Climate and monthly weather forecast
Schaefferstown, PA

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Weather in January

January, like December, in Schaefferstown, Pennsylvania, is a wintry winter month, with an average temperature varying between 21.7°F (-5.7°C) and 33.6°F (0.9°C). Schaefferstown witnesses the coldest weather in January, with temperatures averaging a high of 33.6°F (0.9°C) and a low of 21.7°F (-5.7°C). Weather in January »

Weather in February

The last month of the winter, February, is also a wintry month in Schaefferstown, Pennsylvania, with an average temperature ranging between min 23.5°F (-4.7°C) and max 37.8°F (3.2°C). February experiences an average high-temperature of a still cold 37.8°F (3.2°C), barely different from January's 33.6°F (0.9°C). Weather in February »

Weather in March

The first month of the spring, March, is a chilly month in Schaefferstown, Pennsylvania, with an average temperature fluctuating between 31.1°F (-0.5°C) and 46.9°F (8.3°C). March shows a rise in the average high-temperature, moving from February's cold 37.8°F (3.2°C) to a chilly 46.9°F (8.3°C). Weather in March »

Weather in April

April in Schaefferstown, Pennsylvania, is a mild spring month, with an average temperature fluctuating between 41.2°F (5.1°C) and 59°F (15°C). April brings a temperature increase, with average high-temperatures moving from March's chilly 46.9°F (8.3°C) to a refreshing 59°F (15°C). Weather in April »

Weather in May

May, the last month of the spring in Schaefferstown, is a pleasant month, with an average temperature fluctuating between 68.9°F (20.5°C) and 50.9°F (10.5°C). As April transitions into May, Schaefferstown sees a rise in the average high-temperature, moving from a refreshing 59°F (15°C) to an agreeable 68.9°F (20.5°C). Weather in May »

Weather in June

June, the first month of the summer in Schaefferstown, is a moderately hot month, with an average temperature ranging between max 76.6°F (24.8°C) and min 58.6°F (14.8°C). The beginning of June signals a minor rise in the average high-temperature, moving from an agreeable 68.9°F (20.5°C) in May to a moderately hot 76.6°F (24.8°C). Weather in June »

Weather in July

July, the same as June, is another warm summer month in Schaefferstown, Pennsylvania, with temperature in the range of an average high of 82.2°F (27.9°C) and an average low of 63.3°F (17.4°C). The warmest period is July, when temperatures fluctuate between an average high of 82.2°F (27.9°C) and a low of 63.3°F (17.4°C). The average heat index in July is evaluated at a hot 89.6°F (32°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Schaefferstown, Pennsylvania, with an average temperature fluctuating between 79.9°F (26.6°C) and 61.5°F (16.4°C). The advent of August presents an average high-temperature of a still warm 79.9°F (26.6°C), maintaining a close correlation with the preceding month. Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Schaefferstown, Pennsylvania, with temperature in the range of an average high of 73.8°F (23.2°C) and an average low of 55.4°F (13°C). A subtle shift in Schaefferstown's weather is observed as August turns into September, with the average high temperature reducing from a moderately hot 79.9°F (26.6°C) to a still warm 73.8°F (23.2°C). Weather in September »

Weather in October

October, like September, in Schaefferstown, Pennsylvania, is another comfortable autumn month, with an average temperature ranging between max 61.7°F (16.5°C) and min 45.9°F (7.7°C). October's onset corresponds with a shift in the average high-temperature, moving from a moderately hot 73.8°F (23.2°C) in September to a refreshing 61.7°F (16.5°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a frosty month in Schaefferstown, Pennsylvania, with temperature in the range of an average low of 34.9°F (1.6°C) and an average high of 49.5°F (9.7°C). A moderate decline in the average high-temperature is seen during November, decreasing from an enjoyable 61.7°F (16.5°C) in October to a chilly 49.5°F (9.7°C). Weather in November »

Weather in December

December, the first month of the winter in Schaefferstown, is also an icy month, with temperature in the range of an average high of 40.5°F (4.7°C) and an average low of 29.3°F (-1.5°C). Transitioning from November to December involves a subtle drop in average high-temperatures, descending from a frosty 49.5°F (9.7°C) to an icy 40.5°F (4.7°C). Weather in December »
Updated: Jun 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the coldest?

January, with its high-temperature average of 33.6°F (0.9°C) and a low-temperature average of 21.7°F (-5.7°C), is the coldest month.

How many days does it rain?

Throughout the year, there are 168.8 rainfall days, and 33.27" (845mm) of precipitation is accumulated.

When does it snow?

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

How much does it snow?

Throughout the year, there are 29.6 snowfall days, and 15.59" (396mm) of snow is accumulated.

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 are the most humid months?

The months with the highest humidity are February, May and October, with an average relative humidity of 81%.

What is the month with the least sunshine?

The month with the least sunshine is February, with an average of 4.5h of sunshine.

What is the snowiest month?

March is the month with the most snowfall. Snow falls for 5.4 days and accumulates 4.49" (114mm) of snow.

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 least humid month?

With an average relative humidity of 76%, April is the least humid month.

When it does not snow?

In Schaefferstown, 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 0min of daylight.

When is the highest UV index?

With an average maximum UV index of 6, June is the month with the highest UV index.

What is the hottest time of year?

With average high temperatures of 82.2°F (27.9°C) and lows of 63.3°F (17.4°C), July is the warmest month.

What month has the most sunshine?

July has the most sunshine of the year, with an average of 10.4h of sunshine.

What is the wettest month?

The month with the most rainfall is August, when the rain falls for 16 days and typically aggregates up to 3.39" (86mm) of precipitation.

What is the driest month?

September is the month with the least rainfall. Rain falls for 13.2 days and accumulates 2.24" (57mm) of precipitation.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 24min of daylight.

Average temperature
Schaefferstown, PA

Average temperature - Schaefferstown, 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 (33.6°F).

The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).

Average pressure
Schaefferstown, PA

Average pressure - Schaefferstown, 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
Schaefferstown, PA

Average wind speed - Schaefferstown, PA

The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity
Schaefferstown, PA

Average humidity - Schaefferstown, PA

The months with the highest relative humidity are February, May and October (81%).
The month with the lowest relative humidity is April (76%).

Average rainfall
Schaefferstown, PA

Average rainfall - Schaefferstown, PA

The wettest month (with the highest rainfall) is August (3.39").
The driest month (with the least rainfall) is September (2.24").

Average rainfall days
Schaefferstown, PA

Average rainfall days - Schaefferstown, PA

The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is January (9.3 days).

Average snowfall
Schaefferstown, PA

Average snowfall - Schaefferstown, PA

The month with the highest snowfall is March (4.49").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days
Schaefferstown, PA

Average snowfall days - Schaefferstown, PA

The month with the highest number of snowfall days is January (9.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine
Schaefferstown, PA

Average daylight / Average sunshine - Schaefferstown, PA

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

Average sunshine days
Schaefferstown, PA

Average sunshine days - Schaefferstown, PA

The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is May (10.2 days).

Average UV index
Schaefferstown, PA

Average UV index - Schaefferstown, PA

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

Average visibility
Schaefferstown, PA

Average visibility - Schaefferstown, PA

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

Schaefferstown, Pennsylvania, USA

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