Climate and monthly weather forecast
Frederick, PA

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Weather in January

January, like December, in Frederick, Pennsylvania, is a wintry winter month, with an average temperature varying between 22.8°F (-5.1°C) and 35.2°F (1.8°C). January is the month that records the lowest temperatures, with averages ranging from a high of 35.2°F (1.8°C) to a low of 22.8°F (-5.1°C). Weather in January »

Weather in February

February, the last month of the winter in Frederick, is another cold month, with an average temperature ranging between min 25°F (-3.9°C) and max 38.8°F (3.8°C). Frederick's shift into February is marked by a subtle change to a still icy 38.8°F (3.8°C) from January's 35.2°F (1.8°C) in temperature. Weather in February »

Weather in March

March, the first month of the spring in Frederick, is a frosty month, with an average temperature fluctuating between 32°F (0°C) and 47.5°F (8.6°C). A subtle rise in the average high-temperature is observed during March, adjusting from a cold 38.8°F (3.8°C) in February to a frosty 47.5°F (8.6°C). Weather in March »

Weather in April

April is a mild spring month in Frederick, Pennsylvania, with an average temperature fluctuating between 60.1°F (15.6°C) and 42.1°F (5.6°C). With the onset of April, Frederick's average high-temperature sees a rise, moving from March's frosty 47.5°F (8.6°C) to a moderate 60.1°F (15.6°C). Weather in April »

Weather in May

The last month of the spring, May, is a pleasant month in Frederick, Pennsylvania, with an average temperature fluctuating between 70.7°F (21.5°C) and 52°F (11.1°C). Frederick's transition into May brings a rise in the average high-temperature, moving from a mild 60.1°F (15.6°C) in April to a pleasant 70.7°F (21.5°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Frederick, Pennsylvania, with temperature in the range of an average high of 78.8°F (26°C) and an average low of 59.5°F (15.3°C). June's onset witnesses a minor shift in the average high-temperature, moving from a pleasant 70.7°F (21.5°C) in May to a warm 78.8°F (26°C). Weather in June »

Weather in July

July, the same as June, is a moderately hot summer month in Frederick, Pennsylvania, with an average temperature ranging between min 65.3°F (18.5°C) and max 84.6°F (29.2°C). The warmest time of the year is July, with temperatures averaging a high of 84.6°F (29.2°C) and a low of 65.3°F (18.5°C). In July, the average heat index is estimated at a tropical 93.2°F (34°C). Weather in July »

Weather in August

August, the last month of the summer in Frederick, is also a moderately hot month, with an average temperature varying between 81.9°F (27.7°C) and 63.7°F (17.6°C). August's onset brings an average high-temperature of a still moderately hot 81.9°F (27.7°C), showing a minute difference from July's 84.6°F (29.2°C). Weather in August »

Weather in September

September, the first month of the autumn in Frederick, is also a moderately hot month, with an average temperature ranging between max 75.4°F (24.1°C) and min 57.2°F (14°C). With the arrival of September, Frederick experiences a modest decline in average high-temperatures, transitioning from 81.9°F (27.7°C) in August to a still moderately hot 75.4°F (24.1°C). Weather in September »

Weather in October

October, like September, in Frederick, Pennsylvania, is another refreshing autumn month, with an average temperature fluctuating between 63.1°F (17.3°C) and 47.3°F (8.5°C). The arrival of October corresponds with a reduction in the average high-temperature, down from September's moderately hot 75.4°F (24.1°C) to a comfortable 63.1°F (17.3°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a fresh month in Frederick, Pennsylvania, with an average temperature fluctuating between 50.9°F (10.5°C) and 36.5°F (2.5°C). A change in temperatures is noted as October gives way to November, with average highs reducing from a comfortable 63.1°F (17.3°C) to a fresh 50.9°F (10.5°C). Weather in November »

Weather in December

The first month of the winter, December, is also an icy month in Frederick, Pennsylvania, with an average temperature varying between 30.4°F (-0.9°C) and 41.5°F (5.3°C). Observing a mild shift, the average high-temperature during December reduces from November's fresh 50.9°F (10.5°C) to an icy 41.5°F (5.3°C). Weather in December »
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Frequently asked questions

What is the coldest month in Frederick?

