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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, like December, in Frederick, Pennsylvania, is another cold winter month, with an average temperature fluctuating between 22.8°F (-5.1°C) and 35.2°F (1.8°C). January, marked by an average high-temperature of 35.2°F (1.8°C) and a low-temperature of 22.8°F (-5.1°C), is the coldest month. Weather in January »
Weather in February
The last month of the winter, February, is another cold month in Frederick, Pennsylvania, with an average temperature varying between 38.8°F (3.8°C) and 25°F (-3.9°C). As January turns into February, the average high-temperatures rest at a still wintry 38.8°F (3.8°C), showing a minor variation from the prior month. Weather in February »
Weather in March
March, the first month of the spring in Frederick, is a frosty month, with temperature in the range of an average low of 32°F (0°C) and an average high of 47.5°F (8.6°C). With the beginning of March, Frederick's average high-temperature sees a minor increase, transitioning from an icy 38.8°F (3.8°C) in February to a frosty 47.5°F (8.6°C). Weather in March »
Weather in April
April in Frederick, Pennsylvania, is a refreshing spring month, with an average temperature ranging between min 42.1°F (5.6°C) and max 60.1°F (15.6°C). Noticing a change, the average high-temperature during April moves from March's chilly 47.5°F (8.6°C) to a moderate 60.1°F (15.6°C). Weather in April »
Weather in May
May, the last month of the spring in Frederick, is a pleasant month, with an average temperature ranging between min 52°F (11.1°C) and max 70.7°F (21.5°C). In Frederick, the average high-temperature in May increases from a refreshing 60.1°F (15.6°C) in April to an agreeable 70.7°F (21.5°C). Weather in May »
Weather in June
The first month of the summer, June, is a moderately hot month in Frederick, Pennsylvania, with an average temperature varying between 59.5°F (15.3°C) and 78.8°F (26°C). Frederick's weather in June presents a minor rise in the average high-temperature, moving from a pleasant 70.7°F (21.5°C) in May to a moderately hot 78.8°F (26°C). Weather in June »
Weather in July
July, like June, in Frederick, Pennsylvania, is a moderately hot summer month, with temperature in the range of an average high of 84.6°F (29.2°C) and an average low of 65.3°F (18.5°C). In Frederick, July is the month with the highest recorded average temperatures, measuring a high of 84.6°F (29.2°C) and a low of 65.3°F (18.5°C). In July, the heat index is evaluated at a hot 93.2°F (34°C). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Frederick, Pennsylvania, with an average temperature fluctuating between 63.7°F (17.6°C) and 81.9°F (27.7°C). With August's arrival, Frederick notes an average high-temperature of a still moderately hot 81.9°F (27.7°C), closely following the trend of the preceding month. Weather in August »
Weather in September
September, the first month of the autumn in Frederick, is still a warm month, with temperature in the range of an average low of 57.2°F (14°C) and an average high of 75.4°F (24.1°C). As September commences, the average high-temperature subtly reduces, 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, the same as September, is another enjoyable autumn month in Frederick, Pennsylvania, with an average temperature fluctuating between 47.3°F (8.5°C) and 63.1°F (17.3°C). October weather is marked by a drop in the average high-temperature, falling from a moderately hot 75.4°F (24.1°C) in September to a refreshing 63.1°F (17.3°C). Weather in October »
Weather in November
November, the last month of the autumn in Frederick, is another cool month, with an average temperature varying between 50.9°F (10.5°C) and 36.5°F (2.5°C). In Frederick, the beginning of November is marked by a lowered average high-temperature, shifting from October's 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 a wintry month in Frederick, Pennsylvania, with an average temperature ranging between min 30.4°F (-0.9°C) and max 41.5°F (5.3°C). With the beginning of December, the average high-temperature shows a decrease, transitioning from a fresh 50.9°F (10.5°C) in November to a cold 41.5°F (5.3°C). Weather in December »
Updated: Aug 19, 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
What part of the year is the coldest in Frederick?
January, on average, is the coldest month, registering a high temperature of 35.2°F (1.8°C) and a low of 22.8°F (-5.1°C).
What is the driest month?
January is the month with the least rainfall. Rain falls for 5.7 days and accumulates 0.87" (22mm) of precipitation.
How much does it rain?
Throughout the year, there are 128.6 rainfall days, and 15.16" (385mm) of precipitation is accumulated.
When does it snow?
Months with snowfall in Frederick are January through May, November and December.
How much does it snow?
Throughout the year, there are 17 snowfall days, and 5.43" (138mm) of snow is accumulated.
When is 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 in Frederick?
The most humid month is February, with an average relative humidity of 81%.
What is the month with the least sunshine?
February has the least sunshine of the year, with an average of 4.6h of sunshine.
What is the snowiest month?
March is the month with the most snowfall. Snow falls for 3.8 days and accumulates 1.46" (37mm) of snow.
