Climate and monthly weather forecastSlaughter Beach, DE
Climate and monthly weather forecast
The climate of Slaughter Beach
In geographical terms, Slaughter Beach, Delaware, USA lies in the Köppen climate classification Cfa or Humid subtropical, with no dry season. A close examination of climate data illustrates that Slaughter Beach's weather varies consistently throughout the year, showcasing characteristics of a humid subtropical climate.Temperatures in Slaughter Beach exhibit a steady increase and decrease throughout the year, reaching their peak in the midsummer months with an average high of 83.1°F (28.4°C) in July and subsequently dipping to their lowest in January with an average low of 29.7°F (-1.3°C). Substantial fluctuations in humidity also follow this pattern closely, with the highest at 80% in May and the lowest at 74% in January and November.
Rainfall is fairly evenly distributed throughout the year, with the months from July to August receiving marginally higher precipitation, peaking at 3.07" (78mm) in August. Conversely, January registers as the driest month, receiving approximately 1.5" (38mm) of rainfall. Snowfall is predominantly a winter phenomenon, peaking at 1.22" (31mm) in January.
The best time to visit Slaughter Beach
Considering the climate dynamics in Slaughter Beach, the best time to visit would arguably be in Spring or early Summer, particularly from May to June. These months present relatively warm temperatures, ranging from 70°F (21.1°C) to 78.1°F (25.6°C), combined with moderate rainfall, measured between 2.28" (58mm) to 2.48" (63mm). In conjunction with ample daylight hours, around 14.3 to 14.9 hours, and delightful sunshine duration ranging from 9.1 hours to 10.4 hours, these months offer quite an agreeable climate for outdoor recreation and beach activities.The worst time to visit Slaughter Beach
On the contrary, the winter season is potentially less alluring for tourism, extending from December to February. These months are characterized by cold temperatures, the lowest being 29.7°F (-1.3°C) in January, and the highest snowfall, reaching up to 1.22" (31mm) in January as well. The daylight hours during these months range from 9.5 hours to 10.1 hours only, limiting the outdoor activity duration.Spring weather in Slaughter Beach
In Slaughter Beach, the spring season, spanning from March to May, ushers in increased temperatures, progressing from 49.8°F (9.9°C) to 70°F (21.1°C). Concurrently, humidity also experiences a rise from 75% to 80%. Furthermore, rainfall tends to intensify, culminating at 2.28" (58mm) in May. Daylight extends generously during this time, giving individuals ample time to indulge in outdoor activities.Summer weather in Slaughter Beach
Summers in Slaughter Beach, from June to August, are hot and rainy, offering a quintessential beach experience. Among these months, July and August are notably hurricane-prone due to high humidity and temperatures. The highest temperature touched is 83.1°F (28.4°C) in July and rainfall reaches its pinnacle of 3.07" (78mm) in August.Autumn weather in Slaughter Beach
Autumn months from September to November in Slaughter Beach are characterized by a gradual temperature drop from 76.1°F (24.5°C) to 54.5°F (12.5°C) and a decrease in rainfall to 1.85" (47mm) in November. Meanwhile, daylight hours also decline gradually, making room for evening activities or quiet nights indoors.Winter weather in Slaughter Beach
The winter months of December to February in Slaughter Beach bring colder days and snowy nights. January is the coldest month, with temperatures sinking to 29.7°F (-1.3°C). Snowfall, although not very high, is most common in these months, touching 1.22" (31mm) in January. Despite the cold, the charm of the wintertime scenery might appeal to some visitors.Weather in January
January in Slaughter Beach, Delaware brings a cold winter chill, with temperatures fluctuating between 29.7°F (-1.3°C) and 40.6°F (4.8°C), making it the coldest month of the year. Shorter hours of daylight, paired with increased cloud percentage makes the winter weather feel even colder. Weather in January »Weather in February
Moving into February, Slaughter Beach, Delaware experiences a slight increase in temperature range from 31.5°F (-0.3°C) to 43.7°F (6.5°C). Days start to gradually lengthen, signaling the slow progress towards spring. While snowfall lessens, rainfall increases marginally, resulting in a higher number of rainy days compared to January. Weather in February »Weather in March
March sees a steady shift from the winter cold as Slaughter Beach transitions towards spring, with temperatures ranging from 37.9°F (3.3°C) to 49.8°F (9.9°C). This month sees a significant increase in daylight hours, which in turn contributes to more hours of sunshine. Weather in March »Weather in April
With average temperatures from 47.7°F (8.7°C) to 60.6°F (15.9°C), April in Slaughter Beach, Delaware delineates the arrival of warmer weather. This mid-spring month is characterized by noticeably longer daylight hours. While April experiences fewer snowfall days compared to March, the rainfall frequency remains consistent, maintaining soil moisture for flourishing plant life. Weather in April »Weather in May
May brings a distinct change to Slaughter Beach, Delaware, with temperatures rising from 57°F (13.9°C) to 70°F (21.1°C) to mark the beginning of a warmer season. Longer sunshine hours and significant daylight hours add to the pleasant, inviting weather. Weather in May »Weather in June
June in Slaughter Beach, Delaware, with temperatures varying from 65.5°F (18.6°C) to 78.1°F (25.6°C), officially ushers in the summer. This month enjoys the longest daylight hours and the highest number of sunshine days, perfect for beachgoers and outdoor enthusiasts. Weather in June »Weather in July
As the heat of July sets in, Slaughter Beach finds itself at the peak of summer with temperatures soaring from 70.7°F (21.5°C) to 83.1°F (28.4°C), the warmest of the year. The long summer days extend the period for outdoor recreational activities. Weather in July »Weather in August
August in Slaughter Beach maintains the summer heat, but with a slight decrease in temperature from 69.3°F (20.7°C) to 81.5°F (27.5°C). The number of daylight hours starts to recede from the year's peak observed in July. Despite the reduction, the town still retains ample sunny hours. Weather in August »Weather in September
September in Slaughter Beach, Delaware heralds the arrival of fall, with temperatures ranging from 64°F (17.8°C) to 76.1°F (24.5°C). Less daylight gives way to longer evenings and cooler nights. Prospects of rainfall lessen as well, making way for clearer skies. Weather in September »Weather in October
October makes a considerable shift from the warmth of summer to far cooler weather in Slaughter Beach, with temperatures dropping between 54.5°F (12.5°C) and 66.2°F (19°C). Increased cloud percentages indicate more overcast days, yet rainfall remains relatively modest. Weather in October »Weather in November
With temperatures fluctuating from 43.7°F (6.5°C) to 54.5°F (12.5°C), November in Slaughter Beach, Delaware, signifies a transition into winter. Shorter daylight hours and reduced sunshine further bolster the arrival of colder weather. Weather in November »Weather in December
December brings Slaughter Beach back full circle to winter, with temperatures ranging from 36.3°F (2.4°C) to 46.8°F (8.2°C). Characterized by the shortest daylight hours and reduced sunshine, this month is visibly colder. The frequency of rainfall remains static, but an increment is noticed in snowfall days. Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Slaughter Beach, DE
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (40.6°F).
