Weather History for Islip, NY

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Month of December, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 61 °F 47 °F 34 °F
Mean Temperature 54 °F 41 °F 31 °F
Min Temperature 50 °F 34 °F 24 °F
Degree Days  
Heating Degree Days (base 65) 34 24 11 753
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 4 0 0 6
Dew Point  
Dew Point 57 °F 33 °F 13 °F
Precipitation  
Precipitation 1.41 in 0.23 in 0.00 in 6.11 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 40 mph 10 mph 0 mph
Gust Wind 60 mph 24 mph 17 mph
Sea Level Pressure  
Sea Level Pressure 30.51 in 29.98 in 29.13 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 17, 2012 Rise Set
Actual Time 7:11 AM EST 4:26 PM EST
Civil Twilight 6:40 AM EST 4:57 PM EST
Nautical Twilight 6:05 AM EST 5:31 PM EST
Astronomical Twilight 5:32 AM EST 6:05 PM EST
Moon 10:16 AM EST (12/17) 9:46 PM EST (12/17)
Length of Visible Light 10h 17m
Length of Day
9h 15m
Waxing Crescent, 24% of the Moon is Illuminated
Dec 17
Waxing Crescent
Dec 20
First Quarter
Dec 28
Full
Jan 4
Last Quarter
Jan 11
New

Weather History Calendar

Precipitation Actual month total 6.11 Normal Month Total: 4.06
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Overcast
Actual:
42 | 38 T
Average:
48 | 33 0.14
Rain
Actual:
52 | 40 0.04
Average:
48 | 32 0.14
Fog
Actual:
61 | 38 0.00
Average:
47 | 32 0.14
Rain
Actual:
58 | 38 0.08
Average:
47 | 32 0.14
Partly Cloudy
Actual:
56 | 36 T
Average:
46 | 31 0.14
Scattered Clouds
Actual:
38 | 24 0.00
Average:
46 | 31 0.14
Rain
Actual:
49 | 24 0.07
Average:
46 | 31 0.14
Rain
Actual:
52 | 46 0.45
Average:
45 | 31 0.14
Rain
Actual:
50 | 43 0.26
Average:
45 | 30 0.14
Rain
Actual:
58 | 50 0.62
Average:
45 | 30 0.14
Rain
Actual:
54 | 39 0.14
Average:
44 | 30 0.14
Partly Cloudy
Actual:
44 | 31 0.00
Average:
44 | 29 0.14
Partly Cloudy
Actual:
46 | 28 0.00
Average:
44 | 29 0.13
Scattered Clouds
Actual:
50 | 27 0.00
Average:
43 | 29 0.13
Partly Cloudy
Actual:
48 | 26 0.00
Average:
43 | 28 0.13
Rain
Actual:
45 | 40 0.11
Average:
43 | 28 0.13
Rain
Actual:
49 | 42 0.53
Average:
42 | 28 0.13
Rain
Actual:
56 | 44 1.41
Average:
42 | 27 0.13
Scattered Clouds
Actual:
49 | 38 0.00
Average:
42 | 27 0.12
Rain
Actual:
47 | 31 0.02
Average:
42 | 27 0.13
Rain
Actual:
58 | 37 0.64
Average:
41 | 27 0.13
Snow
Actual:
40 | 34 T
Average:
41 | 26 0.12
Partly Cloudy
Actual:
44 | 30 0.00
Average:
41 | 26 0.13
Snow
Actual:
40 | 25 0.08
Average:
41 | 26 0.13
Rain
Actual:
40 | 31 0.13
Average:
40 | 26 0.13
Snow
Actual:
44 | 27 0.58
Average:
40 | 25 0.12
Rain
Actual:
47 | 30 0.53
Average:
40 | 25 0.12
Partly Cloudy
Actual:
40 | 26 0.00
Average:
40 | 25 0.12
Snow
Actual:
38 | 25 0.42
Average:
40 | 25 0.12
Scattered Clouds
Actual:
34 | 27 T
Average:
39 | 25 0.11
Partly Cloudy
Actual:
40 | 24 0.00
Average:
39 | 24 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

