Climate and monthly weather forecast
Sunbury, PA

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Weather in January

January, the same as December, is another cold winter month in Sunbury, Pennsylvania, with an average temperature ranging between min 20.1°F (-6.6°C) and max 32.2°F (0.1°C). Sunbury witnesses the coldest weather in January, with temperatures averaging a high of 32.2°F (0.1°C) and a low of 20.1°F (-6.6°C). Weather in January »

Weather in February

February, the last month of the winter in Sunbury, is also an icy month, with an average temperature fluctuating between 22.3°F (-5.4°C) and 36.7°F (2.6°C). At the onset of February, Sunbury records an average high-temperature of a still cold 36.7°F (2.6°C), showing little deviation from the preceding month. Weather in February »

Weather in March

March, the first month of the spring in Sunbury, is a chilly month, with an average temperature fluctuating between 46°F (7.8°C) and 29.7°F (-1.3°C). The start of March brings a shift in the average high-temperature, increasing from February's wintry 36.7°F (2.6°C) to a frosty 46°F (7.8°C). Weather in March »

Weather in April

April in Sunbury, Pennsylvania, is a moderate spring month, with an average temperature fluctuating between 58.1°F (14.5°C) and 39.9°F (4.4°C). The shift into April is accompanied by a temperature increase, with the average high-temperature rising from a frosty 46°F (7.8°C) in March to a mild 58.1°F (14.5°C). Weather in April »

Weather in May

May, the last month of the spring in Sunbury, is an agreeable month, with an average temperature ranging between max 69.4°F (20.8°C) and min 49.3°F (9.6°C). Sunbury's transition into May is marked by a temperature shift, moving from a refreshing 58.1°F (14.5°C) in April to a pleasant 69.4°F (20.8°C). Weather in May »

Weather in June

The first month of the summer, June, is a moderately hot month in Sunbury, Pennsylvania, with an average temperature ranging between max 76.6°F (24.8°C) and min 56.5°F (13.6°C). Entering June, Sunbury notices a subtle temperature elevation, with the average high-temperature advancing from May's agreeable 69.4°F (20.8°C) to a moderately hot 76.6°F (24.8°C). Weather in June »

Weather in July

July, the same as June, is a moderately hot summer month in Sunbury, Pennsylvania, with an average temperature varying between 82.2°F (27.9°C) and 61.2°F (16.2°C). July is the month when Sunbury experiences its warmest temperatures, averaging a high of 82.2°F (27.9°C) and a low of 61.2°F (16.2°C). In July, the heat index is estimated at a tropical 89.6°F (32°C). Weather in July »

Weather in August

August, the last month of the summer in Sunbury, is also a moderately hot month, with an average temperature ranging between min 59.4°F (15.2°C) and max 80.2°F (26.8°C). August records an average high-temperature of a still moderately hot 80.2°F (26.8°C), indicating a minor variation from the preceding month. Weather in August »

Weather in September

September, the first month of the autumn in Sunbury, is still a pleasant month, with an average temperature ranging between max 73.2°F (22.9°C) and min 53.4°F (11.9°C). A mild shift in the average high-temperature occurs in September, reducing from a warm 80.2°F (26.8°C) in August to a pleasant 73.2°F (22.9°C). Weather in September »

Weather in October

October, like September, in Sunbury, Pennsylvania, is another comfortable autumn month, with temperature in the range of an average low of 44.2°F (6.8°C) and an average high of 61.2°F (16.2°C). Sunbury observes a minor decrease in the average high-temperature with the arrival of October, falling from September's agreeable 73.2°F (22.9°C) to an enjoyable 61.2°F (16.2°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a frosty month in Sunbury, Pennsylvania, with an average temperature varying between 33.8°F (1°C) and 48.2°F (9°C). During the transition into November, Sunbury observes a decrease in the average high-temperature, falling from a comfortable 61.2°F (16.2°C) in October to a chilly 48.2°F (9°C). Weather in November »

Weather in December

December, the first month of the winter in Sunbury, is still a cold month, with an average temperature varying between 38.8°F (3.8°C) and 28°F (-2.2°C). Sunbury's progression into December includes a drop in the average high-temperature, from a frosty 48.2°F (9°C) in November to an icy 38.8°F (3.8°C). Weather in December »

Frequently asked questions

What are the coldest months?

