History for Islip, NY

Monday, February 18, 2013 — View Current Conditions

Monday, February 18, 2013

	Actual	Average	Record
Temperature
Mean Temperature	25 °F	33 °F
Max Temperature	32 °F	41 °F	60 °F (2011)
Min Temperature	17 °F	26 °F	15 °F (2006)
Degree Days
Heating Degree Days	40	32
Month to date heating degree days	633	595
Since 1 July heating degree days	3330	3587
Cooling Degree Days	0	0
Month to date cooling degree days	0	0
Year to date cooling degree days	0	0
Moisture
Dew Point	6 °F
Average Humidity	37
Maximum Humidity	55
Minimum Humidity	19
Precipitation
Precipitation	0.00 in	0.12 in	0.93 in (1999)
Month to date precipitation	3.87	1.98
Year to date precipitation	6.09	5.62
Snow
Snow	0.00 in	0.30 in	0.10 in (2004)
Month to date snowfall	31.2	4.5
Since 1 July snowfall	39.3	17.1
Snow Depth	7.00 in
Sea Level Pressure
Sea Level Pressure	30.13 in
Wind
Wind Speed	15 mph (WNW)
Max Wind Speed	31 mph
Max Gust Speed	40 mph
Visibility	10 miles
Events

T = Trace of Precipitation, MM = Missing Value

Source: NWS Daily Summary

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Local Photos

	Parting Ways Until next month at least
	THE MOON LAST NIGHT
	Food Shopping After 24 hours of high winds and icy cold.
	Warming Up in the Sun After yesterday's bitter cold snap.

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Astronomy

May. 24, 2013	Rise	Set
Actual Time	6:42 AM EST	5:31 PM EST
Civil Twilight	6:14 AM EST	5:58 PM EST
Nautical Twilight	5:42 AM EST	6:30 PM EST
Astronomical Twilight	5:10 AM EST	7:02 PM EST
Moon	11:13 AM EST (2/18)	1:20 AM EST (2/18)
Length Of Visible Light	11h 44m
Length of Day	10h 48m

First Quarter, 58% of the Moon is Illuminated
Feb 18 First Quarter	Feb 25 Full	Mar 4 Last Quarter	Mar 11 New	Mar 19 First Quarter

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Hourly Observations

Time (EST)	Temp.	Windchill	Dew Point	Humidity	Pressure	Visibility	Wind Dir	Wind Speed	Gust Speed	Precip	Conditions
12:56 AM	17.1 °F	0.1 °F	1.9 °F	52%	29.92 in	10.0 mi	WNW	20.7 mph	38.0 mph	N/A	Clear
1:56 AM	18.0 °F	0.6 °F	1.9 °F	50%	29.94 in	10.0 mi	NW	23.0 mph	36.8 mph	N/A	Clear
2:56 AM	18.0 °F	0.9 °F	3.0 °F	52%	29.96 in	10.0 mi	WNW	21.9 mph	32.2 mph	N/A	Clear
3:56 AM	18.0 °F	0.2 °F	3.0 °F	52%	29.99 in	10.0 mi	WNW	24.2 mph	34.5 mph	N/A	Clear
4:56 AM	17.1 °F	2.0 °F	3.0 °F	54%	30.02 in	10.0 mi	WNW	16.1 mph	29.9 mph	N/A	Clear
6:56 AM	17.1 °F	1.0 °F	3.0 °F	54%	30.09 in	10.0 mi	NW	18.4 mph	28.8 mph	N/A	Partly Cloudy
7:56 AM	19.0 °F	2.0 °F	3.9 °F	52%	30.12 in	10.0 mi	NW	23.0 mph	28.8 mph	N/A	Clear
8:56 AM	21.0 °F	6.6 °F	5.0 °F	50%	30.14 in	10.0 mi	NW	17.3 mph	29.9 mph	N/A	Clear
9:56 AM	21.9 °F	7.8 °F	6.1 °F	51%	30.17 in	10.0 mi	WNW	17.3 mph	27.6 mph	N/A	Clear
10:56 AM	24.1 °F	10.1 °F	6.1 °F	46%	30.19 in	10.0 mi	WNW	18.4 mph	24.2 mph	N/A	Clear
11:56 AM	27.0 °F	13.5 °F	8.1 °F	45%	30.18 in	10.0 mi	WNW	19.6 mph	25.3 mph	N/A	Clear
12:56 PM	28.0 °F	15.3 °F	7.0 °F	41%	30.17 in	10.0 mi	WNW	18.4 mph	24.2 mph	N/A	Clear
1:56 PM	48.2 °F	-	8.6 °F	20%	30.38 in	10.0 mi	Calm	Calm	-	N/A	Clear
2:56 PM	30.9 °F	19.8 °F	8.1 °F	38%	30.15 in	10.0 mi	WNW	16.1 mph	20.7 mph	N/A	Clear
3:56 PM	32.0 °F	21.2 °F	8.1 °F	37%	30.15 in	10.0 mi	West	16.1 mph	-	N/A	Clear
4:56 PM	32.0 °F	22.1 °F	7.0 °F	35%	30.17 in	10.0 mi	West	13.8 mph	-	N/A	Partly Cloudy
6:56 PM	28.9 °F	23.9 °F	7.0 °F	40%	30.19 in	10.0 mi	WSW	4.6 mph	-	N/A	Partly Cloudy
7:56 PM	28.0 °F	21.7 °F	7.0 °F	41%	30.20 in	10.0 mi	WSW	5.8 mph	-	N/A	Partly Cloudy
8:56 PM	27.0 °F	19.5 °F	8.1 °F	45%	30.20 in	10.0 mi	SW	6.9 mph	-	N/A	Partly Cloudy
9:56 PM	28.0 °F	22.8 °F	10.0 °F	47%	30.20 in	10.0 mi	WSW	4.6 mph	-	N/A	Scattered Clouds
10:56 PM	27.0 °F	19.5 °F	12.0 °F	53%	30.22 in	10.0 mi	WSW	6.9 mph	-	N/A	Mostly Cloudy
11:56 PM	28.9 °F	20.4 °F	14.0 °F	54%	30.22 in	10.0 mi	WSW	9.2 mph	-	N/A	Mostly Cloudy
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