Weather History for Spearfish, SD

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Month of December, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 57 °F 32 °F -9 °F
Mean Temperature 48 °F 22 °F -14 °F
Min Temperature 42 °F 12 °F -20 °F
Degree Days  
Heating Degree Days (base 65) 80 43 16 1326
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 0 0 0 0
Dew Point  
Dew Point 36 °F 11 °F -26 °F
Precipitation  
Precipitation 2.64 in 0.45 in 0.00 in 13.87 in
Snowdepth - - - -
Wind  
Wind 34 mph 11 mph 0 mph
Gust Wind 52 mph 23 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.36 in 29.97 in 29.50 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 20, 2013 Rise Set
Actual Time 8:28 AM CST 5:17 PM CST
Civil Twilight 7:54 AM CST 5:51 PM CST
Nautical Twilight 7:17 AM CST 6:28 PM CST
Astronomical Twilight 6:42 AM CST 7:03 PM CST
Moon 8:47 PM CST (12/20) 10:17 AM CST (12/20)
Length of Visible Light 9h 56m
Length of Day
8h 49m
Waning Gibbous, 90% of the Moon is Illuminated
Dec 20
Waning Gibbous
Dec 25
Last Quarter
Jan 1
New
Jan 7
First Quarter
Jan 15
Full

Weather History Calendar

 
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Partly Cloudy
Actual:
50 | 37 0.00
Average:
- | - -
Snow
Actual:
48 | 30 0.14
Average:
- | - -
Snow
Actual:
28 | 5 2.64
Average:
- | - -
Snow
Actual:
5 | -2 2.13
Average:
- | - -
Snow
Actual:
1 | -9 0.00
Average:
- | - -
Snow
Actual:
-4 | -18 0.00
Average:
- | - -
Snow
Actual:
-9 | -20 0.08
Average:
- | - -
Snow
Actual:
6 | -14 0.04
Average:
- | - -
Snow
Actual:
23 | 0 0.41
Average:
- | - -
Snow
Actual:
28 | -2 2.41
Average:
- | - -
Scattered Clouds
Actual:
32 | 0 0.00
Average:
- | - -
Clear
Actual:
42 | 23 0.00
Average:
- | - -
Snow
Actual:
35 | 24 0.19
Average:
- | - -
Partly Cloudy
Actual:
41 | 32 0.00
Average:
- | - -
Partly Cloudy
Actual:
48 | 41 0.00
Average:
- | - -
Partly Cloudy
Actual:
46 | 30 0.00
Average:
- | - -
Clear
Actual:
55 | 23 0.00
Average:
- | - -
Clear
Actual:
57 | 28 0.00
Average:
- | - -
Snow
Actual:
28 | -4 1.33
Average:
- | - -
Clear
Actual:
26 | -7 0.00
Average:
- | - -
Snow
Actual:
21 | 10 0.42
Average:
- | - -
Snow
Actual:
15 | 1 1.08
Average:
- | - -
Snow
Actual:
32 | -7 0.00
Average:
- | - -
Snow
Actual:
41 | 19 1.59
Average:
- | - -
Scattered Clouds
Actual:
37 | 28 0.00
Average:
- | - -
Scattered Clouds
Actual:
46 | 37 0.00
Average:
- | - -
Clear
Actual:
55 | 42 0.00
Average:
- | - -
Snow
Actual:
55 | 5 0.14
Average:
- | - -
Snow
Actual:
32 | 5 0.06
Average:
- | - -
Snow
Actual:
32 | 23 0.11
Average:
- | - -
Snow
Actual:
42 | 15 1.10
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
Dec high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 50 44 37 28 26 25 65 51 37 30.08 29.89 29.67 10 10 10 15 4 21 0.00  
2 48 40 30 36 31 25 100 72 43 29.67 29.57 29.50 10 9 4 20 10 30 0.14 Rain , Snow
3 28 17 5 28 13 1 100 91 79 29.87 29.73 29.53 10 4 1 20 13 25 2.64 Snow
4 5 2 -2 1 -5 -11 92 77 66 30.06 29.95 29.86 10 3 0 25 19 36 2.13 Rain , Snow
5 1 -4 -9 -9 -12 -17 77 67 60 30.21 30.11 30.04 10 10 10 20 14 33 0.00 Snow
6 -4 -11 -18 -11 -17 -24 77 74 65 30.36 30.31 30.21 10 10 5 9 4 - 0.00 Snow
7 -9 -14 -20 -17 -21 -26 84 75 70 30.34 30.16 29.95 10 9 2 8 3 - 0.08 Snow
8 6 -4 -14 -2 -11 -20 84 71 48 30.00 29.88 29.81 10 9 2 24 7 34 0.04 Snow
9 23 12 0 16 2 -8 93 64 41 29.99 29.87 29.73 10 9 2 34 17 46 0.41 Rain , Snow
10 28 14 -2 21 11 -6 93 74 43 30.26 29.98 29.81 10 7 0 26 13 36 2.41 Rain , Snow
11 32 16 0 10 5 -4 92 59 35 30.26 30.19 30.13 10 10 10 22 9 28 0.00  
12 42 32 23 23 15 7 69 51 37 30.16 30.05 29.87 10 10 10 13 6 20 0.00  
13 35 30 24 28 22 16 100 71 55 30.07 29.94 29.83 10 9 1 17 7 24 0.19 Snow
14 41 36 32 27 23 21 75 59 49 30.12 30.06 30.00 10 10 10 23 15 32 0.00  
15 48 44 41 25 23 19 53 42 37 30.00 29.92 29.89 10 10 10 24 16 30 0.00  
16 46 38 30 28 25 19 87 65 34 30.16 30.03 29.90 10 10 10 22 11 34 0.00  
17 55 39 23 25 21 18 93 56 24 30.24 30.05 29.80 10 10 10 24 11 30 0.00  
18 57 42 28 27 21 18 93 44 23 29.81 29.76 29.71 10 10 10 24 13 31 0.00  
19 28 13 -4 27 10 -8 100 91 78 30.02 29.88 29.75 10 4 0 25 13 29 1.33 Fog , Snow
20 26 10 -7 16 1 -13 92 68 40 29.92 29.72 29.59 10 10 10 10 4 - 0.00  
21 21 16 10 16 9 1 93 75 46 29.89 29.70 29.56 10 9 2 15 4 21 0.42 Snow
22 15 8 1 14 6 -2 93 85 73 30.24 30.06 29.90 10 9 1 14 8 16 1.08 Snow
23 32 12 -7 25 3 -13 92 75 57 30.25 30.12 29.87 10 10 10 10 4 - 0.00 Snow
24 41 30 19 32 25 16 100 76 53 30.15 30.01 29.78 10 8 0 32 11 52 1.59 Rain , Snow
25 37 32 28 18 15 10 64 50 33 30.28 30.17 30.00 10 10 10 25 18 40 0.00  
26 46 42 37 27 21 10 56 46 27 30.16 30.09 29.98 10 10 10 24 15 33 0.00  
27 55 48 42 28 25 19 53 42 26 30.12 30.02 29.82 10 10 10 24 13 32 0.00  
28 55 30 5 27 11 0 93 59 23 30.34 30.05 29.76 10 10 4 29 15 40 0.14 Snow
29 32 18 5 25 10 0 86 71 51 30.30 30.06 29.83 10 10 4 20 6 25 0.06 Snow
30 32 28 23 27 24 19 93 78 60 30.11 29.99 29.84 10 10 2 26 15 33 0.11 Rain , Snow
31 42 28 15 30 20 14 100 77 34 29.98 29.88 29.79 10 8 2 18 10 26 1.10 Rain , Snow