January stands out as Sunbury's coldest month, with an average high-temperature of 32.2°F (0.1°C) and a low-temperature of 20.1°F (-6.6°C).

How much does it rain?

Throughout the year, there are 133.4 rainfall days, and 13.15" (334mm) of precipitation is accumulated.

When does it snow?

Months with snowfall are January through May, November and December.

How much does it snow in Sunbury?

In Sunbury, during the entire year, snow falls for 32.1 days and aggregates up to 4.76" (121mm) of snow.

What are the months with the least sunshine?

January and February, with an average of 4.2h of sunshine, are months with the least sunshine.

What is the month with the lowest UV index?

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2.

What is the most humid month in Sunbury?

The most humid month is February, with an average relative humidity of 82%.

When does it snow the most in Sunbury?

February is the month with the most snowfall. Snow falls for 9.2 days and accumulates 1.46" (37mm) of snow.

What are the least humid months?

March and April, with an average relative humidity of 76%, are the least humid months in Sunbury.

When is Daylight Saving Time (DST)?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.

When it does not snow?

In Sunbury, snow does not fall in June through October.

When are the longest days?

June has the longest days of the year, with an average of 15h and 6min of daylight.

What month is the hottest?

In Sunbury, July is the warmest month, with temperatures averaging a high of 82.2°F (27.9°C) and a low of 61.2°F (16.2°C).

What is the rainiest month?

The month with the most rainfall is July, when the rain falls for 13.8 days and typically aggregates up to 1.65" (42mm) of precipitation.

What month has the most sunshine?

The month with the most sunshine is July, with an average of 10.4h of sunshine.

What is the month with the highest UV index?

The month with the highest UV index is July, with an average maximum UV index of 6.

What is the driest month?

The month with the least rainfall is September, when the rain falls for 9.2 days and typically collects 0.75" (19mm) of precipitation.

What is the month with the shortest days?

With an average of 9h and 18min of daylight, December has the shortest days of the year.

Average temperature
Sunbury, PA

Average temperature - Sunbury, PA

The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (32.2°F).

The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).

Average pressure
Sunbury, PA

Average pressure - Sunbury, PA

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed
Sunbury, PA

Average wind speed - Sunbury, PA

The windiest month (with the highest average wind speed) is April (7.9mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).

Average humidity
Sunbury, PA

Average humidity - Sunbury, PA

The month with the highest relative humidity is February (82%).
The months with the lowest relative humidity are March and April (76%).

Average rainfall
Sunbury, PA

Average rainfall - Sunbury, PA

The wettest month (with the highest rainfall) is July (1.65").
The driest month (with the least rainfall) is September (0.75").

Average rainfall days
Sunbury, PA

Average rainfall days - Sunbury, PA

The month with the highest number of rainy days is May (14.7 days).
The month with the least rainy days is January (7.7 days).

Average snowfall
Sunbury, PA

Average snowfall - Sunbury, PA

The month with the highest snowfall is February (1.46").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days
Sunbury, PA

Average snowfall days - Sunbury, PA

The month with the highest number of snowfall days is January (9.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine
Sunbury, PA

Average daylight / Average sunshine - Sunbury, PA

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 12min).

Average sunshine days
Sunbury, PA

Average sunshine days - Sunbury, PA

The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is April (13.4 days).

Average UV index
Sunbury, PA

Average UV index - Sunbury, PA

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average visibility
Sunbury, PA

Average visibility - Sunbury, PA

The months with the highest visibility are March, April, November and December (6mi).
The months with the lowest visibility are January, February, May, June, July, August, September and October (5mi).

Sunbury, Pennsylvania, USA

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