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

September weather forecast and climate
Gunnison, CO

The first month of the autumn, September, is also an agreeable month in Gunnison, Colorado, with average temperature fluctuating between 33.4°F (0.8°C) and 70.9°F (21.6°C).

Temperature

In September, the average high-temperature slightly decreases, from a moderately hot 78.1°F (25.6°C) in August, to an agreeable 70.9°F (21.6°C). The average low-temperature, is 33.4°F (0.8°C).

Rainfall

Throughout September, 1.2" (30.7mm) of precipitation is accumulated. Throughout the year, 10.6" (268.5mm) of rain is accumulated.

Snowfall

In Gunnison snow does not fall in June through September.

Daylight

In September, the average length of the day is 12.4h.

What is the temperature in September in Gunnison?

The average high-temperature, in September, in Gunnison, is 70.9°F (21.6°C), while the average low-temperature is 33.4°F (0.8°C).

How much does it rain in Gunnison in September?

Throughout September, in Gunnison, 1.2" (30.7mm) of precipitation is accumulated.

Does it snow in Gunnison in September?

In Gunnison, in September, it doesn't snow. In October, it regularly snows.

When it does not snow in Gunnison?

In Gunnison, Colorado, snow does not fall in June through September.

How many hours of daylight does Gunnison have in September?

The average length of the day in September is 12.4h.
Average temperature in September - Gunnison, CO
  • Average high temperature in September: 70.8°F

The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (26.6°F).

  • Average low temperature in September: 33.4°F

The month with the highest average low temperature is July (43.8°F).
The coldest month (with the lowest average low temperature) is January (-6.2°F).

Average rainfall in September - Gunnison, CO
  • Average rainfall in September: 1.2"

The wettest month (with the highest rainfall) is August (1.6").
The driest month (with the lowest rainfall) is March (0.5").

Average snowfall in September - Gunnison, CO
  • Average snowfall in September: 0"

The month with the highest snowfall is December (10.4").
Months with the lowest snowfall are June, July, August and September (0").

Average daylight in September - Gunnison, CO
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.8h).
The month with shortest days is December (Average daylight: 9.5h).