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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, the same as December, is another cold winter month in South Dennis, New Jersey, with an average temperature varying between 31.3°F (-0.4°C) and 40.1°F (4.5°C). January is the coldest month, with the temperature often reaching an average high of 40.1°F (4.5°C) and an average low of 31.3°F (-0.4°C). Weather in January »
Weather in February
February, the last month of the winter in South Dennis, is another cold month, with an average temperature varying between 42.1°F (5.6°C) and 32.7°F (0.4°C). South Dennis indicates an average high-temperature of a still icy 42.1°F (5.6°C) in February, showing minor variation from January's 40.1°F (4.5°C). Weather in February »
Weather in March
The first month of the spring, March, is a chilly month in South Dennis, New Jersey, with an average temperature fluctuating between 38.3°F (3.5°C) and 47.3°F (8.5°C). March is marked by an average high-temperature of a frosty 47.3°F (8.5°C), almost identical to the preceding month. Weather in March »
Weather in April
April is a mild spring month in South Dennis, New Jersey, with an average temperature ranging between max 56.8°F (13.8°C) and min 48°F (8.9°C). The commencement of April sees a shift in the average high-temperature, moving from a frosty 47.3°F (8.5°C) in March to a mild 56.8°F (13.8°C). Weather in April »
Weather in May
The last month of the spring, May, is a refreshing month in South Dennis, New Jersey, with an average temperature varying between 57°F (13.9°C) and 66.2°F (19°C). South Dennis sees an increase in the average high-temperature with the arrival of May, moving from April's mild 56.8°F (13.8°C) to a still refreshing 66.2°F (19°C). Weather in May »
Weather in June
June, the first month of the summer in South Dennis, is a moderately hot month, with an average temperature ranging between max 74.8°F (23.8°C) and min 66.2°F (19°C). As South Dennis transitions into June, the average high-temperature is observed to slightly rise from an enjoyable 66.2°F (19°C) in May to a warm 74.8°F (23.8°C). Weather in June »
Weather in July
July, the same as June, is another warm summer month in South Dennis, New Jersey, with temperature in the range of an average low of 72.1°F (22.3°C) and an average high of 80.8°F (27.1°C). July is the warmest month, with the temperature often reaching an average high of 80.8°F (27.1°C) and an average low of 72.1°F (22.3°C). July's mean heat index is calculated to be a hot 86°F (30°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in South Dennis, New Jersey, with temperature in the range of an average high of 79.9°F (26.6°C) and an average low of 71.6°F (22°C). In August, South Dennis's weather conditions record an average high-temperature of a still moderately hot 79.9°F (26.6°C), demonstrating little divergence from the preceding month. Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in South Dennis, New Jersey, with an average temperature varying between 73.9°F (23.3°C) and 66.2°F (19°C). South Dennis's transition into September involves a gentle shift in temperature, receding from 79.9°F (26.6°C) in August to a still warm 73.9°F (23.3°C). Weather in September »
Weather in October
October, the same as September, is another enjoyable autumn month in South Dennis, New Jersey, with an average temperature ranging between max 64.4°F (18°C) and min 56.3°F (13.5°C). The transition into October is accompanied by a temperature decrease, with the average high-temperature shifting from a warm 73.9°F (23.3°C) in September to an enjoyable 64.4°F (18°C). Weather in October »
Weather in November
November, the last month of the autumn in South Dennis, is also a fresh month, with an average temperature fluctuating between 45.5°F (7.5°C) and 54.1°F (12.3°C). The start of November signals a decrease in the average high-temperature, transitioning from an enjoyable 64.4°F (18°C) in October to a fresh 54.1°F (12.3°C). Weather in November »
Weather in December
The first month of the winter, December, is also a frosty month in South Dennis, New Jersey, with an average temperature ranging between max 46°F (7.8°C) and min 37.9°F (3.3°C). South Dennis's progression into December involves a minor drop in the average high-temperature, slightly receding from a fresh 54.1°F (12.3°C) in November to a frosty 46°F (7.8°C). Weather in December »
Updated: Aug 11, 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?
With average high and low temperatures of 40.1°F (4.5°C) and 31.3°F (-0.4°C) respectively, January is South Dennis's coldest month.
What is the driest month?
The month with the least rainfall in South Dennis is January, when the rain falls for 7 days and typically collects 0.67" (17mm) of precipitation.
How many days does it rain?
Throughout the year, there are 130.8 rainfall days, and 13.23" (336mm) of precipitation is accumulated.
When does it snow?
January through March, November and December are months with snowfall.
What is the snowiest month?
The month with the most snowfall is January, when snow falls for 4.7 days and typically aggregates up to 0.59" (15mm) of snow.
How many days does it snow?
Throughout the year, there are 13.2 snowfall days, and 1.85" (47mm) of snow is accumulated.
What is the month with 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?
The month with the least sunshine is February, with an average of 5h of sunshine.
When is Daylight Saving Time (DST) in South Dennis?
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.
When it does not snow in South Dennis?
April through October are months without snowfall.
What is the most humid month in South Dennis?
The most humid month is May, with an average relative humidity of 81%.
When are the longest days?
The month with the longest days is June, with an average of 14h and 54min of daylight.
