Average Weather in September in Lavertezzo Switzerland
Daily low temperatures decrease by 6°F, from 47°F to 41°F, rarely falling below 35°F or exceeding 53°F.
For reference, on July 26, the hottest day of the year, temperatures in Lavertezzo typically range from 51°F to 67°F, while on January 12, the coldest day of the year, they range from 18°F to 29°F.
Average High and Low Temperature in September
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on September. 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 September
The month of September in Lavertezzo experiences rapidly increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 40% to 53%.
The clearest day of the month is September 1, with clear, mostly clear, or partly cloudy conditions 60% of the time.
For reference, on May 8, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 60%, while on July 21, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 67%.
Cloud Cover Categories in September
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Lavertezzo, the chance of a wet day over the course of September is essentially constant, remaining around 31% throughout.
For reference, the year's highest daily chance of a wet day is 44% on May 26, and its lowest chance is 19% on March 5.
Probability of Precipitation in September
The average sliding 31-day rainfall during September in Lavertezzo is essentially constant, remaining about 4.1 inches throughout, and rarely exceeding 7.6 inches or falling below 1.0 inches.
The highest average 31-day accumulation is 4.1 inches on September 23.
Average Monthly Rainfall in September
Over the course of September in Lavertezzo, the length of the day is rapidly decreasing. From the start to the end of the month, the length of the day decreases by 1 hour, 34 minutes, implying an average daily decrease of 3 minutes, 14 seconds, and weekly decrease of 22 minutes, 35 seconds.
The shortest day of the month is September 30, with 11 hours, 45 minutes of daylight and the longest day is September 1, with 13 hours, 18 minutes of daylight.
Hours of Daylight and Twilight in September
The earliest sunrise of the month in Lavertezzo is 6:45 AM on September 1 and the latest sunrise is 37 minutes later at 7:21 AM on September 30.
The latest sunset is 8:03 PM on September 1 and the earliest sunset is 57 minutes earlier at 7:06 PM on September 30.
Daylight saving time is observed in Lavertezzo during 2017, but it neither starts nor ends during September, so the entire month is in daylight saving time.
For reference, on June 21, the longest day of the year, the Sun rises at 5:32 AM and sets 15 hours, 47 minutes later, at 9:20 PM, while on December 21, the shortest day of the year, it rises at 8:04 AM and sets 8 hours, 36 minutes later, at 4:41 PM.
Sunrise & Sunset with Twilight and Daylight Saving Time in September
The chance that a given day will be muggy in Lavertezzo is essentially constant during September, remaining around 0% throughout.
For reference, on June 22, the muggiest day of the year, there are muggy conditions 0% 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 September
The average hourly wind speed in Lavertezzo is essentially constant during September, remaining within 0.1 miles per hour of 3.7 miles per hour throughout.
For reference, on March 31, the windiest day of the year, the daily average wind speed is 4.6 miles per hour, while on August 11, the calmest day of the year, the daily average wind speed is 3.4 miles per hour.
The highest daily average wind speed during September is 3.8 miles per hour on September 11.
Average Wind Speed in September
Wind Direction in September
The growing season in Lavertezzo typically lasts for 5.2 months (161 days), from around May 5 to around October 13, rarely starting before April 12 or after May 31, and rarely ending before September 25 or after October 29.
The month of September in Lavertezzo is more likely than not fully within the growing season, with the chance that a given day is in the growing season decreasing from 99% to 83% over the course of the month.
Time Spent in Various Temperature Bands and the Growing Season in September
The average accumulated growing degree days in Lavertezzo are gradually increasing during September, increasing by 95°F, from 774°F to 869°F, over the course of the month.
Growing Degree Days in September
The average daily incident shortwave solar energy in Lavertezzo is rapidly decreasing during September, falling by 1.5 kWh, from 5.2 kWh to 3.7 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in September
For the purposes of this report, the geographical coordinates of Lavertezzo are 46.259 deg latitude, 8.838 deg longitude, and 4,606 ft elevation.
The topography within 2 miles of Lavertezzo contains extreme variations in elevation, with a maximum elevation change of 5,358 feet and an average elevation above sea level of 3,777 feet. Within 10 miles also contains extreme variations in elevation (8,461 feet). Within 50 miles also contains extreme variations in elevation (14,377 feet).
The area within 2 miles of Lavertezzo is covered by trees (80%) and grassland (10%), within 10 miles by trees (57%), and within 50 miles by trees (40%) and grassland (19%).
This report illustrates the typical weather in Lavertezzo 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 4 weather stations near enough to contribute to our estimation of the temperature and dew point in Lavertezzo.
For each station, the records are corrected for the elevation difference between that station and Lavertezzo 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 Lavertezzo is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Lavertezzo and a given station.
The stations contributing to this reconstruction are: Locarno Airport (31%, 10 kilometers, south); Interlaken Airport (34%, 78 kilometers, northwest); Pian Rosa (12%, 95 kilometers, west); and Resia Pass (23%, 142 kilometers, northeast).
Time zones for aiports and weather stations are provided by AskGeo.com .