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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 Rockland, Delaware, is an icy winter month, with an average temperature varying between 37°F (2.8°C) and 25.3°F (-3.7°C). The coldest period tends to be January, when average temperatures fluctuate between a high of 37°F (2.8°C) and a low of 25.3°F (-3.7°C). Weather in January »
Weather in February
The last month of the winter, February, is also an icy month in Rockland, Delaware, with an average temperature fluctuating between 27.7°F (-2.4°C) and 40.8°F (4.9°C). Stepping into February, Rockland records an average high-temperature of a still cold 40.8°F (4.9°C), almost consistent with January. Weather in February »
Weather in March
The first month of the spring, March, is a chilly month in Rockland, Delaware, with temperature in the range of an average low of 34.7°F (1.5°C) and an average high of 49.3°F (9.6°C). Rockland's weather in March shows a minor rise in the average high-temperature, moving slightly up from February's wintry 40.8°F (4.9°C) to a frosty 49.3°F (9.6°C). Weather in March »
Weather in April
April is a refreshing spring month in Rockland, Delaware, with an average temperature varying between 44.6°F (7°C) and 61.3°F (16.3°C). A shift in the average high-temperature is noticeable in April, changing from a chilly 49.3°F (9.6°C) in March to a comfortable 61.3°F (16.3°C). Weather in April »
Weather in May
The last month of the spring, May, is a pleasant month in Rockland, Delaware, with temperature in the range of an average low of 54.5°F (12.5°C) and an average high of 71.6°F (22°C). Rockland experiences a temperature shift with the start of May, with average high-temperatures moving from a refreshing 61.3°F (16.3°C) in April to an agreeable 71.6°F (22°C). Weather in May »
Weather in June
The first month of the summer, June, is a moderately hot month in Rockland, Delaware, with an average temperature fluctuating between 79.5°F (26.4°C) and 62.8°F (17.1°C). The start of June signals a slight increase in the average high-temperature, moving from an agreeable 71.6°F (22°C) in May to a moderately hot 79.5°F (26.4°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Rockland, Delaware, with temperature in the range of an average high of 84.9°F (29.4°C) and an average low of 68.4°F (20.2°C). July, with average temperatures reaching a high of 84.9°F (29.4°C) and a low of 68.4°F (20.2°C), is the warmest month. Throughout July, the heat index is evaluated at a tropical 93.2°F (34°C). Weather in July »
Weather in August
August, the last month of the summer in Rockland, is also a moderately hot month, with temperature in the range of an average high of 82.9°F (28.3°C) and an average low of 66.7°F (19.3°C). August's arrival registers an average high-temperature of a still moderately hot 82.9°F (28.3°C), closely aligning with the temperature of the previous month. Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Rockland, Delaware, with an average temperature varying between 59.9°F (15.5°C) and 76.3°F (24.6°C). The move into September indicates a slight reduction in the average high-temperature, down from August's moderately hot 82.9°F (28.3°C) to a still warm 76.3°F (24.6°C). Weather in September »
Weather in October
October, the same as September, is another refreshing autumn month in Rockland, Delaware, with an average temperature varying between 64.6°F (18.1°C) and 50.2°F (10.1°C). October's arrival comes with a decrease in the average high-temperature, moving from a warm 76.3°F (24.6°C) in September to a refreshing 64.6°F (18.1°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a fresh month in Rockland, Delaware, with temperature in the range of an average low of 38.8°F (3.8°C) and an average high of 52.2°F (11.2°C). The onset of November entails a temperature shift, as the average high-temperature decreases from an enjoyable 64.6°F (18.1°C) in October to a fresh 52.2°F (11.2°C). Weather in November »
Weather in December
December, the first month of the winter in Rockland, is still a chilly month, with an average temperature ranging between min 32.7°F (0.4°C) and max 43.7°F (6.5°C). With the beginning of December, the average high-temperature shows a small decrease, transitioning from a cool 52.2°F (11.2°C) in November to a chilly 43.7°F (6.5°C). Weather in December »
Updated: Feb 10, 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 month is the coldest in Rockland?
January stands out as Rockland's coldest month, with an average high-temperature of 37°F (2.8°C) and a low-temperature of 25.3°F (-3.7°C).
What is the driest month in Rockland?
The month with the least rainfall in Rockland, Delaware, is January, when the rain falls for 9.3 days and typically collects 2.36" (60mm) of precipitation.
How many days does it rain in Rockland?
In Rockland, during the entire year, the rain falls for 168.9 days and collects up to 35.55" (903mm) of precipitation.
When does it snow in Rockland?
January through May, October through December are months with snowfall in Rockland.
How many days does it snow in Rockland?
In Rockland, Delaware, during the entire year, snow falls for 21.9 days and aggregates up to 12.05" (306mm) of snow.
When is the lowest UV index in Rockland?
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Rockland.
What is the month with the least sunshine in Rockland?
With an average of 4.9h of sunshine, February has the least sunshine of the year in Rockland, Delaware.
When does it snow the most in Rockland?
The month with the most snowfall in Rockland is March, when snow falls for 4.7 days and typically aggregates up to 3.58" (91mm) of snow.