What is the month with the highest UV index?
The months with the highest UV index are June through August, with an average maximum UV index of 6.
What part of the year is the hottest?
In South Dennis, July registers the highest temperatures, averaging 80.8°F (27.1°C) at the peak and 72.1°F (22.3°C) at the lowest.
What month has the most sunshine?
July has the most sunshine of the year, with an average of 11h of sunshine.
What is the rainiest month?
The month with the most rainfall is August, when the rain falls for 13.5 days and typically aggregates up to 1.61" (41mm) of precipitation.
What is the least humid month?
The least humid month in South Dennis is November, with an average relative humidity of 73%.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 9h and 30min of daylight.
Average temperature
South Dennis, NJ
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (40.1°F).
The month with the highest average low temperature is July (72.1°F).
The coldest month (with the lowest average low temperature) is January (31.3°F).
Average pressure
South Dennis, NJ
- Average pressure in January:
30.08"Hg - Average pressure in February:
30.06"Hg - Average pressure in March:
30.06"Hg - Average pressure in April:
29.99"Hg - Average pressure in May:
30.02"Hg - Average pressure in June:
29.94"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.04"Hg - Average pressure in October:
30.02"Hg - Average pressure in November:
30.11"Hg - Average pressure in December:
30.09"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed
South Dennis, NJ
- Average wind speed in January:
11.9mph - Average wind speed in February:
11.7mph - Average wind speed in March:
11.6mph - Average wind speed in April:
11.5mph - Average wind speed in May:
9.7mph - Average wind speed in June:
8.9mph
- Average wind speed in July:
8.1mph - Average wind speed in August:
8.1mph - Average wind speed in September:
9.5mph - Average wind speed in October:
11.1mph - Average wind speed in November:
11.4mph - Average wind speed in December:
11.4mph
The windiest month (with the highest average wind speed) is January (11.9mph).
The calmest months (with the lowest average wind speed) are July and August (8.1mph).
Average humidity
South Dennis, NJ
The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is November (73%).
Average rainfall
South Dennis, NJ
- Average rainfall in January:
0.67" - Average rainfall in February:
0.79" - Average rainfall in March:
0.98" - Average rainfall in April:
0.91" - Average rainfall in May:
1.42" - Average rainfall in June:
1.26"
- Average rainfall in July:
1.38" - Average rainfall in August:
1.61" - Average rainfall in September:
0.91" - Average rainfall in October:
1.26" - Average rainfall in November:
0.98" - Average rainfall in December:
1.06"
The wettest month (with the highest rainfall) is August (1.61").
The driest month (with the least rainfall) is January (0.67").
Average rainfall days
South Dennis, NJ
- Average rainfall days in January:
7 days - Average rainfall days in February:
7.4 days - Average rainfall days in March:
12.3 days - Average rainfall days in April:
11.2 days - Average rainfall days in May:
13.8 days - Average rainfall days in June:
11.9 days
- Average rainfall days in July:
15.2 days - Average rainfall days in August:
13.5 days - Average rainfall days in September:
10.6 days - Average rainfall days in October:
10.9 days - Average rainfall days in November:
7.2 days - Average rainfall days in December:
9.8 days
The month with the highest number of rainy days is July (15.2 days).
The month with the least rainy days is January (7 days).
Average snowfall
South Dennis, NJ
The month with the highest snowfall is January (0.59").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
South Dennis, NJ
- Average snowfall days in January:
4.7 days - Average snowfall days in February:
3.4 days - Average snowfall days in March:
2.1 days - Average snowfall days in April:
0 days - Average snowfall days in May:
0 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:
0.5 days - Average snowfall days in December:
2.5 days
The month with the highest number of snowfall days is January (4.7 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
South Dennis, NJ
- Average daylight in January:
9h and 5min - Average daylight in February:
10h and 5min - 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 3min
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 30min).
- Average sunshine in January:
5h and 2min - Average sunshine in February:
5h - Average sunshine in March:
6h and 5min - Average sunshine in April:
9h - Average sunshine in May:
9h and 1min - Average sunshine in June:
10h and 4min
- Average sunshine in July:
11h - Average sunshine in August:
10h and 4min - Average sunshine in September:
9h and 3min - Average sunshine in October:
6h - Average sunshine in November:
5h and 4min - Average sunshine in December:
5h and 1min
The month with the most sunshine is July (Average sunshine: 11h).
The month with the least sunshine is February (Average sunshine: 5h).
Average sunshine days
South Dennis, NJ
- Average sunshine days in January:
19.6 days - Average sunshine days in February:
17.5 days - Average sunshine days in March:
16.9 days - Average sunshine days in April:
16.6 days - Average sunshine days in May:
15.3 days - Average sunshine days in June:
15.6 days
- Average sunshine days in July:
13.4 days - Average sunshine days in August:
14.8 days - Average sunshine days in September:
17.4 days - Average sunshine days in October:
17.5 days - Average sunshine days in November:
20.4 days - Average sunshine days in December:
18.1 days
The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is July (13.4 days).
Average UV index
South Dennis, NJ
The months with the highest UV index are 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
South Dennis, NJ
The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 25).
Average visibility
South Dennis, NJ
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).
South Dennis, New Jersey, USA
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