Weather History for Islip, NY

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Month of May, 2014

  Max Avg Min Sum
Temperature  
Max Temperature 88 °F 70 °F 57 °F
Mean Temperature 74 °F 62 °F 54 °F
Min Temperature 62 °F 53 °F 44 °F
Degree Days  
Heating Degree Days (base 65) 11 4 0 127
Cooling Degree Days (base 65) 9 1 0 29
Growing Degree Days (base 50) 25 11 4 347
Dew Point  
Dew Point 63 °F 48 °F 25 °F
Precipitation  
Precipitation 0.54 in 0.10 in 0.00 in 2.66 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 29 mph 9 mph 0 mph
Gust Wind 43 mph 23 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.32 in 29.99 in 29.60 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

May. 20, 2014 Rise Set
Actual Time 5:30 AM EDT 8:07 PM EDT
Civil Twilight 4:59 AM EDT 8:39 PM EDT
Nautical Twilight 4:19 AM EDT 9:19 PM EDT
Astronomical Twilight 3:35 AM EDT 10:03 PM EDT
Moon 12:35 AM EDT (5/20) 11:35 AM EDT (5/20)
Length of Visible Light 15h 40m
Length of Day
14h 36m
Waning Gibbous, 60% of the Moon is Illuminated
May 20
Waning Gibbous
May 21
Last Quarter
May 28
New
Jun 5
First Quarter
Jun 13
Full

Weather History Calendar

Precipitation Actual month total 2.66 Normal Month Total: 3.78
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Rain
Actual:
66 | 54 0.54
Average:
63 | 45 0.11
Partly Cloudy
Actual:
66 | 50 0.01
Average:
63 | 46 0.11
Thunderstorm
Actual:
68 | 44 0.01
Average:
64 | 46 0.12
Rain
Actual:
65 | 50 T
Average:
64 | 46 0.12
Partly Cloudy
Actual:
68 | 48 0.00
Average:
64 | 46 0.13
Partly Cloudy
Actual:
70 | 48 0.00
Average:
65 | 47 0.12
Partly Cloudy
Actual:
65 | 46 0.00
Average:
65 | 47 0.12
Rain
Actual:
57 | 51 0.27
Average:
65 | 47 0.11
Thunderstorm
Actual:
65 | 55 0.14
Average:
65 | 48 0.11
Thunderstorm
Actual:
78 | 54 0.12
Average:
66 | 48 0.11
Rain
Actual:
80 | 56 0.08
Average:
66 | 48 0.11
Partly Cloudy
Actual:
80 | 53 0.00
Average:
66 | 48 0.12
Partly Cloudy
Actual:
70 | 50 0.00
Average:
67 | 49 0.11
Mostly Cloudy
Actual:
62 | 48 0.00
Average:
67 | 49 0.11
Rain
Actual:
73 | 61 0.06
Average:
67 | 49 0.11
Rain
Actual:
69 | 62 0.49
Average:
68 | 50 0.11
Rain
Actual:
71 | 54 0.46
Average:
68 | 50 0.11
Scattered Clouds
Actual:
69 | 50 0.00
Average:
68 | 50 0.12
Partly Cloudy
Actual:
73 | 51 T
Average:
68 | 51 0.12
Partly Cloudy
Actual:
78 | 53 0.00
Average:
69 | 51 0.12
Partly Cloudy
Actual:
75 | 58 0.00
Average:
69 | 51 0.13
Rain
Actual:
61 | 56 0.26
Average:
69 | 52 0.13
Rain
Actual:
65 | 57 0.20
Average:
70 | 52 0.13
Mostly Cloudy
Actual:
69 | 55 0.01
Average:
70 | 52 0.14
Partly Cloudy
Actual:
77 | 54 0.00
Average:
70 | 53 0.13
Partly Cloudy
Actual:
86 | 57 0.00
Average:
71 | 53 0.13
Partly Cloudy
Actual:
88 | 60 0.00
Average:
71 | 53 0.13
Overcast
Actual:
60 | 52 T
Average:
71 | 54 0.14
Partly Cloudy
Actual:
63 | 50 0.00
Average:
71 | 54 0.14
Rain
Actual:
71 | 52 0.01
Average:
72 | 55 0.14
Partly Cloudy
Actual:
72 | 51 T
Average:
72 | 55 0.14
 

