Weather History for Waterloo, IA

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Month of December, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 67 °F 36 °F 14 °F
Mean Temperature 54 °F 27 °F 7 °F
Min Temperature 40 °F 18 °F -3 °F
Degree Days  
Heating Degree Days (base 65) 58 38 11 1181
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 2 0 0 2
Dew Point  
Dew Point 57 °F 21 °F -7 °F
Precipitation  
Precipitation 0.56 in 0.06 in 0.00 in 1.53 in
Snowdepth 9.0 in 2.5 in 0.0 in -
Wind  
Wind 41 mph 9 mph 0 mph
Gust Wind 52 mph 24 mph 17 mph
Sea Level Pressure  
Sea Level Pressure 30.48 in 30.01 in 29.49 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 28, 2012 Rise Set
Actual Time 7:38 AM CST 4:44 PM CST
Civil Twilight 7:06 AM CST 5:16 PM CST
Nautical Twilight 6:31 AM CST 5:51 PM CST
Astronomical Twilight 5:57 AM CST 6:25 PM CST
Moon 5:22 PM CST (12/28) 7:32 AM CST (12/28)
Length of Visible Light 10h 09m
Length of Day
9h 05m
Full, 100% of the Moon is Illuminated
Dec 28
Full
Jan 4
Last Quarter
Jan 11
New
Jan 18
First Quarter
Jan 26
Full

Weather History Calendar

Precipitation Actual month total 1.53 Normal Month Total: 1.20
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Fog
Actual:
52 | 30 0.00
Average:
37 | 19 0.05
Fog
Actual:
56 | 35 0.00
Average:
36 | 18 0.05
Partly Cloudy
Actual:
67 | 40 0.00
Average:
36 | 18 0.05
Clear
Actual:
52 | 20 0.00
Average:
35 | 17 0.05
Scattered Clouds
Actual:
40 | 16 0.00
Average:
35 | 17 0.04
Rain
Actual:
46 | 36 0.02
Average:
34 | 16 0.05
Partly Cloudy
Actual:
43 | 27 0.00
Average:
34 | 16 0.05
Snow
Actual:
39 | 20 0.01
Average:
33 | 16 0.04
Snow
Actual:
34 | 24 0.18
Average:
33 | 15 0.05
Partly Cloudy
Actual:
26 | 13 0.00
Average:
32 | 15 0.04
Partly Cloudy
Actual:
37 | 14 0.00
Average:
32 | 15 0.05
Clear
Actual:
49 | 25 0.00
Average:
31 | 14 0.04
Clear
Actual:
48 | 23 0.00
Average:
31 | 14 0.04
Scattered Clouds
Actual:
51 | 17 T
Average:
31 | 14 0.04
Rain
Actual:
45 | 40 0.56
Average:
30 | 13 0.04
Overcast
Actual:
39 | 23 0.00
Average:
30 | 13 0.03
Overcast
Actual:
27 | 21 0.00
Average:
30 | 13 0.04
Snow
Actual:
33 | 25 0.01
Average:
30 | 12 0.03
Snow
Actual:
35 | 31 0.50
Average:
29 | 12 0.04
Snow
Actual:
31 | 11 0.20
Average:
29 | 12 0.03
Snow
Actual:
21 | 4 0.00
Average:
29 | 12 0.03
Rain
Actual:
26 | 1 0.00
Average:
29 | 12 0.04
Partly Cloudy
Actual:
19 | 7 T
Average:
29 | 11 0.03
Snow
Actual:
22 | 18 T
Average:
28 | 11 0.03
Clear
Actual:
14 | -1 0.00
Average:
28 | 11 0.04
Partly Cloudy
Actual:
22 | 3 0.00
Average:
28 | 11 0.03
Partly Cloudy
Actual:
24 | -3 0.00
Average:
28 | 11 0.03
Snow
Actual:
29 | 21 0.05
Average:
28 | 11 0.03
Snow
Actual:
21 | 4 T
Average:
28 | 10 0.03
Scattered Clouds
Actual:
35 | -3 0.00
Average:
28 | 10 0.03
Clear
Actual:
28 | 2 0.00
Average:
28 | 10 0.03
 

