October weather forecast
Newcastle, WY

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Weather in October

October sees a further drop in temperatures as autumn becomes established in Newcastle. Enveloped in autumnal hues, the city gracefully makes room for colder weather and frosty mornings. October experiences heightened wind speeds of up to 10.5mph (16.9km/h). While not intense, the wind adds a fittingly eerie touch to the Halloween decorations dotted around the city. Despite shorter daylight hours, October's clear visibility aids safe journeys during twilight.

Temperature

Newcastle, Wyoming, witnesses a significant decrease in the average high-temperature with the arrival of October, falling from September's pleasant 68.5°F (20.3°C) to a fresh 50°F (10°C). Throughout the month of October, Newcastle witnesses an average low-temperature of 32.9°F (0.5°C).

Humidity

In October, the average relative humidity is 66%.

Rainfall

In October, in Newcastle, the rain falls for 8.1 days. Throughout October, 1.46" (37mm) 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

Months with snowfall in Newcastle are January through June, September through December. In Newcastle, in October, during 8.3 snowfall days, 4.88" (124mm) of snow is typically accumulated. In Newcastle, during the entire year, snow falls for 80.3 days and aggregates up to 41.38" (1051mm) of snow.

Daylight

The average length of the day in October is 10h and 59min.
On the first day of October, sunrise is at 6:55 am and sunset at 6:37 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 5:48 pm MDT.

Sunshine

In October, the average sunshine is 6.9h.

UV index

January through April, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the average person.
Note: The UV index of 2 during October leads to these advisories:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
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Frequently asked questions

What is the average October temperature in Newcastle?

The high-temperature in Newcastle during October is 50°F (10°C) and the low-temperature is 32.9°F (0.5°C).

What is the average humidity in October in Newcastle?

In Newcastle, Wyoming, the average relative humidity in October is 66%.

How many days does it rain in October in Newcastle?

In Newcastle, in October, it is raining for 8.1 days, with typically 1.46" (37mm) of accumulated precipitation.

How much does it snow in Newcastle in October?

In Newcastle, during October, snow falls for 8.3 days and regularly aggregates up to 4.88" (124mm) of snow.

How many hours of daylight does Newcastle have in October?

In October, the average day length in Newcastle, Wyoming, is 10h and 59min.

When is the sunrise / sunset in October in Newcastle?

On the first day of October in Newcastle, sunrise is at 6:55 am and sunset at 6:37 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 5:48 pm MDT.

How many hours of sunshine does Newcastle have in October?

In Newcastle, the average sunshine duration in October is 6.9h.

When is the lowest UV index in Newcastle?

January through April, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Newcastle, Wyoming.

What is the UV index reading in October in Newcastle?

In Newcastle, Wyoming, the average daily maximum UV index in October is 2. A UV Index reading of 2, and below, represents a low health risk from 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 October
Newcastle, WY

Average temperature in October - Newcastle, WY
  • Average high temperature in October: 50°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 October: 32.9°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 October
Newcastle, WY

Average pressure in October - Newcastle, WY
  • Average pressure in October: 29.98"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 October
Newcastle, WY

Average wind speed in October - Newcastle, WY
  • Average wind speed in October: 9.6mph

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 October
Newcastle, WY

Average humidity in October - Newcastle, WY
  • Average humidity in October: 66%

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 October
Newcastle, WY

Average rainfall in October - Newcastle, WY
  • Average rainfall in October: 1.46"

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 October
Newcastle, WY

Average rainfall days in October - Newcastle, WY
  • Average rainfall days in October: 8.1 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 October
Newcastle, WY

Average snowfall in October - Newcastle, WY
  • Average snowfall in October: 4.88"

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 October
Newcastle, WY

Average snowfall days in October - Newcastle, WY
  • Average snowfall days in October: 8.3 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 October /
Average sunshine in October
Newcastle, WY

Average daylight in October / Average sunshine in October - Newcastle, WY
  • Average daylight in October: 11h and 0min

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 October: 6h 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 October
Newcastle, WY

Average sunshine days in October - Newcastle, WY
  • Average sunshine days in October: 16.1 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 October
Newcastle, WY

Average UV index in October - Newcastle, WY
  • Average UV index in October: 2

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 October
Newcastle, WY

Average cloud cover in October - Newcastle, WY
  • Average cloud cover in October: 29

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 October
Newcastle, WY

Average visibility in October - Newcastle, WY
  • Average visibility in October: 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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