August weather forecast
Newcastle, WY

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Weather in August

August sees a slight dip in temperature yet still cloaks Newcastle in warm, comfortable summer heat. In spite of fewer daylight hours, the city enjoys extended sunshine durations. In contrast to July, the city receives an increment of rainfall measuring 2.6" (66mm). Walking through Newcastle's verdant parks in gentle rainfall could serve as a fitting end to a beautiful summer day. However, it remains crucial to stay hydrated during outings as the month maintains warm temperatures.

Temperature

The onset of August brings with it an average high-temperature of a still moderately hot 77.2°F (25.1°C), showing a negligible variation from the month before. In August, the recorded average low-temperature in Newcastle is a mild 55.8°F (13.2°C).

Humidity

The least humid month in Newcastle is August, with an average relative humidity of 53%.

Rainfall

In August, in Newcastle, the rain falls for 16.5 days. Throughout August, 2.6" (66mm) of precipitation is accumulated. In Newcastle, Wyoming, during the entire year, the rain falls for 123.2 days and collects up to 19.37" (492mm) of precipitation.

Snowfall

July and August are months without snowfall in Newcastle.

Daylight

In Newcastle, the average length of the day in August is 13h and 56min.
On the first day of August, sunrise is at 5:46 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 6:20 am and sunset at 7:33 pm MDT.

Sunshine

With an average of 11.8h of sunshine, August has the most sunshine of the year.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: In August, the maximum UV index of 5 suggests these recommendations:
Ensure safety - Imperative it is to shield skin and eyes from damage. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Stay sun-safe with clothing that is both closely woven and worn loosely.
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Frequently asked questions

What is the usual temperature for Newcastle in August?

In August, the average high-temperature and low-temperature in Newcastle are 77.2°F (25.1°C) and 55.8°F (13.2°C) respectively.

What is the least humid month in Newcastle?

With an average relative humidity of 53%, August is the least humid month in Newcastle.

What is the average humidity in August in Newcastle?

In August, the average relative humidity in Newcastle is 53%.

How many days does it rain in August in Newcastle?

In Newcastle, Wyoming, in August, it is raining for 16.5 days, with typically 2.6" (66mm) of accumulated precipitation.

When it does not snow in Newcastle?

In Newcastle, Wyoming, snow does not fall in July and August.

Does it snow in Newcastle in August?

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

What is the average length of the day in August in Newcastle?

The average day length in August in Newcastle, Wyoming, is 13h and 56min.

When are sunrise and sunset in August in Newcastle?

On the first day of August in Newcastle, Wyoming, sunrise is at 5:46 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 6:20 am and sunset at 7:33 pm MDT.

What month has the most sunshine in Newcastle?

With an average of 11.8h of sunshine, August has the most sunshine of the year.

How long on average sun shines in August in Newcastle?

In August, the average sunshine duration is 11.8h.

What are the months with the highest UV index in Newcastle?

The months with the highest UV index in Newcastle are June through August, with an average maximum UV index of 5.

What is the UV index reading in August in Newcastle?

The average daily maximum UV index in August in Newcastle is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability 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 August
Newcastle, WY

Average temperature in August - Newcastle, WY
  • Average high temperature in August: 77.2°F

The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is December (26.2°F).

  • Average low temperature in August: 55.8°F

The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is February (10.8°F).

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Average pressure in August
Newcastle, WY

Average pressure in August - Newcastle, WY
  • Average pressure in August: 29.89"Hg

The months with the highest atmospheric pressure are January and December (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

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Average wind speed in August
Newcastle, WY

Average wind speed in August - Newcastle, WY
  • Average wind speed in August: 7.8mph

The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest month (with the lowest average wind speed) is August (7.8mph).

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Average humidity in August
Newcastle, WY

Average humidity in August - Newcastle, WY
  • Average humidity in August: 53%

The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is August (53%).

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Average rainfall in August
Newcastle, WY

Average rainfall in August - Newcastle, WY
  • Average rainfall in August: 2.6"

The wettest months (with the highest rainfall) are June and July (2.68").
The driest month (with the least rainfall) is December (0.67").

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Average rainfall days in August
Newcastle, WY

Average rainfall days in August - Newcastle, WY
  • Average rainfall days in August: 16.5 days

The month with the highest number of rainy days is June (17.9 days).
The month with the least rainy days is February (3.7 days).

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Average snowfall in August
Newcastle, WY

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

The month with the highest snowfall is April (8.82").
The months with the least snowfall are July and August (0").

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Average snowfall days in August
Newcastle, WY

Average snowfall days in August - Newcastle, WY
  • Average snowfall days in August: 0 days

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

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

Average daylight in August / Average sunshine in August - Newcastle, WY
  • Average daylight in August: 13h and 5min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in August: 11h and 5min

The month with the most sunshine is August (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 36min).

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Average sunshine days in August
Newcastle, WY

Average sunshine days in August - Newcastle, WY
  • Average sunshine days in August: 10 days

The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is June (9.7 days).

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Average UV index in August
Newcastle, WY

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

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, April, October, November and December (UV index 2).

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Average cloud cover in August
Newcastle, WY

Average cloud cover in August - Newcastle, WY
  • Average cloud cover in August: 17

The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 17).

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Average visibility in August
Newcastle, WY

Average visibility in August - Newcastle, WY
  • Average visibility in August: 6mi

The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).

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Newcastle, Wyoming, USA

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