Average Weather in Troy Alabama, United States
In Troy, the summers are long, hot, and muggy; the winters are short and cold; and it is wet and partly cloudy year round. Over the course of the year, the temperature typically varies from 38°F to 90°F and is rarely below 24°F or above 96°F.
The hot season lasts for 4.1 months, from May 19 to September 23, with an average daily high temperature above 84°F. The hottest day of the year is July 23, with an average high of 90°F and low of 71°F.
The cool season lasts for 2.9 months, from November 30 to February 24, with an average daily high temperature below 65°F. The coldest day of the year is January 29, with an average low of 38°F and high of 59°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 Troy, the average percentage of the sky covered by clouds experiences mild seasonal variation over the course of the year.
The clearer part of the year in Troy begins around August 27 and lasts for 3.2 months, ending around December 3. On October 10, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 67% of the time, and overcast or mostly cloudy 33% of the time.
The cloudier part of the year begins around December 3 and lasts for 8.8 months, ending around August 27. On July 12, the cloudiest day of the year, the sky is overcast or mostly cloudy 51% of the time, and clear, mostly clear, or partly cloudy 49% 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 Troy varies significantly throughout the year.
The wetter season lasts 2.9 months, from June 1 to August 30, with a greater than 35% chance of a given day being a wet day. The chance of a wet day peaks at 51% on July 17.
The drier season lasts 9.0 months, from August 30 to June 1. The smallest chance of a wet day is 18% on October 16.
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 51% on July 17.
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. Troy experiences significant seasonal variation in monthly rainfall.
Rain falls throughout the year in Troy. The most rain falls during the 31 days centered around March 9, with an average total accumulation of 5.3 inches.
The least rain falls around October 17, with an average total accumulation of 2.7 inches.
Average Monthly Rainfall
The length of the day in Troy varies significantly over the course of the year. In 2017, the shortest day is December 21, with 10 hours, 4 minutes of daylight; the longest day is June 21, with 14 hours, 14 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 5:37 AM on June 11, and the latest sunrise is 1 hour, 25 minutes later at 7:02 AM on November 4. The earliest sunset is at 4:39 PM on December 3, and the latest sunset is 3 hours, 14 minutes later at 7:53 PM on June 29.
Daylight saving time (DST) is observed in Troy 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
Troy experiences extreme seasonal variation in the perceived humidity.
The muggier period of the year lasts for 5.0 months, from May 10 to October 10, during which time the comfort level is muggy, oppressive, or miserable at least 24% of the time. The muggiest day of the year is July 24, with muggy conditions 96% of the time.
The least muggy day of the year is January 31, with muggy conditions 1% of the time.
Humidity Comfort Levels
Average Wind Speed
The predominant average hourly wind direction in Troy varies throughout the year.
The wind is most often from the south for 3.9 months, from February 25 to June 22, with a peak percentage of 37% on May 4. The wind is most often from the east for 3.0 months, from August 13 to November 14, with a peak percentage of 47% on September 9. The wind is most often from the north for 3.4 months, from November 14 to February 25, with a peak percentage of 32% on January 1.
The average daily incident shortwave solar energy experiences significant seasonal variation over the course of the year.
The brighter period of the year lasts for 3.9 months, from April 7 to August 3, with an average daily incident shortwave energy per square meter above 6.0 kWh. The brightest day of the year is May 19, with an average of 6.8 kWh.
The darker period of the year lasts for 2.6 months, from November 15 to February 3, with an average daily incident shortwave energy per square meter below 3.6 kWh. The darkest day of the year is December 23, with an average of 2.8 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Troy are 31.809 deg latitude, -85.970 deg longitude, and 463 ft elevation.
The topography within 2 miles of Troy contains only modest variations in elevation, with a maximum elevation change of 213 feet and an average elevation above sea level of 481 feet. Within 10 miles also contains only modest variations in elevation (322 feet). Within 50 miles contains only modest variations in elevation (607 feet).
The area within 2 miles of Troy is covered by artificial surfaces (43%), trees (33%), and cropland (22%), within 10 miles by trees (71%) and cropland (24%), and within 50 miles by trees (69%) and cropland (25%).
This report illustrates the typical weather in Troy, 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 Troy.
For each station, the records are corrected for the elevation difference between that station and Troy 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 Troy is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Troy and a given station.
The stations contributing to this reconstruction are: Troy Municipal Airport (90%, 7 kilometers, northwest); Fort Rucker, Lowe Army Heliport (4.4%, 55 kilometers, south); Andalusia, Andalusia-Opp Municipal Airport (3.1%, 69 kilometers, southwest); and Weedon Field (2.4%, 81 kilometers, east).
Time zones for aiports and weather stations are provided by AskGeo.com .