World Resorts USA New Castle Weather

New Castle weather in December

Weather in New Castle: December

Average day temperature: 43.9°F
Average night temperature: 37.0°F
Sea water temperature: 43.8°F
Number of sunny days: 10 days
Day length: 9.4 - 9.6 hours
Number of rainy days: 2 days
Precipitation totals: 1.1 in.

Air temperature in December, °F

Show year:
2024
2023
2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
0
10
20
30
40
50
60
70
80
Day temperature   
Night temperature

The highest day temperature during December of 2024 was 62°F. At the same time the lowest night temperature was 16°F. Daily and nightly averages during December were 42.2°F and 33.2°F.

Sea water temperature in New Castle in December, °F

Show year:
2024
2023
2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
31
35
39
43
47
51
55

The average sea water temperature in December of 2024 was 42.8°F. The highest and lowest sea temperatures during the month were 49.8°F and 38.5°F.

Sunny, partly cloudy and cloudy days
Sunny days
Partly cloudy days
Cloudy days
32%
29%
39%

Number of sunny, partly cloudy and cloudy days in December is almost equal.

Precipitation total in December, in.

jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
0.3
0.6
1.0
1.3
1.6
1.9
2.2
2.6
1.1
1.2
1.5
1.9
1.1
1.6
1.1
1.1
1.1
1.2
1.5
1.9
1.1
1.6
1.1

Precipitation total value in New Castle in December is 1.1 in. Other months of the year show relatively similar values.

Wind speed in December, mph
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
1.6
3.2
4.7
6.3
7.9
9.5
11.1
7.8
6.7
6.6
6.0
5.8
7.0
7.5
8.6
9.2
8.3
8.4
7.7
7.8
6.7
6.6
6.0
5.8
7.0
7.5
8.6
9.2
8.3
8.4

The average wind speed value in December is 7.7 mph

Average sunny hours
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
1.6
3.2
4.8
6.3
7.9
9.5
11.1
12.7
6.8
7.1
7.8
8.1
8.9
9.2
7.8
6.8
6.7
5.6
5.3
4.7
6.8
7.1
7.8
8.1
8.9
9.2
7.8
6.8
6.7
5.6
5.3

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in December is: 4.7.

Best time for vacation in New Castle

Sunniest months:
November 16 days
September 15 days
October 15 days
Warmest months:
July 85.0 °F
August 82.5 °F
June 79.3 °F
Warmest sea temp:
July 80.7 °F
August 80.0 °F
September 74.7 °F
Coldest months:
January 39.1 °F
February 42.3 °F
December 43.9 °F
Rainiest months:
July 4 days
August 4 days
June 3 days
Windiest months:
March 9.2 mph
April 8.6 mph
January 8.4 mph

New Castle on a weather map

Leaflet | Tiles © Esri
Places in USA:
Name
°F
+39°F
+79°F
+77°F
+77°F
+72°F
+72°F
+77°F
+46°F
+77°F
+63°F
+57°F
+77°F
+79°F
+75°F
+46°F
24 Hours Forecast
New Castle
Local time: 19:51
April 05, saturday
2100
55°F
W
7 mph
April 06, sunday
0000
54°F
W
6 mph
0300
57°F
NW
5 mph
0600
63°F
NE
9 mph
0900
64°F
NE
15 mph
1200
57°F
S
12 mph
1500
61°F
S
12 mph
1800
54°F
S
9 mph
Units of measurement: °C / °F