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 52 41 30 52 44 30 100 93 85 30.07 29.88 29.79 5 2 0 13 6 15 0.00 Fog
2 56 46 35 50 43 34 100 76 51 30.03 29.93 29.84 10 3 0 18 5 23 0.00 Fog
3 67 54 40 57 48 30 100 79 58 30.01 29.79 29.63 10 6 1 25 14 35 0.00  
4 52 36 20 30 25 17 85 63 41 30.39 30.21 30.02 10 10 10 16 7 20 0.00  
5 40 28 16 30 19 13 84 64 44 30.43 30.28 30.06 10 10 10 22 10 30 0.00  
6 46 41 36 40 34 31 89 75 60 30.02 29.95 29.89 10 10 10 23 11 29 0.02 Rain
7 43 35 27 30 26 22 92 69 45 30.02 29.98 29.92 10 10 9 15 8 18 0.00  
8 39 30 20 31 25 17 92 76 59 30.07 30.02 29.99 10 9 2 16 7 21 0.01 Snow
9 34 29 24 34 30 21 100 92 84 29.99 29.87 29.77 10 5 1 21 9 26 0.18 Snow
10 26 20 13 23 14 8 92 83 73 30.00 29.94 29.81 10 10 10 23 9 30 0.00  
11 37 26 14 25 18 9 88 71 54 30.06 29.98 29.91 10 10 10 18 9 23 0.00  
12 49 37 25 21 18 15 81 55 29 30.11 30.08 30.04 10 10 10 26 14 35 0.00  
13 48 36 23 22 19 16 81 58 34 30.13 30.07 30.04 10 10 10 23 10 30 0.00  
14 51 34 17 39 25 15 92 67 42 30.14 30.01 29.82 10 10 8 17 7 24 T  
15 45 43 40 45 41 37 100 92 83 29.80 29.58 29.49 10 4 2 23 10 28 0.56 Rain
16 39 31 23 37 29 20 92 89 85 29.82 29.71 29.57 10 6 4 17 9 23 0.00  
17 27 24 21 23 21 19 100 91 81 29.81 29.77 29.69 7 5 4 14 4 16 0.00  
18 33 29 25 32 29 24 96 91 85 29.90 29.69 29.53 6 4 0 17 8 23 0.01 Fog , Snow
19 35 33 31 31 30 29 100 91 82 30.04 29.92 29.77 7 4 0 20 8 25 0.50 Fog , Snow
20 31 21 11 30 23 7 100 90 80 30.01 29.68 29.55 8 2 0 41 30 52 0.20 Fog , Snow
21 21 13 4 10 6 0 91 77 62 30.32 30.23 30.01 10 10 6 22 9 29 0.00 Snow
22 26 14 1 15 6 -2 95 75 55 30.28 30.11 29.99 10 9 5 14 4 16 0.00 Rain
23 19 13 7 16 12 6 92 86 80 30.13 30.05 29.98 9 7 4 14 7 16 T  
24 22 20 18 18 14 2 92 82 71 30.29 30.05 29.94 10 6 1 20 7 22 T Snow
25 14 7 -1 6 1 -5 87 77 67 30.48 30.41 30.30 10 10 10 15 9 17 0.00  
26 22 13 3 16 6 -2 96 85 73 30.37 30.29 30.25 10 10 6 12 6 13 0.00  
27 24 11 -3 19 10 -7 100 86 71 30.27 30.20 30.08 10 10 5 14 5 16 0.00  
28 29 25 21 23 21 17 96 86 75 30.09 30.00 29.94 10 4 1 12 7 14 0.05 Snow
29 21 13 4 18 10 1 88 81 73 30.27 30.14 29.97 10 7 4 21 10 24 T Snow
30 35 16 -3 23 7 -7 95 80 64 30.32 30.19 30.00 10 7 2 18 7 24 0.00  
31 28 15 2 19 7 -4 84 73 61 30.30 30.18 30.01 10 10 9 21 10 25 0.00