History for Williamsport, PA

Month of December, 2011 — View Current Conditions
Month of December, 2011
« Previous Month
Next Month »
Daily Weekly Monthly Custom
  Max Avg Min Sum
Temperature
Max Temperature 57 °F 44 °F 32 °F
Mean Temperature 51 °F 37 °F 26 °F
Min Temperature 45 °F 29 °F 18 °F
Degree Days
Heating Degree Days (base 65) 39 28 14 878
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 2 0 0 2
Dew Point
Dew Point 54 °F 29 °F 10 °F
Precipitation
Precipitation 1.55 in 0.16 in 0.00 in 3.68 in
Snowdepth 1.0 in 0.0 in 0.0 in -
Wind
Wind 30 mph 5 mph 0 mph
Gust Wind 41 mph 21 mph 16 mph
Sea Level Pressure
Sea Level Pressure 30.67 in 30.15 in 29.34 in
Monthly Graph
Certify This Report
History Location
Airport:
 
Trip Planner
Search our historical database for the weather conditions in past years. The results will help you decide how hot, cold, wet, or windy it will be!
Date:
Astronomy
May. 24, 2013 Rise Set
Actual Time 7:26 AM EST 4:39 PM EST
Civil Twilight 6:55 AM EST 5:10 PM EST
Nautical Twilight 6:20 AM EST 5:45 PM EST
Astronomical Twilight 5:47 AM EST 6:19 PM EST
Moon 11:14 PM EST (12/16) 11:08 AM EST (12/16)
Length Of Visible Light 10h 15m
Length of Day
9h 12m
Waning Gibbous, 65% of the Moon is Illuminated
Dec 16
Waning Gibbous
Dec 17
Last Quarter
Dec 24
New
Jan 1
First Quarter
Jan 9
Full
Visit Astronomy
Monthly Calendar Overview
Print This Calendar Precipitation: Actual month total 3.68 Normal month total 2.93
« Previous Month « 2010 December 2011 2012 » Next Month »
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
1 Scattered Clouds
Actual: 49 | 29
Precip: 0.00
Average: 43 | 29
Precip: 0.12
2 Partly Cloudy
Actual: 45 | 25
Precip: 0.00
Average: 43 | 29
Precip: 0.11
3 Clear
Actual: 44 | 25
Precip: 0.00
Average: 42 | 28
Precip: 0.12
4 Partly Cloudy
Actual: 50 | 34
Precip: 0.00
Average: 42 | 28
Precip: 0.12
5 Rain
Actual: 55 | 39
Precip: 0.01
Average: 41 | 28
Precip: 0.11
6 Rain
Actual: 57 | 45
Precip: 0.23
Average: 41 | 27
Precip: 0.11
7 Snow
Actual: 45 | 33
Precip: 1.55
Average: 41 | 27
Precip: 0.11
8 Partly Cloudy
Actual: 41 | 29
Precip: T
Average: 40 | 27
Precip: 0.11
9 Partly Cloudy
Actual: 45 | 28
Precip: 0.00
Average: 40 | 26
Precip: 0.12
10 Partly Cloudy
Actual: 38 | 24
Precip: T
Average: 40 | 26
Precip: 0.11
11 Clear
Actual: 36 | 19
Precip: 0.00
Average: 39 | 26
Precip: 0.11
12 Clear
Actual: 39 | 18
Precip: 0.00
Average: 39 | 25
Precip: 0.11
13 Clear
Actual: 44 | 19
Precip: 0.00
Average: 39 | 25
Precip: 0.09
14 Rain
Actual: 44 | 26
Precip: 0.05
Average: 38 | 25
Precip: 0.09
15 Rain
Actual: 48 | 41
Precip: 0.08
Average: 38 | 24
Precip: 0.09
16 Partly Cloudy
Actual: 51 | 35
Precip: 0.00
Average: 38 | 24
Precip: 0.09
17 Snow
Actual: 37 | 26
Precip: T
Average: 37 | 24
Precip: 0.08
18 Partly Cloudy
Actual: 35 | 20
Precip: 0.00
Average: 37 | 24
Precip: 0.08
19 Rain
Actual: 43 | 24
Precip: T
Average: 37 | 23
Precip: 0.08
20 Rain
Actual: 42 | 36
Precip: 0.03
Average: 37 | 23
Precip: 0.08
21 Thunderstorm
Actual: 49 | 37
Precip: 0.53
Average: 36 | 23
Precip: 0.09
22 Rain
Actual: 51 | 43
Precip: 0.22
Average: 36 | 22
Precip: 0.08
23 Rain
Actual: 45 | 28
Precip: 0.34
Average: 36 | 22
Precip: 0.09
24 Snow
Actual: 36 | 27
Precip: T
Average: 36 | 22
Precip: 0.08
25 Partly Cloudy
Actual: 45 | 30
Precip: 0.00
Average: 36 | 22
Precip: 0.09
26 Partly Cloudy
Actual: 43 | 26
Precip: T
Average: 36 | 21
Precip: 0.08
27 Rain
Actual: 43 | 26
Precip: 0.62
Average: 35 | 21
Precip: 0.08
28 Rain
Actual: 42 | 25
Precip: T
Average: 35 | 21
Precip: 0.08
29 Snow
Actual: 32 | 19
Precip: 0.01
Average: 35 | 21
Precip: 0.07
30 Rain
Actual: 40 | 32
Precip: T
Average: 35 | 21
Precip: 0.08
31 Rain
Actual: 45 | 30
Precip: 0.01
Average: 35 | 20
Precip: 0.07
 
