Weather History for Jamestown, NY

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Month of September, 2011

  Max Avg Min Sum
Temperature  
Max Temperature 87 °F 68 °F 53 °F
Mean Temperature 76 °F 62 °F 48 °F
Min Temperature 66 °F 55 °F 42 °F
Degree Days  
Heating Degree Days (base 65) 16 5 0 146
Cooling Degree Days (base 65) 12 2 0 45
Growing Degree Days (base 50) 26 12 0 353
Dew Point  
Dew Point 72 °F 55 °F 34 °F
Precipitation  
Precipitation 0.26 in 0.03 in 0.00 in 0.88 in
Snowdepth - - - -
Wind  
Wind 21 mph 6 mph 0 mph
Gust Wind 30 mph 18 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.41 in 30.02 in 29.56 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Sep. 04, 2011 Rise Set
Actual Time 6:45 AM EDT 7:46 PM EDT
Civil Twilight 6:16 AM EDT 8:14 PM EDT
Nautical Twilight 5:42 AM EDT 8:48 PM EDT
Astronomical Twilight 5:06 AM EDT 9:24 PM EDT
Moon 2:37 PM EDT (9/4) 11:55 PM EDT (9/4)
Length of Visible Light 13h 58m
Length of Day
13h 00m
Waxing Crescent, 49% of the Moon is Illuminated
Sep 4
Waxing Crescent
Sep 4
First Quarter
Sep 12
Full
Sep 20
Last Quarter
Sep 27
New

Weather History Calendar

Precipitation Actual month total 0.88 Average Month Total: 4.97
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Thunderstorm
Actual:
78 | 62 0.11
Average:
76 | 50 0.12
Partly Cloudy
Actual:
84 | 64 0.00
Average:
76 | 50 0.04
Scattered Clouds
Actual:
87 | 66 0.00
Average:
76 | 49 0.42
Thunderstorm
Actual:
75 | 66 0.00
Average:
73 | 48 0.17
Mostly Cloudy
Actual:
62 | 55 0.08
Average:
72 | 48 0.08
Mostly Cloudy
Actual:
60 | 51 0.00
Average:
73 | 47 0.16
Overcast
Actual:
62 | 53 0.06
Average:
73 | 47 0.20
Mostly Cloudy
Actual:
71 | 60 0.00
Average:
74 | 46 0.05
Thunderstorm
Actual:
75 | 62 0.09
Average:
74 | 49 0.07
Mostly Cloudy
Actual:
66 | 59 0.00
Average:
75 | 48 0.20
Thunderstorm
Actual:
69 | 57 0.00
Average:
73 | 49 0.06
Partly Cloudy
Actual:
73 | 55 0.00
Average:
74 | 48 0.12
Thunderstorm
Actual:
78 | 59 0.00
Average:
74 | 46 0.12
Partly Cloudy
Actual:
66 | 53 0.00
Average:
75 | 47 0.27
Mostly Cloudy
Actual:
53 | 44 0.26
Average:
72 | 47 0.30
Scattered Clouds
Actual:
55 | 42 0.00
Average:
69 | 43 0.09
Partly Cloudy
Actual:
59 | 44 0.00
Average:
66 | 45 0.16
Scattered Clouds
Actual:
64 | 46 0.00
Average:
69 | 45 0.22
Partly Cloudy
Actual:
62 | 48 0.24
Average:
71 | 46 0.18
Partly Cloudy
Actual:
66 | 55 0.04
Average:
71 | 46 0.13
Partly Cloudy
Actual:
73 | 55 0.00
Average:
70 | 45 0.24
Partly Cloudy
Actual:
71 | 60 0.00
Average:
65 | 45 0.30
Partly Cloudy
Actual:
68 | 55 0.00
Average:
63 | 42 0.15
Partly Cloudy
Actual:
66 | 51 0.00
Average:
62 | 40 0.21
Partly Cloudy
Actual:
77 | 55 0.00
Average:
63 | 38 0.17
Scattered Clouds
Actual:
77 | 62 0.00
Average:
66 | 40 0.14
Partly Cloudy
Actual:
71 | 60 0.00
Average:
65 | 43 0.16
Partly Cloudy
Actual:
64 | 53 0.00
Average:
65 | 40 0.12
Mostly Cloudy
Actual:
60 | 51 0.00
Average:
65 | 40 0.21
Overcast
Actual:
55 | 48 0.00
Average:
66 | 40 0.11
 

