Climate and Average Weather Year Round in Cornville Arizona, United States

In Cornville, the summers are hot, the winters are cold, and it is mostly clear year round. Over the course of the year, the temperature typically varies from 37°F to 97°F and is rarely below 29°F or above 104°F.

Based on the tourism score, the best times of year to visit Cornville for warm-weather activities are from mid May to late June and from late August to mid October.

The hot season lasts for 3.5 months, from May 31 to September 15, with an average daily high temperature above 89°F. The hottest month of the year in Cornville is July, with an average high of 96°F and low of 72°F.

The cool season lasts for 3.3 months, from November 20 to February 28, with an average daily high temperature below 65°F. The coldest month of the year in Cornville is December, with an average low of 38°F and high of 58°F.

In Cornville, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.

The clearer part of the year in Cornville begins around August 22 and lasts for 2.5 months, ending around November 5.

The clearest month of the year in Cornville is September, during which on average the sky is clear, mostly clear, or partly cloudy 83% of the time.

The cloudier part of the year begins around November 5 and lasts for 9.5 months, ending around August 22.

The cloudiest month of the year in Cornville is February, during which on average the sky is overcast or mostly cloudy 39% of the time.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Cornville varies significantly throughout the year.

The wetter season lasts 2.1 months, from July 6 to September 10, with a greater than 21% chance of a given day being a wet day. The month with the most wet days in Cornville is August, with an average of 10.9 days with at least 0.04 inches of precipitation.

The drier season lasts 9.9 months, from September 10 to July 6. The month with the fewest wet days in Cornville is June, with an average of 1.8 days with at least 0.04 inches of precipitation.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. The month with the most days of rain alone in Cornville is August, with an average of 10.9 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 38% on August 3.

Rainfall

To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Cornville experiences some seasonal variation in monthly rainfall.

The rainy period of the year lasts for 10 months, from June 24 to April 26, with a sliding 31-day rainfall of at least 0.5 inches. The month with the most rain in Cornville is August, with an average rainfall of 2.0 inches.

The rainless period of the year lasts for 1.9 months, from April 26 to June 24. The month with the least rain in Cornville is June, with an average rainfall of 0.3 inches.

The length of the day in Cornville varies significantly over the course of the year. In 2024, the shortest day is December 21, with 9 hours, 50 minutes of daylight; the longest day is June 20, with 14 hours, 29 minutes of daylight.

The earliest sunrise is at 5:13 AM on June 11, and the latest sunrise is 2 hours, 22 minutes later at 7:35 AM on January 7. The earliest sunset is at 5:16 PM on December 4, and the latest sunset is 2 hours, 29 minutes later at 7:44 PM on June 28.

Daylight saving time (DST) is not observed in Cornville during 2024.

The figure below presents a compact representation of key lunar data for 2024. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases.

We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.

The perceived humidity level in Cornville, as measured by the percentage of time in which the humidity comfort level is muggy, oppressive, or miserable, does not vary significantly over the course of the year, staying within 1% of 1% throughout.

This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.

The average hourly wind speed in Cornville experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 8.8 months, from October 8 to July 3, with average wind speeds of more than 6.5 miles per hour. The windiest month of the year in Cornville is April, with an average hourly wind speed of 7.8 miles per hour.

The calmer time of year lasts for 3.2 months, from July 3 to October 8. The calmest month of the year in Cornville is August, with an average hourly wind speed of 5.3 miles per hour.

The predominant average hourly wind direction in Cornville varies throughout the year.

The wind is most often from the south for 8.2 months, from February 13 to October 18, with a peak percentage of 49% on June 8. The wind is most often from the east for 3.8 months, from October 18 to February 13, with a peak percentage of 39% on January 1.

To characterize how pleasant the weather is in Cornville throughout the year, we compute two travel scores.

The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best times of year to visit Cornville for general outdoor tourist activities are from mid May to late June and from late August to mid October, with a peak score in the third week of September.

The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best time of year to visit Cornville for hot-weather activities is from mid June to early September, with a peak score in the first week of July.

Methodology

For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed.

Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies.

Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more.

Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter.

Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter.

Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

The growing season in Cornville typically lasts for 9.2 months (281 days), from around February 21 to around November 28, rarely starting before January 11 or after March 25, and rarely ending before November 8 or after December 21.

Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F.

Based on growing degree days alone, the first spring blooms in Cornville should appear around February 5, only rarely appearing before January 24 or after February 19.

This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.

The average daily incident shortwave solar energy experiences extreme seasonal variation over the course of the year.

The brighter period of the year lasts for 2.6 months, from April 23 to July 10, with an average daily incident shortwave energy per square meter above 7.6 kWh. The brightest month of the year in Cornville is June, with an average of 8.5 kWh.

The darker period of the year lasts for 3.2 months, from November 3 to February 10, with an average daily incident shortwave energy per square meter below 4.2 kWh. The darkest month of the year in Cornville is December, with an average of 3.1 kWh.

For the purposes of this report, the geographical coordinates of Cornville are 34.718 deg latitude, -111.922 deg longitude, and 3,297 ft elevation.

The topography within 2 miles of Cornville contains only modest variations in elevation, with a maximum elevation change of 436 feet and an average elevation above sea level of 3,415 feet. Within 10 miles contains only modest variations in elevation (3,629 feet). Within 50 miles also contains extreme variations in elevation (10,778 feet).

The area within 2 miles of Cornville is covered by shrubs (74%), cropland (14%), and grassland (12%), within 10 miles by shrubs (93%), and within 50 miles by shrubs (59%) and trees (37%).