Round Valley, AZ Climate


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Round Valley, AZ is known for its moderate climate and pleasant weather. The temperatures in the valley range from an average low of 35°F degrees in the winter to an average high of 85°F degrees during the summer months. Precipitation is relatively low, averaging 8-12 inches per year. During the spring and fall, wind speeds can be quite strong with gusts up to 40 mph. Sunlight exposure is abundant throughout the year with approximately 300 sunny days annually. Residents enjoy outdoor activities throughout the entire year due to the mild climate and comfortable weather conditions.

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Round Valley is 7.9 (10=best), which means it is one of the most pleasant places in Arizona.

8.3 Summer - 6.8 Winter
May, September and October are the most pleasant months in Round Valley, while January and December are the least comfortable months.

  ClimateRound Valley, ArizonaUnited States
  21.6 in.38.1 in.
  14.6 in.27.8 in.
  64.6 days106.2 days
  283 days205 days
  90.4°85.8°
  25.6°21.7°
  7.97
  6.24.3
  4622 ft.2443 ft.
Climate
YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

July is the hottest month for Round Valley with an average high temperature of 90.4°, which ranks it as cooler than most places in Arizona. In Round Valley, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Round Valley are May, October and September.
In Round Valley, there are 46.2 days annually when the high temperature is over 90°, which is cooler than most places in Arizona.
December has the coldest nighttime temperatures for Round Valley with an average of 25.5°. This is colder than most places in Arizona.
In Round Valley, there are 119.2 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Arizona.
In Round Valley, there are 0.2 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Arizona.
Humidity is low in Round Valley, and some people might find the dryness to be uncomfortable. Days with noticeable humidity are rare throughout the year. A very dry climate can lead to cracked, itchy skin and dry eyes.
August is the wettest month in Round Valley with 3.1 inches of rain, and the driest month is June with 0.3 inches. The wettest season is Spring with 32% of yearly precipitation and 17% occurs in Summer, which is the driest season. The annual rainfall of 21.6 inches in Round Valley means that it is one of the wettest places in Arizona.
August is the rainiest month in Round Valley with 11.2 days of rain, and June is the driest month with only 1.9 rainy days. There are 64.6 rainy days annually in Round Valley, which is rainier than most places in Arizona. The rainiest season is Autumn when it rains 35% of the time and the driest is Summer with only a 19% chance of a rainy day.
An annual snowfall of 14.6 inches in Round Valley means that it is snowier than most places in Arizona. February is the snowiest month in Round Valley with 4.6 inches of snow, and 6 months of the year have significant snowfall.
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