Average Weather in Sylvania Alabama, United States
In Sylvania, the summers are warm and muggy; the winters are short, very cold, and wet; and it is partly cloudy year round. Over the course of the year, the temperature typically varies from 31°F to 86°F and is rarely below 17°F or above 93°F.
Based on the tourism score, the best times of year to visit Sylvania for warm-weather activities are from mid May to early July and from late July to late September.
The hot season lasts for 3.8 months, from May 26 to September 20, with an average daily high temperature above 79°F. The hottest day of the year is July 23, with an average high of 86°F and low of 67°F.
The cold season lasts for 2.9 months, from November 28 to February 26, with an average daily high temperature below 56°F. The coldest day of the year is January 26, with an average low of 31°F and high of 49°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
Stolac, Bosnia & Herzegovina (5,247 miles away); Fotolívos, Greece (5,582 miles); and Kutaisi, Georgia (6,217 miles) are the far-away foreign places with temperatures most similar to Sylvania (view comparison).
In Sylvania, 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 Sylvania begins around June 7 and lasts for 5.4 months, ending around November 20. On September 20, 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 November 20 and lasts for 6.6 months, ending around June 7. On January 5, the cloudiest day of the year, the sky is overcast or mostly cloudy 56% of the time, and clear, mostly clear, or partly cloudy 44% 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 Sylvania varies throughout the year.
The wetter season lasts 7.6 months, from January 4 to August 22, with a greater than 31% chance of a given day being a wet day. The chance of a wet day peaks at 42% on July 9.
The drier season lasts 4.4 months, from August 22 to January 4. The smallest chance of a wet day is 21% on October 15.
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 42% on July 9.
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. Sylvania experiences significant seasonal variation in monthly rainfall.
Rain falls throughout the year in Sylvania. The most rain falls during the 31 days centered around December 2, with an average total accumulation of 4.8 inches.
The least rain falls around August 22, with an average total accumulation of 2.8 inches.
Average Monthly Rainfall
The sliding 31-day liquid-equivalent quantity of snowfall in Sylvania does not vary significantly over the course of the year, staying within 0.1 inches of 0.1 inches throughout.
Average Liquid-Equivalent Monthly Snowfall
The length of the day in Sylvania varies significantly over the course of the year. In 2018, the shortest day is December 21, with 9 hours, 50 minutes of daylight; the longest day is June 21, with 14 hours, 28 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 5:29 AM on June 12, and the latest sunrise is 1 hour, 36 minutes later at 7:05 AM on November 3. The earliest sunset is at 4:32 PM on December 5, and the latest sunset is 3 hours, 28 minutes later at 8:00 PM on June 29.
Daylight saving time (DST) is observed in Sylvania during 2018, starting in the spring on March 11, lasting 7.8 months, and ending in the fall on November 4.
Sunrise & Sunset with Twilight and Daylight Saving Time
Sylvania experiences extreme seasonal variation in the perceived humidity.
The muggier period of the year lasts for 4.0 months, from May 24 to September 26, during which time the comfort level is muggy, oppressive, or miserable at least 21% of the time. The muggiest day of the year is July 23, with muggy conditions 84% of the time.
The least muggy day of the year is February 25, when muggy conditions are essentially unheard of.
Humidity Comfort Levels
The average hourly wind speed in Sylvania experiences mild seasonal variation over the course of the year.
The windier part of the year lasts for 6.6 months, from October 25 to May 12, with average wind speeds of more than 4.6 miles per hour. The windiest day of the year is February 26, with an average hourly wind speed of 5.8 miles per hour.
The calmer time of year lasts for 5.4 months, from May 12 to October 25. The calmest day of the year is August 1, with an average hourly wind speed of 3.4 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in Sylvania varies throughout the year.
The wind is most often from the south for 3.2 months, from March 13 to June 18 and for 1.4 months, from November 11 to December 24, with a peak percentage of 40% on May 4. The wind is most often from the west for 1.6 months, from June 18 to August 7, with a peak percentage of 37% on July 14. The wind is most often from the north for 2.0 weeks, from August 7 to August 21; for 1.3 months, from October 3 to November 11; and for 2.6 months, from December 24 to March 13, with a peak percentage of 32% on October 13.
Best Time of Year to Visit
To characterize how pleasant the weather is in Sylvania 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 Sylvania for general outdoor tourist activities are from mid May to early July and from late July to late September, with a peak score in the first 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 Sylvania for hot-weather activities is from late June to early September, with a peak score in the last week of July.
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.
The growing season in Sylvania typically lasts for 6.6 months (201 days), from around April 11 to around October 29, rarely starting before March 23 or after April 28, and rarely ending before October 10 or after November 16.
Time Spent in Various Temperature Bands and the Growing Season
Based on growing degree days alone, the first spring blooms in Sylvania should appear around March 1, only rarely appearing before February 12 or after March 19.
Growing Degree Days
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 4.7 months, from April 12 to September 3, with an average daily incident shortwave energy per square meter above 5.8 kWh. The brightest day of the year is June 23, with an average of 6.6 kWh.
The darker period of the year lasts for 2.8 months, from November 13 to February 6, with an average daily incident shortwave energy per square meter below 3.2 kWh. The darkest day of the year is December 25, with an average of 2.4 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Sylvania are 34.562 deg latitude, -85.812 deg longitude, and 1,332 ft elevation.
The topography within 2 miles of Sylvania contains only modest variations in elevation, with a maximum elevation change of 207 feet and an average elevation above sea level of 1,342 feet. Within 10 miles contains only modest variations in elevation (1,211 feet). Within 50 miles also contains very significant variations in elevation (1,867 feet).
The area within 2 miles of Sylvania is covered by cropland (88%) and trees (11%), within 10 miles by cropland (75%) and trees (21%), and within 50 miles by trees (58%) and cropland (33%).
This report illustrates the typical weather in Sylvania, 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 Sylvania.
For each station, the records are corrected for the elevation difference between that station and Sylvania 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 Sylvania is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Sylvania and a given station.
The stations contributing to this reconstruction are: Isbell Field (56%, 13 kilometers, southeast); Scottsboro Municipal Airport Word Field (27%, 23 kilometers, northwest); Albertville, Albertville Municipal Airport (11%, 55 kilometers, southwest); and Lovell Field (7%, 76 kilometers, northeast).
Time zones for aiports and weather stations are provided by AskGeo.com .