October Weather in Greeley, United States

Last updated: June 24, 2025

In October, the average temperature in Greeley, United States hovers around 10°C (49°F). Be prepared for a wide range of temperatures, with lows dipping to -21°C (-5°F) and highs soaring up to 29°C (85°F). During this month, expect about 24 mm (0.9 in) of precipitation spread over 5 days, coupled with an average humidity of 73%.

October Temperature in Greeley

In October in Greeley, the average temperature is 10°C (49°F). The maximum can reach 29°C (85°F), and the minimum can be as low as -21°C (-5°F). Be prepared for a wide range of temperatures when traveling to Greeley during this month.

October Weather in Greeley: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Greeley, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Greeley, October typically has an average temperature of 10°C (49°F), with highs reaching up to 29°C (85°F) and lows dropping to around -21°C (-5°F).

Data source: Temperature data for Greeley generated using information from the Copernicus Climate Change Service.

October Precipitation in Greeley

In Greeley in October, the precipitation amount is 24 mm (0.9 in) over the course of 5 days.

October Precipitation Trends in Greeley

The chart displays monthly precipitation patterns in Greeley, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Greeley, October typically receives around 24 mm (0.9 inches) of precipitation spread over approximately 5 days.

Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

October Humidity in Greeley

In Greeley in October, humidity is 73%. With an average temperature of 10°C (49°F), this humidity feels like a chilly, damp embrace that can make outdoor activities less enjoyable, creating a persistent, uncomfortable stickiness that clings to your clothes and chills you to the bone, urging travelers to seek warmth indoors or cozy cafes.

October Average Humidity in Greeley

This chart illustrates the average monthly humidity levels in Greeley, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in Greeley is approximately 73%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Greeley

In Greeley in October, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Greeley, you can refer to this Hourly UV Index in Greeley.

Maximum UV Index Levels in Greeley for October

The chart shows the monthly maximum UV Index (UVI) for Greeley in October, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In October, the maximum UV index in Greeley typically reaches 6, which falls under the high exposure category.

Data source: Greeley October UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How October Weather in Greeley Compares to Other Months

Weather in Greeley varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Greeley, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Greeley, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-1°C (31°F)	11 mm (0.4 inches)	72%	moderate
February Weather	-1°C (30°F)	13 mm (0.5 inches)	76%	moderate
March Weather	5°C (42°F)	44 mm (1.7 inches)	61%	high
April Weather	9°C (49°F)	35 mm (1.4 inches)	60%	very high
May Weather	14°C (58°F)	95 mm (3.8 inches)	74%	very high
June Weather	21°C (71°F)	34 mm (1.3 inches)	82%	extreme
July Weather	25°C (77°F)	30 mm (1.2 inches)	82%	extreme
August Weather	23°C (74°F)	32 mm (1.3 inches)	84%	very high
September Weather	20°C (68°F)	15 mm (0.6 inches)	75%	very high
October Weather	10°C (49°F)	24 mm (0.9 inches)	73%	high
November Weather	5°C (41°F)	15 mm (0.6 inches)	74%	moderate
December Weather	0°C (33°F)	10 mm (0.4 inches)	77%	moderate