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Average Weather in San Prospero Italy

In San Prospero, 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 95°F.

Temperature

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 29, with an average high of 88°F and low of 67°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 11, with an average low of 31°F and high of 42°F.

Average High and Low Temperature

The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.

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

Average Hourly Temperature in San ProsperoJanFebMarAprMayJunJulAugSepOctNovDec12 AM4 AM8 AM12 PM4 PM8 PM12 AMhotcoldcoolwarmvery coldcomfortable
The average hourly temperature, color coded into bands: frigid < 15°F < freezing < 32°F < very cold < 45°F < cold < 55°F < cool < 65°F < comfortable < 75°F < warm < 85°F < hot < 95°F < sweltering. The shaded overlays indicate night and civil twilight.

Clouds

In San Prospero, 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 San Prospero 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 December 4, 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

Cloud Cover Categories in San ProsperoclearercloudiercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Jul 2179%Jul 2179%Dec 446%Dec 446%Jun 1462%Jun 1462%Sep 2163%Sep 2163%clearmostly cloudyovercastmostly clearpartly cloudy
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds: clear < 20% < mostly clear < 40% < partly cloudy < 60% < mostly cloudy < 80% < overcast.

Precipitation

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in San Prospero 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 5.

The drier season lasts 4.0 months, from November 28 to March 27. The smallest chance of a wet day is 17% on February 12.

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 5.

Daily Chance of Precipitation

Daily Chance of Precipitation in San ProsperowetdrydryJanFebMarAprMayJunJulAugSepOctNovDec0%10%20%30%40%50%60%70%80%90%100%May 529%May 529%Feb 1217%Feb 1217%Jan 119%Jan 119%Mar 2723%Mar 2723%rainmixed
The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).

Rainfall

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. San Prospero experiences some seasonal variation in monthly rainfall.

Rain falls throughout the year in San Prospero. The most rain falls during the 31 days centered around October 23, with an average total accumulation of 2.9 inches.

The least rain falls around January 13, with an average total accumulation of 1.1 inches.

Average Monthly Rainfall

The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average liquid-equivalent snowfall.

Snowfall

The sliding 31-day liquid-equivalent quantity of snowfall in San Prospero 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

Average Liquid-Equivalent Monthly Snowfall in San ProsperosnowJanFebMarAprMayJunJulAugSepOctNovDec0.0 in0.5 in1.0 in1.5 in2.0 in2.5 in3.0 inJan 80.2 inJan 80.2 inJul 80.0 inJul 80.0 inDec 140.1 inDec 140.1 in
The average liquid-equivalent snowfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average rainfall.

Sun

The length of the day in San Prospero varies significantly over the course of the year. In 2017, the shortest day is December 21, with 8 hours, 47 minutes of daylight; the longest day is June 21, with 15 hours, 35 minutes of daylight.

Hours of Daylight and Twilight

Hours of Daylight and Twilight in San ProsperoJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 6 minMar 2012 hr, 6 minMar 2015 hr, 35 minJun 2115 hr, 35 minJun 2112 hr, 10 minSep 2212 hr, 10 minSep 228 hr, 47 minDec 218 hr, 47 minDec 21nightnightday
The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.

The earliest sunrise is at 5:29 AM on June 15, and the latest sunrise is 2 hours, 24 minutes later at 7:53 AM on January 1. The earliest sunset is at 4:34 PM on December 10, and the latest sunset is 4 hours, 31 minutes later at 9:05 PM on June 26.

Daylight saving time (DST) is observed in San Prospero during 2017, starting in the spring on March 26, lasting 7.1 months, and ending in the fall on October 29.

Sunrise & Sunset with Twilight and Daylight Saving Time

Sunrise & Sunset with Twilight and Daylight Saving Time in San ProsperoJanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 155:29 AMJun 155:29 AM9:05 PMJun 269:05 PMJun 26Dec 104:34 PMDec 104:34 PM7:53 AMJan 17:53 AMJan 1Mar 26DSTMar 26DSTDSTOct 29DSTOct 29daynightnightnightnightSolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day over the course of the year 2017. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray. The transitions to and from daylight saving time are indicated by the 'DST' labels.

Humidity

We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.

San Prospero experiences significant seasonal variation in the perceived humidity.

The muggier period of the year lasts for 3.0 months, from June 12 to September 14, 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 35% of the time.

