Weather History for Mason City, IA

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Month of January, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 57 °F 32 °F 4 °F
Mean Temperature 41 °F 23 °F -1 °F
Min Temperature 33 °F 13 °F -17 °F
Degree Days  
Heating Degree Days (base 65) 66 42 24 1300
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 0 0 0 0
Dew Point  
Dew Point 37 °F 17 °F -19 °F
Precipitation  
Precipitation 0.34 in 0.03 in 0.00 in 0.58 in
Snowdepth 9.0 in 2.8 in 0.0 in -
Wind  
Wind 44 mph 14 mph 0 mph
Gust Wind 55 mph 30 mph 20 mph
Sea Level Pressure  
Sea Level Pressure 30.56 in 29.99 in 29.39 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Jan. 18, 2012 Rise Set
Actual Time 7:40 AM CST 5:06 PM CST
Civil Twilight 7:09 AM CST 5:38 PM CST
Nautical Twilight 6:34 AM CST 6:13 PM CST
Astronomical Twilight 6:00 AM CST 6:47 PM CST
Moon 3:11 AM CST (1/18) 12:45 PM CST (1/18)
Length of Visible Light 10h 28m
Length of Day
9h 25m
Waning Crescent, 24% of the Moon is Illuminated
Jan 18
Waning Crescent
Jan 23
New
Jan 30
First Quarter
Feb 7
Full
Feb 14
Last Quarter