When is Daylight Saving Time (DST) in Rockland?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Rockland, Delaware, 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 Rockland?
The least humid month is April, with an average relative humidity of 72%.
What is the month with the highest UV index in Rockland?
May through August, with an average maximum UV index of 6, are months with the highest UV index in Rockland, Delaware.
When it does not snow in Rockland?
In Rockland, Delaware, snow does not fall in June through September.
When are the longest days in Rockland?
The month with the longest days in Rockland, Delaware, is June, with an average of 14h and 54min of daylight.
What part of the year is the hottest in Rockland?
July, with average temperatures reaching a high of 84.9°F (29.4°C) and a low of 68.4°F (20.2°C), is the warmest month in Rockland.
What month has the most sunshine in Rockland?
July has the most sunshine of the year in Rockland, with an average of 10.6h of sunshine.
What is the wettest month in Rockland?
August is the month with the most rainfall in Rockland. Rain falls for 17.3 days and accumulates 4.09" (104mm) of precipitation.
What is the most humid month in Rockland?
October is the most humid month in Rockland, Delaware, with an average relative humidity of 78%.
What is the month with the shortest days in Rockland?
December has the shortest days of the year, with an average of 9h and 24min of daylight.
Average temperature
Rockland, DE
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (37°F).
The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (25.3°F).
Average pressure
Rockland, 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
Rockland, DE
- Average wind speed in January:
8.6mph - Average wind speed in February:
8.6mph - Average wind speed in March:
8.6mph - Average wind speed in April:
8.5mph - Average wind speed in May:
6.8mph - Average wind speed in June:
6.3mph
- Average wind speed in July:
5.5mph - Average wind speed in August:
5.4mph - Average wind speed in September:
5.8mph - Average wind speed in October:
7.2mph - Average wind speed in November:
7.7mph - Average wind speed in December:
8mph
The windiest months (with the highest average wind speed) are January, February and March (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity
Rockland, DE
The month with the highest relative humidity is October (78%).
The month with the lowest relative humidity is April (72%).
Average rainfall
Rockland, DE
- Average rainfall in January:
2.36" - Average rainfall in February:
2.56" - Average rainfall in March:
2.95" - Average rainfall in April:
2.87" - Average rainfall in May:
3.19" - Average rainfall in June:
3.07"
- Average rainfall in July:
3.58" - Average rainfall in August:
4.09" - Average rainfall in September:
2.4" - Average rainfall in October:
2.72" - Average rainfall in November:
2.44" - Average rainfall in December:
3.31"
The wettest month (with the highest rainfall) is August (4.09").
The driest month (with the least rainfall) is January (2.36").
Average rainfall days
Rockland, DE
- Average rainfall days in January:
9.3 days - Average rainfall days in February:
10.1 days - Average rainfall days in March:
14.9 days - Average rainfall days in April:
16.3 days - Average rainfall days in May:
18.7 days - Average rainfall days in June:
17.5 days
- Average rainfall days in July:
18.5 days - Average rainfall days in August:
17.3 days - Average rainfall days in September:
13.3 days - Average rainfall days in October:
12.7 days - Average rainfall days in November:
8.8 days - Average rainfall days in December:
11.5 days
The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is November (8.8 days).
Average snowfall
Rockland, DE
- Average snowfall in January:
3.03" - Average snowfall in February:
2.87" - Average snowfall in March:
3.58" - Average snowfall in April:
0.31" - Average snowfall in May:
0.12" - Average snowfall in June:
0"
The month with the highest snowfall is March (3.58").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Rockland, DE
- Average snowfall days in January:
6.8 days - Average snowfall days in February:
5.8 days - Average snowfall days in March:
4.7 days - Average snowfall days in April:
0.4 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:
0.8 days - Average snowfall days in December:
3.2 days
The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Rockland, DE
- 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:
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 0min - Average sunshine in February:
4h and 5min - Average sunshine in March:
6h and 3min - Average sunshine in April:
8h and 3min - Average sunshine in May:
8h and 4min - Average sunshine in June:
10h and 0min
- Average sunshine in July:
10h and 4min - Average sunshine in August:
10h and 1min - Average sunshine in September:
8h and 5min - Average sunshine in October:
5h and 4min - Average sunshine in November:
5h and 4min - Average sunshine in December:
5h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days
Rockland, DE
- Average sunshine days in January:
16.8 days - Average sunshine days in February:
13.2 days - Average sunshine days in March:
12.3 days - Average sunshine days in April:
11.9 days - Average sunshine days in May:
9.8 days - Average sunshine days in June:
9.9 days
- Average sunshine days in July:
9.8 days - Average sunshine days in August:
11 days - Average sunshine days in September:
14.2 days - Average sunshine days in October:
15.5 days - Average sunshine days in November:
18.6 days - Average sunshine days in December:
15.9 days
The month with the most sunshine days is November (18.6 days).
The months with the least sunshine days are May and July (9.8 days).
Average UV index
Rockland, 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, November and December (UV index 2).
Average cloud cover
Rockland, DE
The months with the most cloud cover are February and March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility
Rockland, 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).
Rockland, Delaware, USA
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