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

2011 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 78 70 62 68 63 61 94 83 65 30.15 30.10 30.03 10 9 3 13 7 17 0.11 Thunderstorm
2 84 74 64 70 66 63 100 79 51 30.07 30.03 29.98 10 6 0 10 5 - 0.00  
3 87 76 66 72 68 66 100 77 52 30.00 29.97 29.91 10 6 0 10 7 - 0.00  
4 75 70 66 68 65 63 94 82 69 29.94 29.88 29.83 10 8 2 18 8 26 0.00 Thunderstorm
5 62 58 55 63 56 52 100 89 82 29.96 29.89 29.83 10 9 3 12 6 - 0.08  
6 60 56 51 52 51 50 94 85 68 30.13 30.08 29.99 10 10 6 16 8 22 0.00  
7 62 58 53 59 55 52 94 90 82 30.10 30.04 29.97 10 10 9 14 8 22 0.06  
8 71 66 60 63 60 57 94 86 73 30.04 30.01 29.99 10 10 5 10 8 16 0.00  
9 75 68 62 66 63 61 94 90 69 30.01 29.96 29.92 10 9 0 10 4 - 0.09 Thunderstorm
10 66 62 59 61 58 54 94 85 68 30.06 30.01 29.96 10 9 0 7 4 - 0.00  
11 69 63 57 61 58 55 94 86 73 30.09 30.06 30.01 10 10 5 10 5 - 0.00 Thunderstorm
12 73 64 55 63 58 54 100 84 57 30.08 30.03 29.97 10 6 0 12 6 - 0.00  
13 78 68 59 63 59 57 94 77 50 29.98 29.90 29.83 10 8 3 21 9 30 0.00 Thunderstorm
14 66 60 53 57 52 48 94 78 52 30.02 29.98 29.93 10 10 8 12 6 - 0.00  
15 53 48 44 52 43 34 94 82 50 30.18 30.08 30.01 10 9 2 20 9 24 0.26  
16 55 48 42 39 37 34 81 65 47 30.36 30.33 30.27 10 10 10 10 6 16 0.00  
17 59 52 44 45 41 37 87 69 48 30.39 30.36 30.34 10 10 10 9 4 16 0.00  
18 64 55 46 46 43 41 87 67 45 30.41 30.36 30.28 10 10 10 10 5 17 0.00  
19 62 55 48 54 48 43 94 79 63 30.27 30.13 30.00 10 10 7 18 9 23 0.24  
20 66 60 55 57 55 52 100 83 60 30.13 30.08 29.98 10 9 2 12 7 16 0.04  
21 73 64 55 61 58 54 100 85 64 30.15 30.11 30.03 10 8 1 16 7 23 0.00  
22 71 66 60 63 58 46 100 79 52 30.13 30.08 30.04 10 7 2 12 6 - 0.00  
23 68 62 55 63 57 45 94 84 55 30.15 30.00 29.89 10 9 1 12 6 20 0.00  
24 66 58 51 55 53 50 100 84 60 30.12 30.07 30.00 10 9 0 12 4 - 0.00  
25 77 66 55 61 58 54 94 79 53 30.14 30.10 30.03 10 10 8 13 4 16 0.00  
26 77 70 62 63 61 59 94 80 57 30.01 29.96 29.87 10 10 6 14 7 18 0.00  
27 71 66 60 63 60 52 100 83 50 29.93 29.90 29.86 10 10 6 12 7 - 0.00  
28 64 58 53 59 55 52 100 84 64 29.93 29.88 29.83 10 7 0 8 4 - 0.00  
29 60 56 51 54 52 46 100 89 59 29.84 29.74 29.66 10 5 0 16 5 22 0.00  
30 55 52 48 52 47 45 94 83 72 29.67 29.60 29.56 10 9 2 17 11 28 0.00