2012 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 42 40 38 42 36 31 89 80 70 30.51 30.45 30.41 10 7 2 16 11 21 T  
2 52 46 40 48 43 39 100 92 83 30.39 30.28 30.11 10 3 0 17 6 23 0.04 Fog , Rain
3 61 50 38 49 44 36 100 78 55 30.27 30.17 30.09 10 6 1 15 5 20 0.00 Fog
4 58 48 38 55 49 38 100 91 82 30.28 30.20 29.99 10 4 0 15 7 21 0.08 Fog , Rain
5 56 46 36 50 35 19 93 66 39 30.18 30.01 29.90 10 10 10 26 14 37 T  
6 38 31 24 20 17 15 68 56 44 30.34 30.28 30.19 10 10 10 20 7 24 0.00  
7 49 37 24 45 34 18 93 82 70 30.27 30.15 30.02 10 8 2 15 2 22 0.07 Rain
8 52 49 46 49 46 44 100 93 86 30.00 29.92 29.86 6 2 0 10 4 13 0.45 Fog , Rain
9 50 47 43 48 43 35 100 83 65 30.23 30.12 30.00 10 4 0 18 8 24 0.26 Fog , Rain
10 58 54 50 56 53 50 100 97 93 29.96 29.74 29.55 4 1 0 21 9 28 0.62 Fog , Rain
11 54 47 39 54 38 27 100 75 50 30.18 29.85 29.56 10 8 0 22 8 28 0.14 Fog , Rain
12 44 38 31 29 25 22 78 61 43 30.41 30.34 30.19 10 10 10 13 3 18 0.00  
13 46 37 28 30 25 21 85 63 40 30.45 30.39 30.31 10 10 8 13 3 16 0.00  
14 50 39 27 30 25 22 82 61 39 30.30 30.21 30.13 10 10 8 17 5 21 0.00  
15 48 37 26 33 27 23 92 69 45 30.31 30.25 30.22 10 9 5 12 3 14 0.00  
16 45 43 40 42 39 33 92 81 70 30.21 30.07 29.89 10 6 1 23 13 30 0.11 Rain
17 49 46 42 57 43 40 96 91 86 29.88 29.82 29.63 10 4 1 20 11 25 0.53 Rain
18 56 50 44 52 46 34 96 81 65 29.58 29.49 29.44 10 6 0 25 11 32 1.41 Rain
19 49 44 38 32 27 25 65 52 39 30.08 29.79 29.57 10 10 10 25 14 35 0.00  
20 47 39 31 40 30 24 76 63 49 30.19 30.09 29.87 10 10 10 21 8 29 0.02 Rain
21 58 48 37 53 40 26 93 74 55 29.79 29.34 29.13 10 8 1 40 21 60 0.64 Rain
22 40 37 34 31 23 17 82 61 40 29.78 29.52 29.31 10 10 4 33 18 44 T Snow
23 44 37 30 25 21 17 61 52 43 29.94 29.88 29.79 10 10 10 22 9 29 0.00  
24 40 33 25 32 23 17 89 69 48 30.08 30.00 29.93 10 8 2 8 4 13 0.08 Rain , Snow
25 40 36 31 38 32 23 92 78 64 30.22 30.01 29.87 10 7 3 18 10 24 0.13 Rain
26 44 36 27 40 28 21 89 76 63 30.27 30.03 29.48 10 7 3 31 14 44 0.58 Rain , Snow
27 47 39 30 45 34 20 93 78 63 29.77 29.40 29.21 10 6 2 38 20 49 0.53 Rain
28 40 33 26 23 21 19 75 62 48 30.06 29.97 29.78 10 10 10 21 10 28 0.00  
29 38 32 25 35 29 21 92 84 75 30.02 29.68 29.42 10 6 2 18 8 25 0.42 Rain , Snow
30 34 31 27 27 18 13 85 64 43 30.13 29.83 29.52 10 10 10 33 19 44 T  
31 40 32 24 24 19 14 68 58 48 30.15 30.05 29.86 10 10 10 23 11 29 0.00