History for Islip, NY

Month of September, 2012 View Current Conditions
Month of September, 2012
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  Max Avg Min Sum
Temperature
Max Temperature 86 °F 74 °F 62 °F
Mean Temperature 78 °F 67 °F 58 °F
Min Temperature 71 °F 58 °F 44 °F
Degree Days
Heating Degree Days (base 65) 7 2 0 53
Cooling Degree Days (base 65) 13 3 0 100
Growing Degree Days (base 50) 28 16 7 490
Dew Point
Dew Point 75 °F 58 °F 37 °F
Precipitation
Precipitation 1.65 in 0.12 in 0.00 in 3.56 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind
Wind 29 mph 7 mph 0 mph
Gust Wind 41 mph 22 mph 17 mph
Sea Level Pressure
Sea Level Pressure 30.37 in 30.02 in 29.60 in
Monthly Graph
History Location
Airport:
 
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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. 19, 2013 Rise Set
Actual Time 6:23 AM EDT 7:17 PM EDT
Civil Twilight 5:55 AM EDT 7:45 PM EDT
Nautical Twilight 5:22 AM EDT 8:18 PM EDT
Astronomical Twilight 4:48 AM EDT 8:52 PM EDT
Moon 9:43 PM EDT (9/5) 11:27 AM EDT (9/5)
Length Of Visible Light 13h 49m
Length of Day
12h 53m
Waning Gibbous, 76% of the Moon is Illuminated
Sep 5
Waning Gibbous
Sep 8
Last Quarter
Sep 15
New
Sep 22
First Quarter
Sep 29
Full
Monthly Calendar Overview
Print This Calendar Precipitation: Actual month total 3.56 Normal month total 3.58
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
1 Partly Cloudy
Actual: 86 | 69
Precip: 0.00
Average: 78 | 63
Precip: 0.13
2 Mostly Cloudy
Actual: 79 | 68
Precip: 0.00
Average: 78 | 63
Precip: 0.12
3 Partly Cloudy
Actual: 79 | 68
Precip: 0.00
Average: 78 | 62
Precip: 0.13
4 Rain
Actual: 79 | 69
Precip: 1.65
Average: 77 | 62
Precip: 0.12
5 Thunderstorm
Actual: 80 | 71
Precip: 0.74
Average: 77 | 62
Precip: 0.11
6 Partly Cloudy
Actual: 79 | 67
Precip: 0.00
Average: 77 | 61
Precip: 0.12
7 Scattered Clouds
Actual: 83 | 67
Precip: 0.00
Average: 77 | 61
Precip: 0.11
8 Rain
Actual: 80 | 64
Precip: 0.12
Average: 76 | 61
Precip: 0.11
9 Rain
Actual: 76 | 64
Precip: 0.03
Average: 76 | 60
Precip: 0.11
10 Scattered Clouds
Actual: 73 | 58
Precip: 0.00
Average: 76 | 60
Precip: 0.11
11 Scattered Clouds
Actual: 71 | 51
Precip: 0.00
Average: 76 | 60
Precip: 0.10
12 Clear
Actual: 76 | 53
Precip: 0.00
Average: 75 | 59
Precip: 0.12
13 Clear
Actual: 76 | 57
Precip: 0.00
Average: 75 | 59
Precip: 0.11
14 Partly Cloudy
Actual: 77 | 59
Precip: 0.00
Average: 75 | 58
Precip: 0.12
15 Partly Cloudy
Actual: 73 | 55
Precip: 0.00
Average: 74 | 58
Precip: 0.12
16 Partly Cloudy
Actual: 73 | 50
Precip: 0.00
Average: 74 | 58
Precip: 0.12
17 Partly Cloudy
Actual: 75 | 49
Precip: 0.00
Average: 74 | 57
Precip: 0.12
18 Rain
Actual: 75 | 60
Precip: 0.67
Average: 73 | 57
Precip: 0.12
19 Partly Cloudy
Actual: 71 | 53
Precip: 0.00
Average: 73 | 56
Precip: 0.11
20 Partly Cloudy
Actual: 69 | 52
Precip: 0.00
Average: 73 | 56
Precip: 0.12
21 Partly Cloudy
Actual: 72 | 54
Precip: 0.00
Average: 72 | 55
Precip: 0.13
22 Rain
Actual: 72 | 51
Precip: 0.02
Average: 72 | 55
Precip: 0.12
23 Partly Cloudy
Actual: 69 | 50
Precip: 0.00
Average: 71 | 55
Precip: 0.11
24 Partly Cloudy
Actual: 68 | 48
Precip: 0.00
Average: 71 | 54
Precip: 0.13
25 Scattered Clouds
Actual: 71 | 44
Precip: 0.00
Average: 71 | 54
Precip: 0.12
26 Mostly Cloudy
Actual: 74 | 65
Precip: T
Average: 70 | 53
Precip: 0.12
27 Rain
Actual: 76 | 62
Precip: 0.01
Average: 70 | 53
Precip: 0.13
28 Thunderstorm
Actual: 72 | 59
Precip: 0.17
Average: 69 | 52
Precip: 0.13
29 Rain
Actual: 62 | 55
Precip: 0.07
Average: 69 | 52
Precip: 0.13
30 Thunderstorm
Actual: 68 | 51
Precip: 0.08
Average: 69 | 51
Precip: 0.13
 
