Weather History for Morgantown, WV

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Month of December, 1999

  Max Avg Min Sum
Temperature  
Max Temperature 63 °F 43 °F 23 °F
Mean Temperature 56 °F 36 °F 17 °F
Min Temperature 50 °F 29 °F 10 °F
Degree Days  
Heating Degree Days (base 65) 48 28 9 883
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 6 0 0 10
Dew Point  
Dew Point 54 °F 28 °F 8 °F
Precipitation  
Precipitation 0.83 in 0.08 in 0.00 in 2.38 in
Snowdepth 3.0 in 1.7 in 1.0 in -
Wind  
Wind 21 mph 5 mph 0 mph
Gust Wind 40 mph 20 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.62 in 30.12 in 29.55 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 31, 1999 Rise Set
Actual Time 7:40 AM EST 5:05 PM EST
Civil Twilight 7:10 AM EST 5:35 PM EST
Nautical Twilight 6:36 AM EST 6:09 PM EST
Astronomical Twilight 6:03 AM EST 6:41 PM EST
Moon 1:57 AM EST (12/31) 1:29 PM EST (12/31)
Length of Visible Light 10h 25m
Length of Day
9h 24m
Waning Crescent, 30% of the Moon is Illuminated
Dec 31
Waning Crescent
Jan 6
New
Jan 14
First Quarter
Jan 20
Full
Jan 28
Last Quarter

Weather History Calendar

Precipitation Actual month total 2.38 Average Month Total: 3.11
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Scattered Clouds
Actual:
33 | 17 0.00
Average:
47 | 31 0.09
Scattered Clouds
Actual:
48 | 21 0.00
Average:
46 | 28 0.09
Rain
Actual:
63 | 42 0.00
Average:
44 | 28 0.16
Rain
Actual:
57 | 48 0.07
Average:
44 | 27 0.11
Rain
Actual:
62 | 50 0.10
Average:
44 | 30 0.06
Snow
Actual:
51 | 33 0.01
Average:
44 | 28 0.12
Snow
Actual:
37 | 28 0.02
Average:
42 | 29 0.11
Scattered Clouds
Actual:
51 | 24 0.00
Average:
46 | 30 0.13
Partly Cloudy
Actual:
59 | 28 0.00
Average:
45 | 29 0.16
Rain
Actual:
55 | 34 0.61
Average:
42 | 28 0.16
Scattered Clouds
Actual:
41 | 25 0.00
Average:
41 | 27 0.05
Partly Cloudy
Actual:
53 | 26 0.00
Average:
45 | 28 0.07
Rain
Actual:
46 | 42 0.60
Average:
43 | 29 0.11
Rain
Actual:
46 | 42 0.83
Average:
44 | 27 0.07
Partly Cloudy
Actual:
57 | 39 0.00
Average:
45 | 28 0.11
Snow
Actual:
41 | 30 0.01
Average:
41 | 26 0.06
Partly Cloudy
Actual:
46 | 26 0.00
Average:
39 | 24 0.07
Partly Cloudy
Actual:
42 | 30 0.00
Average:
38 | 22 0.09
Partly Cloudy
Actual:
46 | 32 0.00
Average:
41 | 25 0.04
Rain
Actual:
52 | 37 0.05
Average:
41 | 26 0.12
Snow
Actual:
35 | 27 0.00
Average:
40 | 24 0.15
Snow
Actual:
32 | 24 0.01
Average:
41 | 23 0.11
Snow
Actual:
33 | 21 0.00
Average:
42 | 27 0.13
Snow
Actual:
23 | 17 0.00
Average:
40 | 24 0.19
Partly Cloudy
Actual:
24 | 10 0.00
Average:
38 | 22 0.10
Snow
Actual:
32 | 21 0.05
Average:
34 | 20 0.07
Snow
Actual:
28 | 23 0.00
Average:
37 | 22 0.04
Snow
Actual:
24 | 21 0.02
Average:
40 | 25 0.08
Snow
Actual:
35 | 21 0.00
Average:
41 | 24 0.04
Rain
Actual:
48 | 37 0.00
Average:
39 | 26 0.12
Partly Cloudy
Actual:
48 | 28 0.00
Average:
41 | 25 0.10
 

