Weather History for Mason City, IA

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Month of May, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 99 °F 66 °F 33 °F
Mean Temperature 78 °F 57 °F 32 °F
Min Temperature 62 °F 47 °F 28 °F
Degree Days  
Heating Degree Days (base 65) 33 9 0 292
Cooling Degree Days (base 65) 13 1 0 37
Growing Degree Days (base 50) 28 9 0 268
Dew Point  
Dew Point 67 °F 46 °F 16 °F
Precipitation  
Precipitation 1.45 in 0.23 in 0.00 in 6.54 in
Snowdepth 8.0 in 0.4 in 0.0 in -
Wind  
Wind 37 mph 12 mph 0 mph
Gust Wind 47 mph 25 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.49 in 29.95 in 29.49 in

Monthly Weather History Graph

Monthly Weather History Graph

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Search our weather history database for the weather conditions in past years. The results will help you decide how hot, cold, wet, or windy it might be!

Date:

Astronomy

May. 31, 2013 Rise Set
Actual Time 5:36 AM CDT 8:45 PM CDT
Civil Twilight 5:02 AM CDT 9:20 PM CDT
Nautical Twilight 4:17 AM CDT 10:04 PM CDT
Astronomical Twilight 3:24 AM CDT 10:58 PM CDT
Moon 1:13 AM CDT (5/31) 1:01 PM CDT (5/31)
Length of Visible Light 16h 18m
Length of Day
15h 09m
Waning Gibbous, 51% of the Moon is Illuminated
May 31
Waning Gibbous
May 31
Last Quarter
Jun 8
New
Jun 16
First Quarter
Jun 23
Full

Weather History Calendar

Precipitation Actual month total 6.54 Normal Month Total: 4.68
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Thunderstorm
Actual:
52 | 33 0.68
Average:
65 | 41 0.14
Thunderstorm
Actual:
36 | 32 0.57
Average:
66 | 42 0.14
Snow
Actual:
33 | 31 0.13
Average:
66 | 42 0.15
Rain
Actual:
42 | 33 0.05
Average:
66 | 42 0.14
Partly Cloudy
Actual:
60 | 37 0.00
Average:
67 | 43 0.14
Scattered Clouds
Actual:
72 | 42 0.00
Average:
67 | 43 0.14
Scattered Clouds
Actual:
74 | 43 0.00
Average:
67 | 44 0.14
Thunderstorm
Actual:
76 | 46 0.09
Average:
68 | 44 0.14
Rain
Actual:
61 | 47 0.13
Average:
68 | 44 0.16
Partly Cloudy
Actual:
64 | 43 0.00
Average:
68 | 45 0.15
Scattered Clouds
Actual:
56 | 36 0.00
Average:
69 | 45 0.14
Clear
Actual:
59 | 28 0.00
Average:
69 | 45 0.15
Scattered Clouds
Actual:
74 | 34 0.00
Average:
69 | 46 0.16
Clear
Actual:
99 | 56 0.00
Average:
70 | 46 0.15
Scattered Clouds
Actual:
77 | 54 0.00
Average:
70 | 46 0.15
Rain
Actual:
85 | 46 0.19
Average:
70 | 47 0.16
Thunderstorm
Actual:
72 | 56 0.49
Average:
70 | 47 0.15
Scattered Clouds
Actual:
82 | 57 0.00
Average:
71 | 48 0.16
Thunderstorm
Actual:
79 | 62 1.31
Average:
71 | 48 0.15
Thunderstorm
Actual:
73 | 59 0.03
Average:
71 | 48 0.15
Mostly Cloudy
Actual:
63 | 56 T
Average:
72 | 49 0.15
Rain
Actual:
61 | 51 0.17
Average:
72 | 49 0.15
Rain
Actual:
64 | 44 T
Average:
72 | 49 0.15
Thunderstorm
Actual:
69 | 38 0.27
Average:
73 | 50 0.16
Thunderstorm
Actual:
55 | 50 0.15
Average:
73 | 50 0.16
Thunderstorm
Actual:
54 | 47 1.45
Average:
73 | 50 0.16
Rain
Actual:
61 | 53 0.53
Average:
74 | 51 0.15
Rain
Actual:
73 | 55 0.10
Average:
74 | 51 0.16
Thunderstorm
Actual:
76 | 60 0.18
Average:
74 | 51 0.16
Rain
Actual:
73 | 62 0.02
Average:
75 | 52 0.16
Thunderstorm
Actual:
78 | 59 T
Average:
75 | 52 0.16
 

