October weather forecast
Gillette, WY

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Weather in October

October takes a resounding leap towards chillier conditions with an average high dropping to 55.2°F (12.9°C). Against the golden hues of fall, temperatures plummet and prompt residents to dig out their warmer attires. Gillette in October experiences an increase in humidity levels when compared to September. Despite lower daylight hours, frequent visibility stays strong throughout the month. The onset of the cold further embellishes the contrasting beauty of Gillette in October - a sight not to be missed.

Temperature

October's arrival sees a clear drop in the average high-temperature, decreasing from September's moderately hot 73.6°F (23.1°C) to a fresh 55.2°F (12.9°C). Nighttime temperature experiences an average drop to a wintry 39.2°F (4°C) in October.

Humidity

In Gillette, the average relative humidity in October is 57%.

Rainfall

In October, the rain falls for 8.8 days. Throughout October, 1.18" (30mm) of precipitation is accumulated. Throughout the year, there are 108.9 rainfall days, and 15.59" (396mm) of precipitation is accumulated.

Snowfall

January through May, September through December are months with snowfall. In Gillette, Wyoming, in October, snow falls for 4.8 days, with typically accumulated 1.81" (46mm) of snow. Throughout the year, in Gillette, there are 50.5 snowfall days, and 19.53" (496mm) of snow is accumulated.

Daylight

In Gillette, the average length of the day in October is 10h and 58min.
On the first day of October in Gillette, Wyoming, sunrise is at 7:00 am and sunset at 6:42 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 5:52 pm MDT.

Sunshine

The average sunshine in October in Gillette is 6.6h.

UV index

In October, the average daily maximum UV index in Gillette is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index of 3 in October converts into the following recommendations:
Make use of precautions - Suggestions to resist sunburn are communicated. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Gillette in October?

During October, Gillette experiences an average high-temperature of 55.2°F (12.9°C) and a low-temperature of 39.2°F (4°C). In August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is computed to be 82.4°F (28°C).

What is the average humidity in October in Gillette?

In October, the average relative humidity in Gillette, Wyoming, is 57%.

How much does it rain in Gillette in October?

In Gillette, Wyoming, during October, the rain falls for 8.8 days and regularly aggregates up to 1.18" (30mm) of precipitation.

How much does it snow in Gillette in October?

In Gillette, Wyoming, in October, during 4.8 snowfall days, 1.81" (46mm) of snow is typically accumulated.

How many hours of daylight does Gillette have in October?

In Gillette, the average day length in October is 10h and 58min.

When are sunrise and sunset in October in Gillette?

On the first day of October in Gillette, sunrise is at 7:00 am and sunset at 6:42 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 5:52 pm MDT.

How many hours of sunshine does Gillette have in October?

In October, the average sunshine duration in Gillette, Wyoming, is 6.6h.

What is the UV index reading in October in Gillette?

In October, the average daily maximum UV index in Gillette is 3. A UV Index of 3 to 5 symbolizes a moderate health threat from exposure to the Sun's UV radiation.
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
Gillette, WY

Average temperature in October - Gillette, WY
  • Average high temperature in October: 55.2°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is December (29.7°F).

  • Average low temperature in October: 39.2°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is February (16.7°F).

Average pressure in October
Gillette, WY

Average pressure in October - Gillette, WY
  • Average pressure in October: 29.98"Hg

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

Average wind speed in October
Gillette, WY

Average wind speed in October - Gillette, WY
  • Average wind speed in October: 11mph

The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest months (with the lowest average wind speed) are July and August (9.1mph).

Average humidity in October
Gillette, WY

Average humidity in October - Gillette, WY
  • Average humidity in October: 57%

The month with the highest relative humidity is January (78%).
The month with the lowest relative humidity is August (41%).

Average rainfall in October
Gillette, WY

Average rainfall in October - Gillette, WY
  • Average rainfall in October: 1.18"

The wettest month (with the highest rainfall) is May (3.11").
The driest month (with the least rainfall) is January (0.39").

Average rainfall days in October
Gillette, WY

Average rainfall days in October - Gillette, WY
  • Average rainfall days in October: 8.8 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is February (1.5 days).

Average snowfall in October
Gillette, WY

Average snowfall in October - Gillette, WY
  • Average snowfall in October: 1.81"

The month with the highest snowfall is April (3.82").
The months with the least snowfall are June, July and August (0").

Average snowfall days in October
Gillette, WY

Average snowfall days in October - Gillette, WY
  • Average snowfall days in October: 4.8 days

The month with the highest number of snowfall days is February (9.1 days).
The months with the least snowfall days are July and August (0 days).

Average daylight in October /
Average sunshine in October
Gillette, WY

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

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in October: 6h and 4min

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

Average sunshine days in October
Gillette, WY

Average sunshine days in October - Gillette, WY
  • Average sunshine days in October: 17.5 days

The month with the most sunshine days is December (22.4 days).
The month with the least sunshine days is May (9.3 days).

Average UV index in October
Gillette, WY

Average UV index in October - Gillette, WY
  • Average UV index in October: 3

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, April, November and December (UV index 2).

Average cloud cover in October
Gillette, WY

Average cloud cover in October - Gillette, 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 16).

Average visibility in October
Gillette, WY

Average visibility in October - Gillette, WY
  • Average visibility in October: 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).

Gillette, Wyoming, USA

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