Average Weather in Anderson Indiana, United States
In Anderson, the summers are long, warm, humid, and wet; the winters are freezing and windy; and it is partly cloudy year round. Over the course of the year, the temperature typically varies from 21°F to 84°F and is rarely below 3°F or above 91°F.
The warm season lasts for 4.1 months, from May 20 to September 23, with an average daily high temperature above 74°F. The hottest day of the year is July 19, with an average high of 84°F and low of 66°F.
The cold season lasts for 3.0 months, from December 2 to March 2, with an average daily high temperature below 44°F. The coldest day of the year is January 29, with an average low of 21°F and high of 34°F.
Average High and Low Temperature
The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.
Average Hourly Temperature
In Anderson, 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 Anderson begins around June 12 and lasts for 4.6 months, ending around October 31. On August 23, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 69% of the time, and overcast or mostly cloudy 31% of the time.
The cloudier part of the year begins around October 31 and lasts for 7.4 months, ending around June 12. On January 2, the cloudiest day of the year, the sky is overcast or mostly cloudy 61% of the time, and clear, mostly clear, or partly cloudy 39% of the time.
Cloud Cover Categories
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Anderson varies throughout the year.
The wetter season lasts 5.0 months, from March 26 to August 27, with a greater than 30% chance of a given day being a wet day. The chance of a wet day peaks at 41% on June 8.
The drier season lasts 7.0 months, from August 27 to March 26. The smallest chance of a wet day is 20% on February 8.
Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 41% on June 8.
Daily Chance of Precipitation
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. Anderson experiences significant seasonal variation in monthly rainfall.
Rain falls throughout the year in Anderson. The most rain falls during the 31 days centered around June 11, with an average total accumulation of 4.1 inches.
The least rain falls around February 4, with an average total accumulation of 1.4 inches.
Average Monthly Rainfall
We report snowfall in liquid-equivalent terms. The actual depth of new snowfall is typically between 5 and 10 times the liquid-equivalent amount, assuming the ground is frozen. Colder, drier snow tends to be on the higher end of that range and warmer, wetter snow on the lower end.
As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day of the year. Anderson experiences some seasonal variation in monthly liquid-equivalent snowfall.
The snowy period of the year lasts for 4.1 months, from November 25 to March 30, with a sliding 31-day liquid-equivalent snowfall of at least 0.1 inches. The most snow falls during the 31 days centered around February 4, with an average total liquid-equivalent accumulation of 0.4 inches.
The snowless period of the year lasts for 7.9 months, from March 30 to November 25. The least snow falls around July 18, with an average total liquid-equivalent accumulation of 0.0 inches.
Average Liquid-Equivalent Monthly Snowfall
The length of the day in Anderson varies significantly over the course of the year. In 2017, the shortest day is December 21, with 9 hours, 19 minutes of daylight; the longest day is June 21, with 15 hours, 2 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 6:12 AM on June 14, and the latest sunrise is 2 hours, 3 minutes later at 8:15 AM on November 4. The earliest sunset is at 5:16 PM on December 6, and the latest sunset is 3 hours, 59 minutes later at 9:16 PM on June 27.
Daylight saving time (DST) is observed in Anderson during 2017, starting in the spring on March 12, lasting 7.8 months, and ending in the fall on November 5.
Sunrise & Sunset with Twilight and Daylight Saving Time
Anderson experiences extreme seasonal variation in the perceived humidity.
The muggier period of the year lasts for 3.7 months, from May 29 to September 19, during which time the comfort level is muggy, oppressive, or miserable at least 13% of the time. The muggiest day of the year is July 23, with muggy conditions 52% of the time.
The least muggy day of the year is December 10, when muggy conditions are essentially unheard of.
Humidity Comfort Levels
The average hourly wind speed in Anderson experiences significant seasonal variation over the course of the year.
The windier part of the year lasts for 7.5 months, from October 9 to May 24, with average wind speeds of more than 9.7 miles per hour. The windiest day of the year is January 15, with an average hourly wind speed of 12.5 miles per hour.
The calmer time of year lasts for 4.5 months, from May 24 to October 9. The calmest day of the year is July 31, with an average hourly wind speed of 7.0 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in Anderson varies throughout the year.
The wind is most often from the south for 2.7 months, from April 4 to June 26 and for 3.5 months, from August 16 to November 30, with a peak percentage of 38% on November 14. The wind is most often from the west for 1.7 months, from June 26 to August 16 and for 4.1 months, from November 30 to April 4, with a peak percentage of 36% on July 20.
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 4.0 months, from April 30 to August 29, with an average daily incident shortwave energy per square meter above 5.8 kWh. The brightest day of the year is July 2, with an average of 6.9 kWh.
The darker period of the year lasts for 3.2 months, from November 5 to February 10, with an average daily incident shortwave energy per square meter below 2.8 kWh. The darkest day of the year is December 18, with an average of 1.8 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Anderson are 40.105 deg latitude, -85.680 deg longitude, and 879 ft elevation.
The topography within 2 miles of Anderson is essentially flat, with a maximum elevation change of 82 feet and an average elevation above sea level of 869 feet. Within 10 miles is essentially flat (266 feet). Within 50 miles contains only modest variations in elevation (922 feet).
The area within 2 miles of Anderson is covered by artificial surfaces (91%), within 10 miles by cropland (89%), and within 50 miles by cropland (87%).
This report illustrates the typical weather in Anderson, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.
Temperature and Dew Point
There are 4 weather stations near enough to contribute to our estimation of the temperature and dew point in Anderson.
For each station, the records are corrected for the elevation difference between that station and Anderson according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.
The estimated value at Anderson is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Anderson and a given station.
The stations contributing to this reconstruction are: Delaware County Regional Airport (47%, 28 kilometers, northeast); Indianapolis Executive Airport (21%, 49 kilometers, west); Kokomo Municipal Airport (17%, 57 kilometers, northwest); and Shelbyville Municipal Airport (15%, 60 kilometers, south).
Time zones for aiports and weather stations are provided by AskGeo.com .