Climate and Average Weather Year Round in Marystown Canada

In Marystown, the summers are short and cool; the winters are freezing, snowy, and windy; and it is partly cloudy year round. Over the course of the year, the temperature typically varies from 21°F to 64°F and is rarely below 10°F or above 69°F.

Based on the tourism score, the best time of year to visit Marystown for warm-weather activities is from late July to late August.

The warm season lasts for 2.9 months, from June 26 to September 23, with an average daily high temperature above 58°F. The hottest month of the year in Marystown is August, with an average high of 64°F and low of 55°F.

The cold season lasts for 3.4 months, from December 8 to March 22, with an average daily high temperature below 39°F. The coldest month of the year in Marystown is February, with an average low of 22°F and high of 33°F.

In Marystown, 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 Marystown begins around June 24 and lasts for 4.7 months, ending around November 14.

The clearest month of the year in Marystown is September, during which on average the sky is clear, mostly clear, or partly cloudy 53% of the time.

The cloudier part of the year begins around November 14 and lasts for 7.3 months, ending around June 24.

The cloudiest month of the year in Marystown is May, during which on average the sky is overcast or mostly cloudy 66% of the time.

Marystown does not experience significant seasonal variation in the frequency of wet days (i.e., those with greater than 0.04 inches of liquid or liquid-equivalent precipitation). The frequency ranges from 29% to 39%, with an average value of 33%.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. The month with the most days of rain alone in Marystown is November, with an average of 10.5 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 37% on November 6.

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. Marystown experiences some seasonal variation in monthly rainfall.

Rain falls throughout the year in Marystown. The month with the most rain in Marystown is October, with an average rainfall of 4.2 inches.

The month with the least rain in Marystown is February, with an average rainfall of 2.3 inches.

Snowfall

As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day of the year. Marystown experiences extreme seasonal variation in monthly snowfall.

The snowy period of the year lasts for 5.2 months, from November 14 to April 21, with a sliding 31-day snowfall of at least 1.0 inches. The month with the most snow in Marystown is February, with an average snowfall of 12.0 inches.

The snowless period of the year lasts for 6.8 months, from April 21 to November 14. The least snow falls around July 30, with an average total accumulation of 0.0 inches.

The length of the day in Marystown varies significantly over the course of the year. In 2024, the shortest day is December 21, with 8 hours, 29 minutes of daylight; the longest day is June 20, with 15 hours, 55 minutes of daylight.

The earliest sunrise is at 5:14 AM on June 15, and the latest sunrise is 2 hours, 43 minutes later at 7:57 AM on December 31. The earliest sunset is at 4:20 PM on December 11, and the latest sunset is 4 hours, 50 minutes later at 9:10 PM on June 25.

Daylight saving time (DST) is observed in Marystown during 2024, starting in the spring on March 10, lasting 7.8 months, and ending in the fall on November 3.

The figure below presents a compact representation of key lunar data for 2024. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases.

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 Marystown, 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.

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 Marystown experiences significant seasonal variation over the course of the year.

The windier part of the year lasts for 5.8 months, from October 12 to April 6, with average wind speeds of more than 10.7 miles per hour. The windiest month of the year in Marystown is January, with an average hourly wind speed of 13.7 miles per hour.

The calmer time of year lasts for 6.2 months, from April 6 to October 12. The calmest month of the year in Marystown is July, with an average hourly wind speed of 7.7 miles per hour.

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

The wind is most often from the south for 1.7 weeks, from May 19 to May 31 and for 1.0 months, from June 9 to July 10, with a peak percentage of 41% on July 8. The wind is most often from the west for 1.3 weeks, from May 31 to June 9 and for 10 months, from July 10 to May 19, with a peak percentage of 35% on June 5.

Marystown 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 significant seasonal variation over the course of the year.

The time of year with warmer water lasts for 2.4 months, from July 16 to September 28, with an average temperature above 54°F. The month of the year in Marystown with the warmest water is August, with an average temperature of 59°F.

The time of year with cooler water lasts for 4.7 months, from December 21 to May 10, with an average temperature below 38°F. The month of the year in Marystown with the coolest water is March, with an average temperature of 33°F.

To characterize how pleasant the weather is in Marystown 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 Marystown for general outdoor tourist activities is from late July to late August, with a peak score in the second 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 Marystown for hot-weather activities is for the entire month of August.

Methodology

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.

Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

The growing season in Marystown typically lasts for 6.2 months (190 days), from around April 29 to around November 5, rarely starting before April 12 or after May 16, and rarely ending before October 18 or after November 24.

Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F.

Based on growing degree days alone, the first spring blooms in Marystown should appear around July 3, only rarely appearing before June 25 or after July 14.

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 23, with an average daily incident shortwave energy per square meter above 5.1 kWh. The brightest month of the year in Marystown is July, with an average of 6.0 kWh.

The darker period of the year lasts for 3.7 months, from October 30 to February 18, with an average daily incident shortwave energy per square meter below 2.0 kWh. The darkest month of the year in Marystown is December, with an average of 1.0 kWh.

For the purposes of this report, the geographical coordinates of Marystown are 47.167 deg latitude, -55.148 deg longitude, and 43 ft elevation.

The topography within 2 miles of Marystown contains significant variations in elevation, with a maximum elevation change of 604 feet and an average elevation above sea level of 161 feet. Within 10 miles contains significant variations in elevation (833 feet). Within 50 miles also contains very significant variations in elevation (1,302 feet).

The area within 2 miles of Marystown is covered by trees (32%), sparse vegetation (25%), water (18%), and grassland (18%), within 10 miles by trees (37%) and water (33%), and within 50 miles by water (68%) and trees (17%).