Weather History Calendar

Precipitation Actual month total 0.58 Normal Month Total: 0.82
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Snow
Actual:
34 | 19 T
Average:
25 | 8 0.03
Snow
Actual:
20 | 7 T
Average:
25 | 8 0.02
Clear
Actual:
33 | 5 0.00
Average:
25 | 8 0.03
Clear
Actual:
40 | 25 0.00
Average:
25 | 8 0.03
Clear
Actual:
57 | 24 0.00
Average:
25 | 8 0.02
Scattered Clouds
Actual:
46 | 32 0.00
Average:
25 | 7 0.03
Scattered Clouds
Actual:
38 | 21 0.00
Average:
24 | 7 0.02
Clear
Actual:
42 | 15 0.00
Average:
24 | 7 0.03
Clear
Actual:
47 | 28 0.00
Average:
24 | 7 0.03
Clear
Actual:
55 | 22 0.00
Average:
24 | 7 0.03
Snow
Actual:
38 | 13 T
Average:
24 | 7 0.02
Snow
Actual:
13 | 9 T
Average:
24 | 7 0.03
Snow
Actual:
14 | 2 T
Average:
24 | 7 0.02
Snow
Actual:
28 | -1 T
Average:
24 | 7 0.03
Clear
Actual:
40 | 8 0.00
Average:
24 | 7 0.02
Scattered Clouds
Actual:
35 | 21 0.00
Average:
24 | 7 0.03
Snow
Actual:
21 | -4 0.05
Average:
25 | 7 0.02
Snow
Actual:
27 | -5 T
Average:
25 | 7 0.02
Scattered Clouds
Actual:
4 | -7 0.00
Average:
25 | 7 0.03
Snow
Actual:
6 | -8 0.34
Average:
25 | 7 0.02
Partly Cloudy
Actual:
20 | -17 T
Average:
25 | 7 0.03
Snow
Actual:
33 | 18 0.03
Average:
25 | 7 0.03
Snow
Actual:
32 | 21 0.16
Average:
25 | 7 0.02
Overcast
Actual:
24 | 18 0.00
Average:
25 | 7 0.03
Partly Cloudy
Actual:
33 | 21 0.00
Average:
25 | 7 0.03
Scattered Clouds
Actual:
37 | 23 0.00
Average:
25 | 7 0.03
Snow
Actual:
34 | 17 T
Average:
25 | 7 0.02
Snow
Actual:
31 | 17 T
Average:
25 | 7 0.03
Snow
Actual:
28 | 15 T
Average:
25 | 7 0.03
Scattered Clouds
Actual:
42 | 23 0.00
Average:
26 | 8 0.03
Scattered Clouds
Actual:
44 | 33 0.00
Average:
26 | 8 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
Jan high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 34 27 19 32 18 10 96 77 58 30.38 30.13 29.74 10 10 6 44 32 55 T Snow
2 20 14 7 13 8 3 83 70 56 30.56 30.44 30.33 10 9 2 37 20 46 T Snow
3 33 19 5 20 11 3 88 66 43 30.51 30.17 29.93 10 10 10 28 11 36 0.00  
4 40 33 25 28 25 20 88 71 54 30.16 30.07 29.93 10 10 10 21 12 25 0.00  
5 57 41 24 34 28 24 85 62 39 29.99 29.83 29.69 10 10 10 21 10 26 0.00  
6 46 39 32 30 28 24 82 68 53 29.95 29.81 29.67 10 10 10 21 12 28 0.00  
7 38 30 21 25 23 18 96 78 59 30.28 30.14 29.96 10 10 7 23 9 30 0.00  
8 42 29 15 25 21 11 96 73 50 30.35 30.29 30.20 10 9 6 14 7 16 0.00  
9 47 38 28 31 26 23 78 64 49 30.17 30.04 29.96 10 10 10 24 15 30 0.00  
10 55 39 22 31 26 20 92 65 38 30.01 29.87 29.68 10 10 10 20 8 23 0.00  
11 38 26 13 33 18 3 96 82 67 29.86 29.75 29.61 10 6 1 37 21 46 T Snow
12 13 11 9 7 4 1 80 71 61 29.90 29.81 29.74 10 5 0 37 27 45 T Snow
13 14 8 2 5 2 -2 83 75 66 30.06 30.01 29.85 10 8 2 24 10 29 T Snow
14 28 14 -1 25 13 -6 96 78 59 30.17 30.10 30.03 10 8 3 13 4 15 T Snow
15 40 24 8 27 21 7 92 73 54 30.17 29.94 29.74 10 10 8 30 13 37 0.00  
16 35 28 21 27 23 12 92 80 68 29.87 29.78 29.71 10 9 7 21 13 25 0.00  
17 21 9 -4 12 6 -6 84 71 58 30.36 30.12 29.84 10 6 1 30 18 35 0.05 Snow
18 27 11 -5 19 6 -9 86 72 57 30.33 29.98 29.77 10 8 1 32 15 38 T Snow
19 4 -1 -7 -9 -13 -17 75 61 46 30.25 30.17 30.01 10 10 6 26 11 32 0.00  
20 6 -1 -8 0 -4 -12 87 72 56 30.31 30.14 30.03 10 4 0 16 8 20 0.34 Snow
21 20 2 -17 18 3 -19 92 85 77 30.29 30.09 29.81 10 7 2 29 12 36 T  
22 33 26 18 32 24 15 100 92 84 29.82 29.59 29.40 6 2 0 25 16 32 0.03 Fog , Rain , Snow
23 32 27 21 31 21 16 92 74 56 30.01 29.64 29.39 10 3 0 30 20 36 0.16 Fog , Snow
24 24 21 18 19 17 15 92 66 40 30.33 30.22 29.98 10 9 8 17 7 23 0.00  
25 33 27 21 28 23 19 92 87 81 30.35 30.10 29.93 9 5 4 20 11 23 0.00  
26 37 30 23 30 26 18 92 81 70 29.90 29.81 29.73 10 8 4 24 13 29 0.00  
27 34 26 17 30 24 14 89 74 59 30.02 29.89 29.82 10 8 1 31 14 40 T Snow
28 31 24 17 25 17 10 77 68 58 30.12 30.05 29.97 10 9 1 21 15 25 T Snow
29 28 22 15 23 16 10 92 77 62 30.24 30.10 29.96 10 9 4 26 12 32 T Snow
30 42 33 23 32 26 19 85 68 51 29.94 29.76 29.68 10 10 10 23 11 26 0.00  
31 44 39 33 37 32 30 92 76 60 30.00 29.80 29.64 10 9 4 23 15 29 0.00