Average Weather in White Rock Canada
In White Rock, the summers are comfortable and partly cloudy and the winters are chilly, wet, and mostly cloudy. Over the course of the year, the temperature typically varies from 35°F to 72°F and is rarely below 23°F or above 78°F.
The warm season lasts for 3.1 months, from June 12 to September 16, with an average daily high temperature above 66°F. The hottest day of the year is August 3, with an average high of 72°F and low of 57°F.
The cool season lasts for 3.2 months, from November 16 to February 23, with an average daily high temperature below 50°F. The coldest day of the year is January 2, with an average low of 35°F and high of 44°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 White Rock, 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 White Rock begins around June 10 and lasts for 3.8 months, ending around October 3. On August 3, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 73% of the time, and overcast or mostly cloudy 27% of the time.
The cloudier part of the year begins around October 3 and lasts for 8.2 months, ending around June 10. On January 14, the cloudiest day of the year, the sky is overcast or mostly cloudy 71% of the time, and clear, mostly clear, or partly cloudy 29% of the time.
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in White Rock varies significantly throughout the year.
The wetter season lasts 6.3 months, from October 11 to April 21, with a greater than 34% chance of a given day being a wet day. The chance of a wet day peaks at 59% on November 18.
The drier season lasts 5.7 months, from April 21 to October 11. The smallest chance of a wet day is 10% on August 1.
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 57% on November 18.
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. White Rock experiences extreme seasonal variation in monthly rainfall.
Rain falls throughout the year in White Rock. The most rain falls during the 31 days centered around November 19, with an average total accumulation of 7.5 inches.
The least rain falls around July 31, with an average total accumulation of 0.8 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. White Rock experiences some seasonal variation in monthly liquid-equivalent snowfall.
The snowy period of the year lasts for 2.2 months, from December 1 to February 6, 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 31, with an average total liquid-equivalent accumulation of 0.3 inches.
The snowless period of the year lasts for 9.8 months, from February 6 to December 1. The least snow falls around July 23, with an average total liquid-equivalent accumulation of 0.0 inches.
Average Liquid-Equivalent Monthly Snowfall
The length of the day in White Rock varies extremely over the course of the year. In 2017, the shortest day is December 21, with 8 hours, 13 minutes of daylight; the longest day is June 21, with 16 hours, 13 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, 59 minutes later at 8:05 AM on December 31. The earliest sunset is at 4:13 PM on December 11, and the latest sunset is 5 hours, 6 minutes later at 9:19 PM on June 25.
Daylight saving time (DST) is observed in White Rock during 2017, starting in the spring on March 12, lasting 7.8 months, and ending in the fall on November 5.
Sunrise & Sunset with Twilight and Daylight Saving Time
The perceived humidity level in White Rock, as measured by the percentage of time in which the humidity comfort level is muggy, oppressive, or miserable, does not vary significantly over the course of the year, staying within 1% of 1% throughout.
Humidity Comfort Levels
The average hourly wind speed in White Rock experiences mild seasonal variation over the course of the year.
The windier part of the year lasts for 5.8 months, from October 18 to April 11, with average wind speeds of more than 2.6 miles per hour. The windiest day of the year is December 4, with an average hourly wind speed of 3.7 miles per hour.
The calmer time of year lasts for 6.2 months, from April 11 to October 18. The calmest day of the year is August 9, with an average hourly wind speed of 1.6 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in White Rock varies throughout the year.
The wind is most often from the south for 7.0 months, from March 17 to October 16, with a peak percentage of 54% on June 21. The wind is most often from the east for 5.0 months, from October 16 to March 17, with a peak percentage of 53% on January 1.
White Rock 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 some seasonal variation over the course of the year.
The time of year with warmer water lasts for 3.0 months, from June 16 to September 17, with an average temperature above 56°F. The day of the year with the warmest water is August 2, with an average temperature of 59°F.
The time of year with cooler water lasts for 4.5 months, from November 22 to April 6, with an average temperature below 48°F. The day of the year with the coolest water is January 29, with an average temperature of 45°F.
Average Water Temperature
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 11 to August 21, with an average daily incident shortwave energy per square meter above 5.5 kWh. The brightest day of the year is July 20, with an average of 6.8 kWh.
The darker period of the year lasts for 3.9 months, from October 22 to February 20, with an average daily incident shortwave energy per square meter below 2.0 kWh. The darkest day of the year is December 25, with an average of 0.8 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of White Rock are 49.016 deg latitude, -122.803 deg longitude, and 30 ft elevation.
The topography within 2 miles of White Rock contains only modest variations in elevation, with a maximum elevation change of 407 feet and an average elevation above sea level of 98 feet. Within 10 miles contains only modest variations in elevation (531 feet). Within 50 miles contains significant variations in elevation (10,768 feet).
The area within 2 miles of White Rock is covered by water (54%) and artificial surfaces (40%), within 10 miles by water (38%) and cropland (38%), and within 50 miles by trees (41%) and water (33%).
This report illustrates the typical weather in White Rock, 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 White Rock.
For each station, the records are corrected for the elevation difference between that station and White Rock 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 White Rock is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between White Rock and a given station.
The stations contributing to this reconstruction are: White Rock Automatic Weather Reporting System (96%, 2.6 kilometers, east); Saturna Island Meteorological Aeronautical Presentation System (2.4%, 31 kilometers, southwest); and Vancouver International Airport (2.0%, 34 kilometers, northwest).
Time zones for aiports and weather stations are provided by AskGeo.com .