The climate of Johnstown
Johnstown,
Pennsylvania is in the Cfb zone according to the Köppen climate classification, suggesting a marine west coast climate with warm summers. Nestled in the northeastern United States, Johnstown experiences a broad range of weather patterns throughout the year.
Monthly average temperatures fluctuate from a chilling low of 18.9°F (-7.3°C) in
January to a warm high of 80.2°F (26.8°C) in
July. The relative humidity hovers between 78% to 87% all year round, giving the air a consistent sense of moisture. Average rainfall varies each month, reaching its peak at 2.56" (65mm) in
May and dropping to its lowest of 1.1" (28mm) in
November.
Johnstown's climate includes sporadic snowfall, with January and
February seeing averages of 3.98" (101mm) and 4.09" (104mm) respectively while zero inches fall from
June to
September. The average number of snowfall days ranges from zero in the summer months to 12 days in January. Daylight hours are longer in the summer, reaching up to 15 hours in June, and shorter in winter, dipping to 9.3 hours in
December.
The best time to visit Johnstown
The optimal time to visit
Johnstown resides in the warm, balmy months of
June through
August, when average high temperatures are between 72.1°F (22.3°C) to 80.2°F (26.8°C). The bright sun shines for up to 15 hours a day in June, offering ample time to explore the city's attractions. The climatic conditions are favorable for outdoor activities. Rainfall is slightly lesser in these months with averages between 1.69" (43mm) to 2.2" (56mm), making it the ideal time for outdoorsy tourists.
The worst time to visit Johnstown
The months of
January and
February can be inhospitable for visitors due to the extreme cold and consistent snowfall. Average low temperatures can plummet to 18.9°F (-7.3°C) and 21.6°F (-5.8°C) respectively in these months and snowfall amounts to more than 4" (102mm). The city witnesses an average of 12 snowfall days in January, leading to often slippery and icy conditions.
Spring weather in Johnstown
Spring invigorates
Johnstown starting from
March when the average high temperatures range from 44.2°F (6.8°C) to 68°F (20°C) and the low temperatures are between 28.8°F (-1.8°C) to 48.7°F (9.3°C). This season brings increased rainfall with an average of 2.56" (65mm) in
May. Increasing daylight hours hinting at summer's arrival contribute to extended outdoor activities.
Summer weather in Johnstown
Summer in
Johnstown is comfortably warm with an average high temperature reaching its peak at 80.2°F (26.8°C) in
July. The average low temperatures remain in the pleasing range of 55°F (12.8°C) to 58.8°F (14.9°C). Ample sunshine for a significant 14.4 to 15 hours a day in
June, and marginally lesser on the following summer months allow sunshiny outdoor enjoyment.
Autumn weather in Johnstown
Autumn sees a substantial drop in temperatures where the average highs and lows vary from 72.1°F (22.3°C) to 46.6°F (8.1°C) and 52.7°F (11.5°C) to 32°F (0°C) respectively. Average rainfall in this season ranges from 1.46" (37mm) to 1.73" (44mm), making it relatively drier. It is the season when the leaves of deciduous trees change colors adding a vibrant hue to the cityscape.
Winter weather in Johnstown
Winter brings in a wave of cold as average high temperatures slide to a range of 30.7°F (-0.7°C) to 46.6°F (8.1°C) and the lows chill down between 18.9°F (-7.3°C) to 32°F (0°C).
January and
February see the most snowfall, creating a wintry white landscape. However, this also means that the sky remains overcast for most part of the day with cloud coverage of 67% to 72%. Winter's end in February is marked by an approximate 4" (102mm) of snowfall.
Weather in January
The chilly weather of
Johnstown,
Pennsylvania makes a strong appearance in
January, with frequent snowfall making the landscape a winter wonderland. These conditions lead to lower visibility, demanding caution while driving. The relative humidity increases, paving the way for a typical wintry ambience alongside shorter daylight hours.
Weather in January »Weather in February
While
February can still form a part of the harsh winter cherry in
Johnstown,
Pennsylvania, residents experience a slight increase in temperature and daylight hours. The snowfall decreases compared to the previous month, yet it is still an essential characteristic of the weather.
Weather in February »Weather in March
As
March arrives, the city of
Johnstown,
Pennsylvania welcomes the first signs of the spring season. The plots start to transition from a snowy exterior to patches of green. The sun starts making regular appearances, resulting in increased daylight hours, and a corresponding rise in temperature.
Weather in March »
Weather in April
For those waiting for winter to end in
Johnstown,
Pennsylvania,
April offers a glimmer of hope. Moderate rainfall indicates a shift from snowy to rainy weather, indicating the arrival of spring. Changes in weather might give rise to unpredictable weather conditions causing fluctuations in pressure.
Weather in April »Weather in May
The blossoms of
May in
Johnstown,
Pennsylvania truly signal that spring is here. The city experiences longer days and more sunshine hours, conducive for daylight saving activities. The month sees an increased amount of rainfall compared to previous months, inducing a fresh appeal to the environment.
Weather in May »Weather in June
The residents of
Johnstown,
Pennsylvania get to enjoy warm days of early summer in
June. The environment gets a bit dryer, offering comfortable humidity levels for outdoor activities. The sunshine lights up the surroundings for a longer duration converging with the longest days of the year.
Weather in June »
Weather in July
July in
Johnstown,
Pennsylvania signifies the highest reaches of summer as sweltering heat prevails through the day. The rain provides respite from soaring temperatures and makes it an ideal time to explore the region's natural beauty.
Weather in July » Weather in August
Maintaining the rhythm of the previous month,
August in
Johnstown,
Pennsylvania keeps the warmth of summer alive. The hours of daylight start declining, yet the brightness of the sun persists for a significant part of the day. Combined with decreased wind speed, the summer weather reaches a plateau.
Weather in August »Weather in September
As
Johnstown,
Pennsylvania slips into autumn in
September, the hours of daylight and temperatures see a gradual reduction. The arrival of autumn is marked with foliage beginning to turn different hues. Rainfall pairs up with these conditions, creating a picturesque landscape.
Weather in September »
Weather in October
Residents of
Johnstown,
Pennsylvania observe autumn proceeding in full swing in
October. From delightful autumnal colors to moderate temperatures, the characteristics of this season are at their peak. Rainfall is seen frequently, providing nourishment to the vivid foliage.
Weather in October »Weather in November
On entering
November,
Johnstown,
Pennsylvania prepares to bid adieu to the fall. The weather gets brisk and cold as temperatures fall further. The shorter days and longer nights give a glimpse of the approaching winter. Unsurprisingly, the mercury takes a plunge down to 32°F (0°C).
Weather in November »Weather in December
Although less extreme than its consecutive months,
December in
Johnstown,
Pennsylvania does not fall short in terms of its wintry essence. The cold wind, low temperatures, and short days define a typical winter environment. A minor detail not to overlook is the increased percentage of humidity towards the end of the year.
Weather in December »