October weather forecastNew Castle, DE
October
Weather in October
October brings in the charming weather of fall in New Castle. The average high temperature drops significantly, leading to cooler days. Rainy days show a minor increase compared to September. The fall foliage and the crisp weather make outdoor activities particularly enjoyable in this period. Despite the fall in temperatures, the sea temperature remains high enough for coastal activities.Temperature
October comes with a decrease in the average high-temperature, falling from a moderately hot 76.3°F (24.6°C) in September to an enjoyable 64.8°F (18.2°C). Throughout the nights in October, an average low-temperature of 50.4°F (10.2°C) is noted in New Castle.Humidity
With an average relative humidity of 78%, October is the most humid month.Rainfall
In New Castle, in October, during 10.5 rainfall days, 1.61" (41mm) of precipitation is typically accumulated. Throughout the year, there are 143.2 rainfall days, and 21.89" (556mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall.Ocean temperature
In New Castle, in October, the average water temperature is 64.6°F (18.1°C).Note: Swimming is not enjoyable for most people in water that is 64.6°F (18.1°C). As the temperature descends from 69.8°F (21°C) to 59°F (15°C), breathing control becomes harder.
Daylight
In October, the average length of the day is 11h and 8min.On the first day of the month, sunrise is at 6:59 am and sunset at 6:44 pm. On the last day of October, sunrise is at 7:30 am and sunset at 6:01 pm EDT.
Sunshine
In October, the average sunshine is 5.7h.UV index
In October, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index of 4 during October leads to these instructions:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
New Castle, DE
- Average high temperature in October: 64.8°F
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (37.8°F).
- Average low temperature in October: 50.4°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 (26.1°F).
Average pressure in October
New Castle, DE
- Average pressure in October: 30.03"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in October
New Castle, DE
- Average wind speed in October: 7.4mph
The windiest months (with the highest average wind speed) are February and March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in October
New Castle, DE
- Average humidity in October: 78%
The month with the highest relative humidity is October (78%).
The month with the lowest relative humidity is April (72%).
Average rainfall in October
New Castle, DE
- Average rainfall in October: 1.61"
The wettest month (with the highest rainfall) is August (2.83").
The driest month (with the least rainfall) is January (1.38").
Average rainfall days in October
New Castle, DE
- Average rainfall days in October: 10.5 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in October
New Castle, DE
- Average snowfall in October: 0"
The month with the highest snowfall is January (1.69").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in October
New Castle, DE
- Average snowfall days in October: 0 days
The month with the highest number of snowfall days is January (5.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in October
New Castle, DE
- Average sea temperature in October: 64.5°F
The best month for swimming (with the highest average sea temperature) is August (76.3°F).
The coldest month (with the lowest average sea temperature) is February (40.9°F).
Average daylight in October /
Average sunshine in October
New Castle, DE
- Average daylight in October: 11h and 6min
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 October: 5h and 42min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in October
New Castle, DE
- Average sunshine days in October: 18.7 days
The month with the most sunshine days is November (20.1 days).
The month with the least sunshine days is May (11.8 days).
Average UV index in October
New Castle, DE
- Average UV index in October: 4
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 in October
New Castle, DE
- Average cloud cover in October: 39
The months with the most cloud cover are February and March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in October
New Castle, DE
- Average visibility in October: 6mi
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).
