Average Weather in Beauharnois Canada
In Beauharnois, the summers are comfortable, the winters are freezing and snowy, and it is partly cloudy year round. Over the course of the year, the temperature typically varies from 8°F to 77°F and is rarely below -9°F or above 85°F.
Based on the tourism score, the best time of year to visit Beauharnois for warm-weather activities is from late June to early September.
The warm season lasts for 3.9 months, from May 24 to September 19, with an average daily high temperature above 66°F. The hottest day of the year is July 27, with an average high of 77°F and low of 61°F.
The cold season lasts for 3.3 months, from December 5 to March 14, with an average daily high temperature below 34°F. The coldest day of the year is January 29, with an average low of 8°F and high of 24°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 Beauharnois, 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 Beauharnois begins around June 9 and lasts for 4.5 months, ending around October 23. On August 29, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 64% of the time, and overcast or mostly cloudy 36% of the time.
The cloudier part of the year begins around October 23 and lasts for 7.5 months, ending around June 9. On January 5, the cloudiest day of the year, the sky is overcast or mostly cloudy 65% of the time, and clear, mostly clear, or partly cloudy 35% of the time.
Cloud Cover Categories
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Beauharnois varies throughout the year.
The wetter season lasts 6.1 months, from April 29 to November 1, with a greater than 32% chance of a given day being a wet day. The chance of a wet day peaks at 41% on July 7.
The drier season lasts 5.9 months, from November 1 to April 29. The smallest chance of a wet day is 22% on February 3.
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 in Beauharnois changes throughout the year.
Rain alone is the most common for 9.1 months, from March 11 to December 14. The highest chance of a day with rain alone is 41% on July 7.
Snow alone is the most common for 2.9 months, from December 14 to March 11. The highest chance of a day with snow alone is 15% on January 30.
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. Beauharnois experiences significant seasonal variation in monthly rainfall.
Rain falls throughout the year in Beauharnois. The most rain falls during the 31 days centered around June 24, with an average total accumulation of 3.2 inches.
The least rain falls around February 6, with an average total accumulation of 0.6 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. Beauharnois experiences significant seasonal variation in monthly liquid-equivalent snowfall.
The snowy period of the year lasts for 5.8 months, from November 2 to April 27, with a sliding 31-day liquid-equivalent snowfall of at least 0.1 inches. The most snow falls during the 31 days centered around December 24, with an average total liquid-equivalent accumulation of 1.1 inches.
The snowless period of the year lasts for 6.2 months, from April 27 to November 2. The least snow falls around August 6, with an average total liquid-equivalent accumulation of 0.0 inches.
Average Liquid-Equivalent Monthly Snowfall
The length of the day in Beauharnois varies significantly over the course of the year. In 2018, the shortest day is December 21, with 8 hours, 44 minutes of daylight; the longest day is June 21, with 15 hours, 40 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 5:06 AM on June 16, and the latest sunrise is 2 hours, 31 minutes later at 7:37 AM on November 3. The earliest sunset is at 4:12 PM on December 10, and the latest sunset is 4 hours, 35 minutes later at 8:47 PM on June 26.
Daylight saving time (DST) is observed in Beauharnois during 2018, starting in the spring on March 11, lasting 7.8 months, and ending in the fall on November 4.
Sunrise & Sunset with Twilight and Daylight Saving Time
Beauharnois experiences some seasonal variation in the perceived humidity.
The muggier period of the year lasts for 3.2 months, from June 9 to September 16, during which time the comfort level is muggy, oppressive, or miserable at least 5% of the time. The muggiest day of the year is July 29, with muggy conditions 22% of the time.
The least muggy day of the year is February 15, when muggy conditions are essentially unheard of.
Humidity Comfort Levels
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed in Beauharnois experiences significant seasonal variation over the course of the year.
The windier part of the year lasts for 4.9 months, from December 5 to May 3, with average wind speeds of more than 7.9 miles per hour. The windiest day of the year is February 24, with an average hourly wind speed of 9.6 miles per hour.
The calmer time of year lasts for 7.1 months, from May 3 to December 5. The calmest day of the year is August 8, with an average hourly wind speed of 6.2 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in Beauharnois is from the west throughout the year.
Best Time of Year to Visit
To characterize how pleasant the weather is in Beauharnois 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 Beauharnois for general outdoor tourist activities is from late June to early September, with a peak score in the first week of August.
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 Beauharnois for hot-weather activities is from mid 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 Beauharnois typically lasts for 5.7 months (174 days), from around April 28 to around October 20, rarely starting before April 11 or after May 16, and rarely ending before October 2 or after November 7.
Time Spent in Various Temperature Bands and the Growing Season
Based on growing degree days alone, the first spring blooms in Beauharnois should appear around May 8, only rarely appearing before April 28 or after May 20.
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 3.6 months, from May 5 to August 24, with an average daily incident shortwave energy per square meter above 5.6 kWh. The brightest day of the year is June 30, with an average of 6.7 kWh.
The darker period of the year lasts for 3.4 months, from October 28 to February 11, with an average daily incident shortwave energy per square meter below 2.3 kWh. The darkest day of the year is December 17, with an average of 1.2 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Beauharnois are 45.313 deg latitude, -73.872 deg longitude, and 115 ft elevation.
The topography within 2 miles of Beauharnois is essentially flat, with a maximum elevation change of 85 feet and an average elevation above sea level of 104 feet. Within 10 miles is essentially flat (144 feet). Within 50 miles contains only modest variations in elevation (3,806 feet).
The area within 2 miles of Beauharnois is covered by water (40%), cropland (28%), and trees (23%), within 10 miles by cropland (47%) and water (23%), and within 50 miles by trees (44%) and cropland (36%).
This report illustrates the typical weather in Beauharnois, 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 Beauharnois.
For each station, the records are corrected for the elevation difference between that station and Beauharnois 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 Beauharnois is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Beauharnois and a given station.
The stations contributing to this reconstruction are: Ste Anne De Bell 1 (54%, 12 kilometers, north); Valleyfield (25%, 20 kilometers, southwest); and Saint Clothilde Automated Reporting Station (21%, 23 kilometers, southeast).
Time zones for aiports and weather stations are provided by AskGeo.com .