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

September weather forecast and climate
Holly, CO

September, the first month of the autumn, in Holly, is also a moderately hot month, with average temperature varying between 50°F (10°C) and 82.4°F (28°C).

Temperature

In Holly, the average high-temperature decreases, from a tropical 91.4°F (33°C) in August, to a moderately hot 82.4°F (28°C). In September, in Holly, the average low-temperature is 50°F (10°C).

Rainfall

Throughout September, 1.2" (30mm) of precipitation is accumulated. Throughout the year, in Holly, 15.5" (394mm) of rain is accumulated.

Daylight

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

What is the temperature in September in Holly?

The average high-temperature, in September, is 82.4°F (28°C), while the average low-temperature is 50°F (10°C).

How much does it rain in Holly in September?

During September, Holly regularly aggregates up to 1.2" (30mm) of precipitation.

What is the average length of the day in September in Holly?

In Holly, the average length of the day in September is 12.4h.
Average temperature in September - Holly, CO
  • Average high temperature in September: 82.4°F

The warmest month (with the highest average high temperature) is July (93.2°F).
The month with the lowest average high temperature is January (44.6°F).

  • Average low temperature in September: 50°F

The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (14°F).

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

Wettest months (with the highest rainfall) are May and July (2.4").
The driest month (with the lowest rainfall) is January (0.4").

Average daylight in September - Holly, 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: 9.6h).