Mastic, New York Climate
United States
Pop. 15,481 Elev. 10 m / 33 ft
TZ: America/New_York (UTC-4) ·
Mastic has mild summers with average highs of 79°F (26°C) in July, and cold winters averaging 29°F (-2°C) in January. Wind chill can push winter lows to 19°F (-7°C). Rain falls on about 56 days per year (36.2 in / 919 mm total), with snow on 4 days and 21 in (540 mm) of annual accumulation. The city averages 128 sunny days per year and around 31 thunderstorm days. Ocean water temperatures reach 76°F (24°C) in summer.
| Temperature | 79°F (26°C) high | 29°F (-1°C) low |
| Feels like | 19°F (-7°C) low | |
| Rain | 56 days | 36.2 in (919 mm) /yr |
| Snow | 4 days | 21.3 in (540 mm) /yr |
| Sky | 128 sunny | 31 stormy |
| Wind | 5.4 mph (2.4 m/s) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: Jun, Jul, Aug, Sep
Sky & Air by Month
Cloud cover (%)
44
Jan 63
Feb 55
Mar 66
Apr 68
May 64
Jun 55
Jul 40
Aug 52
Sep 42
Oct 49
Nov 58
Dec Humidity (%)
63
Jan 66
Feb 68
Mar 68
Apr 78
May 80
Jun 81
Jul 73
Aug 77
Sep 69
Oct 65
Nov 66
Dec Weather Days by Month
Water Temperatures
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 14 mi Long Island MacArthur Airport (ISP)
Ski resort 49 mi Powder Ridge Ski Area
National park 111 mi Connecticut River Greenway State Park
Mountain peak
(4,971 ft) 235 mi Schofield Cobble
Hospital 7 mi NYU Langone Hospital-Suffolk
Hiking trail 2 mi Blue Trail Addition
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 37°F 3°C | 29°F -1°C | 1.1 in 27 mm | 4.0 in100 mm | 14 |
| February | 40°F 4°C | 31°F -1°C | 2.5 in 65 mm | 8.4 in214 mm | 6 |
| March | 48°F 9°C | 39°F 4°C | 4.3 in 108 mm | — | 10 |
| April | 54°F 12°C | 47°F 8°C | 3.4 in 85 mm | — | 5 |
| May | 62°F 17°C | 55°F 13°C | 5.8 in 148 mm | — | 8 |
| June | 71°F 22°C | 65°F 18°C | 2.2 in 56 mm | — | 5 |
| July | 79°F 26°C | 73°F 23°C | 2.9 in 73 mm | — | 11 |
| August | 74°F 24°C | 68°F 20°C | 1.9 in 50 mm | — | 19 |
| September | 71°F 22°C | 66°F 19°C | 2.6 in 66 mm | — | 12 |
| October | 63°F 17°C | 56°F 14°C | 5.1 in 129 mm | — | 17 |
| November | 53°F 12°C | 46°F 8°C | 2.2 in 56 mm | 0.0 in0 mm | 14 |
| December | 42°F 6°C | 33°F 1°C | 2.3 in 58 mm | 8.9 in226 mm | 7 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 14 | 1 |
| February | 6 | 1 |
| March | 10 | 1 |
| April | 5 | 2 |
| May | 8 | 5 |
| June | 5 | 2 |
| July | 11 | 6 |
| August | 19 | 3 |
| September | 12 | 4 |
| October | 17 | 4 |
| November | 14 | 2 |
| December | 7 | 0 |
Water Temperatures Data
↑ See chart| Month | Ocean Avg High | Lake Avg High |
|---|---|---|
| January | 47°F 8°C | 38°F 4°C |
| February | 41°F 5°C | 36°F 2°C |
| March | 43°F 6°C | 39°F 4°C |
| April | 50°F 10°C | 46°F 8°C |
| May | 57°F 14°C | 56°F 13°C |
| June | 69°F 21°C | 66°F 19°C |
| July | 76°F 24°C | 76°F 25°C |
| August | 75°F 24°C | 73°F 23°C |
| September | 71°F 22°C | 69°F 21°C |
| October | 69°F 21°C | 63°F 17°C |
| November | 61°F 16°C | 53°F 12°C |
| December | 52°F 11°C | 43°F 6°C |