Weather History for Spearfish, SD

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Month of September, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 91 °F 75 °F 44 °F
Mean Temperature 78 °F 63 °F 40 °F
Min Temperature 66 °F 51 °F 37 °F
Degree Days  
Heating Degree Days (base 65) 24 4 0 135
Cooling Degree Days (base 65) 14 3 0 84
Growing Degree Days (base 50) 28 14 0 409
Dew Point  
Dew Point 66 °F 48 °F 28 °F
Precipitation  
Precipitation 1.01 in 0.10 in 0.00 in 2.86 in
Snowdepth - - - -
Wind  
Wind 33 mph 8 mph 0 mph
Gust Wind 47 mph 21 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.37 in 29.97 in 29.52 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Sep. 24, 2013 Rise Set
Actual Time 7:44 AM CDT 7:48 PM CDT
Civil Twilight 7:15 AM CDT 8:17 PM CDT
Nautical Twilight 6:41 AM CDT 8:51 PM CDT
Astronomical Twilight 6:07 AM CDT 9:25 PM CDT
Moon 10:55 PM CDT (9/24) 1:13 PM CDT (9/24)
Length of Visible Light 13h 01m
Length of Day
12h 03m
Waning Gibbous, 73% of the Moon is Illuminated
Sep 24
Waning Gibbous
Sep 26
Last Quarter
Oct 4
New
Oct 11
First Quarter
Oct 18
Full

Weather History Calendar

 
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Clear
Actual:
80 | 48 0.00
Average:
- | - -
Clear
Actual:
89 | 55 0.00
Average:
- | - -
Rain
Actual:
84 | 66 0.00
Average:
- | - -
Thunderstorm
Actual:
87 | 59 0.00
Average:
- | - -
Thunderstorm
Actual:
91 | 62 0.14
Average:
- | - -
Rain
Actual:
91 | 66 0.02
Average:
- | - -
Thunderstorm
Actual:
91 | 62 0.01
Average:
- | - -
Thunderstorm
Actual:
75 | 60 0.44
Average:
- | - -
Scattered Clouds
Actual:
73 | 57 0.00
Average:
- | - -
Clear
Actual:
73 | 55 0.00
Average:
- | - -
Clear
Actual:
77 | 51 0.00
Average:
- | - -
Clear
Actual:
77 | 48 0.00
Average:
- | - -
Rain
Actual:
75 | 59 0.02
Average:
- | - -
Rain
Actual:
69 | 55 0.89
Average:
- | - -
Rain
Actual:
66 | 50 0.00
Average:
- | - -
Clear
Actual:
75 | 44 0.00
Average:
- | - -
Thunderstorm
Actual:
86 | 53 0.00
Average:
- | - -
Thunderstorm
Actual:
82 | 55 0.00
Average:
- | - -
Scattered Clouds
Actual:
59 | 44 0.00
Average:
- | - -
Clear
Actual:
69 | 37 0.00
Average:
- | - -
Clear
Actual:
80 | 44 0.00
Average:
- | - -
Thunderstorm
Actual:
86 | 59 0.00
Average:
- | - -
Rain
Actual:
66 | 46 1.01
Average:
- | - -
Clear
Actual:
73 | 42 0.00
Average:
- | - -
Thunderstorm
Actual:
66 | 50 0.11
Average:
- | - -
Partly Cloudy
Actual:
59 | 44 0.00
Average:
- | - -
Thunderstorm
Actual:
44 | 37 0.22
Average:
- | - -
Scattered Clouds
Actual:
62 | 37 0.00
Average:
- | - -
Clear
Actual:
73 | 46 0.00
Average:
- | - -
Clear
Actual:
78 | 48 0.00
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

2013 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Sep high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 80 64 48 48 44 39 71 49 30 30.20 30.16 30.10 10 10 10 12 4 - 0.00  
2 89 72 55 55 50 45 77 48 24 30.10 30.06 29.99 10 10 10 15 5 23 0.00  
3 84 75 66 63 58 52 78 55 39 30.11 30.04 30.00 10 10 10 13 5 - 0.00 Rain
4 87 73 59 63 60 55 88 65 40 30.18 30.15 30.11 10 10 10 14 5 20 0.00 Thunderstorm
5 91 76 62 66 62 55 100 65 34 30.22 30.13 30.03 10 10 8 17 8 29 0.14 Rain , Thunderstorm
6 91 78 66 64 60 55 78 56 29 30.12 30.06 30.01 10 10 10 13 5 18 0.02 Rain
7 91 76 62 66 60 50 94 60 26 30.11 30.06 29.98 10 10 9 15 7 20 0.01 Rain , Thunderstorm
8 75 68 60 66 63 59 100 85 69 30.08 29.99 29.86 10 9 2 18 10 22 0.44 Rain , Thunderstorm
9 73 66 57 61 55 50 94 72 46 30.03 29.95 29.82 10 10 10 16 7 23 0.00  
10 73 64 55 54 50 46 82 64 38 30.20 30.14 30.03 10 10 10 13 5 18 0.00  
11 77 64 51 52 48 45 82 58 32 30.32 30.26 30.20 10 10 10 12 5 - 0.00  
12 77 62 48 52 48 43 87 59 39 30.37 30.31 30.22 10 10 10 23 7 30 0.00  
13 75 67 59 59 54 46 100 65 49 30.21 30.06 29.90 10 10 6 20 12 26 0.02 Rain
14 69 62 55 63 59 55 100 89 60 30.11 29.93 29.85 10 9 0 16 6 24 0.89 Rain
15 66 58 50 59 52 43 100 82 52 30.31 30.24 30.12 10 8 0 18 10 21 0.00 Fog , Rain
16 75 60 44 57 49 41 93 69 44 30.23 30.05 29.91 10 10 8 10 4 - 0.00  
17 86 70 53 55 51 41 94 55 23 29.91 29.82 29.72 10 10 10 15 4 21 0.00 Thunderstorm
18 82 68 55 52 48 41 77 55 30 29.95 29.76 29.67 10 10 8 20 8 36 0.00 Rain , Thunderstorm
19 59 52 44 45 39 36 76 64 42 30.18 30.09 29.96 10 10 10 24 12 32 0.00  
20 69 53 37 41 37 34 87 57 28 30.18 30.08 29.94 10 10 10 13 5 16 0.00  
21 80 62 44 46 37 32 66 41 24 29.93 29.80 29.69 10 10 10 14 4 - 0.00  
22 86 72 59 52 42 32 72 37 23 29.69 29.61 29.53 10 10 10 24 12 44 0.00 Rain , Thunderstorm
23 66 56 46 54 49 41 100 80 45 29.97 29.76 29.52 10 9 3 18 11 29 1.01 Rain
24 73 58 42 45 39 36 76 50 25 30.04 29.93 29.74 10 10 6 29 5 39 0.00  
25 66 58 50 52 44 34 94 57 32 29.73 29.65 29.54 10 10 4 24 11 33 0.11 Rain , Thunderstorm
26 59 52 44 48 43 36 100 76 54 29.97 29.80 29.64 10 10 10 17 11 24 0.00  
27 44 40 37 39 37 34 100 93 76 29.97 29.94 29.91 10 8 2 10 7 - 0.22 Rain , Thunderstorm
28 62 50 37 36 32 30 87 51 30 29.95 29.93 29.90 10 10 10 24 13 34 0.00  
29 73 60 46 37 35 32 66 38 25 29.92 29.77 29.68 10 10 10 28 13 39 0.00  
30 78 63 48 48 37 28 77 42 23 29.88 29.70 29.56 10 10 10 33 12 47 0.00