Weather History for Spearfish, SD

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Month of August, 2014

  Max Avg Min Sum
Temperature  
Max Temperature 87 °F 77 °F 64 °F
Mean Temperature 76 °F 67 °F 55 °F
Min Temperature 66 °F 57 °F 46 °F
Degree Days  
Heating Degree Days (base 65) 10 1 0 46
Cooling Degree Days (base 65) 11 3 0 101
Growing Degree Days (base 50) 26 17 5 529
Dew Point  
Dew Point 72 °F 55 °F 41 °F
Precipitation  
Precipitation 1.08 in 0.07 in 0.00 in 2.21 in
Snowdepth - - - -
Wind  
Wind 28 mph 7 mph 0 mph
Gust Wind 38 mph 21 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.34 in 30.05 in 29.66 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Aug. 19, 2014 Rise Set
Actual Time 7:02 AM CDT 8:53 PM CDT
Civil Twilight 6:31 AM CDT 9:24 PM CDT
Nautical Twilight 5:53 AM CDT 10:02 PM CDT
Astronomical Twilight 5:11 AM CDT 10:44 PM CDT
Moon 1:52 AM CDT (8/19) 4:56 PM CDT (8/19)
Length of Visible Light 14h 53m
Length of Day
13h 51m
Waning Crescent, 29% of the Moon is Illuminated
Aug 19
Waning Crescent
Aug 25
New
Sep 2
First Quarter
Sep 8
Full
Sep 15
Last Quarter

Weather History Calendar

 
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Clear
Actual:
87 | 64 0.00
Average:
- | - -
Clear
Actual:
84 | 55 0.00
Average:
- | - -
Thunderstorm
Actual:
84 | 62 0.00
Average:
- | - -
Thunderstorm
Actual:
82 | 59 0.00
Average:
- | - -
Thunderstorm
Actual:
73 | 60 0.57
Average:
- | - -
Partly Cloudy
Actual:
73 | 59 0.00
Average:
- | - -
Clear
Actual:
80 | 55 0.00
Average:
- | - -
Thunderstorm
Actual:
77 | 62 0.00
Average:
- | - -
Thunderstorm
Actual:
80 | 55 1.08
Average:
- | - -
Partly Cloudy
Actual:
75 | 59 0.00
Average:
- | - -
Scattered Clouds
Actual:
77 | 53 0.00
Average:
- | - -
Rain
Actual:
87 | 57 0.00
Average:
- | - -
Thunderstorm
Actual:
86 | 66 0.00
Average:
- | - -
Thunderstorm
Actual:
84 | 66 0.00
Average:
- | - -
Thunderstorm
Actual:
80 | 62 0.00
Average:
- | - -
Rain
Actual:
82 | 59 0.00
Average:
- | - -
Thunderstorm
Actual:
80 | 55 0.03
Average:
- | - -
Clear
Actual:
78 | 57 0.00
Average:
- | - -
Thunderstorm
Actual:
84 | 55 0.00
Average:
- | - -
Scattered Clouds
Actual:
82 | 62 0.00
Average:
- | - -
Thunderstorm
Actual:
73 | 59 0.02
Average:
- | - -
Thunderstorm
Actual:
68 | 59 0.00
Average:
- | - -
Thunderstorm
Actual:
66 | 57 0.44
Average:
- | - -
Scattered Clouds
Actual:
64 | 50 0.00
Average:
- | - -
Scattered Clouds
Actual:
64 | 46 0.00
Average:
- | - -
Scattered Clouds
Actual:
71 | 46 0.00
Average:
- | - -
Rain
Actual:
71 | 51 0.03
Average:
- | - -
Scattered Clouds
Actual:
80 | 55 0.00
Average:
- | - -
Rain
Actual:
73 | 51 0.00
Average:
- | - -
Thunderstorm
Actual:
84 | 50 0.01
Average:
- | - -
Thunderstorm
Actual:
64 | 48 0.03
Average:
- | - -
 