When is Daylight Saving Time (DST)?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Frederick, 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 are the least humid months?
April and July, with an average relative humidity of 75%, are the least humid months.
What are the months with the highest UV index?
The months with the highest UV index are May through August, with an average maximum UV index of 6.
When it does not snow?
In Frederick, snow does not fall in June through October.
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 warmest month?
With average temperatures fluctuating between a high of 84.6°F (29.2°C) and a low of 65.3°F (18.5°C), July stands out as the warmest month.
What is the wettest month?
July is the month with the most rainfall. Rain falls for 15.7 days and accumulates 1.97" (50mm) of precipitation.
What month has the most sunshine?
The month with the most sunshine is July, with an average of 10.5h of sunshine.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 9h and 24min of daylight.
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).
Average pressure
Frederick, PA
- Average pressure in January:
30.09"Hg - Average pressure in February:
30.06"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.99"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
29.94"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.99"Hg - Average pressure in September:
30.06"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.12"Hg - Average pressure in December:
30.09"Hg
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
Frederick, PA
- Average wind speed in January:
7.9mph - Average wind speed in February:
7.8mph - Average wind speed in March:
8.1mph - Average wind speed in April:
8mph - Average wind speed in May:
6.3mph - Average wind speed in June:
5.9mph
- Average wind speed in July:
5.2mph - Average wind speed in August:
5mph - Average wind speed in September:
5.5mph - Average wind speed in October:
6.5mph - Average wind speed in November:
7mph - Average wind speed in December:
7.5mph
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).
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%).
Average rainfall
Frederick, PA
- Average rainfall in January:
0.87" - Average rainfall in February:
0.91" - Average rainfall in March:
1.18" - Average rainfall in April:
1.18" - Average rainfall in May:
1.38" - Average rainfall in June:
1.46"
- Average rainfall in July:
1.97" - Average rainfall in August:
1.81" - Average rainfall in September:
0.91" - Average rainfall in October:
1.14" - Average rainfall in November:
1.02" - Average rainfall in December:
1.34"
The wettest month (with the highest rainfall) is July (1.97").
The driest month (with the least rainfall) is January (0.87").
Average rainfall days
Frederick, PA
- Average rainfall days in January:
5.7 days - Average rainfall days in February:
6.8 days - Average rainfall days in March:
10.1 days - Average rainfall days in April:
11.6 days - Average rainfall days in May:
14 days - Average rainfall days in June:
14.3 days
- Average rainfall days in July:
15.7 days - Average rainfall days in August:
14.1 days - Average rainfall days in September:
11 days - Average rainfall days in October:
10.2 days - Average rainfall days in November:
7.1 days - Average rainfall days in December:
8 days
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).
Average snowfall
Frederick, PA
- Average snowfall in January:
1.06" - Average snowfall in February:
1.14" - Average snowfall in March:
1.46" - Average snowfall in April:
0.12" - Average snowfall in May:
0.16" - Average snowfall in June:
0"
The month with the highest snowfall is March (1.46").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days
Frederick, PA
- Average snowfall days in January:
4.8 days - Average snowfall days in February:
5.3 days - Average snowfall days in March:
3.8 days - Average snowfall days in April:
0.3 days - Average snowfall days in May:
0.1 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:
0.6 days - Average snowfall days in December:
2 days
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).
Average daylight / Average sunshine
Frederick, PA
- Average daylight in January:
9h and 4min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 2min - Average daylight in June:
15h and 0min
- Average daylight in July:
14h and 4min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 2min
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).
- Average sunshine in January:
4h and 4min - Average sunshine in February:
4h and 4min - Average sunshine in March:
6h and 2min - Average sunshine in April:
8h and 1min - Average sunshine in May:
8h and 2min - Average sunshine in June:
9h and 4min
- Average sunshine in July:
10h and 3min - Average sunshine in August:
10h and 0min - Average sunshine in September:
8h and 4min - Average sunshine in October:
5h and 2min - Average sunshine in November:
5h and 3min - Average sunshine in December:
4h and 5min
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).
Average sunshine days
Frederick, PA
- Average sunshine days in January:
20.7 days - Average sunshine days in February:
16.3 days - Average sunshine days in March:
16.6 days - Average sunshine days in April:
16.3 days - Average sunshine days in May:
14.8 days - Average sunshine days in June:
13.2 days
- Average sunshine days in July:
12.8 days - Average sunshine days in August:
14 days - Average sunshine days in September:
17.1 days - Average sunshine days in October:
18.9 days - Average sunshine days in November:
21.4 days - Average sunshine days in December:
20.1 days
The month with the most sunshine days is November (21.4 days).
The month with the least sunshine days is July (12.8 days).
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).
Average cloud cover
Frederick, PA
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 32).
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).
Frederick, Pennsylvania, USA
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