Climate and monthly weather forecast
Lewistown, PA

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Weather in January

January, like December, in Lewistown, Pennsylvania, is a wintry winter month, with an average temperature varying between 32.9°F (0.5°C) and 19.9°F (-6.7°C). Lewistown records the coldest temperatures in January, averaging a high of 32.9°F (0.5°C) and a low of 19.9°F (-6.7°C). Weather in January »

Weather in February

The last month of the winter, February, is also an icy month in Lewistown, Pennsylvania, with an average temperature varying between 37°F (2.8°C) and 21.9°F (-5.6°C). The ushering in of February brings an average high-temperature of a still cold 37°F (2.8°C), closely mirroring the 32.9°F (0.5°C) of January. Weather in February »

Weather in March

March, the first month of the spring in Lewistown, is a chilly month, with an average temperature varying between 29.3°F (-1.5°C) and 46.6°F (8.1°C). March's onset brings a rise in the average high-temperature, moving from an icy 37°F (2.8°C) in February to a chilly 46.6°F (8.1°C). Weather in March »

Weather in April

April in Lewistown, Pennsylvania, is a moderate spring month, with an average temperature varying between 39.2°F (4°C) and 58.6°F (14.8°C). The transition from March to April brings a temperature rise, with average high-temperatures increasing from a frosty 46.6°F (8.1°C) to a mild 58.6°F (14.8°C). Weather in April »

Weather in May

May, the last month of the spring in Lewistown, is a pleasant month, with an average temperature ranging between min 49.3°F (9.6°C) and max 70.2°F (21.2°C). The shift from April to May is marked by an increase in the average high-temperature, moving from a mild 58.6°F (14.8°C) to an agreeable 70.2°F (21.2°C). Weather in May »

Weather in June

June, the first month of the summer in Lewistown, is a warm month, with temperature in the range of an average high of 78.1°F (25.6°C) and an average low of 55.8°F (13.2°C). June introduces a marginal temperature uplift, with average high-temperatures adjusting from May's agreeable 70.2°F (21.2°C) to a warm 78.1°F (25.6°C). Weather in June »

Weather in July

July, like June, in Lewistown, Pennsylvania, is a moderately hot summer month, with an average temperature varying between 60.8°F (16°C) and 83.5°F (28.6°C). In Lewistown, the peak average temperatures are observed in July, with a high of 83.5°F (28.6°C) and a low of 60.8°F (16°C). Throughout July, the heat index is appraised at a hot 91.4°F (33°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Lewistown, Pennsylvania, with temperature in the range of an average high of 81.1°F (27.3°C) and an average low of 58.5°F (14.7°C). Transitioning into August, Lewistown experiences an average high-temperature of a still moderately hot 81.1°F (27.3°C), marking a minor shift from the preceding month. Weather in August »

Weather in September

September, the first month of the autumn in Lewistown, is also a moderately hot month, with an average temperature fluctuating between 53.4°F (11.9°C) and 74.1°F (23.4°C). Lewistown in September experiences a gentle temperature dip, with average high-temperatures reducing from a warm 81.1°F (27.3°C) in August to a still moderately hot 74.1°F (23.4°C). Weather in September »

Weather in October

October, like September, in Lewistown, Pennsylvania, is another comfortable autumn month, with an average temperature varying between 61.5°F (16.4°C) and 43.7°F (6.5°C). In October, the average high-temperature decreases from a warm 74.1°F (23.4°C) in September to an enjoyable 61.5°F (16.4°C). Weather in October »

Weather in November

November, the last month of the autumn in Lewistown, is also a frosty month, with an average temperature ranging between min 32.9°F (0.5°C) and max 48.4°F (9.1°C). The arrival of November signals a shift in temperature, down from an enjoyable 61.5°F (16.4°C) in October to a frosty 48.4°F (9.1°C). Weather in November »

Weather in December

December, the first month of the winter in Lewistown, is still a cold month, with an average temperature ranging between max 39°F (3.9°C) and min 27.5°F (-2.5°C). As December arrives, Lewistown's weather displays a decrease in high-temperatures, transitioning from November's chilly 48.4°F (9.1°C) to a wintry 39°F (3.9°C). Weather in December »

Frequently asked questions

What are the coldest months in Lewistown?

January, marked by an average high-temperature of 32.9°F (0.5°C) and a low-temperature of 19.9°F (-6.7°C), is the coldest month.

What is the driest month?

The months with the least rainfall are January and November Rain falls for 9.2 days and accumulates 1.85" (47mm) of rain.

How much does it rain?

In Lewistown, during the entire year, the rain falls for 162 days and collects up to 28.86" (733mm) of precipitation.

When does it snow?

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

When does it snow the most?

January is the month with the most snowfall. Snow falls for 10.9 days and accumulates 4.49" (114mm) of snow.

How much does it snow?

Throughout the year, there are 35.2 snowfall days, and 16.42" (417mm) of snow is accumulated.

What is the month with the least sunshine?

The month with the least sunshine in Lewistown is January, with an average of 4h of sunshine.

What are the months 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?

With an average relative humidity of 82%, 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?

May is the month with the most rainfall in Lewistown. Rain falls for 19.1 days and accumulates 3.31" (84mm) of precipitation.

When it does not snow?

June through September are months without snowfall.

When are the longest days?

June has the longest days of the year, with an average of 15h and 0min of daylight.

What is the month with the highest UV index?

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

What is the warmest month?

In Lewistown, July registers the highest temperatures, averaging 83.5°F (28.6°C) at the peak and 60.8°F (16°C) at the lowest.

What is the least humid month?

The least humid month is July, with an average relative humidity of 75%.

What month has the most sunshine?

With an average of 10.3h of sunshine, July has the most sunshine of the year.

What is the month with the shortest days?

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

Average temperature
Lewistown, PA

Average temperature - Lewistown, PA

The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (32.9°F).

The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (19.9°F).

Average pressure
Lewistown, PA

Average pressure - Lewistown, PA

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed
Lewistown, PA

Average wind speed - Lewistown, PA

The windiest month (with the highest average wind speed) is January (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).

Average humidity
Lewistown, PA

Average humidity - Lewistown, PA

The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is July (75%).

Average rainfall
Lewistown, PA

Average rainfall - Lewistown, PA

The wettest month (with the highest rainfall) is May (3.31").
The driest months (with the least rainfall) are January and November (1.85").

Average rainfall days
Lewistown, PA

Average rainfall days - Lewistown, PA

The month with the highest number of rainy days is May (19.1 days).
The month with the least rainy days is February (8.8 days).

Average snowfall
Lewistown, PA

Average snowfall - Lewistown, PA

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

Average snowfall days
Lewistown, PA

Average snowfall days - Lewistown, PA

The month with the highest number of snowfall days is January (10.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine
Lewistown, PA

Average daylight / Average sunshine - Lewistown, 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 18min).

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days
Lewistown, PA

Average sunshine days - Lewistown, PA

The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is May (10.4 days).

Average UV index
Lewistown, PA

Average UV index - Lewistown, 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
Lewistown, PA

Average visibility - Lewistown, PA

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

Lewistown, Pennsylvania, USA

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