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

1999 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 33 25 17 18 16 15 93 75 48 30.62 30.55 30.46 10 10 10 7 1 - 0.00  
2 48 34 21 19 14 9 85 44 23 30.44 30.33 30.22 10 10 10 8 3 - 0.00  
3 63 52 42 37 24 13 47 33 27 30.25 30.19 30.12 10 10 10 12 5 28 0.00 Rain
4 57 52 48 49 47 38 93 81 51 30.26 30.21 30.13 10 10 10 10 7 20 0.07 Rain
5 62 56 50 51 47 33 93 77 34 30.16 30.00 29.82 10 10 7 14 4 20 0.10 Rain
6 51 42 33 49 38 28 100 86 74 30.19 30.00 29.86 10 10 4 9 6 16 0.01 Rain , Snow
7 37 34 28 34 31 27 100 90 70 30.36 30.29 30.19 10 6 2 7 5 - 0.02 Snow
8 51 38 24 32 28 22 100 76 43 30.43 30.38 30.32 10 9 5 6 1 - 0.00  
9 59 44 28 37 29 23 96 62 25 30.38 30.28 30.06 10 10 9 5 1 - 0.00  
10 55 45 34 54 44 21 100 85 52 30.26 29.95 29.79 10 9 4 13 6 24 0.61 Rain
11 41 33 25 29 27 25 100 80 53 30.35 30.29 30.20 10 10 10 6 3 - 0.00  
12 53 40 26 41 33 26 100 79 43 30.19 30.08 29.96 10 10 10 9 2 - 0.00  
13 46 44 42 46 44 39 100 97 74 30.00 29.95 29.90 10 3 1 12 4 - 0.60 Rain
14 46 44 42 45 41 39 93 87 79 29.97 29.84 29.72 10 9 2 21 9 38 0.83 Rain
15 57 48 39 43 34 23 100 65 33 30.00 29.92 29.77 10 10 6 15 7 25 0.00  
16 41 36 30 32 24 14 100 64 36 30.14 30.01 29.92 10 9 0 15 10 40 0.01 Fog , Rain , Snow
17 46 36 26 32 24 16 81 59 46 30.21 30.17 30.10 10 10 9 7 5 - 0.00  
18 42 36 30 34 31 25 96 83 70 30.29 30.25 30.18 10 10 10 7 3 - 0.00  
19 46 39 32 40 35 30 100 82 68 30.25 30.21 30.17 10 10 10 18 7 29 0.00  
20 52 46 37 52 47 35 100 95 86 30.14 30.04 29.97 10 8 1 12 7 21 0.05 Rain
21 35 31 27 23 17 13 72 60 51 30.32 30.24 30.14 10 10 9 8 5 - 0.00 Snow
22 32 28 24 25 18 8 100 73 37 30.37 30.31 30.22 10 9 2 12 4 - 0.01 Snow
23 33 27 21 23 18 10 81 66 55 30.30 30.25 30.19 10 10 9 12 7 21 0.00 Snow
24 23 20 17 18 15 10 100 86 60 30.44 30.27 30.18 10 8 2 7 3 - 0.00 Snow
25 24 17 10 16 11 8 100 77 50 30.51 30.39 30.16 10 10 10 14 5 20 0.00  
26 32 26 21 31 23 10 100 79 49 30.13 29.88 29.80 10 6 1 17 10 24 0.05 Snow
27 28 26 23 22 19 15 88 75 63 29.96 29.90 29.84 10 7 1 10 7 - 0.00 Snow
28 24 22 21 21 19 14 93 84 68 29.95 29.68 29.55 9 4 0 15 6 20 0.02 Fog , Snow
29 35 28 21 22 19 16 92 74 59 30.00 29.90 29.75 10 8 4 13 7 21 0.00 Snow
30 48 42 37 33 27 23 86 64 57 29.95 29.88 29.84 10 10 10 12 7 20 0.00 Rain
31 48 39 28 35 31 27 93 77 44 30.21 30.09 29.95 10 10 8 8 2 - 0.00