Daily Observations
2012 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 86 78 69 67 65 62 90 71 51 30.06 29.97 29.89 10 10 8 16 8 22 0.00  
2 79 74 68 68 65 62 90 76 62 30.08 30.06 30.01 10 10 9 13 6 17 0.00  
3 79 74 68 67 63 57 90 71 52 30.17 30.12 30.08 10 10 10 16 10 22 0.00  
4 79 74 69 75 70 64 94 84 73 30.10 30.01 29.85 10 5 1 16 7 21 1.65 Rain
5 80 76 71 75 73 70 94 87 79 29.85 29.79 29.76 10 8 1 8 8 10 0.74 Rain , Thunderstorm
6 79 73 67 70 69 66 100 86 71 29.89 29.86 29.80 10 9 2 9 2 10 0.00  
7 83 75 67 72 69 66 97 80 63 29.92 29.89 29.84 10 9 4 14 6 18 0.00  
8 80 72 64 74 71 61 93 86 79 29.87 29.75 29.60 10 9 3 26 12 33 0.12 Rain
9 76 70 64 63 58 51 93 68 43 29.86 29.81 29.75 10 10 8 20 5 24 0.03 Rain
10 73 66 58 56 48 42 72 55 38 30.10 29.96 29.85 10 10 10 21 12 28 0.00  
11 71 61 51 50 45 41 77 56 35 30.27 30.21 30.11 10 10 10 8 6 9 0.00  
12 76 65 53 59 54 50 93 68 43 30.35 30.32 30.28 10 10 10 12 4 15 0.00  
13 76 67 57 61 58 55 93 74 54 30.37 30.33 30.28 10 10 10 13 5 17 0.00  
14 77 68 59 62 60 56 97 74 50 30.28 30.19 30.08 10 10 10 14 6 20 0.00  
15 73 64 55 62 53 47 87 64 41 30.09 30.06 30.02 10 10 10 21 9 28 0.00  
16 73 62 50 53 50 47 89 65 41 30.12 30.07 30.02 10 10 10 14 5 18 0.00  
17 75 62 49 53 51 45 93 67 40 30.10 30.06 30.03 10 10 10 14 4 17 0.00  
18 75 68 60 70 66 55 87 80 73 30.03 29.84 29.69 10 9 2 29 18 41 0.67 Rain
19 71 62 53 66 53 44 93 67 40 30.16 29.93 29.72 10 10 10 20 9 25 0.00  
20 69 61 52 54 51 45 83 70 57 30.19 30.15 30.11 10 10 10 17 9 23 0.00  
21 72 63 54 56 53 50 93 71 49 30.11 30.07 30.01 10 10 10 14 4 17 0.00  
22 72 62 51 67 59 49 96 81 66 29.99 29.90 29.81 10 10 9 20 8 24 0.02 Rain
23 69 60 50 62 50 41 93 65 36 30.09 29.99 29.84 10 10 8 20 8 26 0.00  
24 68 58 48 48 43 37 86 60 34 30.14 30.10 30.08 10 10 10 14 3 18 0.00  
25 71 58 44 54 48 41 89 68 47 30.19 30.16 30.14 10 10 10 22 10 29 0.00  
26 74 70 65 64 60 55 87 74 61 30.14 30.07 30.02 10 10 9 20 11 30 T  
27 76 69 62 63 62 58 93 75 57 30.17 30.12 30.04 10 10 8 13 5 15 0.01 Rain
28 72 66 59 68 62 57 97 88 78 30.17 30.04 29.92 10 9 3 25 12 35 0.17 Rain , Thunderstorm
29 62 59 55 57 56 54 93 86 78 29.91 29.89 29.86 10 9 3 10 4 15 0.07 Rain
30 68 60 51 56 53 47 93 76 58 29.86 29.81 29.76 10 10 4 18 4 25 0.08 Rain , Thunderstorm
Comma Delimited File