Long Island Climate

LONG ISLAND CLIMATE

ISLIP Norms
Most of this data uses years 1961-90.
.. Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Daily
Mean
Temp 28.6 29.8 38.4 48.3 58.3 67.1 73.2 73.0 66.5 54.6 44.0 34.3 51.3
Daily
Max
Temp 35.9 37.8 45.9 57.1 67.2 75.4 80.8 80.8 72.9 63.4 52.1 41.9 59.3
Daily
Min
Temp 21.3 21.7 30.8 39.5 49.4 58.7 65.7 65.1 60.0 45.7 35.8 26.5 43.4
Record
High 67 67 82 86 98 96 101 94 92 86 78 77 .
Record
Low -7 1 8 24 34 46 50 45 38 28 11 7 .
.. Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean
Days
90 or + 0 0 0 0 1 2 3 1 *
less
than 1 0 0 0 .
Mean
Days
32
or - 25 21 17 3 0 0 0 0 0 1 10 21 .
Degree
Days 1128 986 825 501 221 24 0 0 51 329 630 952 5647
Rainfall 3.69 3.48 4.10 4.23 3.94 3.82 3.46 4.04 3.48 3.55 4.23 4.05 46.07
Snowfall 6.7 5.9 4.4 1.1 T 0.0 0.0 0.0 0.0 0.0 0.9 3.7 22.7
Ave
Wind
Speed 9.6 10.1 10.3 9.8 8.8 8.3 7.5 7.3 7.7 8.2 9.3 9.2 8.8

My location:
Islip, New York, US
County: Suffolk County
Location: 40:73N 73:21W
Population (2000): 20575
Elevation: 16 feet
I'm a member of SkyWarn
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Long Island Weather

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..	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual
Daily Mean Temp	28.6	29.8	38.4	48.3	58.3	67.1	73.2	73.0	66.5	54.6	44.0	34.3	51.3
Daily Max Temp	35.9	37.8	45.9	57.1	67.2	75.4	80.8	80.8	72.9	63.4	52.1	41.9	59.3
Daily Min Temp	21.3	21.7	30.8	39.5	49.4	58.7	65.7	65.1	60.0	45.7	35.8	26.5	43.4

Record High	67	67	82	86	98	96	101	94	92	86	78	77	.
Record Low	-7	1	8	24	34	46	50	45	38	28	11	7	.
..	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual
Mean Days 90 or +	0	0	0	0	1	2	3	1	* less than 1	0	0	0	.
Mean Days 32 or -	25	21	17	3	0	0	0	0	0	1	10	21	.
Degree Days	1128	986	825	501	221	24	0	0	51	329	630	952	5647
Rainfall	3.69	3.48	4.10	4.23	3.94	3.82	3.46	4.04	3.48	3.55	4.23	4.05	46.07
Snowfall	6.7	5.9	4.4	1.1	T	0.0	0.0	0.0	0.0	0.0	0.9	3.7	22.7
Ave Wind Speed	9.6	10.1	10.3	9.8	8.8	8.3	7.5	7.3	7.7	8.2	9.3	9.2	8.8