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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 Port Penn, Delaware, is a wintry winter month, with an average temperature ranging between max 38.7°F (3.7°C) and min 27°F (-2.8°C). January, recording an average high temperature of 38.7°F (3.7°C) and a low temperature of 27°F (-2.8°C), is Port Penn's coldest month. Weather in January »
Weather in February
February, the last month of the winter in Port Penn, is also an icy month, with an average temperature ranging between min 29.7°F (-1.3°C) and max 42.3°F (5.7°C). With the transition into February, Port Penn notes an average high-temperature of a still cold 42.3°F (5.7°C), closely resembling January. Weather in February »
Weather in March
March, the first month of the spring in Port Penn, is a fresh month, with an average temperature fluctuating between 35.8°F (2.1°C) and 50.2°F (10.1°C). As March sets, the average high-temperature shows a slight increase, moving up from a wintry 42.3°F (5.7°C) in February to a cool 50.2°F (10.1°C). Weather in March »
Weather in April
April is an enjoyable spring month in Port Penn, Delaware, with an average temperature fluctuating between 46°F (7.8°C) and 62.6°F (17°C). The average high-temperature increases in April, moving from a cool 50.2°F (10.1°C) in March to a comfortable 62.6°F (17°C). Weather in April »
Weather in May
May, the last month of the spring in Port Penn, is a pleasant month, with an average temperature fluctuating between 55.4°F (13°C) and 72.1°F (22.3°C). The shift into May is characterized by a rise in the average high-temperature, transitioning from April's comfortable 62.6°F (17°C) to a pleasant 72.1°F (22.3°C). Weather in May »
Weather in June
The first month of the summer, June, is a warm month in Port Penn, Delaware, with an average temperature ranging between max 80.2°F (26.8°C) and min 63.3°F (17.4°C). A gentle upsurge in temperatures occurs as May gives way to June, with average highs shifting from an agreeable 72.1°F (22.3°C) to a warm 80.2°F (26.8°C). Weather in June »
Weather in July
July, like June, in Port Penn, Delaware, is a moderately hot summer month, with temperature in the range of an average low of 68.5°F (20.3°C) and an average high of 85.1°F (29.5°C). July, with average temperatures reaching a high of 85.1°F (29.5°C) and a low of 68.5°F (20.3°C), is the warmest month. The average heat index in July is computed to be a sweltering 95°F (35°C). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Port Penn, Delaware, with temperature in the range of an average high of 83.5°F (28.6°C) and an average low of 67.3°F (19.6°C). August's advent presents an average high-temperature of a still moderately hot 83.5°F (28.6°C), indicating a slight variation from the conditions of the previous month. Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Port Penn, Delaware, with an average temperature fluctuating between 61.2°F (16.2°C) and 77°F (25°C). September marks a gentle change in average high-temperature, declining from August's warm 83.5°F (28.6°C) to a still moderately hot 77°F (25°C). Weather in September »
Weather in October
October, like September, in Port Penn, Delaware, is another refreshing autumn month, with an average temperature ranging between max 65.3°F (18.5°C) and min 51.8°F (11°C). October indicates a shift in the average high-temperature, from September's moderately hot 77°F (25°C) to a refreshing 65.3°F (18.5°C). Weather in October »
Weather in November
The last month of the autumn, November, is another cool month in Port Penn, Delaware, with an average temperature ranging between min 40.1°F (4.5°C) and max 53.8°F (12.1°C). November ushers in a slight temperature change, with average high-temperatures reducing from October's comfortable 65.3°F (18.5°C) to a fresh 53.8°F (12.1°C). Weather in November »
Weather in December
December, the first month of the winter in Port Penn, is also a frosty month, with an average temperature fluctuating between 45°F (7.2°C) and 34°F (1.1°C). A subtle shift in Port Penn's weather is observed as November turns into December, with the average high temperature reducing from a cool 53.8°F (12.1°C) to a frosty 45°F (7.2°C). Weather in December »
Updated: Aug 23, 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 is the coldest time of year?
Temperature records mark January as the coldest month, with highs averaging 38.7°F (3.7°C) and lows at 27°F (-2.8°C).
What is the driest month?
The month with the least rainfall is January, when the rain falls for 8.9 days and typically collects 1.77" (45mm) of precipitation.
How much does it rain?
In Port Penn, during the entire year, the rain falls for 147.7 days and collects up to 27.8" (706mm) of precipitation.
When does it snow?
January through May, November and December are months with snowfall.
How many days does it snow?
Throughout the year, there are 13.8 snowfall days, and 6.65" (169mm) of snow is accumulated.
When is the lowest UV index?
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index.
What is the month with the least sunshine?
With an average of 4.9h of sunshine, February has the least sunshine of the year.
When does it snow the most?
March is the month with the most snowfall in Port Penn. Snow falls for 2.6 days and accumulates 2.32" (59mm) 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?
The least humid month is April, with an average relative humidity of 72%.
What are the most humid months?
