Climate and Average Weather Year Round at Aurora State Airport United States

At Aurora State Airport, the summers are short, warm, dry, and mostly clear and the winters are very cold, wet, and overcast. Over the course of the year, the temperature typically varies from 36°F to 85°F and is rarely below 25°F or above 96°F.

Based on the tourism score, the best time of year to visit Aurora State Airport for warm-weather activities is from early July to late August.

The warm season lasts for 2.8 months, from June 24 to September 16, with an average daily high temperature above 77°F. The hottest month of the year at Aurora State Airport is August, with an average high of 83°F and low of 55°F.

The cool season lasts for 3.4 months, from November 11 to February 23, with an average daily high temperature below 54°F. The coldest month of the year at Aurora State Airport is December, with an average low of 36°F and high of 47°F.

At Aurora State Airport, the average percentage of the sky covered by clouds experiences extreme seasonal variation over the course of the year.

The clearer part of the year at Aurora State Airport begins around June 10 and lasts for 3.9 months, ending around October 6.

The clearest month of the year at Aurora State Airport is August, during which on average the sky is clear, mostly clear, or partly cloudy 77% of the time.

The cloudier part of the year begins around October 6 and lasts for 8.1 months, ending around June 10.

The cloudiest month of the year at Aurora State Airport is December, during which on average the sky is overcast or mostly cloudy 75% 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 at Aurora State Airport varies very significantly throughout the year.

The wetter season lasts 6.9 months, from October 12 to May 9, with a greater than 31% chance of a given day being a wet day. The month with the most wet days at Aurora State Airport is November, with an average of 16.8 days with at least 0.04 inches of precipitation.

The drier season lasts 5.1 months, from May 9 to October 12. The month with the fewest wet days at Aurora State Airport is August, with an average of 2.2 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 at Aurora State Airport is November, with an average of 16.5 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 57% on November 17.

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. Aurora State Airport experiences extreme seasonal variation in monthly rainfall.

Rain falls throughout the year at Aurora State Airport. The month with the most rain at Aurora State Airport is November, with an average rainfall of 8.7 inches.

The month with the least rain at Aurora State Airport is July, with an average rainfall of 0.5 inches.

Snowfall

As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day of the year. Aurora State Airport experiences some seasonal variation in monthly snowfall.

The snowy period of the year lasts for 2.1 months, from December 5 to February 9, with a sliding 31-day snowfall of at least 1.0 inches. The month with the most snow at Aurora State Airport is December, with an average snowfall of 1.4 inches.

The snowless period of the year lasts for 9.9 months, from February 9 to December 5. The least snow falls around July 18, with an average total accumulation of 0.0 inches.

The length of the day at Aurora State Airport varies significantly over the course of the year. In 2024, the shortest day is December 21, with 8 hours, 44 minutes of daylight; the longest day is June 20, with 15 hours, 39 minutes of daylight.

The earliest sunrise is at 5:22 AM on June 15, and the latest sunrise is 2 hours, 30 minutes later at 7:52 AM on November 2. The earliest sunset is at 4:28 PM on December 9, and the latest sunset is 4 hours, 35 minutes later at 9:02 PM on June 25.

Daylight saving time (DST) is observed at Aurora State Airport during 2024, starting in the spring on March 10, lasting 7.8 months, and ending in the fall on November 3.

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 at Aurora State Airport, 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, remaining a virtually constant 0% 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 at Aurora State Airport experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 5.0 months, from October 27 to March 29, with average wind speeds of more than 5.1 miles per hour. The windiest month of the year at Aurora State Airport is December, with an average hourly wind speed of 6.0 miles per hour.

The calmer time of year lasts for 7.0 months, from March 29 to October 27. The calmest month of the year at Aurora State Airport is August, with an average hourly wind speed of 4.1 miles per hour.

The predominant average hourly wind direction at Aurora State Airport varies throughout the year.

The wind is most often from the west for 2.8 months, from April 13 to July 8 and for 1.6 months, from July 28 to September 15, with a peak percentage of 46% on May 29. The wind is most often from the north for 2.9 weeks, from July 8 to July 28 and for 1.7 weeks, from September 15 to September 27, with a peak percentage of 46% on July 20. The wind is most often from the south for 6.5 months, from September 27 to April 13, with a peak percentage of 45% on January 1.

Aurora State Airport is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.

The average water temperature experiences some seasonal variation over the course of the year.

The time of year with warmer water lasts for 3.3 months, from June 15 to September 25, with an average temperature above 57°F. The month of the year at Aurora State Airport with the warmest water is August, with an average temperature of 58°F.

The time of year with cooler water lasts for 4.3 months, from December 8 to April 17, with an average temperature below 51°F. The month of the year at Aurora State Airport with the coolest water is February, with an average temperature of 49°F.

To characterize how pleasant the weather is at Aurora State Airport 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 time of year to visit Aurora State Airport for general outdoor tourist activities is from early July to late August, with a peak score in the last week of July.

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 Aurora State Airport for hot-weather activities is from mid July to mid August, with a peak score in the first week of August.

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 at Aurora State Airport typically lasts for 7.4 months (226 days), from around March 27 to around November 8, rarely starting before February 29 or after April 20, and rarely ending before October 17 or after December 4.

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 at Aurora State Airport should appear around March 30, only rarely appearing before March 12 or after April 18.

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 2.8 months, from May 30 to August 23, with an average daily incident shortwave energy per square meter above 6.1 kWh. The brightest month of the year at Aurora State Airport is July, with an average of 7.3 kWh.

The darker period of the year lasts for 3.9 months, from October 25 to February 22, with an average daily incident shortwave energy per square meter below 2.3 kWh. The darkest month of the year at Aurora State Airport is December, with an average of 1.1 kWh.

For the purposes of this report, the geographical coordinates of Aurora State Airport are 45.254 deg latitude, -122.764 deg longitude, and 197 ft elevation.

The topography within 2 miles of Aurora State Airport contains only modest variations in elevation, with a maximum elevation change of 131 feet and an average elevation above sea level of 152 feet. Within 10 miles contains only modest variations in elevation (1,227 feet). Within 50 miles contains very significant variations in elevation (5,735 feet).

The area within 2 miles of Aurora State Airport is covered by cropland (70%) and artificial surfaces (30%), within 10 miles by cropland (63%) and artificial surfaces (27%), and within 50 miles by trees (43%) and cropland (26%).