Average Weather in Decima Italy
In Decima, the summers are warm and mostly clear and the winters are very cold and partly cloudy. Over the course of the year, the temperature typically varies from 31°F to 88°F and is rarely below 24°F or above 96°F.
Based on the beach/pool score, the best time of year to visit Decima for hot-weather activities is from late June to late August.
The hot season lasts for 3.2 months, from June 5 to September 13, with an average daily high temperature above 79°F. The hottest day of the year is July 30, with an average high of 88°F and low of 68°F.
The cold season lasts for 3.2 months, from November 20 to February 27, with an average daily high temperature below 51°F. The coldest day of the year is January 12, with an average low of 31°F and high of 42°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 Decima, 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 Decima begins around June 14 and lasts for 3.2 months, ending around September 21. On July 21, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 79% of the time, and overcast or mostly cloudy 21% of the time.
The cloudier part of the year begins around September 21 and lasts for 8.8 months, ending around June 14. On November 25, the cloudiest day of the year, the sky is overcast or mostly cloudy 54% of the time, and clear, mostly clear, or partly cloudy 46% 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 Decima varies throughout the year.
The wetter season lasts 8.0 months, from March 27 to November 28, with a greater than 23% chance of a given day being a wet day. The chance of a wet day peaks at 29% on May 6.
The drier season lasts 4.0 months, from November 28 to March 27. The smallest chance of a wet day is 17% on January 30.
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 29% on May 6.
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. Decima experiences some seasonal variation in monthly rainfall.
Rain falls throughout the year in Decima. The most rain falls during the 31 days centered around October 22, with an average total accumulation of 2.8 inches.
The least rain falls around January 13, with an average total accumulation of 1.1 inches.
Average Monthly Rainfall
The sliding 31-day liquid-equivalent quantity of snowfall in Decima 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 Decima varies significantly over the course of the year. In 2018, the shortest day is December 21, with 8 hours, 48 minutes of daylight; the longest day is June 21, with 15 hours, 35 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 5:28 AM on June 16, and the latest sunrise is 2 hours, 23 minutes later at 7:52 AM on January 2. The earliest sunset is at 4:34 PM on December 10, and the latest sunset is 4 hours, 30 minutes later at 9:04 PM on June 26.
Daylight saving time (DST) is observed in Decima during 2018, starting in the spring on March 25, lasting 7.1 months, and ending in the fall on October 28.
Sunrise & Sunset with Twilight and Daylight Saving Time
Decima experiences significant seasonal variation in the perceived humidity.
The muggier period of the year lasts for 3.2 months, from June 11 to September 17, during which time the comfort level is muggy, oppressive, or miserable at least 9% of the time. The muggiest day of the year is August 6, with muggy conditions 37% of the time.
The least muggy day of the year is December 6, when muggy conditions are essentially unheard of.
Humidity Comfort Levels
The average hourly wind speed in Decima experiences mild seasonal variation over the course of the year.
The windier part of the year lasts for 3.9 months, from January 23 to May 19, with average wind speeds of more than 6.2 miles per hour. The windiest day of the year is March 31, with an average hourly wind speed of 7.0 miles per hour.
The calmer time of year lasts for 8.1 months, from May 19 to January 23. The calmest day of the year is August 10, with an average hourly wind speed of 5.5 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in Decima varies throughout the year.
The wind is most often from the east for 4.1 months, from February 3 to June 5 and for 5.2 months, from June 13 to November 19, with a peak percentage of 42% on August 24. The wind is most often from the west for 1.1 weeks, from June 5 to June 13 and for 2.4 months, from November 19 to February 3, with a peak percentage of 34% on June 11.
Decima 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 significant seasonal variation over the course of the year.
The time of year with warmer water lasts for 3.0 months, from June 17 to September 18, with an average temperature above 72°F. The day of the year with the warmest water is August 4, with an average temperature of 78°F.
The time of year with cooler water lasts for 3.7 months, from December 18 to April 8, with an average temperature below 54°F. The day of the year with the coolest water is February 16, with an average temperature of 48°F.
Average Water Temperature
Best Time of Year to Visit
To characterize how pleasant the weather is in Decima 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 Decima for general outdoor tourist activities are from mid May to early July and from late August to early October, with a peak score in the second 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 Decima for hot-weather activities is from late June to late August, with a peak score in the third 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 Decima typically lasts for 8.7 months (268 days), from around March 4 to around November 27, rarely starting before February 8 or after March 27, and rarely ending before November 6 or after December 19.
Time Spent in Various Temperature Bands and the Growing Season
Based on growing degree days alone, the first spring blooms in Decima should appear around March 28, only rarely appearing before March 16 or after April 11.
Growing Degree Days
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 3.3 months, from May 9 to August 18, with an average daily incident shortwave energy per square meter above 6.1 kWh. The brightest day of the year is July 8, with an average of 7.2 kWh.
The darker period of the year lasts for 3.5 months, from October 29 to February 13, with an average daily incident shortwave energy per square meter below 2.6 kWh. The darkest day of the year is December 16, with an average of 1.4 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Decima are 44.710 deg latitude, 11.230 deg longitude, and 46 ft elevation.
The topography within 2 miles of Decima is essentially flat, with a maximum elevation change of 49 feet and an average elevation above sea level of 48 feet. Within 10 miles is essentially flat (112 feet). Within 50 miles contains only modest variations in elevation (7,093 feet).
The area within 2 miles of Decima is covered by cropland (94%), within 10 miles by cropland (94%), and within 50 miles by cropland (73%) and trees (18%).
This report illustrates the typical weather in Decima, 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 Decima.
For each station, the records are corrected for the elevation difference between that station and Decima 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 Decima is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Decima and a given station.
The stations contributing to this reconstruction are: Bologna Guglielmo Marconi Airport (75%, 20 kilometers, south); Parma Airport (11%, 75 kilometers, west); Verona Villafranca Airport (9%, 81 kilometers, north); and Venice Marco Polo Airport (4.9%, 125 kilometers, northeast).
Time zones for aiports and weather stations are provided by AskGeo.com .