Weather History for Rock Hill, SC

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Month of December, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 73 °F 58 °F 44 °F
Mean Temperature 62 °F 49 °F 36 °F
Min Temperature 55 °F 39 °F 23 °F
Degree Days  
Heating Degree Days (base 65) 30 16 4 503
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 12 3 0 82
Dew Point  
Dew Point 61 °F 40 °F 11 °F
Precipitation  
Precipitation 1.95 in 0.14 in 0.00 in 4.20 in
Snowdepth - - - -
Wind  
Wind 21 mph 5 mph 0 mph
Gust Wind 38 mph 21 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.43 in 30.07 in 29.45 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 12, 2012 Rise Set
Actual Time 7:23 AM EST 5:13 PM EST
Civil Twilight 6:55 AM EST 5:41 PM EST
Nautical Twilight 6:23 AM EST 6:13 PM EST
Astronomical Twilight 5:52 AM EST 6:43 PM EST
Moon 6:26 AM EST (12/12) 4:48 PM EST (12/12)
Length of Visible Light 10h 46m
Length of Day
9h 50m
Waning Crescent, 1% of the Moon is Illuminated
Dec 12
Waning Crescent
Dec 13
New
Dec 20
First Quarter
Dec 28
Full
Jan 4
Last Quarter

Weather History Calendar

Precipitation Actual month total 4.20 Average Month Total: 3.57
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Fog
Actual:
66 | 35 0.00
Average:
57 | 37 0.15
Scattered Clouds
Actual:
68 | 41 0.00
Average:
57 | 35 0.06
Fog
Actual:
73 | 44 0.00
Average:
57 | 36 0.15
Partly Cloudy
Actual:
71 | 48 0.00
Average:
57 | 35 0.14
Rain
Actual:
69 | 54 0.01
Average:
57 | 35 0.10
Overcast
Actual:
55 | 48 0.00
Average:
56 | 33 0.08
Rain
Actual:
54 | 48 0.01
Average:
56 | 35 0.12
Fog
Actual:
70 | 46 0.00
Average:
55 | 36 0.09
Rain
Actual:
66 | 53 0.06
Average:
56 | 37 0.06
Rain
Actual:
68 | 55 0.03
Average:
54 | 36 0.21
Partly Cloudy
Actual:
61 | 46 0.00
Average:
54 | 35 0.10
Rain
Actual:
46 | 42 0.11
Average:
55 | 37 0.11
Rain
Actual:
52 | 33 0.06
Average:
56 | 35 0.11
Clear
Actual:
57 | 27 0.00
Average:
54 | 36 0.10
Partly Cloudy
Actual:
59 | 34 0.00
Average:
54 | 35 0.20
Rain
Actual:
57 | 50 0.47
Average:
54 | 36 0.11
Rain
Actual:
57 | 53 0.23
Average:
53 | 33 0.05
Partly Cloudy
Actual:
59 | 35 0.00
Average:
52 | 31 0.04
Clear
Actual:
66 | 35 0.00
Average:
53 | 33 0.01
Rain
Actual:
59 | 37 0.58
Average:
52 | 36 0.10
Scattered Clouds
Actual:
46 | 37 0.00
Average:
51 | 35 0.09
Clear
Actual:
55 | 27 0.00
Average:
51 | 33 0.19
Rain
Actual:
57 | 23 0.00
Average:
52 | 33 0.12
Rain
Actual:
48 | 44 0.36
Average:
53 | 33 0.15
Rain
Actual:
57 | 48 0.00
Average:
50 | 33 0.11
Thunderstorm
Actual:
57 | 37 1.95
Average:
50 | 30 0.05
Clear
Actual:
52 | 30 0.00
Average:
51 | 31 0.06
Scattered Clouds
Actual:
44 | 28 0.00
Average:
52 | 33 0.28
Rain
Actual:
51 | 35 0.33
Average:
53 | 34 0.09
Clear
Actual:
46 | 25 0.00
Average:
50 | 34 0.11
Scattered Clouds
Actual:
52 | 25 0.00
Average:
49 | 34 0.23
 

Calendar Legend

Sunny
Clear
Mostly Cloudy
Partly Sunny
Partly Cloudy
Mostly Sunny
Cloudy Rain Snow
Hail
Flurries
Thunderstorms Hazy
Fog
Sleet '?' denotes
'chance of'
Unknown

