World Resorts USA Rochester Weather

Rochester weather in December

Weather in Rochester: December

Average day temperature: 37.1°F
Average night temperature: 32.9°F
Sea water temperature: 43.6°F
Number of sunny days: 3 days
Day length: 9.0 - 9.2 hours
Number of rainy days: 1 day
Precipitation totals: 0.9 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
8
16
24
32
40
48
56
64
Day temperature   
Night temperature

The highest day temperature during December of 2024 was 46°F. At the same time the lowest night temperature was 9°F. Day and night temperature averages during December were 34.2°F and 30.1°F.

Sea water temperature in Rochester in December, °F

Show year:
2024
2023
2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
35
38
41
44
47
50
53

The average sea water temperature in December of 2024 was 44.1°F. The highest and lowest sea temperatures during the month were 47.8°F and 40.1°F.

Sunny, partly cloudy and cloudy days
Sunny days
Partly cloudy days
Cloudy days
10%
16%
74%

Mostly all days in December are cloudy but sunny and partly cloudy days are also possible.

Precipitation total in December, in.

jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
0.3
0.5
0.8
1.1
1.4
1.6
1.9
2.2
1.6
1.6
1.1
1.0
1.5
1.1
1.6
1.6
1.1
1.0
1.5
1.1

Precipitation total value in Rochester in December is 0.9 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
1.8
3.7
5.5
7.3
9.1
11.0
12.8
10.7
9.0
7.6
7.0
6.9
7.7
7.5
9.6
10.6
10.3
10.3
10.3
10.7
9.0
7.6
7.0
6.9
7.7
7.5
9.6
10.6
10.3
10.3

The average wind speed value in December is 10.3 mph

Average sunny hours
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
1.5
2.9
4.4
5.9
7.4
8.8
10.3
11.8
4.3
5.4
7.3
7.5
8.6
8.0
8.0
5.3
4.2
3.3
2.3
2.7
4.3
5.4
7.3
7.5
8.6
8.0
8.0
5.3
4.2
3.3
2.3

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: 2.7.

Best time for vacation in Rochester

Sunniest months:
September 12 days
July 11 days
August 9 days
Warmest months:
July 78.1 °F
August 76.4 °F
June 72.4 °F
Warmest sea temp:
August 74.1 °F
July 72.1 °F
September 69.7 °F
Coldest months:
January 29.6 °F
February 31.8 °F
December 37.1 °F
Rainiest months:
August 3 days
April 3 days
May 2 days
Windiest months:
November 10.7 mph
March 10.6 mph
January 10.3 mph

Rochester on a weather map

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Places in USA:
Name
°F
+27°F
+25°F
+75°F
+75°F
+63°F
+68°F
+77°F
+28°F
+63°F
+64°F
+46°F
+66°F
+63°F
+41°F
+27°F
24 Hours Forecast
Rochester
Local time: 14:56
February 20, thursday
1500
21°F
SE
14 mph
1800
21°F
SE
14 mph
2100
21°F
SE
15 mph
February 21, friday
0000
19°F
SE
15 mph
0300
19°F
SE
14 mph
0600
18°F
SE
15 mph
0900
16°F
SE
15 mph
1200
18°F
SE
17 mph
Units of measurement: °C / °F