Average Weather in Princeton Canada
In Princeton, the summers are warm, dry, and partly cloudy and the winters are freezing, snowy, and mostly cloudy. Over the course of the year, the temperature typically varies from 14°F to 82°F and is rarely below -3°F or above 93°F.
The warm season lasts for 3.2 months, from June 12 to September 17, with an average daily high temperature above 70°F. The hottest day of the year is August 4, with an average high of 82°F and low of 50°F.
The cold season lasts for 3.1 months, from November 17 to February 20, with an average daily high temperature below 37°F. The coldest day of the year is December 30, with an average low of 14°F and high of 26°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 Princeton, 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 Princeton begins around June 23 and lasts for 3.2 months, ending around September 28. On August 3, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 68% of the time, and overcast or mostly cloudy 32% of the time.
The cloudier part of the year begins around September 28 and lasts for 8.8 months, ending around June 23. On January 20, the cloudiest day of the year, the sky is overcast or mostly cloudy 68% of the time, and clear, mostly clear, or partly cloudy 32% 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 Princeton varies throughout the year.
The wetter season lasts 7.9 months, from October 15 to June 12, with a greater than 25% chance of a given day being a wet day. The chance of a wet day peaks at 40% on November 18.
The drier season lasts 4.1 months, from June 12 to October 15. The smallest chance of a wet day is 10% on August 10.
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 Princeton changes throughout the year.
Rain alone is the most common for 8.2 months, from March 10 to November 16. The highest chance of a day with rain alone is 27% on May 29.
Snow alone is the most common for 2.6 months, from November 28 to February 14. The highest chance of a day with snow alone is 23% on January 4.
Mixed snow and rain is the most common for 1.2 months, from February 14 to March 10 and from November 16 to November 28. The highest chance of a day with mixed snow and rain is 16% on November 20.
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. Princeton experiences some seasonal variation in monthly rainfall.
The rainy period of the year lasts for 10 months, from February 11 to December 16, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around November 4, with an average total accumulation of 1.9 inches.
The rainless period of the year lasts for 1.8 months, from December 16 to February 11. The least rain falls around January 2, with an average total accumulation of 0.3 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. Princeton experiences significant seasonal variation in monthly liquid-equivalent snowfall.
The snowy period of the year lasts for 5.9 months, from October 15 to April 11, 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 5, with an average total liquid-equivalent accumulation of 1.6 inches.
The snowless period of the year lasts for 6.1 months, from April 11 to October 15. The least snow falls around July 24, with an average total liquid-equivalent accumulation of 0.0 inches.
Average Liquid-Equivalent Monthly Snowfall
The length of the day in Princeton varies extremely over the course of the year. In 2017, the shortest day is December 21, with 8 hours, 9 minutes of daylight; the longest day is June 21, with 16 hours, 17 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 4:54 AM on June 16, and the latest sunrise is 3 hours, 3 minutes later at 7:58 AM on December 31. The earliest sunset is at 4:02 PM on December 11, and the latest sunset is 5 hours, 10 minutes later at 9:12 PM on June 25.
Daylight saving time (DST) is observed in Princeton 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
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 Princeton, 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, remaining a virtually constant 0% throughout.
Humidity Comfort Levels
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 Princeton does not vary significantly over the course of the year, remaining within 0.2 miles per hour of 2.2 miles per hour throughout.
Average Wind Speed
The predominant average hourly wind direction in Princeton varies throughout the year.
The wind is most often from the west for 7.1 months, from March 16 to October 18, with a peak percentage of 79% on July 18. The wind is most often from the south for 4.9 months, from October 18 to March 16, with a peak percentage of 43% on January 1.
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 3.5 months, from May 8 to August 22, with an average daily incident shortwave energy per square meter above 5.8 kWh. The brightest day of the year is July 15, with an average of 7.1 kWh.
The darker period of the year lasts for 3.7 months, from October 23 to February 15, with an average daily incident shortwave energy per square meter below 2.2 kWh. The darkest day of the year is December 23, with an average of 1.0 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Princeton are 49.458 deg latitude, -120.511 deg longitude, and 2,566 ft elevation.
The topography within 2 miles of Princeton contains very significant variations in elevation, with a maximum elevation change of 1,302 feet and an average elevation above sea level of 2,373 feet. Within 10 miles contains very significant variations in elevation (4,144 feet). Within 50 miles also contains extreme variations in elevation (8,770 feet).
The area within 2 miles of Princeton is covered by sparse vegetation (56%), shrubs (21%), and grassland (15%), within 10 miles by trees (50%) and sparse vegetation (25%), and within 50 miles by trees (69%) and sparse vegetation (17%).
This report illustrates the typical weather in Princeton, 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 Princeton.
For each station, the records are corrected for the elevation difference between that station and Princeton 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 Princeton is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Princeton and a given station.
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.