The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (29.7°F).
Average pressure
Slaughter Beach, 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:
30"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:
30.03"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
Slaughter Beach, DE
- Average wind speed in January:
10.3mph - Average wind speed in February:
10.4mph - Average wind speed in March:
10.3mph - Average wind speed in April:
10.2mph - Average wind speed in May:
8.6mph - Average wind speed in June:
7.8mph
- Average wind speed in July:
6.8mph - Average wind speed in August:
6.6mph - Average wind speed in September:
7.8mph - Average wind speed in October:
9.2mph - Average wind speed in November:
9.5mph - Average wind speed in December:
9.6mph
The windiest month (with the highest average wind speed) is February (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity
Slaughter Beach, DE
The month with the highest relative humidity is May (80%).
The months with the lowest relative humidity are January and November (74%).
Average rainfall
Slaughter Beach, DE
- Average rainfall in January:
1.5" - Average rainfall in February:
1.89" - Average rainfall in March:
2.13" - Average rainfall in April:
1.61" - Average rainfall in May:
2.28" - Average rainfall in June:
2.48"
- Average rainfall in July:
2.95" - Average rainfall in August:
3.07" - Average rainfall in September:
1.85" - Average rainfall in October:
2.44" - Average rainfall in November:
1.85" - Average rainfall in December:
1.89"
The wettest month (with the highest rainfall) is August (3.07").
The driest month (with the least rainfall) is January (1.5").
Average rainfall days
Slaughter Beach, DE
- Average rainfall days in January:
8.4 days - Average rainfall days in February:
9.8 days - Average rainfall days in March:
12.8 days - Average rainfall days in April:
13.5 days - Average rainfall days in May:
16.1 days - Average rainfall days in June:
14.8 days
- Average rainfall days in July:
17.3 days - Average rainfall days in August:
16 days - Average rainfall days in September:
13.5 days - Average rainfall days in October:
11.1 days - Average rainfall days in November:
8.9 days - Average rainfall days in December:
10.2 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (8.4 days).
Average snowfall
Slaughter Beach, DE
The month with the highest snowfall is January (1.22").
The months with the least snowfall are April, June, July, August, September and October (0").
Average snowfall days
Slaughter Beach, DE
- Average snowfall days in January:
3.3 days - Average snowfall days in February:
2.7 days - Average snowfall days in March:
2.1 days - Average snowfall days in April:
0 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:
0.5 days - Average snowfall days in December:
1.7 days
The month with the highest number of snowfall days is January (3.3 days).
The months with the least snowfall days are April, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Slaughter Beach, DE
- Average daylight in January:
9h and 48min - Average daylight in February:
10h and 48min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 12min - Average daylight in May:
14h and 18min - Average daylight in June:
14h and 54min
- Average daylight in July:
14h and 36min - Average daylight in August:
13h and 36min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 12min - Average daylight in November:
10h and 6min - Average daylight in December:
9h and 30min
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 24min - Average sunshine in February:
5h and 0min - Average sunshine in March:
6h and 48min - Average sunshine in April:
8h and 54min - Average sunshine in May:
9h and 6min - Average sunshine in June:
10h and 24min
- Average sunshine in July:
10h and 48min - Average sunshine in August:
10h and 24min - Average sunshine in September:
9h and 24min - Average sunshine in October:
5h and 42min - Average sunshine in November:
5h and 48min - Average sunshine in December:
5h and 12min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).
Average sunshine days
Slaughter Beach, DE
- Average sunshine days in January:
19.6 days - Average sunshine days in February:
15.8 days - Average sunshine days in March:
15.8 days - Average sunshine days in April:
14.7 days - Average sunshine days in May:
12.3 days - Average sunshine days in June:
13 days
- Average sunshine days in July:
11.6 days - Average sunshine days in August:
12.3 days - Average sunshine days in September:
14.7 days - Average sunshine days in October:
18.4 days - Average sunshine days in November:
19.5 days - Average sunshine days in December:
18.8 days
The month with the most sunshine days is January (19.6 days).
The month with the least sunshine days is July (11.6 days).
Average UV index
Slaughter Beach, 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 and December (UV index 2).
Average cloud cover
Slaughter Beach, DE
The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility
Slaughter Beach, 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).