The coldest month in Frederick is January, with an average high-temperature of 35.2°F (1.8°C) and an average low-temperature of 22.8°F (-5.1°C).

What is the driest month in Frederick?

January is the month with the least rainfall. Rain falls for 5.7 days and accumulates 0.87" (22mm) of precipitation.

How many days does it rain in Frederick?

In Frederick, Pennsylvania, during the entire year, the rain falls for 128.6 days and collects up to 15.16" (385mm) of precipitation.

When does it snow in Frederick?

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

How much does it snow in Frederick?

In Frederick, Pennsylvania, during the entire year, snow falls for 17 days and aggregates up to 5.43" (138mm) of snow.

What is the month with the lowest UV index in Frederick?

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

What is the most humid month in Frederick?

February is the most humid month in Frederick, Pennsylvania, with an average relative humidity of 81%.

What is the month with the least sunshine in Frederick?

February has the least sunshine of the year, with an average of 4.6h of sunshine.

When does it snow the most in Frederick?

The month with the most snowfall in Frederick is March, when snow falls for 3.8 days and typically aggregates up to 1.46" (37mm) of snow.

When is Daylight Saving Time (DST) in Frederick?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Frederick, Pennsylvania, 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 in Frederick?

The months with the lowest humidity in Frederick, Pennsylvania, are April and July, with an average relative humidity of 75%.

When is the highest UV index in Frederick?

The months with the highest UV index in Frederick, Pennsylvania, are May through August, with an average maximum UV index of 6.

When it does not snow in Frederick?

In Frederick, Pennsylvania, snow does not fall in June through October.

When are the longest days in Frederick?

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

What are the warmest months in Frederick?

July is the warmest month in Frederick, Pennsylvania, with an average high-temperature of 84.6°F (29.2°C) and an average low-temperature of 65.3°F (18.5°C).

What is the rainiest month in Frederick?

The month with the most rainfall in Frederick is July, when the rain falls for 15.7 days and typically aggregates up to 1.97" (50mm) of precipitation.

What month has the most sunshine in Frederick?

July has the most sunshine of the year in Frederick, Pennsylvania, with an average of 10.5h of sunshine.

What is the month with the shortest days in Frederick?

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

Average temperature
Frederick, PA

Average temperature - Frederick, PA

The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (35.2°F).

The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).

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Average pressure
Frederick, PA

Average pressure - Frederick, 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).

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Average wind speed
Frederick, PA

Average wind speed - Frederick, PA

The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5mph).

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Average humidity
Frederick, PA

Average humidity - Frederick, PA

The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are April and July (75%).

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Average rainfall
Frederick, PA

Average rainfall - Frederick, PA

The wettest month (with the highest rainfall) is July (1.97").
The driest month (with the least rainfall) is January (0.87").

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Average rainfall days
Frederick, PA

Average rainfall days - Frederick, PA

The month with the highest number of rainy days is July (15.7 days).
The month with the least rainy days is January (5.7 days).

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Average snowfall
Frederick, PA

Average snowfall - Frederick, PA

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

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Average snowfall days
Frederick, PA

Average snowfall days - Frederick, PA

The month with the highest number of snowfall days is February (5.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Frederick, PA

Average daylight / Average sunshine - Frederick, 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 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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Average sunshine days
Frederick, PA

Average sunshine days - Frederick, PA

The month with the most sunshine days is November (21.4 days).
The month with the least sunshine days is July (12.8 days).

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Average UV index
Frederick, PA

Average UV index - Frederick, PA

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

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Average visibility
Frederick, PA

Average visibility - Frederick, PA

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

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Frederick, Pennsylvania, USA

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