Climate and monthly weather forecast
Seneca, PA

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Weather in January

January, the same as December, in Seneca, Pennsylvania, is a freezing cold winter month, with an average temperature varying between 30°F (-1.1°C) and 17.8°F (-7.9°C). Seneca's coldest weather arrives in January, when temperatures average a high of 30°F (-1.1°C) and a low of 17.8°F (-7.9°C). Weather in January »

Weather in February

The last month of the winter, February, is a wintry month in Seneca, Pennsylvania, with an average temperature varying between 34°F (1.1°C) and 19.2°F (-7.1°C). As Seneca steps into February, the average high-temperature is measured at a cold 34°F (1.1°C), displaying minor differences from January's 30°F (-1.1°C). Weather in February »

Weather in March

The first month of the spring, March, is a chilly month in Seneca, Pennsylvania, with temperature in the range of an average low of 27.7°F (-2.4°C) and an average high of 43.5°F (6.4°C). Seneca sees a rise in temperature during March, with average high-temperatures transitioning from an icy 34°F (1.1°C) in February to a chilly 43.5°F (6.4°C). Weather in March »

Weather in April

April is a mild spring month in Seneca, Pennsylvania, with an average temperature varying between 56.1°F (13.4°C) and 37°F (2.8°C). April's arrival sees a rise in the average high-temperature, jumping from March's frosty 43.5°F (6.4°C) to a refreshing 56.1°F (13.4°C). Weather in April »

Weather in May

The last month of the spring, May, is an agreeable month in Seneca, Pennsylvania, with temperature in the range of an average high of 68.7°F (20.4°C) and an average low of 47.7°F (8.7°C). Seneca sees an increase in the average high-temperature with the arrival of May, moving from April's mild 56.1°F (13.4°C) to a pleasant 68.7°F (20.4°C). Weather in May »

Weather in June

June, the first month of the summer in Seneca, is a warm month, with temperature in the range of an average high of 75.6°F (24.2°C) and an average low of 54.7°F (12.6°C). As Seneca welcomes June, the average high-temperature displays a subtle shift, adjusting from an agreeable 68.7°F (20.4°C) in May to a moderately hot 75.6°F (24.2°C). Weather in June »

Weather in July

July, like June, in Seneca, Pennsylvania, is another warm summer month, with an average temperature ranging between min 58.8°F (14.9°C) and max 80.2°F (26.8°C). The temperatures reach their highest averages in July, with highs of 80.2°F (26.8°C) and lows of 58.8°F (14.9°C). Weather in July »

Weather in August

August, the last month of the summer in Seneca, is also a moderately hot month, with an average temperature fluctuating between 57°F (13.9°C) and 78.6°F (25.9°C). With the onset of August, the average high-temperature stands at a still moderately hot 78.6°F (25.9°C), closely aligned with July's 80.2°F (26.8°C). Weather in August »

Weather in September

September, the first month of the autumn in Seneca, is also an agreeable month, with an average temperature varying between 72.3°F (22.4°C) and 52.3°F (11.3°C). September brings a slight decrease in the average high-temperature, shifting from a warm 78.6°F (25.9°C) in August to an agreeable 72.3°F (22.4°C). Weather in September »

Weather in October

October, the same as September, in Seneca, Pennsylvania, is another refreshing autumn month, with an average temperature fluctuating between 58.8°F (14.9°C) and 43.2°F (6.2°C). Seneca's average high-temperature decreases in October, falling from a pleasant 72.3°F (22.4°C) in September to a mild 58.8°F (14.9°C). Weather in October »

Weather in November

The last month of the autumn, November, is another chilly month in Seneca, Pennsylvania, with an average temperature varying between 45.5°F (7.5°C) and 32°F (0°C). Onset of November witnesses a reduction in the average high-temperature, falling from a moderate 58.8°F (14.9°C) in October to a chilly 45.5°F (7.5°C). Weather in November »

Weather in December

The first month of the winter, December, is also an icy month in Seneca, Pennsylvania, with an average temperature ranging between max 36.1°F (2.3°C) and min 25.9°F (-3.4°C). A shift in the average high-temperature occurs in December, reducing from a frosty 45.5°F (7.5°C) in November to a cold 36.1°F (2.3°C). Weather in December »

Frequently asked questions

What month is the coldest in Seneca?

January, marked by an average high-temperature of 30°F (-1.1°C) and a low-temperature of 17.8°F (-7.9°C), is the coldest month.

How many days does it rain?

Throughout the year, there are 177.7 rainfall days, and 35.67" (906mm) of precipitation is accumulated.

When does it snow?

Months with snowfall are January through May, October through December.

What is the snowiest month?

January is the month with the most snowfall. Snow falls for 21.3 days and accumulates 10.83" (275mm) of snow.

How much does it snow?

Throughout the year, there are 86.5 snowfall days, and 43.07" (1094mm) of snow is accumulated.

What is the month with the least sunshine?

The month with the least sunshine is January, with an average of 2.3h of sunshine.

What is the most humid month in Seneca?

With an average relative humidity of 89%, February is the most humid month.

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.

What is the rainiest month?

April is the month with the most rainfall. Rain falls for 17.6 days and accumulates 3.9" (99mm) of precipitation.

What is the least humid month?

The least humid month in Seneca is May, with an average relative humidity of 78%.

When is the highest UV index?

May through August, with an average maximum UV index of 5, are months with the highest UV index.

When it does not snow?

In Seneca, snow does not fall in June through September.

When are the longest days?

The month with the longest days is June, with an average of 15h and 6min of daylight.

What are the warmest months?

July is the month when Seneca, Pennsylvania, experiences its warmest temperatures, averaging a high of 80.2°F (26.8°C) and a low of 58.8°F (14.9°C).

What is the month with the most sunshine?

The months with the most sunshine in Seneca are July and August, with an average of 9.7h of sunshine.

What is the driest month?

November is the month with the least rainfall. Rain falls for 11.9 days and accumulates 2.36" (60mm) of precipitation.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 12min of daylight.

What is the month with the lowest UV index?

The month with the lowest UV index is December, with an average maximum UV index of 1.

Average temperature
Seneca, PA

Average temperature - Seneca, PA

The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (30°F).

The month with the highest average low temperature is July (58.8°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).

Average pressure
Seneca, PA

Average pressure - Seneca, PA

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed
Seneca, PA

Average wind speed - Seneca, PA

The windiest month (with the highest average wind speed) is January (8.2mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).

Average rainfall
Seneca, PA

Average rainfall - Seneca, PA

The wettest month (with the highest rainfall) is April (3.9").
The driest month (with the least rainfall) is November (2.36").

Average rainfall days
Seneca, PA

Average rainfall days - Seneca, PA

The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is January (8.3 days).

Average snowfall
Seneca, PA

Average snowfall - Seneca, PA

The month with the highest snowfall is January (10.83").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days
Seneca, PA

Average snowfall days - Seneca, PA

The month with the highest number of snowfall days is January (21.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine
Seneca, PA

Average daylight / Average sunshine - Seneca, 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 12min).

The months with the most sunshine are July and August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 18min).

Average sunshine days
Seneca, PA

Average sunshine days - Seneca, PA

The month with the most sunshine days is September (12.1 days).
The month with the least sunshine days is February (5.6 days).

Average visibility
Seneca, PA

Average visibility - Seneca, PA

The months with the highest visibility are March, April, May, June, July, August, October and November (5mi).
The months with the lowest visibility are January, February, September and December (4mi).

Seneca, Pennsylvania, USA

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