Average Weather in Castel d'Aiano Italy
In Castel d'Aiano, the summers are short, warm, and mostly clear and the winters are very cold and partly cloudy. Over the course of the year, the temperature typically varies from 29°F to 79°F and is rarely below 21°F or above 86°F.
Based on the tourism score, the best time of year to visit Castel d'Aiano for warm-weather activities is from late June to early September.
The warm season lasts for 2.9 months, from June 12 to September 10, with an average daily high temperature above 71°F. The hottest day of the year is August 4, with an average high of 79°F and low of 61°F.
The cold season lasts for 3.6 months, from November 18 to March 6, with an average daily high temperature below 47°F. The coldest day of the year is January 12, with an average low of 29°F and high of 39°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
Coquitlam, Canada (5,402 miles away); Boone, North Carolina, United States (4,657 miles); and Rockport, Massachusetts, United States (3,918 miles) are the far-away foreign places with temperatures most similar to Castel d'Aiano (view comparison).
In Castel d'Aiano, 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 Castel d'Aiano begins around June 12 and lasts for 3.3 months, ending around September 21. On July 21, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 81% of the time, and overcast or mostly cloudy 19% of the time.
The cloudier part of the year begins around September 21 and lasts for 8.7 months, ending around June 12. On November 25, 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 Castel d'Aiano varies throughout the year.
The wetter season lasts 9.4 months, from September 9 to June 20, with a greater than 23% chance of a given day being a wet day. The chance of a wet day peaks at 31% on November 4.
The drier season lasts 2.6 months, from June 20 to September 9. The smallest chance of a wet day is 15% on August 4.
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 30% on November 3.
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. Castel d'Aiano experiences significant seasonal variation in monthly rainfall.
Rain falls throughout the year in Castel d'Aiano. The most rain falls during the 31 days centered around October 28, with an average total accumulation of 3.1 inches.
The least rain falls around January 14, with an average total accumulation of 1.1 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. Castel d'Aiano experiences some seasonal variation in monthly liquid-equivalent snowfall.
The snowy period of the year lasts for 4.0 months, from November 17 to March 18, with a sliding 31-day liquid-equivalent snowfall of at least 0.1 inches. The most snow falls during the 31 days centered around January 8, with an average total liquid-equivalent accumulation of 0.4 inches.
The snowless period of the year lasts for 8.0 months, from March 18 to November 17. The least snow falls around July 27, with an average total liquid-equivalent accumulation of 0.0 inches.
Average Liquid-Equivalent Monthly Snowfall
The length of the day in Castel d'Aiano varies significantly over the course of the year. In 2018, the shortest day is December 21, with 8 hours, 51 minutes of daylight; the longest day is June 21, with 15 hours, 31 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 5:31 AM on June 15, and the latest sunrise is 2 hours, 20 minutes later at 7:51 AM on January 2. The earliest sunset is at 4:36 PM on December 10, and the latest sunset is 4 hours, 27 minutes later at 9:04 PM on June 27.
Daylight saving time (DST) is observed in Castel d'Aiano 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
The perceived humidity level in Castel d'Aiano, as measured by the percentage of time in which the humidity comfort level is muggy, oppressive, or miserable, does not vary significantly over the course of the year, staying within 3% of 3% throughout.
Humidity Comfort Levels
The average hourly wind speed in Castel d'Aiano experiences mild seasonal variation over the course of the year.
The windier part of the year lasts for 7.0 months, from October 16 to May 17, with average wind speeds of more than 6.1 miles per hour. The windiest day of the year is March 17, with an average hourly wind speed of 7.0 miles per hour.
The calmer time of year lasts for 5.0 months, from May 17 to October 16. The calmest day of the year is August 10, with an average hourly wind speed of 5.1 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in Castel d'Aiano varies throughout the year.
The wind is most often from the east for 1.9 months, from February 2 to March 31; for 1.4 weeks, from April 19 to April 29; and for 3.3 months, from August 5 to November 15, with a peak percentage of 35% on March 2. The wind is most often from the south for 2.7 weeks, from March 31 to April 19; for 3.7 weeks, from April 29 to May 25; and for 1.6 weeks, from November 15 to November 26, with a peak percentage of 31% on April 29. The wind is most often from the west for 2.4 months, from May 25 to August 5 and for 2.9 weeks, from December 19 to January 8, with a peak percentage of 33% on June 12.
Castel d'Aiano 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 2.7 months, from June 29 to September 18, with an average temperature above 73°F. The day of the year with the warmest water is August 9, with an average temperature of 77°F.
The time of year with cooler water lasts for 4.4 months, from December 13 to April 26, with an average temperature below 60°F. The day of the year with the coolest water is February 24, with an average temperature of 56°F.
Average Water Temperature
Best Time of Year to Visit
To characterize how pleasant the weather is in Castel d'Aiano 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 time of year to visit Castel d'Aiano for general outdoor tourist activities is from late June to early September, with a peak score in the third week of July.
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 Castel d'Aiano for hot-weather activities is from early July to mid August, 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 Castel d'Aiano typically lasts for 7.4 months (226 days), from around March 31 to around November 12, rarely starting before March 12 or after April 22, and rarely ending before October 24 or after December 1.
Time Spent in Various Temperature Bands and the Growing Season
Based on growing degree days alone, the first spring blooms in Castel d'Aiano should appear around May 1, only rarely appearing before April 19 or after May 14.
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 3.2 months, from May 11 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 7.3 kWh.
The darker period of the year lasts for 3.6 months, from October 28 to February 15, with an average daily incident shortwave energy per square meter below 2.6 kWh. The darkest day of the year is December 15, with an average of 1.4 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Castel d'Aiano are 44.278 deg latitude, 11.001 deg longitude, and 2,418 ft elevation.
The topography within 2 miles of Castel d'Aiano contains very significant variations in elevation, with a maximum elevation change of 1,736 feet and an average elevation above sea level of 2,493 feet. Within 10 miles contains very significant variations in elevation (3,264 feet). Within 50 miles contains large variations in elevation (7,119 feet).
The area within 2 miles of Castel d'Aiano is covered by trees (66%) and cropland (34%), within 10 miles by trees (61%) and cropland (36%), and within 50 miles by cropland (52%) and trees (39%).
This report illustrates the typical weather in Castel d'Aiano, 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 Castel d'Aiano.
For each station, the records are corrected for the elevation difference between that station and Castel d'Aiano 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 Castel d'Aiano is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Castel d'Aiano and a given station.
The stations contributing to this reconstruction are: Monte Cimone (18%, 26 kilometers, west); Bologna Guglielmo Marconi Airport (45%, 37 kilometers, northeast); and Florence Peretola Airport (38%, 55 kilometers, south).
Time zones for aiports and weather stations are provided by AskGeo.com .