Daily Weather History & Observations

2012 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Dec high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 66 50 35 50 40 35 100 88 47 30.43 30.36 30.32 10 5 0 8 2 - 0.00 Fog
2 68 54 41 53 47 40 100 83 55 30.41 30.33 30.27 10 8 2 13 3 17 0.00  
3 73 58 44 55 49 44 100 87 44 30.32 30.28 30.24 10 6 0 14 5 - 0.00 Fog
4 71 60 48 56 52 47 97 80 51 30.34 30.26 30.21 10 10 9 14 6 20 0.00  
5 69 62 54 59 53 43 96 80 61 30.19 30.16 30.12 10 10 7 12 6 - 0.01 Rain
6 55 52 48 41 35 29 68 56 43 30.29 30.23 30.18 10 10 10 8 4 - 0.00  
7 54 51 48 50 44 34 100 80 56 30.20 30.08 30.03 10 6 0 7 3 - 0.01 Fog , Rain
8 70 58 46 54 50 46 100 88 55 30.07 30.03 29.99 10 6 0 13 4 - 0.00 Fog
9 66 60 53 61 57 53 100 94 79 30.13 30.06 29.99 9 4 0 8 3 - 0.06 Fog , Rain
10 68 62 55 61 58 55 100 91 65 29.97 29.84 29.72 10 6 0 16 7 25 0.03 Fog , Rain
11 61 54 46 59 49 31 100 80 54 30.15 29.90 29.74 10 9 2 13 6 - 0.00  
12 46 44 42 41 34 29 93 69 58 30.33 30.24 30.14 10 9 3 13 8 25 0.11 Rain
13 52 42 33 37 31 27 93 65 41 30.41 30.34 30.28 10 10 5 14 8 22 0.06 Rain
14 57 42 27 32 28 24 92 68 32 30.42 30.33 30.26 10 10 9 5 0 - 0.00  
15 59 46 34 40 33 25 97 63 27 30.28 30.19 30.10 10 9 5 8 1 - 0.00  
16 57 54 50 56 53 43 100 96 71 30.08 29.99 29.92 10 4 1 9 4 - 0.47 Rain
17 57 55 53 56 54 52 100 98 93 29.93 29.80 29.70 10 8 3 13 5 - 0.23 Rain
18 59 48 35 54 44 29 100 78 37 29.96 29.78 29.69 10 10 8 15 9 22 0.00  
19 66 50 35 41 36 30 86 64 32 30.12 30.04 29.95 10 10 10 9 5 - 0.00  
20 59 48 37 57 47 35 100 88 62 30.11 29.81 29.60 10 7 1 20 5 31 0.58 Rain
21 46 42 37 32 24 19 65 51 37 29.93 29.79 29.67 10 10 10 21 13 38 0.00  
22 55 41 27 23 18 11 72 48 17 30.15 30.08 29.94 10 10 10 10 5 - 0.00  
23 57 40 23 33 24 18 85 56 25 30.19 30.12 30.05 10 10 10 10 3 - 0.00 Rain
24 48 46 44 49 41 32 100 82 54 30.05 29.96 29.90 10 6 0 9 6 - 0.36 Fog , Rain
25 57 52 48 49 47 42 100 88 59 30.10 30.02 29.95 10 7 0 8 2 - 0.00 Fog , Rain
26 57 48 37 54 46 31 100 90 66 29.95 29.64 29.45 10 6 0 17 9 29 1.95 Fog , Rain , Thunderstorm
27 52 41 30 32 30 28 89 71 43 30.09 29.94 29.75 10 10 10 10 7 - 0.00  
28 44 36 28 32 29 26 92 76 55 30.19 30.10 29.99 10 9 6 5 2 - 0.00  
29 51 44 35 41 36 26 100 85 56 30.07 29.85 29.76 10 6 1 15 4 22 0.33 Rain
30 46 36 25 25 22 19 85 62 33 30.43 30.32 30.09 10 10 10 7 5 - 0.00  
31 52 38 25 29 26 23 92 61 35 30.40 30.31 30.14 10 10 8 16 5 22 0.00