rain in August?

In Newcastle, during August, the rain falls for 11.8 days and regularly aggregates up to 1.46" (37mm) of precipitation.

When it does not snow?

June through September are months without snowfall.

How many hours of daylight does Newcastle have in August?

The average day length in August is 13h and 34min.

What time are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 6:38 am and sunset at 8:42 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 8:04 pm MDT.

How long on average sun shines in August?

The average sunshine duration in August is 11.7h.

How high is the UV index in August?

The average daily maximum UV index in August in Newcastle is 5. A UV Index reading of 3 to 5 represents a moderate health threat from unsafe 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 August
Newcastle, UT

Average temperature in August - Newcastle, UT
  • Average high temperature in August: 81°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 August: 57.4°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).

Average pressure in August
Newcastle, UT

Average pressure in August - Newcastle, UT
  • Average pressure in August: 29.92"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).

Average wind speed in August
Newcastle, UT

Average wind speed in August - Newcastle, UT
  • Average wind speed in August: 6.4mph

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).

Average humidity in August
Newcastle, UT

Average humidity in August - Newcastle, UT
  • Average humidity in August: 39%

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

Average rainfall in August
Newcastle, UT

Average rainfall in August - Newcastle, UT
  • Average rainfall in August: 1.46"

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

Average rainfall days in August
Newcastle, UT

Average rainfall days in August - Newcastle, UT
  • Average rainfall days in August: 11.8 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).

Average snowfall in August
Newcastle, UT

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

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

Average snowfall days in August
Newcastle, UT

Average snowfall days in August - Newcastle, UT
  • Average snowfall days in August: 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).

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

Average daylight in August / Average sunshine in August - Newcastle, UT
  • Average daylight in August: 13h and 4min

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 August: 11h and 4min

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).

Average sunshine days in August
Newcastle, UT

Average sunshine days in August - Newcastle, UT
  • Average sunshine days in August: 13.8 days

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

Average UV index in August
Newcastle, UT

Average UV index in August - Newcastle, UT
  • Average UV index in August: 5

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).

Average cloud cover in August
Newcastle, UT

Average cloud cover in August - Newcastle, UT
  • Average cloud cover in August: 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).

Average visibility in August
Newcastle, UT

Average visibility in August - Newcastle, UT
  • Average visibility in August: 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).

Newcastle, Utah, USA

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