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

2014 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Aug high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 87 76 64 52 45 41 49 32 19 30.15 30.13 30.10 10 10 10 24 11 31 0.00  
2 84 70 55 57 49 45 72 48 26 30.24 30.20 30.16 10 10 10 12 6 - 0.00  
3 84 73 62 57 54 50 72 51 37 30.20 30.15 30.08 10 10 10 20 8 24 0.00 Thunderstorm
4 82 70 59 63 58 54 88 64 42 30.14 30.11 30.08 10 10 10 23 8 29 0.00 Thunderstorm
5 73 68 60 66 63 59 100 93 73 30.13 30.10 30.04 10 8 2 18 6 24 0.57 Rain , Thunderstorm
6 73 66 59 64 62 59 100 91 73 30.10 30.07 30.05 10 10 9 13 4 - 0.00  
7 80 68 55 63 60 55 100 77 54 30.07 30.05 30.01 10 10 10 12 4 17 0.00  
8 77 70 62 64 61 55 94 78 50 30.06 30.04 30.01 10 10 4 14 7 20 0.00 Thunderstorm
9 80 68 55 61 57 50 100 73 39 30.23 30.08 30.00 10 10 1 25 7 38 1.08 Rain , Thunderstorm
10 75 67 59 61 56 50 100 75 41 30.34 30.29 30.23 10 10 9 9 5 - 0.00  
11 77 65 53 57 52 48 88 65 39 30.33 30.29 30.23 10 10 10 13 6 16 0.00  
12 87 72 57 64 57 50 88 61 42 30.24 30.16 30.06 10 10 10 15 4 21 0.00 Rain
13 86 76 66 72 61 50 74 59 32 30.07 30.03 29.96 10 10 10 15 5 22 0.00 Thunderstorm
14 84 75 66 63 57 50 88 51 32 30.02 29.97 29.94 10 10 10 22 10 30 0.00 Thunderstorm
15 80 71 62 63 58 55 88 67 42 30.04 30.01 29.98 10 10 10 20 8 26 0.00 Thunderstorm
16 82 70 59 59 56 54 94 65 37 30.11 30.07 30.02 10 10 10 15 8 21 0.00 Rain
17 80 68 55 66 59 54 94 74 42 30.12 30.06 29.98 10 10 9 17 7 22 0.03 Rain , Thunderstorm
18 78 68 57 57 52 48 82 61 39 30.08 30.03 29.97 10 10 10 18 6 34 0.00  
19 84 70 55 63 55 50 88 59 37 29.96 29.86 29.76 10 10 10 16 7 22 0.00 Rain , Thunderstorm
20 82 72 62 59 54 50 77 49 32 29.91 29.80 29.74 10 10 10 18 6 28 0.00  
21 73 66 59 59 56 50 100 67 50 30.06 29.99 29.91 10 10 5 13 5 17 0.02 Rain , Thunderstorm
22 68 64 59 63 60 59 100 92 73 30.13 30.08 30.03 10 9 1 20 7 25 0.00 Rain , Thunderstorm
23 66 62 57 64 62 54 100 96 88 30.02 29.88 29.80 10 9 1 17 8 23 0.44 Rain , Thunderstorm
24 64 57 50 52 43 41 82 62 42 30.07 29.92 29.82 10 10 10 28 17 36 0.00  
25 64 55 46 48 44 41 94 69 52 30.20 30.15 30.07 10 10 10 18 11 25 0.00  
26 71 58 46 59 52 45 100 82 60 30.21 30.17 30.15 10 10 10 12 5 16 0.00  
27 71 61 51 63 58 50 100 88 68 30.20 30.15 30.09 10 10 5 18 6 22 0.03 Rain
28 80 68 55 59 55 50 100 70 39 30.09 30.02 29.96 10 10 10 13 4 - 0.00  
29 73 62 51 55 52 46 94 67 50 30.08 30.03 29.94 10 10 9 24 7 29 0.00 Rain
30 84 67 50 64 53 46 100 69 32 30.05 29.86 29.66 10 10 9 28 6 38 0.01 Rain , Thunderstorm
31 64 56 48 54 50 46 93 77 63 29.95 29.85 29.79 10 10 5 15 7 21 0.03 Rain , Thunderstorm