Weather History for Williamsport, PA

Change the Weather History Date:

Month of August, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 89 °F 82 °F 74 °F
Mean Temperature 78 °F 71 °F 62 °F
Min Temperature 69 °F 60 °F 47 °F
Degree Days  
Heating Degree Days (base 65) 3 0 0 5
Cooling Degree Days (base 65) 13 6 0 191
Growing Degree Days (base 50) 28 21 12 649
Dew Point  
Dew Point 72 °F 59 °F 44 °F
Precipitation  
Precipitation 1.18 in 0.06 in 0.00 in 1.76 in
Snowdepth - - - -
Wind  
Wind 24 mph 4 mph 0 mph
Gust Wind 31 mph 20 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.42 in 30.02 in 29.70 in

Monthly Weather History Graph

Monthly Weather History Graph

Search for Another Location

Airport:

Trip Planner

Search our weather history database for the weather conditions in past years. The results will help you decide how hot, cold, wet, or windy it might be!

Date:

Astronomy

Aug. 21, 2013 Rise Set
Actual Time 6:23 AM EDT 7:57 PM EDT
Civil Twilight 5:54 AM EDT 8:26 PM EDT
Nautical Twilight 5:18 AM EDT 9:01 PM EDT
Astronomical Twilight 4:41 AM EDT 9:38 PM EDT
Moon 8:03 PM EDT (8/21) 7:01 AM EDT (8/21)
Length of Visible Light 14h 32m
Length of Day
13h 34m
Full, 100% of the Moon is Illuminated
Aug 21
Full
Aug 28
Last Quarter
Sep 5
New
Sep 12
First Quarter
Sep 19
Full

Weather History Calendar

Precipitation Actual month total 1.76 Normal Month Total: 3.86
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Rain
Actual:
81 | 64 0.01
Average:
83 | 62 0.13
Scattered Clouds
Actual:
82 | 58 0.00
Average:
83 | 62 0.14
Rain
Actual:
84 | 61 0.12
Average:
83 | 62 0.14
Scattered Clouds
Actual:
78 | 56 0.00
Average:
83 | 62 0.13
Scattered Clouds
Actual:
76 | 53 0.00
Average:
83 | 62 0.14
Partly Cloudy
Actual:
78 | 54 0.00
Average:
83 | 62 0.13
Rain
Actual:
77 | 65 0.01
Average:
83 | 62 0.13
Partly Cloudy
Actual:
85 | 64 0.01
Average:
83 | 62 0.13
Thunderstorm
Actual:
83 | 68 1.18
Average:
83 | 62 0.13
Scattered Clouds
Actual:
85 | 61 0.00
Average:
83 | 62 0.13
Partly Cloudy
Actual:
79 | 58 T
Average:
83 | 62 0.11
Partly Cloudy
Actual:
84 | 59 T
Average:
82 | 61 0.12
Thunderstorm
Actual:
84 | 60 0.04
Average:
82 | 61 0.12
Partly Cloudy
Actual:
74 | 52 0.00
Average:
82 | 61 0.12
Scattered Clouds
Actual:
77 | 47 0.00
Average:
82 | 61 0.12
Scattered Clouds
Actual:
79 | 51 0.00
Average:
82 | 61 0.11
Scattered Clouds
Actual:
80 | 54 0.00
Average:
82 | 61 0.13
Scattered Clouds
Actual:
75 | 59 0.00
Average:
82 | 61 0.12
Rain
Actual:
80 | 60 0.02
Average:
81 | 61 0.12
Partly Cloudy
Actual:
86 | 61 0.00
Average:
81 | 61 0.12
Partly Cloudy
Actual:
86 | 57 0.00
Average:
81 | 60 0.13
Thunderstorm
Actual:
88 | 66 0.27
Average:
81 | 60 0.12
Partly Cloudy
Actual:
84 | 58 0.00
Average:
81 | 60 0.12
Clear
Actual:
80 | 53 0.00
Average:
81 | 60 0.12
Fog
Actual:
82 | 52 0.00
Average:
80 | 60 0.12
Rain
Actual:
89 | 62 0.04
Average:
80 | 60 0.12
Partly Cloudy
Actual:
86 | 66 0.00
Average:
80 | 59 0.12
Rain
Actual:
79 | 69 0.04
Average:
80 | 59 0.12
Partly Cloudy
Actual:
88 | 66 0.00
Average:
79 | 59 0.12
Fog
Actual:
88 | 63 0.00
Average:
79 | 59 0.13
Thunderstorm
Actual:
87 | 68 0.02
Average:
79 | 58 0.12
 