May, June, September and October, with an average relative humidity of 77%, are most humid months.
What is the month with the highest UV index in Port Penn?
May through August, with an average maximum UV index of 6, are months with the highest UV index in Port Penn.
When it does not snow?
June through October are months without snowfall.
When are the longest days in Port Penn?
June has the longest days of the year, with an average of 14h and 54min of daylight.
What are the warmest months?
In Port Penn, the average temperatures in July are the highest, with a peak at 85.1°F (29.5°C) and a low of 68.5°F (20.3°C).
What month has the most sunshine?
The month with the most sunshine is July, with an average of 10.7h of sunshine.
What is the rainiest month?
The month with the most rainfall is August, when the rain falls for 15 days and typically aggregates up to 3.23" (82mm) 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
Port Penn, DE
The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is January (38.7°F).
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (27°F).
Average pressure
Port Penn, DE
- 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:
30.05"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.12"Hg - Average pressure in December:
30.1"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
Port Penn, DE
- Average wind speed in January:
8.8mph - Average wind speed in February:
8.9mph - Average wind speed in March:
8.9mph - Average wind speed in April:
8.9mph - Average wind speed in May:
7.2mph - Average wind speed in June:
6.7mph
- Average wind speed in July:
5.8mph - Average wind speed in August:
5.7mph - Average wind speed in September:
6.2mph - Average wind speed in October:
7.6mph - Average wind speed in November:
8mph - Average wind speed in December:
8.1mph
The windiest months (with the highest average wind speed) are February, March and April (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity
Port Penn, DE
The months with the highest relative humidity are May, June, September and October (77%).
The month with the lowest relative humidity is April (72%).
Average rainfall
Port Penn, DE
- Average rainfall in January:
1.77" - Average rainfall in February:
2.05" - Average rainfall in March:
2.4" - Average rainfall in April:
2.17" - Average rainfall in May:
2.48" - Average rainfall in June:
2.32"
- Average rainfall in July:
2.83" - Average rainfall in August:
3.23" - Average rainfall in September:
1.85" - Average rainfall in October:
2.17" - Average rainfall in November:
1.85" - Average rainfall in December:
2.68"
The wettest month (with the highest rainfall) is August (3.23").
The driest month (with the least rainfall) is January (1.77").
Average rainfall days
Port Penn, DE
- Average rainfall days in January:
8.9 days - Average rainfall days in February:
9.3 days - Average rainfall days in March:
12.7 days - Average rainfall days in April:
13.5 days - Average rainfall days in May:
16.7 days - Average rainfall days in June:
14.3 days
- Average rainfall days in July:
16.5 days - Average rainfall days in August:
15 days - Average rainfall days in September:
11.9 days - Average rainfall days in October:
11.1 days - Average rainfall days in November:
8 days - Average rainfall days in December:
9.8 days
The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is November (8 days).
Average snowfall
Port Penn, DE
- Average snowfall in January:
1.81" - Average snowfall in February:
1.5" - Average snowfall in March:
2.32" - Average snowfall in April:
0.08" - Average snowfall in May:
0.12" - Average snowfall in June:
0"
The month with the highest snowfall is March (2.32").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days
Port Penn, DE
- Average snowfall days in January:
4.2 days - Average snowfall days in February:
4 days - Average snowfall days in March:
2.6 days - Average snowfall days in April:
0.2 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 days - Average snowfall days in November:
0.4 days - Average snowfall days in December:
2.3 days
The month with the highest number of snowfall days is January (4.2 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight / Average sunshine
Port Penn, DE
- Average daylight in January:
9h and 5min - 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:
14h and 5min
- 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: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in January:
5h and 1min - Average sunshine in February:
4h and 5min - Average sunshine in March:
6h and 2min - Average sunshine in April:
8h and 3min - Average sunshine in May:
8h and 4min - Average sunshine in June:
10h and 1min
- Average sunshine in July:
10h and 4min - Average sunshine in August:
10h and 1min - Average sunshine in September:
9h and 1min - Average sunshine in October:
5h and 4min - Average sunshine in November:
5h and 4min - Average sunshine in December:
5h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days
Port Penn, DE
- Average sunshine days in January:
18.7 days - Average sunshine days in February:
15.3 days - Average sunshine days in March:
16 days - Average sunshine days in April:
14.3 days - Average sunshine days in May:
11.8 days - Average sunshine days in June:
13.3 days
- Average sunshine days in July:
11.8 days - Average sunshine days in August:
13.6 days - Average sunshine days in September:
15.8 days - Average sunshine days in October:
18.5 days - Average sunshine days in November:
20.6 days - Average sunshine days in December:
18.5 days
The month with the most sunshine days is November (20.6 days).
The months with the least sunshine days are May and July (11.8 days).
Average UV index
Port Penn, DE
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 and December (UV index 2).
Average cloud cover
Port Penn, DE
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility
Port Penn, DE
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Port Penn, Delaware, USA
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