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 Observations
2011 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 49 39 29 30 28 25 85 66 46 30.32 30.25 30.12 10 10 10 15 5 18 0.00  
2 45 35 25 31 27 23 100 76 51 30.57 30.37 30.29 10 8 1 16 3 22 0.00  
3 44 35 25 28 26 22 92 71 49 30.67 30.60 30.53 10 10 8 12 2 16 0.00  
4 50 42 34 36 34 26 79 68 56 30.51 30.42 30.34 10 10 9 18 7 28 0.00  
5 55 47 39 48 39 36 86 75 63 30.34 30.24 30.09 10 10 6 17 5 24 0.01 Rain
6 57 51 45 54 50 41 100 91 82 30.06 29.99 29.92 10 5 1 17 3 29 0.23 Rain
7 45 39 33 43 37 30 96 91 85 29.94 29.81 29.70 10 6 2 12 5 15 1.55 Rain , Snow
8 41 35 29 30 26 23 82 71 59 30.31 30.11 29.80 10 10 9 24 8 33 T  
9 45 37 28 32 27 24 89 69 49 30.31 30.25 30.19 10 9 6 13 2 14 0.00  
10 38 31 24 29 20 11 92 64 35 30.53 30.36 30.24 10 9 6 17 6 22 T  
11 36 28 19 20 18 16 88 68 47 30.67 30.60 30.53 10 10 8 7 2 8 0.00  
12 39 29 18 23 19 15 88 66 44 30.60 30.53 30.45 10 8 5 8 1 10 0.00  
13 44 32 19 25 22 17 92 69 45 30.49 30.45 30.39 10 8 4 12 2 15 0.00  
14 44 35 26 36 30 26 92 71 49 30.43 30.34 30.20 10 8 5 16 4 24 0.05 Rain
15 48 45 41 45 40 33 100 80 60 30.17 29.86 29.76 10 6 0 17 8 28 0.08 Fog , Rain
16 51 43 35 34 24 21 86 64 41 30.19 30.10 29.80 10 10 10 30 12 41 0.00  
17 37 32 26 29 22 15 64 56 47 30.21 30.17 30.14 10 10 8 13 6 17 T Snow
18 35 28 20 21 18 14 81 68 54 30.30 30.26 30.21 10 10 10 8 1 10 0.00  
19 43 34 24 33 26 21 88 70 51 30.22 30.08 29.99 10 9 6 9 2 10 T Rain
20 42 39 36 36 33 29 92 76 60 30.19 30.12 30.02 10 10 6 12 3 14 0.03 Rain
21 49 43 37 45 40 34 92 88 83 30.06 29.83 29.69 10 5 1 16 7 25 0.53 Rain , Thunderstorm
22 51 47 43 43 42 40 89 80 71 30.11 30.01 29.88 10 9 2 10 2 14 0.22 Rain
23 45 37 28 43 36 21 100 80 59 30.25 30.01 29.86 10 8 2 13 5 18 0.34 Rain
24 36 32 27 25 21 18 85 66 47 30.45 30.38 30.25 10 10 8 14 3 21 T Snow
25 45 38 30 31 24 19 85 65 45 30.35 30.12 29.94 10 10 10 20 6 25 0.00  
26 43 35 26 32 26 23 89 69 49 30.28 30.20 30.00 10 10 10 20 6 29 T  
27 43 35 26 39 34 23 100 80 59 30.14 29.58 29.34 10 7 2 18 7 31 0.62 Rain
28 42 34 25 34 21 11 82 64 46 29.96 29.69 29.43 10 10 10 30 15 39 T Rain
29 32 26 19 28 17 10 85 68 50 30.07 29.98 29.93 10 9 4 14 6 20 0.01 Snow
30 40 36 32 32 30 28 89 80 70 30.01 29.94 29.84 10 8 6 13 5 17 T Rain
31 45 38 30 39 36 31 96 86 76 30.10 29.93 29.81 10 9 3 14 4 18 0.01 Rain
Comma Delimited File