The climate of Glastonbury
A small town in
Connecticut, USA,
Glastonbury is categorized under the Dfa type according to the Köppen climate classification. This classification suggests a humid continental climate with no dry season and a hot summer. Throughout the year, the weather shifts from cold snowy winters to hot, humid summers with heavy rainfall.
Based on collected data, there is clear differentiation between the highest temperature, which can reach up to 83.1°F (28.4°C) in
July, and the lowest hitting 21.2°F (-6°C) in
January. Relative humidity oscillates mildly, staying within the range from 70% to 79%. Monthly avergare rainfall varies from 1.93" (49mm) in
September to 3.19" (81mm) in
December. In terms of snowfall, January and
February witness the heaviest coverage with 2.83" (72mm) and 4.45" (113mm) respectively. Snowfall days range from zero in summer months to a peak of 8.1 days in February.
Days are longest in
June with a daylight average of 15.2 hours, and shortest in December with 9.2 hours. Sunshine hours vary from around 4.8 hours in December to 10.4 hours from July to
August. Despite the variation in daylight, visibility remains consistently at an average of 6 miles. Cloud coverage swings from 33% in August to 49% in February. Air pressure sees minor fluctuations, staying approximately between 29.93Hg and 30.09Hg. Wind speeds follow a similar pattern ranging from 5.3mph (8.5km/h) to 8.1mph (13km/h).
Interestingly, Glastonbury experiences its highest rainfall in December, a time when most places are experiencing snow. Also, while the summer months are hot, they are also the windiest, providing some relief from the heat.
The best time to visit Glastonbury
Judging by climate characteristics, the best time to visit
Glastonbury would arguably be between late spring and early fall. During the months of
May to
September, the weather is moderately warm to hot, with temperatures ranging from 56.7°F (13.7°C) to 81°F (27.2°C). Moreover, this period witnesses abundant sunshine hours, from 8.4 hours in May to 10.4 hours in
August. Rainfall during these months is frequent yet not excessively heavy.
The worst time to visit Glastonbury
The coldest, and arguably the least pleasant time to be outdoors in
Glastonbury, is in winter.
December through
February see the lowest temperatures, with
January being the coldest with 21.2°F (-6°C). Additionally, these months record the highest snowfall, with February topping the chart at 4.45" (113mm). The lower sunshine hours, ranging from 4.8 to 5.1 hours, make the days feel shorter and colder.
Spring weather in Glastonbury
In
Glastonbury, spring starts with cooler temperatures and gradually gets warmer. The lowest temperature in
March is 29.5°F (-1.4°C) while by
May it rises to 49.5°F (9.7°C). Rainfall increases progressively from 2.6" (66mm) in March to 2.87" (73mm) in May. The weather becomes more appealing with longer daylight hours, from 12 hours in March to 14.5 hours in May and more sunshine as well, from 6.2 hours to 8.4 hours respectively.
Summer weather in Glastonbury
Summers in
Glastonbury are warm to hot, with temperatures ranging from 57°F (13.9°C) in
June to 63.7°F (17.6°C) in
July. Although July and
August are the hottest months, they are also the windiest which provides some respite. Rainfall is slightly heavier with monthly averages ranging from 2.6" (66mm) to 2.99" (76mm). The longer daylight hours (from 15.2 hours in June to 14.8 hours in July) ensure plenty of time to enjoy outdoor activities.
Autumn weather in Glastonbury
Temperatures start dropping during the autumn months, with values sliding from 55.6°F (13.1°C) in
September to 36°F (2.2°C) in
November. Rainfall takes a sharp turn from 1.93" (49mm) in September to 2.8" (71mm) in November. A decrease in daylight hours from 12.5 hours in September to 9.8 hours in November is noted. Sunshine hours also reduce, from 8.7 hours in September to 5.6 hours in November.
Winter weather in Glastonbury
Winter in
Glastonbury is characterized by low temperatures and remarkable snowfall. Temperatures can drop down to 21.2°F (-6°C) in
January, however, daylight hours start to increase gradually from 9.2 hours in
December to 10.6 hours by
February. Sunshine hours remain low ranging from 4.8 hours in December to 4.6 hours in February. The heaviest snowfall occurs in February with 4.45" (113mm).
Weather in January
Unpredictable could be the watchword in
January for
Glastonbury’s weather. Contrasted with
February, the conditions are slightly milder with the lowest temperatures reported between 21.2°F (-6°C) and 33.4°F (0.8°C). This month holds the potential for both sunshine and snowfall.
Weather in January »Weather in February
February carries over the winter vibe from
January, with noticeably guaranteed frosts. The month is characterised by the highest snowfall of 4.45" (113mm), often causing a glistening white blanket over
Glastonbury. The steadily increasing daylight hours hint towards the approach of Spring.
Weather in February » Weather in March
Emerging from
February,
Glastonbury experiences moderate increases in temperature during
March. The weather pattern transitions from the blank canvas of winter whites to the colourful awakenings of spring. Increased daylight hours favor outdoor activities.
Weather in March »
Weather in April
In
April,
Glastonbury transitions to full spring, characterized by a refreshing warmth and extended daylight hours. This increased daylight, between 39.9°F (4.4°C) to 56.7°F (13.7°C), elevates the number of sunny days. It is a time for landscapes to flourish and for residents to indulgence in outdoor activities.
Weather in April »Weather in May
May brings a decided shift to warmer conditions in
Glastonbury, with temperature and humidity levels on the rise. Radiant days become more frequent, underlining the city’s quintessential spring weather. The ample hours of daylight transform the city into a vibrant landscape, perfect for outdoor exploration.
Weather in May » Weather in June
June sets the stage for the arrival of summer with temperatures climbing noticeable from last month. With
Glastonbury basking in maximum daylight hours reaching up to 15.2 hours, it is the longest days of the year. The rising sunshine hours combined with an average temperature range make it ideal for spending time outdoors.
Weather in June »
Weather in July
July in
Glastonbury, CT is at the peak of its summer, both in terms of temperature and daylight hours. The highest temperature is recorded in the summer with an average hovering from 63.7°F (17.6°C) to 83.1°F (28.4°C), truly signifying it as the warmest month of the year.
Weather in July » Weather in August
In
August, as compared to
July,
Glastonbury experiences a minor drop in temperature and daylight hours. The city still resonates with summer fervor, aided by the persistent warmth. The humidity begins to decline gradually, making way for more tolerable heat levels.
Weather in August »Weather in September
September carries the transitional weather from Summer into Fall in
Glastonbury. The temperature starts to dip appreciatively from
August, experiencing the range of 55.6°F (13.1°C) to 73.4°F (23°C), indicating a shift to cooler days ahead.
Weather in September »
Weather in October
October in
Glastonbury witnesses the full bloom of Fall, with cooler temperatures and decreased daylight hours. Despite the reduction in temperature, the beauty of the Fall foliage colors becomes the town's main attraction. Longer stretches of overcast skies are complemented by the crisp fall air, hinting at the approaching winter.
Weather in October » Weather in November
November in
Glastonbury marks the shift to winter with a substantial decrease in temperature and sunlight. As the leftover colors of fall fade away, temperatures dip markedly between 36°F (2.2°C) and 48.9°F (9.4°C). The shortened daylight hours and a gradual decrease in relative humidity become evident.
Weather in November » Weather in December
December brings the full onset of Winter in
Glastonbury, with noticeably shorter days and colder temperatures. With temperatures that range from 28.4°F (-2°C) to 39°F (3.9°C) combined with a noticeable increase in snowfall at 2.83" (72mm), the winter wonderland aesthetic comes to life in Glastonbury.
Weather in December »