August Weather in Greeley, United States

Last updated: June 24, 2025

In Greeley, United States, the average temperature in August is a pleasant 23°C (74°F). However, it can range from a cool 10°C (50°F) to a warm 37°C (99°F). During this month, the region experiences about 32 mm (1.3 in) of precipitation over approximately 6 days, accompanied by an average humidity of 84%. Enjoy the diverse weather as you explore!

August Temperature in Greeley

In August in Greeley, the average temperature is 23°C (74°F). Maximums can reach up to 37°C (99°F), and minimums can drop as low as 10°C (50°F). Be prepared for warm days and cooler nights while exploring the beautiful surroundings.

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

The chart illustrates August 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, August typically has an average temperature of 23°C (74°F), with highs reaching up to 37°C (99°F) and lows dropping to around 10°C (50°F).

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

August Precipitation in Greeley

In Greeley in August, the total precipitation amount is 32 mm (1.3 in) over the course of 6 days.

August Precipitation Trends in Greeley

The chart displays monthly precipitation patterns in Greeley, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Greeley, August typically receives around 32 mm (1.3 inches) of precipitation spread over approximately 6 days.

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

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Millimeters (mm) Inches (in)

August Humidity in Greeley

In Greeley in August, humidity is 84%. With an average temperature of 23°C (74°F), this humidity feels like a warm blanket wrapping around you, making outdoor activities feel sticky and heavy, while the air's thickness can be quite exhausting for long periods of travel.

August Average Humidity in Greeley

This chart illustrates the average monthly humidity levels in Greeley, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Greeley is approximately 84%, offering insight into how humid the weather typically is during this month.

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

August UV Index in Greeley

In Greeley in August, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Greeley.

Maximum UV Index Levels in Greeley for August

The chart shows the monthly maximum UV Index (UVI) for Greeley in August, 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 August, the maximum UV index in Greeley typically reaches 10, which falls under the very high exposure category.

Data source: Greeley August 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 August 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 August’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 August’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