Climate and monthly weather forecastSunbury, PA
Climate and monthly weather forecast
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 »Updated: Jun 4, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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).
Throughout the year, there are 133.4 rainfall days, and 13.15" (334mm) of precipitation is accumulated.
Months with snowfall are January through May, November and December.
In Sunbury, during the entire year, snow falls for 32.1 days and aggregates up to 4.76" (121mm) of snow.
January and February, with an average of 4.2h of sunshine, are months with the least sunshine.
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2.
The most humid month is February, with an average relative humidity of 82%.
February is the month with the most snowfall. Snow falls for 9.2 days and accumulates 1.46" (37mm) of snow.
March and April, with an average relative humidity of 76%, are the least humid months in Sunbury.
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.
In Sunbury, snow does not fall in June through October.
June has the longest days of the year, with an average of 15h and 6min of daylight.
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).
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.
The month with the most sunshine is July, with an average of 10.4h of sunshine.
The month with the highest UV index is July, with an average maximum UV index of 6.
The month with the least rainfall is September, when the rain falls for 9.2 days and typically collects 0.75" (19mm) of precipitation.
With an average of 9h and 18min of daylight, December has the shortest days of the year.
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 in January:
30.09"Hg - Average pressure in February:
30.06"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.98"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
29.94"Hg
- Average pressure in July:
29.98"Hg - Average pressure in August:
30"Hg - Average pressure in September:
30.07"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.13"Hg - Average pressure in December:
30.1"Hg
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 in January:
7.5mph - Average wind speed in February:
7.5mph - Average wind speed in March:
7.8mph - Average wind speed in April:
7.9mph - Average wind speed in May:
6.2mph - Average wind speed in June:
5.7mph
- Average wind speed in July:
4.7mph - Average wind speed in August:
4.6mph - Average wind speed in September:
5.2mph - Average wind speed in October:
6.3mph - Average wind speed in November:
6.6mph - Average wind speed in December:
7.1mph
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
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 in January:
0.87" - Average rainfall in February:
0.83" - Average rainfall in March:
0.98" - Average rainfall in April:
1.38" - Average rainfall in May:
1.42" - Average rainfall in June:
1.34"
- Average rainfall in July:
1.65" - Average rainfall in August:
1.14" - Average rainfall in September:
0.75" - Average rainfall in October:
1.06" - Average rainfall in November:
0.87" - Average rainfall in December:
0.87"
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 in January:
7.7 days - Average rainfall days in February:
8.3 days - Average rainfall days in March:
11.1 days - Average rainfall days in April:
14.6 days - Average rainfall days in May:
14.7 days - Average rainfall days in June:
12.8 days
- Average rainfall days in July:
13.8 days - Average rainfall days in August:
12.3 days - Average rainfall days in September:
9.2 days - Average rainfall days in October:
10.9 days - Average rainfall days in November:
8.6 days - Average rainfall days in December:
9.4 days
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 in January:
1.38" - Average snowfall in February:
1.46" - Average snowfall in March:
0.75" - Average snowfall in April:
0.08" - Average snowfall in May:
0.04" - Average snowfall in June:
0"
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 in January:
9.3 days - Average snowfall days in February:
9.2 days - Average snowfall days in March:
4.3 days - Average snowfall days in April:
0.8 days - Average snowfall days in May:
0.2 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.1 days - Average snowfall days in November:
2.1 days - Average snowfall days in December:
6.1 days
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 in January:
9h and 36min - Average daylight in February:
10h and 42min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 18min - Average daylight in May:
14h and 30min - Average daylight in June:
15h and 6min
- Average daylight in July:
14h and 48min - Average daylight in August:
13h and 48min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 54min - Average daylight in December:
9h and 18min
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).
- Average sunshine in January:
4h and 12min - Average sunshine in February:
4h and 12min - Average sunshine in March:
6h and 18min - Average sunshine in April:
8h and 6min - Average sunshine in May:
8h and 24min - Average sunshine in June:
9h and 54min
- Average sunshine in July:
10h and 24min - Average sunshine in August:
10h and 6min - Average sunshine in September:
8h and 48min - Average sunshine in October:
5h and 18min - Average sunshine in November:
5h and 18min - Average sunshine in December:
4h and 24min
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 in January:
16.9 days - Average sunshine days in February:
14.3 days - Average sunshine days in March:
15.6 days - Average sunshine days in April:
13.4 days - Average sunshine days in May:
13.7 days - Average sunshine days in June:
14.5 days
- Average sunshine days in July:
14.6 days - Average sunshine days in August:
15.8 days - Average sunshine days in September:
18.6 days - Average sunshine days in October:
17.5 days - Average sunshine days in November:
19.4 days - Average sunshine days in December:
17.8 days
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
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 cloud cover
Sunbury, PA
The months with the most cloud cover are February and December (Cloud cover 54).
The month with the least cloud cover is July (Cloud cover 32).
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).