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
Aug high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 81 73 64 67 64 62 93 74 54 29.96 29.86 29.78 10 9 2 15 3 23 0.01 Rain
2 82 70 58 63 57 52 93 68 42 29.94 29.89 29.86 10 10 5 16 5 23 0.00  
3 84 73 61 64 58 49 93 62 31 29.93 29.90 29.85 10 9 6 14 3 23 0.12 Rain
4 78 67 56 56 52 49 93 66 38 30.04 29.96 29.92 10 10 10 15 5 21 0.00  
5 76 65 53 56 51 46 89 63 36 30.12 30.06 30.02 10 10 10 10 4 14 0.00  
6 78 66 54 59 55 51 86 67 48 30.08 30.06 30.03 10 10 10 16 4 28 0.00  
7 77 71 65 68 64 60 87 80 73 30.07 30.03 29.96 10 8 2 20 6 26 0.01 Rain
8 85 75 64 70 66 61 93 77 61 30.04 29.99 29.93 10 10 7 15 6 22 0.01  
9 83 76 68 72 71 68 93 81 69 29.94 29.87 29.82 10 8 0 15 4 22 1.18 Fog , Rain , Thunderstorm
10 85 73 61 66 59 52 93 64 34 30.08 30.01 29.95 10 10 7 15 6 20 0.00  
11 79 69 58 63 57 54 87 67 47 30.15 30.08 30.01 10 10 10 8 1 13 T  
12 84 72 59 64 59 54 93 66 39 30.05 30.00 29.91 10 10 10 16 2 20 T  
13 84 72 60 65 60 45 93 68 43 29.86 29.79 29.70 10 9 5 18 6 24 0.04 Rain , Thunderstorm
14 74 63 52 48 46 44 77 58 38 30.09 29.95 29.87 10 10 10 21 8 28 0.00  
15 77 62 47 54 48 44 93 63 33 30.19 30.13 30.07 10 10 10 10 3 15 0.00  
16 79 65 51 56 51 46 89 61 32 30.21 30.17 30.14 10 10 10 9 2 16 0.00  
17 80 67 54 63 53 48 93 64 35 30.30 30.25 30.21 10 10 10 8 2 12 0.00  
18 75 67 59 60 57 56 84 69 53 30.26 30.21 30.15 10 10 9 7 1 - 0.00  
19 80 70 60 62 59 56 90 69 48 30.15 30.10 30.04 10 10 9 9 1 12 0.02 Rain
20 86 74 61 63 58 51 93 63 32 30.18 30.12 30.08 10 9 4 9 2 13 0.00  
21 86 72 57 65 60 55 93 69 44 30.22 30.15 30.04 10 8 2 7 2 10 0.00  
22 88 77 66 66 64 62 100 72 43 30.06 29.97 29.88 10 7 1 24 6 31 0.27 Rain , Thunderstorm
23 84 71 58 64 58 47 93 62 30 30.17 30.03 29.95 10 9 5 14 4 20 0.00  
24 80 67 53 55 53 49 93 64 35 30.33 30.28 30.19 10 10 10 10 2 22 0.00  
25 82 67 52 59 54 51 100 70 39 30.42 30.34 30.20 10 7 0 12 3 17 0.00 Fog
26 89 76 62 68 61 58 90 66 42 30.21 30.07 29.94 10 10 5 16 4 18 0.04 Rain
27 86 76 66 68 66 64 93 72 51 29.96 29.91 29.86 10 9 7 10 4 16 0.00  
28 79 74 69 70 68 66 97 87 76 29.90 29.87 29.82 10 6 3 6 1 15 0.04 Rain
29 88 77 66 71 67 62 93 68 43 30.02 29.96 29.90 10 8 4 14 2 20 0.00  
30 88 76 63 69 65 62 93 72 50 30.01 29.95 29.80 10 6 0 14 4 18 0.00 Fog
31 87 78 68 71 68 65 90 72 53 29.83 29.79 29.74 10 8 4 13 4 18 0.02 Rain , Thunderstorm