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Average Weather in Agassiz Canada

In Agassiz, the summers are warm and partly cloudy and the winters are chilly, wet, and overcast. Over the course of the year, the temperature typically varies from 33°F to 79°F and is rarely below 22°F or above 89°F.

The warm season lasts for 3.0 months, from June 17 to September 16, with an average daily high temperature above 71°F. The hottest day of the year is August 1, with an average high of 79°F and low of 56°F.

The cool season lasts for 3.3 months, from November 12 to February 21, with an average daily high temperature below 49°F. The coldest day of the year is December 30, with an average low of 33°F and high of 42°F.

Average High and Low Temperature

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 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

Average Hourly Temperature in Agassiz12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDecchillycoldcoolcomfortablewarm
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

In Agassiz, 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 Agassiz begins around June 22 and lasts for 3.2 months, ending around September 28. On August 4, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 66% of the time, and overcast or mostly cloudy 34% of the time.

The cloudier part of the year begins around September 28 and lasts for 8.8 months, ending around June 22. On November 30, the cloudiest day of the year, the sky is overcast or mostly cloudy 79% of the time, and clear, mostly clear, or partly cloudy 21% of the time.

Cloud Cover

Cloud Cover in Agassizclearercloudiercloudier0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecNov 3079%Nov 3079%Aug 434%Aug 434%Jun 2257%Jun 2257%Sep 2857%Sep 2857%overcastmostly cloudymostly clearclear
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. The chance of wet days in Agassiz varies significantly throughout the year.

The wetter season lasts 6.7 months, from October 7 to April 27, with a greater than 38% chance of a given day being a wet day. The chance of a wet day peaks at 63% on November 18.

The drier season lasts 5.4 months, from April 27 to October 7. The smallest chance of a wet day is 13% on August 6.

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 59% on November 11.

Daily Chance of Precipitation

Daily Chance of Precipitation in Agassizwetwetdry0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecNov 1863%Nov 1863%Aug 613%Aug 613%Jan 154%Jan 154%Oct 738%Oct 738%Apr 2738%Apr 2738%snowrainmixed
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 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. Agassiz experiences extreme seasonal variation in monthly rainfall.

Rain falls throughout the year in Agassiz. The most rain falls during the 31 days centered around November 17, with an average total accumulation of 9.5 inches.

The least rain falls around August 1, with an average total accumulation of 1.2 inches.

Average Monthly Rainfall

Average Monthly Rainfall in Agassiz0 in5 in10 in15 inJanFebMarAprMayJunJulAugSepOctNovDecNov 179.5 inNov 179.5 inAug 11.2 inAug 11.2 in
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.

Snowfall

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. Agassiz experiences some seasonal variation in monthly liquid-equivalent snowfall.

The snowy period of the year lasts for 4.2 months, from November 7 to March 13, with a sliding 31-day liquid-equivalent snowfall of at least 0.1 inches. The most snow falls during the 31 days centered around January 4, with an average total liquid-equivalent accumulation of 0.5 inches.

The snowless period of the year lasts for 7.8 months, from March 13 to November 7. The least snow falls around July 23, with an average total liquid-equivalent accumulation of 0.0 inches.

Average Liquid-Equivalent Monthly Snowfall

Average Liquid-Equivalent Monthly Snowfall in Agassizsnowsnow0 in2 in4 in6 in8 in10 inJanFebMarAprMayJunJulAugSepOctNovDecJan 40.5 inJan 40.5 inJul 230.0 inJul 230.0 inNov 70.1 inNov 70.1 inMar 130.1 inMar 130.1 in
The average liquid-equivalent snowfall (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 rainfall.

Sun

The length of the day in Agassiz varies extremely over the course of the year. In 2017, the shortest day is December 21, with 8 hours, 11 minutes of daylight; the longest day is June 21, with 16 hours, 15 minutes of daylight.

Hours of Daylight and Twilight

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 earliest sunrise is at 5:01 AM on June 16, and the latest sunrise is 3 hours, 1 minute later at 8:02 AM on December 31. The earliest sunset is at 4:08 PM on December 11, and the latest sunset is 5 hours, 8 minutes later at 9:16 PM on June 25.

Daylight saving time (DST) is observed in Agassiz 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

Sunrise & Sunset with Twilight and Daylight Saving Time in Agassiz12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDecJun 165:01 AMJun 165:01 AM9:16 PMJun 259:16 PMJun 25Dec 114:08 PMDec 114:08 PM8:02 AMDec 318:02 AMDec 31Mar 12DSTMar 12DSTDSTNov 5DSTNov 5daynightnightnightnight
The solar day over the course of the year 2017. 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. The transitions to and from daylight saving time are indicated by the 'DST' labels.

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 perceived humidity level in Agassiz, 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 3% of 3% throughout.

Humidity Comfort Levels

Humidity Comfort Levels in Agassiz0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecMar 30%Mar 30%Aug 46%Aug 46%muggymuggyhumidhumidcomfortablecomfortabledrydry
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 in Agassiz does not vary significantly over the course of the year, remaining within 0.4 miles per hour of 1.9 miles per hour throughout.

Average Wind Speed

Average Wind Speed in Agassiz0.0 mph0.5 mph1.0 mph1.5 mph2.0 mph2.5 mph3.0 mph3.5 mphJanFebMarAprMayJunJulAugSepOctNovDecDec 292.3 mphDec 292.3 mphAug 61.5 mphAug 61.5 mph
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The predominant average hourly wind direction in Agassiz varies throughout the year.

The wind is most often from the south for 1.9 months, from March 8 to May 4 and for 2.9 months, from September 2 to November 29, with a peak percentage of 50% on November 4. The wind is most often from the west for 3.9 months, from May 4 to September 2, with a peak percentage of 53% on July 19. The wind is most often from the east for 3.3 months, from November 29 to March 8, with a peak percentage of 53% on January 1.

Wind Direction

Wind Direction in AgassizESWSE0%20%40%60%80%100%JanFebMarAprMayJunJulAugSepOctNovDecwestsoutheastnorth
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).

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 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 5.3 kWh. The brightest day of the year is July 21, with an average of 6.5 kWh.

The darker period of the year lasts for 3.9 months, from October 20 to February 18, with an average daily incident shortwave energy per square meter below 2.0 kWh. The darkest day of the year is December 26, with an average of 0.8 kWh.

Average Daily Incident Shortwave Solar Energy

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 Agassiz are 49.233 deg latitude, -121.769 deg longitude, and 62 ft elevation.

The topography within 2 miles of Agassiz contains very significant variations in elevation, with a maximum elevation change of 1,050 feet and an average elevation above sea level of 133 feet. Within 10 miles contains very significant variations in elevation (7,808 feet). Within 50 miles also contains extreme variations in elevation (10,768 feet).

The area within 2 miles of Agassiz is covered by cropland (47%), trees (32%), and water (12%), within 10 miles by trees (70%) and cropland (15%), and within 50 miles by trees (70%).

Data Sources

This report illustrates the typical weather in Agassiz, 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 2 weather stations near enough to contribute to our estimation of the temperature and dew point in Agassiz.

For each station, the records are corrected for the elevation difference between that station and Agassiz 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 Agassiz is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Agassiz and a given station.

The stations contributing to this reconstruction are: Agassiz Automated Reporting Station (99%, 1.9 kilometers, north) and Abbotsford International Airport (0.8%, 49 kilometers, southwest).

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.