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

2014 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
May high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 66 60 54 58 54 51 100 89 78 29.98 29.79 29.68 10 4 0 26 11 37 0.54 Fog , Rain
2 66 58 50 55 42 36 100 70 40 29.83 29.75 29.69 10 10 9 21 8 25 0.01  
3 68 56 44 48 40 36 83 59 34 29.87 29.81 29.75 10 10 5 20 8 25 0.01 Rain , Thunderstorm
4 65 58 50 49 38 25 83 56 28 29.76 29.70 29.60 10 10 9 29 15 38 T Rain
5 68 58 48 41 35 29 66 45 24 29.86 29.81 29.74 10 10 10 24 11 32 0.00  
6 70 59 48 38 33 29 66 45 23 30.05 29.92 29.85 10 10 10 20 9 26 0.00  
7 65 56 46 44 33 28 77 52 26 30.22 30.17 30.07 10 10 10 17 7 22 0.00  
8 57 54 51 54 51 44 96 84 71 30.19 30.15 30.09 10 4 0 9 4 13 0.27 Rain
9 65 60 55 59 55 54 93 83 73 30.19 30.13 30.01 10 5 0 18 9 24 0.14 Fog , Rain , Thunderstorm
10 78 66 54 62 58 53 100 80 60 30.01 29.90 29.83 10 5 0 20 9 24 0.12 Fog , Rain , Thunderstorm
11 80 68 56 62 49 39 93 59 25 30.06 29.99 29.86 10 10 5 18 8 24 0.08 Rain
12 80 67 53 56 53 48 86 63 39 30.12 30.07 30.03 10 10 10 20 6 25 0.00  
13 70 60 50 57 45 39 90 63 35 30.28 30.18 30.01 10 10 9 20 10 30 0.00  
14 62 55 48 57 49 43 90 79 67 30.32 30.27 30.25 10 10 6 12 6 15 0.00  
15 73 67 61 63 61 59 93 83 73 30.24 30.19 30.12 10 9 5 23 15 29 0.06 Rain
16 69 66 62 63 61 59 93 87 81 30.11 29.98 29.82 10 6 1 29 20 43 0.49 Rain
17 71 63 54 63 53 42 97 67 37 30.08 29.94 29.81 10 8 2 18 9 23 0.46 Rain
18 69 60 50 46 38 33 72 51 29 30.16 30.11 30.08 10 10 10 20 10 26 0.00  
19 73 62 51 41 36 32 55 40 25 30.18 30.10 30.04 10 10 10 22 11 28 T  
20 78 66 53 49 41 33 64 42 19 30.09 30.02 29.96 10 10 10 21 10 29 0.00  
21 75 67 58 52 47 40 72 52 31 29.97 29.94 29.90 10 10 10 14 6 20 0.00  
22 61 59 56 55 53 51 86 79 72 29.89 29.85 29.83 10 7 1 15 6 17 0.26 Rain
23 65 61 57 59 56 53 93 86 78 29.93 29.87 29.84 10 4 0 12 4 15 0.20 Rain
24 69 62 55 55 52 48 93 73 52 30.07 29.98 29.90 10 10 1 15 7 20 0.01  
25 77 66 54 55 52 49 87 63 38 30.08 30.05 30.02 10 9 1 15 7 20 0.00  
26 86 72 57 57 54 45 87 56 25 30.03 29.96 29.88 10 10 10 22 9 26 0.00  
27 88 74 60 61 55 52 78 55 31 29.87 29.83 29.76 10 10 10 20 8 25 0.00  
28 60 56 52 55 49 43 93 82 71 30.17 29.97 29.82 10 10 7 21 13 28 T  
29 63 57 50 45 42 38 77 60 42 30.21 30.18 30.16 10 10 10 16 8 22 0.00  
30 71 62 52 56 50 44 86 67 47 30.14 30.06 29.99 10 10 10 15 5 18 0.01 Rain
31 72 62 51 52 48 42 86 63 40 30.28 30.15 30.04 10 10 10 22 10 29 T