Average Weather in July in Irma Italy
Daily high temperatures increase by 2°F, from 72°F to 74°F, rarely falling below 64°F or exceeding 81°F. The highest daily average high temperature is 74°F on July 27.
Daily low temperatures increase by 2°F, from 57°F to 59°F, rarely falling below 49°F or exceeding 65°F. The highest daily average low temperature is 59°F on July 30.
For reference, on July 26, the hottest day of the year, temperatures in Irma typically range from 59°F to 74°F, while on January 12, the coldest day of the year, they range from 25°F to 36°F.
Average High and Low Temperature in July
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on July. The horizontal axis is the day, 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 July
Kitimat, Canada (5,136 miles away); Hope, Canada (5,258 miles); and Banner Elk, North Carolina, United States (4,587 miles) are the far-away foreign places with temperatures most similar to Irma (view comparison).
The month of July in Irma experiences gradually decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 35% to 28%. The lowest chance of overcast or mostly cloudy conditions is 28% on July 22.
The clearest day of the month is July 22, with clear, mostly clear, or partly cloudy conditions 72% of the time.
For reference, on May 2, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 56%, while on July 22, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 72%.
Cloud Cover Categories in July
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Irma, the chance of a wet day over the course of July is decreasing, starting the month at 32% and ending it at 28%.
For reference, the year's highest daily chance of a wet day is 38% on May 29, and its lowest chance is 15% on February 1.
Probability of Precipitation in July
The average sliding 31-day rainfall during July in Irma is gradually decreasing, starting the month at 3.0 inches, when it rarely exceeds 5.0 inches or falls below 1.2 inches, and ending the month at 2.7 inches, when it rarely exceeds 5.0 inches or falls below 1.1 inches.
The lowest average 31-day accumulation is 2.7 inches on July 27.
Average Monthly Rainfall in July
Over the course of July in Irma, the length of the day is decreasing. From the start to the end of the month, the length of the day decreases by 51 minutes, implying an average daily decrease of 1 minute, 41 seconds, and weekly decrease of 11 minutes, 50 seconds.
The shortest day of the month is July 31, with 14 hours, 49 minutes of daylight and the longest day is July 1, with 15 hours, 40 minutes of daylight.
Hours of Daylight and Twilight in July
The earliest sunrise of the month in Irma is 5:32 AM on July 1 and the latest sunrise is 28 minutes later at 6:00 AM on July 31.
The latest sunset is 9:12 PM on July 1 and the earliest sunset is 23 minutes earlier at 8:49 PM on July 31.
Daylight saving time is observed in Irma during 2018, but it neither starts nor ends during July, so the entire month is in daylight saving time.
For reference, on June 21, the longest day of the year, the Sun rises at 5:28 AM and sets 15 hours, 43 minutes later, at 9:12 PM, while on December 21, the shortest day of the year, it rises at 7:56 AM and sets 8 hours, 40 minutes later, at 4:36 PM.
Sunrise & Sunset with Twilight in July
The chance that a given day will be muggy in Irma is essentially constant during July, remaining within 1% of 2% throughout.
The highest chance of a muggy day during July is 3% on July 26.
For reference, on July 26, the muggiest day of the year, there are muggy conditions 3% of the time, while on January 1, the least muggy day of the year, there are muggy conditions 0% of the time.
Humidity Comfort Levels in July
The average hourly wind speed in Irma is essentially constant during July, remaining within 0.1 miles per hour of 4.0 miles per hour throughout.
For reference, on April 13, the windiest day of the year, the daily average wind speed is 4.7 miles per hour, while on November 23, the calmest day of the year, the daily average wind speed is 3.8 miles per hour.
Average Wind Speed in July
Wind Direction in July
The growing season in Irma typically lasts for 6.9 months (210 days), from around April 10 to around November 6, rarely starting before March 20 or after May 1, and rarely ending before October 16 or after November 26.
The month of July in Irma is reliably fully within the growing season.
Time Spent in Various Temperature Bands and the Growing Season in July
The average accumulated growing degree days in Irma are rapidly increasing during July, increasing by 481°F, from 600°F to 1,081°F, over the course of the month.
Growing Degree Days in July
The average daily incident shortwave solar energy in Irma is essentially constant during July, remaining within 0.2 kWh of 6.7 kWh throughout.
The highest average daily incident shortwave solar energy during July is 6.8 kWh on July 8.
Average Daily Incident Shortwave Solar Energy in July
For the purposes of this report, the geographical coordinates of Irma are 45.771 deg latitude, 10.285 deg longitude, and 3,054 ft elevation.
The topography within 2 miles of Irma contains extreme variations in elevation, with a maximum elevation change of 3,793 feet and an average elevation above sea level of 3,052 feet. Within 10 miles also contains extreme variations in elevation (6,693 feet). Within 50 miles also contains extreme variations in elevation (13,219 feet).
The area within 2 miles of Irma is covered by trees (77%) and grassland (12%), within 10 miles by trees (72%) and grassland (16%), and within 50 miles by trees (37%) and cropland (33%).
This report illustrates the typical weather in Irma year round, 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 Irma.
For each station, the records are corrected for the elevation difference between that station and Irma 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 Irma is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Irma and a given station.
The stations contributing to this reconstruction are: Brescia / Ghedi (37%, 38 kilometers, south); Il Caravaggio International Airport (43%, 46 kilometers, west); and Paganella (meteorological station) (20%, 72 kilometers, northeast).
Time zones for aiports and weather stations are provided by AskGeo.com .