October weather forecast
New Castle, CO

Share

Weather in October

October, like September, in New Castle, Colorado, is a cool autumn month, with temperature in the range of an average low of 33.1°F (0.6°C) and an average high of 54.7°F (12.6°C).

Temperature

October's arrival signals a distinct temperature shift, dropping from a pleasant 70.9°F (21.6°C) in September to a cool 54.7°F (12.6°C). New Castle's nighttime average of 33.1°F (0.6°C) during October reflects a substantial decrease from the daytime temperature.

Humidity

In October, the average relative humidity in New Castle is 56%.

Rainfall

In New Castle, in October, during 7.9 rainfall days, 1.06" (27mm) of precipitation is typically accumulated. In New Castle, during the entire year, the rain falls for 107.7 days and collects up to 11.89" (302mm) of precipitation.

Snowfall

Months with snowfall in New Castle, Colorado, are January through May, October through December. October is the first month it typically snows. Throughout October, in the average 2 snowfall days, it receives 1.57" (40mm) of snow. Throughout the year, there are 58.6 snowfall days, and 36.85" (936mm) of snow is accumulated.

Daylight

In New Castle, the average length of the day in October is 11h and 8min.
On the first day of the month, sunrise is at 7:07 am and sunset at 6:52 pm. On the last day of October, sunrise is at 7:38 am and sunset at 6:09 pm MDT.

Sunshine

In October, the average sunshine in New Castle is 7.3h.

UV index

January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index in New Castle. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: An average UV index of 2 in October transforms into this advice:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in New Castle in October?

The high-temperature, in October, in New Castle, is 54.7°F (12.6°C), while the low-temperature averages to 33.1°F (0.6°C).

What is the average humidity in October in New Castle?

The average relative humidity in October is 56%.

How many days does it rain in October in New Castle?

In New Castle, Colorado, in October, during 7.9 rainfall days, 1.06" (27mm) of precipitation is typically accumulated.

When does it start snowing in New Castle?

October is the first month it typically snows in New Castle. Throughout October, in the average 2 snowfall days, it receives 1.57" (40mm) of snow.

How many hours of daylight does New Castle have in October?

The average day length in October in New Castle, Colorado, is 11h and 8min.

What time are sunrise and sunset in October in New Castle?

On the first day of October in New Castle, sunrise is at 7:07 am and sunset at 6:52 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 6:09 pm MDT.

How long on average sun shines in October in New Castle?

In October, the average sunshine duration is 7.3h.

When is the lowest UV index in New Castle?

The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 2.

What is the UV index intensity in October in New Castle?

The average daily maximum UV index in October is 2. A UV Index of 2, and less, symbolizes a minimal hazard to health from unsafe 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
New Castle, CO

Average temperature in October - New Castle, CO
  • Average high temperature in October: 54.7°F

The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (30.6°F).

  • Average low temperature in October: 33.1°F

The month with the highest average low temperature is July (50.4°F).
The coldest month (with the lowest average low temperature) is January (12°F).

Average pressure in October
New Castle, CO

Average pressure in October - New Castle, CO
  • Average pressure in October: 30.06"Hg

The month with the highest atmospheric pressure is January (30.27"Hg).
The month with the lowest atmospheric pressure is May (29.93"Hg).

Average wind speed in October
New Castle, CO

Average wind speed in October - New Castle, CO
  • Average wind speed in October: 4.8mph

The windiest month (with the highest average wind speed) is June (6.2mph).
The calmest month (with the lowest average wind speed) is January (4.1mph).

Average humidity in October
New Castle, CO

Average humidity in October - New Castle, CO
  • Average humidity in October: 56%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is June (43%).

Average rainfall in October
New Castle, CO

Average rainfall in October - New Castle, CO
  • Average rainfall in October: 1.06"

The wettest month (with the highest rainfall) is April (1.57").
The driest month (with the least rainfall) is September (0.51").

Average rainfall days in October
New Castle, CO

Average rainfall days in October - New Castle, CO
  • Average rainfall days in October: 7.9 days

The month with the highest number of rainy days is April (14 days).
The month with the least rainy days is June (5.9 days).

Average snowfall in October
New Castle, CO

Average snowfall in October - New Castle, CO
  • Average snowfall in October: 1.57"

The month with the highest snowfall is February (8.74").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in October
New Castle, CO

Average snowfall days in October - New Castle, CO
  • Average snowfall days in October: 2 days

The month with the highest number of snowfall days is January (13 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in October /
Average sunshine in October
New Castle, CO

Average daylight in October / Average sunshine in October - New Castle, CO
  • Average daylight in October: 11h and 1min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in October: 7h and 2min

The months with the most sunshine are June, July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 6h and 6min).

Average sunshine days in October
New Castle, CO

Average sunshine days in October - New Castle, CO
  • Average sunshine days in October: 20 days

The month with the most sunshine days is June (20.7 days).
The month with the least sunshine days is April (11.7 days).

Average UV index in October
New Castle, CO

Average UV index in October - New Castle, CO
  • 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, October, November and December (UV index 2).

Average cloud cover in October
New Castle, CO

Average cloud cover in October - New Castle, CO
  • Average cloud cover in October: 17

The month with the most cloud cover is February (Cloud cover 39).
The months with the least cloud cover are June and September (Cloud cover 12).

Average visibility in October
New Castle, CO

Average visibility in October - New Castle, CO
  • Average visibility in October: 6mi

The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).

New Castle, Colorado, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location