The least muggy day of the year is February 28, when muggy conditions are essentially unheard of.

Humidity Comfort Levels

Humidity Comfort Levels in San ProsperomuggyJanFebMarAprMayJunJulAugSepOctNovDec0%10%20%30%40%50%60%70%80%90%100%Feb 280%Feb 280%Aug 635%Aug 635%Jun 129%Jun 129%Sep 149%Sep 149%comfortablecomfortabledrydryhumidhumidmuggymuggyoppressiveoppressive
The percentage of time spent at various humidity comfort levels, categorized by dew point: dry < 55°F < comfortable < 60°F < humid < 65°F < muggy < 70°F < oppressive < 75°F < miserable.

Wind

This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.

The average hourly wind speed in San Prospero experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 3.9 months, from January 24 to May 20, with average wind speeds of more than 5.9 miles per hour. The windiest day of the year is March 31, with an average hourly wind speed of 6.7 miles per hour.

The calmer time of year lasts for 8.1 months, from May 20 to January 24. The calmest day of the year is August 7, with an average hourly wind speed of 5.2 miles per hour.

Average Wind Speed

Average Wind Speed in San ProsperowindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph1 mph2 mph3 mph4 mph5 mph6 mph7 mph8 mph9 mph10 mph11 mph12 mphMar 316.7 mphMar 316.7 mphAug 75.2 mphAug 75.2 mphJan 245.9 mphJan 245.9 mphMay 205.9 mphMay 205.9 mph
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The predominant average hourly wind direction in San Prospero varies throughout the year.

The wind is most often from the east for 10 months, from January 27 to December 1, with a peak percentage of 46% on October 24. The wind is most often from the west for 1.8 months, from December 1 to January 27, with a peak percentage of 41% on January 1.

Wind Direction

Wind Direction in San ProsperoWEWJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%eastwestsouthnorth
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions (north, east, south, and west), excluding hours in which the mean wind speed is less than 1 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Water Temperature

San Prospero 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 2.9 months, from June 20 to September 18, with an average temperature above 72°F. The day of the year with the warmest water is August 5, with an average temperature of 78°F.

The time of year with cooler water lasts for 3.8 months, from December 17 to April 11, with an average temperature below 56°F. The day of the year with the coolest water is February 18, with an average temperature of 50°F.

Average Water Temperature

The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.

Solar Energy

This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.

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 10 to August 18, with an average daily incident shortwave energy per square meter above 6.0 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 14, 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

Average Daily Incident Shortwave Solar Energy in San ProsperobrightdarkdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh1 kWh2 kWh3 kWh4 kWh5 kWh6 kWh7 kWh8 kWh9 kWhJul 87.2 kWhJul 87.2 kWhDec 161.4 kWhDec 161.4 kWhMay 106.0 kWhMay 106.0 kWhAug 186.0 kWhAug 186.0 kWhOct 292.6 kWhOct 292.6 kWhFeb 142.6 kWhFeb 142.6 kWh
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.

Topography

For the purposes of this report, the geographical coordinates of San Prospero are 44.790 deg latitude, 11.022 deg longitude, and 66 ft elevation.

The topography within 2 miles of San Prospero is essentially flat, with a maximum elevation change of 85 feet and an average elevation above sea level of 66 feet. Within 10 miles is essentially flat (135 feet). Within 50 miles contains only modest variations in elevation (7,090 feet).

The area within 2 miles of San Prospero is covered by cropland (91%), within 10 miles by cropland (93%), and within 50 miles by cropland (74%) and trees (17%).

Data Sources

This report illustrates the typical weather in San Prospero, 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 San Prospero.

For each station, the records are corrected for the elevation difference between that station and San Prospero 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 San Prospero is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between San Prospero and a given station.

The stations contributing to this reconstruction are: Bologna Guglielmo Marconi Airport (58%, 35 kilometers, southeast); Verona Villafranca Airport (22%, 68 kilometers, north); Piacenza-San Damiano Air Base (12%, 103 kilometers, west); and Venice Marco Polo Airport (8%, 131 kilometers, northeast).

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Tables of the Sun, Moon and Planets , by Jean Meeus.

All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.

Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.

Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.

Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .

Time zones for aiports and weather stations are provided by AskGeo.com .

Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.

Disclaimer

The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.

We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.