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

2013 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
May high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 52 43 33 48 37 30 92 84 76 30.43 30.24 29.95 10 8 2 29 21 37 0.68 Rain , Snow , Thunderstorm
2 36 34 32 31 30 28 92 84 75 30.49 30.43 30.38 10 4 0 30 19 36 0.57 Fog , Rain , Snow , Thunderstorm
3 33 32 31 30 29 28 92 87 82 30.38 30.21 30.06 10 4 0 28 20 33 0.13 Fog , Rain , Snow
4 42 38 33 36 33 30 92 84 76 30.14 30.08 30.02 10 9 6 23 13 28 0.05 Rain
5 60 49 37 51 42 34 93 80 67 30.15 30.12 30.07 10 9 6 15 9 18 0.00  
6 72 57 42 52 46 40 96 68 40 30.12 30.07 30.03 10 9 5 12 6 14 0.00  
7 74 59 43 51 46 41 96 66 35 30.08 30.03 29.98 10 9 4 9 2 12 0.00  
8 76 61 46 56 50 44 89 64 38 30.00 29.97 29.95 10 9 5 18 5 24 0.09 Rain , Thunderstorm
9 61 54 47 57 52 45 93 89 84 30.00 29.93 29.89 10 8 3 26 13 35 0.13 Rain
10 64 54 43 48 42 38 93 68 43 30.07 30.03 29.96 10 10 10 22 9 26 0.00  
11 56 46 36 40 27 16 76 49 22 30.20 30.09 29.94 10 10 10 37 22 47 0.00  
12 59 44 28 25 22 18 75 48 21 30.25 30.19 30.12 10 10 10 20 9 25 0.00  
13 74 54 34 45 35 25 75 50 25 30.14 29.99 29.75 10 10 10 26 13 33 0.00  
14 99 78 56 54 45 32 72 44 15 29.74 29.64 29.49 10 10 10 35 16 45 0.00  
15 77 66 54 47 43 34 72 50 27 29.93 29.86 29.71 10 9 2 25 8 31 0.00  
16 85 66 46 62 46 36 93 55 17 29.93 29.87 29.81 10 10 5 17 6 22 0.19 Rain
17 72 64 56 64 59 52 97 85 73 29.97 29.92 29.83 10 8 2 28 11 32 0.49 Rain , Thunderstorm
18 82 70 57 63 59 53 87 69 51 29.97 29.89 29.79 10 9 4 20 10 25 0.00  
19 79 71 62 67 63 60 93 76 58 29.82 29.68 29.53 10 7 1 31 15 39 1.31 Rain , Thunderstorm
20 73 66 59 61 57 54 90 74 57 29.66 29.59 29.52 10 10 4 22 15 31 0.03 Rain , Thunderstorm
21 63 60 56 57 52 48 93 77 60 29.67 29.61 29.51 10 10 8 20 9 25 T  
22 61 56 51 55 52 48 96 86 75 29.90 29.73 29.63 10 8 2 21 10 24 0.17 Rain
23 64 54 44 48 43 33 89 62 34 30.31 30.15 29.92 10 10 10 21 12 26 T Rain
24 69 54 38 47 42 34 79 58 36 30.39 30.29 30.19 10 10 4 23 11 30 0.27 Rain , Thunderstorm
25 55 53 50 48 47 45 86 76 66 30.28 30.22 30.19 10 10 5 29 17 35 0.15 Rain , Thunderstorm
26 54 51 47 51 46 44 93 87 80 30.21 30.14 30.00 10 4 1 30 16 41 1.45 Rain , Thunderstorm
27 61 57 53 58 55 52 100 97 93 30.04 29.87 29.78 6 2 0 25 14 32 0.53 Fog , Rain
28 73 64 55 63 58 54 100 84 68 29.80 29.73 29.68 10 5 0 21 7 25 0.10 Fog , Rain
29 76 68 60 66 62 59 100 85 69 29.82 29.75 29.63 10 6 0 21 11 28 0.18 Fog , Rain , Thunderstorm
30 73 68 62 64 61 59 93 83 73 29.71 29.61 29.53 10 10 4 28 16 37 0.02 Rain
31 78 69 59 61 58 49 90 64 37 29.65 29.61 29.56 10 10 8 29 16 38 T Thunderstorm