October weather forecast
Granby, CO

Weather in October

October, like September, is another chilly autumn month in Granby, Colorado, with an average temperature varying between 47.8°F (8.8°C) and 25.5°F (-3.6°C).

Temperature

In Granby, the average high-temperature in October plummets from a comfortable 64.4°F (18°C) in September to a frosty 47.8°F (8.8°C). In October, in Granby, the average low-temperature is 25.5°F (-3.6°C).

Humidity

The average relative humidity in October is 62%.

Rainfall

In Granby, during 4.9 rainfall days, 0.79" (20mm) of precipitation is typically accumulated. Throughout the year, there are 96.3 rainfall days, and 11.54" (293mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Granby, Colorado, are January through June, August through December. In Granby, snow falls for 9 days, with typically accumulated 5.67" (144mm) of snow. Throughout the year, in Granby, Colorado, there are 110.7 snowfall days, and 59.88" (1521mm) of snow is accumulated.

Daylight

The average length of the day in October is 11h and 8min.
On the first day of the month, sunrise is at 7:00 am and sunset at 6:46 pm. On the last day of October, in Granby, sunrise is at 7:31 am and sunset at 6:02 pm MDT.

Sunshine

In October, the average sunshine in Granby is 7.2h.

UV index

January through April, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Granby. A UV Index value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: The average daily UV index of 2 in October transform into the following instructions:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in October in Granby?

The average high-temperature, in October, is 47.8°F (8.8°C), while the average low-temperature is 25.5°F (-3.6°C).

What is the average humidity in October in Granby?

In Granby, Colorado, the average relative humidity in October is 62%.

How much does it rain in Granby in October?

In Granby, in October, it is raining for 4.9 days, with typically 0.79" (20mm) of accumulated precipitation.

How much does it snow in Granby in October?

In Granby, during October, snow falls for 9 days and regularly aggregates up to 5.67" (144mm) of snow.

What is the average length of the day in October in Granby?

In October, the average day length in Granby is 11h and 8min.

When are sunrise and sunset in October in Granby?

In October, on the first day of the month, sunrise is at 7:00 am and sunset at 6:46 pm. On the last day of the month, in Granby, Colorado, sunrise is at 7:31 am and sunset at 6:02 pm MDT.

How many hours of sunshine does Granby have in October?

In Granby, Colorado, the average sunshine duration in October is 7.2h.

What is the month with the lowest UV index in Granby?

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

What is the UV index intensity in October in Granby?

In Granby, Colorado, the average daily maximum UV index in October is 2. A UV Index estimate of 2, and below, represents a low health threat 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
Granby, CO

Average temperature in October - Granby, CO
  • Average high temperature in October: 47.8°F

The warmest month (with the highest average high temperature) is July (72.3°F).
The month with the lowest average high temperature is December (24.6°F).

  • Average low temperature in October: 25.5°F

The month with the highest average low temperature is July (43.7°F).
The coldest month (with the lowest average low temperature) is January (4.3°F).

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Average pressure in October
Granby, CO

Average pressure in October - Granby, CO
  • Average pressure in October: 30.05"Hg

The month with the highest atmospheric pressure is January (30.19"Hg).
The months with the lowest atmospheric pressure are April, May and June (29.93"Hg).

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Average wind speed in October
Granby, CO

Average wind speed in October - Granby, CO
  • Average wind speed in October: 6.2mph

The windiest month (with the highest average wind speed) is February (7mph).
The calmest month (with the lowest average wind speed) is August (5mph).

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Average humidity in October
Granby, CO

Average humidity in October - Granby, CO
  • Average humidity in October: 62%

The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is June (49%).

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Average rainfall in October
Granby, CO

Average rainfall in October - Granby, CO
  • Average rainfall in October: 0.79"

The wettest month (with the highest rainfall) is May (1.73").
The driest month (with the least rainfall) is August (0.55").

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Average rainfall days in October
Granby, CO

Average rainfall days in October - Granby, CO
  • Average rainfall days in October: 4.9 days

The month with the highest number of rainy days is May (12.8 days).
The month with the least rainy days is October (4.9 days).

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Average snowfall in October
Granby, CO

Average snowfall in October - Granby, CO
  • Average snowfall in October: 5.67"

The month with the highest snowfall is April (10.94").
The month with the least snowfall is July (0").

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Average snowfall days in October
Granby, CO

Average snowfall days in October - Granby, CO
  • Average snowfall days in October: 9 days

The month with the highest number of snowfall days is February (16.1 days).
The month with the least snowfall days is July (0 days).

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Average daylight in October /
Average sunshine in October
Granby, CO

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

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

  • Average sunshine in October: 7h and 1min

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: 6h and 12min).

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Average sunshine days in October
Granby, CO

Average sunshine days in October - Granby, CO
  • Average sunshine days in October: 18.3 days

The months with the most sunshine days are September and November (19.5 days).
The month with the least sunshine days is May (9.5 days).

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Average UV index in October
Granby, CO

Average UV index in October - Granby, CO
  • Average UV index in October: 2

The months with the highest UV index are June, July and August (UV index 4).
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
Granby, CO

Average cloud cover in October - Granby, CO
  • Average cloud cover in October: 20

The month with the most cloud cover is February (Cloud cover 41).
The month with the least cloud cover is September (Cloud cover 15).

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Average visibility in October
Granby, CO

Average visibility in October - Granby, CO
  • Average visibility in October: 6mi

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

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