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Average Weather in May at Sheringham Automatic Weather Reporting System Canada

At Sheringham Automatic Weather Reporting System, the month of May is characterized by gradually rising daily high temperatures, with daily highs increasing by 3°F, from 55°F to 59°F over the course of the month, and rarely exceeding 66°F or dropping below 49°F.

Daily low temperatures increase by 4°F, from 45°F to 49°F, rarely falling below 40°F or exceeding 53°F.

For reference, on August 2, the hottest day of the year, temperatures at Sheringham Automatic Weather Reporting System typically range from 53°F to 66°F, while on January 2, the coldest day of the year, they range from 38°F to 46°F.

Average High and Low Temperature in May

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 hourly average temperatures for the quarter of the year centered on May. 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 May

Average Hourly Temperature in May at Sheringham Automatic Weather Reporting System18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM4 AM8 AM12 PM4 PM8 PM12 AMAprJuncoldcoolchilly
The average hourly temperature, color coded into bands: frigid < 15°F < freezing < 32°F < chilly < 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

The month of May at Sheringham Automatic Weather Reporting System experiences gradually decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 57% to 52%.

The clearest day of the month is May 31, with clear, mostly clear, or partly cloudy conditions 48% of the time.

For reference, on January 19, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 73%, while on August 3, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 74%.

Cloud Cover Categories in May

Cloud Cover Categories in May at Sheringham Automatic Weather Reporting System1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%AprJunMay 143%May 143%May 3148%May 3148%May 1145%May 1145%May 2147%May 2147%partly cloudymostly cloudyclearovercastmostly clear
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. At Sheringham Automatic Weather Reporting System, the chance of a wet day over the course of May is rapidly decreasing, starting the month at 32% and ending it at 25%.

For reference, the year's highest daily chance of a wet day is 63% on November 17, and its lowest chance is 8% on August 1.

Probability of Precipitation in May

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 month and not just the monthly total, we show the rainfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day rainfall during May at Sheringham Automatic Weather Reporting System is decreasing, starting the month at 2.8 inches, when it rarely exceeds 5.3 inches or falls below 0.8 inches, and ending the month at 1.9 inches, when it rarely exceeds 3.7 inches or falls below 0.4 inches.

Average Monthly Rainfall in May

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.

Sun

Over the course of May at Sheringham Automatic Weather Reporting System, the length of the day is rapidly increasing. From the start to the end of the month, the length of the day increases by 1 hour, 14 minutes, implying an average daily increase of 2 minutes, 29 seconds, and weekly increase of 17 minutes, 22 seconds.

The shortest day of the month is May 1, with 14 hours, 35 minutes of daylight and the longest day is May 31, with 15 hours, 49 minutes of daylight.

Hours of Daylight and Twilight in May

Hours of Daylight and Twilight in May at Sheringham Automatic Weather Reporting System1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrAprJunnightnightdaydayMay 114 hr, 35 minMay 114 hr, 35 minMay 3115 hr, 49 minMay 3115 hr, 49 minMay 1615 hr, 17 minMay 1615 hr, 17 min
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 latest sunrise of the month at Sheringham Automatic Weather Reporting System is 5:55 AM on May 1 and the earliest sunrise is 37 minutes earlier at 5:19 AM on May 31.

The earliest sunset is 8:30 PM on May 1 and the latest sunset is 38 minutes later at 9:08 PM on May 31.

Daylight saving time is observed at Sheringham Automatic Weather Reporting System during 2017, but it neither starts nor ends during May, so the entire month is in daylight saving time.

For reference, on June 21, the longest day of the year, the Sun rises at 5:14 AM and sets 16 hours, 6 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, 19 minutes later, at 4:23 PM.

Sunrise & Sunset with Twilight in May

The solar day over the course of May. 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.

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.

The chance that a given day will be muggy at Sheringham Automatic Weather Reporting System is essentially constant during May, remaining around 0% throughout.

For reference, on June 27, 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 May

Humidity Comfort Levels in May at Sheringham Automatic Weather Reporting System1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%10%20%30%40%50%60%70%80%90%100%AprJunMay 10%May 10%May 310%May 310%May 110%May 110%May 210%May 210%drydrycomfortablecomfortablehumidhumid
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 at Sheringham Automatic Weather Reporting System is essentially constant during May, remaining within 0.1 miles per hour of 2.7 miles per hour throughout.

For reference, on December 4, the windiest day of the year, the daily average wind speed is 3.8 miles per hour, while on August 23, the calmest day of the year, the daily average wind speed is 2.2 miles per hour.

Average Wind Speed in May

The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.
The hourly average wind direction at Sheringham Automatic Weather Reporting System throughout May is predominantly from the west, with a peak proportion of 70% on May 31.

Wind Direction in May

Wind Direction in May at Sheringham Automatic Weather Reporting System1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%AprJunwesteastsouthnorth
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

Sheringham Automatic Weather Reporting System 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 surface water temperature at Sheringham Automatic Weather Reporting System is gradually increasing during May, rising by 2°F, from 50°F to 52°F, over the course of the month.

Average Water Temperature in May

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 at Sheringham Automatic Weather Reporting System is gradually increasing during May, rising by 0.8 kWh, from 5.2 kWh to 6.0 kWh, over the course of the month.

Average Daily Incident Shortwave Solar Energy in May

Average Daily Incident Shortwave Solar Energy in May at Sheringham Automatic Weather Reporting System1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 kWh1 kWh2 kWh3 kWh4 kWh5 kWh6 kWh7 kWh8 kWh9 kWhAprJunMay 15.2 kWhMay 15.2 kWhMay 316.0 kWhMay 316.0 kWhMay 115.6 kWhMay 115.6 kWhMay 215.9 kWhMay 215.9 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 Sheringham Automatic Weather Reporting System are 48.378 deg latitude, -123.920 deg longitude, and 0 ft elevation.

The topography within 2 miles of Sheringham Automatic Weather Reporting System contains significant variations in elevation, with a maximum elevation change of 791 feet and an average elevation above sea level of 103 feet. Within 10 miles contains significant variations in elevation (2,910 feet). Within 50 miles contains large variations in elevation (7,874 feet).

The area within 2 miles of Sheringham Automatic Weather Reporting System is covered by water (67%) and trees (28%), within 10 miles by water (55%) and trees (41%), and within 50 miles by trees (52%) and water (37%).

Data Sources

This report illustrates the typical weather at Sheringham Automatic Weather Reporting System 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

Sheringham Automatic Weather Reporting System has a weather station that reported reliably enough during the analysis period that we have included it in our network. When available, historical temperature and dew point measurements are taken directly from this weather station. These records are obtained from NOAA's Integrated Surface Hourly data set, falling back on ICAO METAR records as required.

In the case of missing or erroneous measurements from this station, we fall back on records from nearby stations, adjusted according to typical seasonal and diurnal intra-station differences. For a given day of the year and hour of the day, the fallback station is selected to minimize the prediction error over the years for which there are measurements for both stations.

The stations on which we may fall back include but are not limited to Malahat Automatic Weather Reporting System; Esquimalt Harbour, B. C.; William R Fairchild International Airport; Victoria International Airport; Victoria Harbour; Victoria Automatic Weather Reporting System; Victoria University; and Discovery Island.

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.