Granby
Colorado, USA
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Granby, CO

January, like December, is another subzero cold winter month in Granby, Colorado, with average temperature fluctuating between 1°F (-17.2°C) and 28°F (-2.2°C). January is the coldest month, with an average high-temperature of 28°F (-2.2°C) and an average low-temperature of 1°F (-17.2°C). Weather in January »
The last month of the winter, February, is also a subzero cold month in Granby, Colorado, with average temperature varying between 30.9°F (-0.6°C) and 1°F (-17.2°C). In February, the average high-temperature is essentially the same as in January - a still freezing cold 30.9°F (-0.6°C). Weather in February »

The first month of the spring, March, is a wintry month in Granby, Colorado, with temperature in the range of an average low of 9°F (-12.8°C) and an average high of 37°F (2.8°C). In Granby, the average high-temperature in March slightly increases, from a freezing cold 30.9°F (-0.6°C) in February, to a cold 37°F (2.8°C). Weather in March »

April in Granby, Colorado, is a frosty spring month, with average temperature ranging between max 46.9°F (8.3°C) and min 19.9°F (-6.7°C). In Granby, the average high-temperature in April increases, from a cold 37°F (2.8°C) in March, to a frosty 46.9°F (8.3°C). Weather in April »

May, the last month of the spring, in Granby, is a moderate month, with average temperature ranging between min 28.9°F (-1.7°C) and max 59°F (15°C). In May, the average high-temperature rises, from a frosty 46.9°F (8.3°C) in April, to a moderate 59°F (15°C). Weather in May »

The first month of the summer, June, is an agreeable month in Granby, Colorado, with average temperature ranging between min 36°F (2.2°C) and max 69.1°F (20.6°C). In June, the average high-temperature rises, from a mild 59°F (15°C) in May, to a pleasant 69.1°F (20.6°C). Weather in June »

July in Granby, Colorado, is a moderately hot summer month, with average temperature varying between 41°F (5°C) and 75°F (23.9°C). July is the warmest month, with an average high-temperature of 75°F (23.9°C) and an average low-temperature of 41°F (5°C). Weather in July »

The last month of the summer, August, is another pleasant month in Granby, Colorado, with average temperature ranging between min 39.9°F (4.4°C) and max 73°F (22.8°C). In Granby, Colorado, the average high-temperature is relatively the same as in July - a pleasant 73°F (22.8°C). Weather in August »

September, the first month of the autumn, in Granby, is still a pleasant month, with average temperature ranging between max 68°F (20°C) and min 33.1°F (0.6°C). In Granby, the average high-temperature in September is relatively the same as in August - a still pleasant 68°F (20°C). Weather in September »

October, the same as September, in Granby, Colorado, is a moderate autumn month, with temperature in the range of an average high of 55.9°F (13.3°C) and an average low of 24.1°F (-4.4°C). In October, the average high-temperature decreases, from a pleasant 68°F (20°C) in September, to a moderate 55.9°F (13.3°C). Weather in October »

November, the last month of the autumn, in Granby, is another cold month, with average temperature fluctuating between 39.9°F (4.4°C) and 14°F (-10°C). In November, the average high-temperature declines considerably, from a mild 55.9°F (13.3°C) in October, to a wintry 39.9°F (4.4°C). Weather in November »

December, the first month of the winter, in Granby, is still a freezing cold month, with temperature in the range of an average low of 5°F (-15°C) and an average high of 30°F (-1.1°C). In Granby, the average high-temperature decreases, from a cold 39.9°F (4.4°C) in November, to a freezing cold 30°F (-1.1°C). Weather in December »

What is the coldest month in Granby?

The coldest month is January, with an average high-temperature of 28°F (-2.2°C) and an average low-temperature of 1°F (-17.2°C).

How much does it rain in Granby?

During the entire year, Granby aggregates up to 14.2" (360.7mm) of precipitation.

What is the driest month in Granby?

February and October are months with the least rain in Granby, Colorado, when 0.8" (20.3mm) of rain is typically aggregated.

When are the longest days in Granby?

With an average of 15h of daylight, June has the longest days of the year.

What is the warmest month in Granby?

The warmest month in Granby, Colorado, is July, with an average high-temperature of 75°F (23.9°C) and an average low-temperature of 41°F (5°C).

What is the wettest month in Granby?

August is the month with the most rainfall, with 1.7" (43.2mm) of accumulated precipitation.

What is the month with the shortest days in Granby?

With an average of 9.4h of daylight, December has the shortest days of the year.
Average rainfall - Granby, CO

The wettest month (with the highest rainfall) is August (1.7").
Driest months (with the lowest rainfall) are February and October (0.8").

Average daylight - Granby, CO