October weather forecast and climate
Granby, CO

Weather in October

October, like September, is a frosty autumn month in Granby, Colorado, with temperature in the range of an average high of 47.8°F (8.8°C) and an average low of 25.5°F (-3.6°C).

Temperature

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

Humidity

In Granby, the average relative humidity is 62%.

Rainfall

In October, the rain falls for 4.9 days. Throughout October, 0.79" (20mm) of precipitation is accumulated. In Granby, during the entire year, the rain falls for 96.3 days and collects up to 11.54" (293mm) of precipitation.

Snowfall

January through June, August through December are months with snowfall in Granby. In Granby, Colorado, in October, during 9 snowfall days, 5.67" (144mm) of snow is typically accumulated. In Granby, Colorado, during the entire year, snow falls for 110.7 days, and aggregates up to 59.88" (1521mm) of snow.

Daylight

In Granby, the average length of the day is 11.1h.

Sunshine

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 reading of 2, and below, represents a minimal health hazard from the exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 2 interpret into the following advice:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in October in Granby?

In October, in Granby, the average high-temperature is 47.8°F (8.8°C), and 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 many days does it rain in October in Granby?

In Granby, Colorado, in October, during 4.9 rainfall days, 0.79" (20mm) of precipitation is typically accumulated.

How much does it snow in Granby in October?

In Granby, in October, snow falls for 9 days, with typically accumulated 5.67" (144mm) of snow.

How many hours of daylight does Granby have in October?

In Granby, the average length of the day in October is 11.1h.

How long on average sun shines in October in Granby?

The average sunshine in October is 7.2h.

What are the months 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.

What is the UV index reading in October in Granby?

The average daily maximum UV index in October in Granby is 2. A UV Index reading of 2, and below, represents a minimal hazard to health from unsafe exposure to the Sun's UV rays.

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"

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

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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: 11.1h

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in October: 7.2h

Months with the most sunshine are July and August (Average sunshine: 11.8h).
The month with the least sunshine is February (Average sunshine: 6.2h).

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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

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

Months with the highest UV index are June, July and August (UV index 4).
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

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

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