Average Weather in Celina Tennessee, United States
In Celina, the summers are hot and muggy, the winters are very cold, and it is wet and partly cloudy year round. Over the course of the year, the temperature typically varies from 29°F to 88°F and is rarely below 13°F or above 94°F.
Based on the tourism score, the best times of year to visit Celina for warm-weather activities are from mid May to late June and from late July to early October.
The hot season lasts for 3.9 months, from May 25 to September 20, with an average daily high temperature above 80°F. The hottest day of the year is July 21, with an average high of 88°F and low of 68°F.
The cold season lasts for 3.0 months, from November 29 to February 27, with an average daily high temperature below 55°F. The coldest day of the year is January 29, with an average low of 29°F and high of 47°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 Celina, 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 Celina begins around June 14 and lasts for 5.0 months, ending around November 13. On September 21, 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 13 and lasts for 7.0 months, ending around June 14. On January 3, the cloudiest day of the year, the sky is overcast or mostly cloudy 58% of the time, and clear, mostly clear, or partly cloudy 42% of the time.
Cloud Cover Categories
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Celina varies throughout the year.
The wetter season lasts 4.9 months, from March 19 to August 16, with a greater than 34% chance of a given day being a wet day. The chance of a wet day peaks at 44% on June 30.
The drier season lasts 7.1 months, from August 16 to March 19. The smallest chance of a wet day is 24% 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 44% on June 30.
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. Celina experiences some seasonal variation in monthly rainfall.
Rain falls throughout the year in Celina. The most rain falls during the 31 days centered around May 3, with an average total accumulation of 4.6 inches.
The least rain falls around October 20, with an average total accumulation of 3.0 inches.
Average Monthly Rainfall
The sliding 31-day liquid-equivalent quantity of snowfall in Celina 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 Celina varies significantly over the course of the year. In 2018, the shortest day is December 21, with 9 hours, 40 minutes of daylight; the longest day is June 21, with 14 hours, 40 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 5:23 AM on June 13, and the latest sunrise is 1 hour, 44 minutes later at 7:07 AM on November 3. The earliest sunset is at 4:26 PM on December 6, and the latest sunset is 3 hours, 38 minutes later at 8:04 PM on June 28.
Daylight saving time (DST) is observed in Celina 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
Celina experiences extreme seasonal variation in the perceived humidity.
The muggier period of the year lasts for 4.3 months, from May 15 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 25, with muggy conditions 84% of the time.
The least muggy day of the year is February 6, when muggy conditions are essentially unheard of.
Humidity Comfort Levels
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed in Celina experiences significant seasonal variation over the course of the year.
The windier part of the year lasts for 6.3 months, from October 31 to May 10, with average wind speeds of more than 5.3 miles per hour. The windiest day of the year is February 25, with an average hourly wind speed of 6.9 miles per hour.
The calmer time of year lasts for 5.7 months, from May 10 to October 31. The calmest day of the year is July 30, with an average hourly wind speed of 3.8 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in Celina varies throughout the year.
The wind is most often from the west for 1.2 months, from July 3 to August 8, with a peak percentage of 36% on July 13. The wind is most often from the south for 11 months, from August 8 to July 3, with a peak percentage of 38% on January 1.
Best Time of Year to Visit
To characterize how pleasant the weather is in Celina 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 Celina for general outdoor tourist activities are from mid May to late June and from late July to early October, 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 Celina for hot-weather activities is from mid June to early September, with a peak score in the second week of August.
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 Celina typically lasts for 6.6 months (203 days), from around April 6 to around October 26, rarely starting before March 18 or after April 23, and rarely ending before October 7 or after November 13.
Time Spent in Various Temperature Bands and the Growing Season
Based on growing degree days alone, the first spring blooms in Celina should appear around February 28, only rarely appearing before February 9 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 4.5 months, from April 19 to September 2, with an average daily incident shortwave energy per square meter above 5.7 kWh. The brightest day of the year is June 20, with an average of 6.6 kWh.
The darker period of the year lasts for 3.0 months, from November 10 to February 8, with an average daily incident shortwave energy per square meter below 3.0 kWh. The darkest day of the year is December 25, with an average of 2.2 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Celina are 36.550 deg latitude, -85.505 deg longitude, and 686 ft elevation.
The topography within 2 miles of Celina contains only modest variations in elevation, with a maximum elevation change of 427 feet and an average elevation above sea level of 639 feet. Within 10 miles contains only modest variations in elevation (988 feet). Within 50 miles also contains very significant variations in elevation (1,614 feet).
The area within 2 miles of Celina is covered by trees (70%) and cropland (29%), within 10 miles by trees (82%) and cropland (12%), and within 50 miles by trees (56%) and cropland (41%).
This report illustrates the typical weather in Celina, 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 3 weather stations near enough to contribute to our estimation of the temperature and dew point in Celina.
For each station, the records are corrected for the elevation difference between that station and Celina 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 Celina is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Celina and a given station.
The stations contributing to this reconstruction are: Upper Cumberland Regional Airport (40%, 55 kilometers, south); Glasgow Municipal Airport (30%, 67 kilometers, northwest); and Wayne County Airport (30%, 67 kilometers, northeast).
Time zones for aiports and weather stations are provided by AskGeo.com .