September Weather in Colby

Last updated: March 2, 2024

The weather in Colby, United States, during September is characterized by an average temperature of 21°C (70°F). Highs can soar to 36°C (96°F), while lows may dip to 6°C (43°F). Typically, the humidity level in Colby throughout September hovers around 82%.

6°C (43°F)

Minimum temperature

21°C (70°F)

Average temperature

36°C (96°F)

Maximum temperature

82%

Humidity

Precipitation and Sunshine hours

In September, Colby averages 56 mm (2.2 inches) of rainfall, typically over the course of 6 rainy days. The month enjoys an average of 12 hours 23 minutes of daylight, with the sun shining for approximately 9 hours 42 minutes each day. Additionally, there is a 73% probability of sunny days during this period.

56 mm (2.2 inches)

Precipitation

6 rainy days

Rainy days

9 hours 42 minutes

Sunshine hours

73%

Chance of sun

UV Index

In September, the UV Index in Colby reaches a maximum of 9, indicating a level of VeryHigh exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, during which unprotected skin may burn in as little as 15 minutes.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00
UVI	0	1	2	3	5	8	9	9	8	6	4	2	1
Exposure	Low			Moderate		VeryHigh				High	Moderate	Low
Time to burn	45 min			30 min		15 min				25 min	30 min	45 min