From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The shaded overlays indicate night and civil twilight. We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. In this report, we use a base of 50°F and a cap of 86°F. Average Weather in December at Long Island Mac Arthur Airport New York, United States. Daylight saving time is observed at Long Island Mac Arthur Airport during 2020, but it neither starts nor ends during September, so the entire month is in daylight saving time. Montauk in September, and even October, is terrific. Early signs point to potential blockbuster Northeast snowstorm, Officer was first on scene of one of the worst traffic accidents in US history, Planets to align on winter solstice, shine together like 1 bright star, Hilarious dog joins his human to make snow angels together, Podcast: Multiple storm threats from the Plains to the Northeast. This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid. The area within 2 miles of Long Island Mac Arthur Airport is covered by artificial surfaces (99%), within 10 miles by artificial surfaces (66%) and water (24%), and within 50 miles by water (62%) and artificial surfaces (20%). The stations on which we may fall back include but are not limited to Brookhaven Airport, Republic Airport, Igor I Sikorsky Memorial Airport, The Francis S Gabreski Airport, Tweed-New Haven Airport, Westchester County Airport, John F. Kennedy International Airport, and Waterbury-Oxford Airport. The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on September. ConstanÅ£a, Romania (4,830 miles away); Ullubiyaul, Russia (5,602 miles); and Sendai, Japan (6,576 miles) are the far-away foreign places with temperatures most similar to Long Island Mac Arthur Airport (view comparison). Long Island - Recent Annual Temperatures, Rain & Snow The numbers here describe what the weather in Long Island, New York was like for every year since 2010. We have updated our Privacy Policy and Cookie Policy. Chance of rain 100%. This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. Both are on the eastern flank of Long Island. At Long Island Mac Arthur Airport, the chance of a wet day over the course of September is essentially constant, remaining around 26% throughout. We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader. The black line is the percentage chance that a given day is within the growing season. Long Island Mac Arthur Airport has a weather station that reported reliably enough during the analysis period that we have included it in our network. Get hour-by-hour updates, 7 day forecast & more. The topography within 2 miles of Long Island Mac Arthur Airport is essentially flat, with a maximum elevation change of 89 feet and an average elevation above sea level of 79 feet. For reference, on January 3, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 52%, while on September 22, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 64%. The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands. The average growing degree days accumulated over the course of September, with 25th to 75th and 10th to 90th percentile bands. The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than. 5 to 8 inches of snow expected. This section reports on the wide-area average surface temperature of that water. °F. Hi/Low, RealFeel®, precip, radar, & everything you need to be ready for the day, commute, and weekend! Today’s and tonight’s New York City, NY weather forecast, weather conditions and Doppler radar from The Weather Channel and Weather.com Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere). For a given day of the year and hour of the day, the fallback station is selected to minimize the prediction error over the years for which there are measurements for both stations. At Long Island Mac Arthur Airport, the average percentage of the sky covered by clouds experiences mild seasonal variation over the course of the year.. NOAA National Weather Service New York, NY. For reference, on January 13, the windiest day of the year, the daily average wind speed is 14.2 miles per hour, while on July 25, the calmest day of the year, the daily average wind speed is 8.4 miles per hour. Today’s and tonight’s Bay Shore, NY weather forecast, weather conditions and Doppler radar from The Weather Channel and Weather.com The shortest day of the month is September 30, with 11 hours, 47 minutes of daylight and the longest day is September 1, with 13 hours, 4 minutes of daylight. High 46F. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases. For reference, the year's highest daily chance of a wet day is 32% on May 29, and its lowest chance is 23% on January 28. Long Island is divided into two counties: Nassau County to the west and Suffolk County on the eastern flank of the island. © 2020 AccuWeather, Inc. "AccuWeather" and sun design are registered trademarks of AccuWeather, Inc. All Rights Reserved. The average accumulated growing degree days at Long Island Mac Arthur Airport are rapidly increasing during September, increasing by 477°F, from 2,448°F to 2,925°F, over the course of the month. Within 10 miles is essentially flat (315 feet). Smaller crowds, warmer water, great weather. But it just happened literally so fast,” Nicholson said. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night. Get the monthly weather forecast for Long Island, KS, including daily high/low, historical averages, to help you plan ahead. The wind direction at Long Island Mac Arthur Airport during September is predominantly out of the south from September 1 to September 29 and the west from September 29 to September 30. The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. Weather data is prone to errors, outages, and other defects. Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory. The average surface water temperature at Long Island Mac Arthur Airport is decreasing during September, falling by 4°F, from 71°F to 66°F, over the course of the month. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. Chance of snow 60%. MERRA-2 Modern-Era Retrospective Analysis. Rainfall around a half an inch. A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In the case of missing or erroneous measurements from this station, we fall back on records from nearby stations, adjusted according to typical seasonal and diurnal intra-station differences. Get the forecast for today, tonight & tomorrow's weather for Sayville, NY. support@__remove_this_part__weatherspark.com. A tornado warning from the National Weather Service for Suffolk County on Long Island — a region that includes Fire Island — was canceled as of 4:56 p.m. Bennett posted the video at 4:20 p.m. Dec 1 Average and Extremes: Average temperature: 40.1°F: Average humidity: 87%: Average dewpoint: 36.5°F: Average barometer: 30.4 in. Share: Get the Long Range Weather for Your Location ... Watch for a tropical storm threat in early to mid-September. Last 2 weeks of weather To show variation within the month and not just the monthly total, we show the rainfall accumulated over a sliding 31-day period centered around each day. It's not in town but ideally situated right on the ocean. Get the forecast for today, tonight & tomorrow's weather for Long Island City, NY. The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds. Long Island Weather has the most accurate local weather forecasts and weather information for Long Island. The average hourly wind speed at Long Island Mac Arthur Airport is increasing during September, increasing from 9.2 miles per hour to 10.8 miles per hour over the course of the month. Daily low temperatures decrease by 9°F, from 64°F to 54°F, rarely falling below 44°F or exceeding 72°F. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray. Average Weather in September at Long Island Mac Arthur Airport New York, United States. Free Long Range Weather Forecast for Long Island, New York. Forecasts and weather analysis for Long Island Nassau & Suffolk Counties of NY. Check out the current weather conditions in real time before stepping out of your home! The clearest day of the month is September 22, with clear, mostly clear, or partly cloudy conditions 64% of the time. Women's slippers to keep your feet snug and warm as winter moves in, Perfect gifts for guys who love the outdoors. September 4, 2019 | 1:10pm | Updated ... Dombek said the most dangerous impact of Dorian will be the rip tides it will create offshore and on New York beaches, with Long Island … The solar day over the course of September. Schenectady Airport is 46 miles from Long Island, so the actual climate in Long Island can vary a bit. Soliciting comments on the use of NWS frost and freeze products and services through December 17, 2020 The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages. From the start to the end of the month, the length of the day decreases by 1 hour, 17 minutes, implying an average daily decrease of 2 minutes, 40 seconds, and weekly decrease of 18 minutes, 38 seconds. Within 50 miles contains only modest variations in elevation (1,053 feet). All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . The average sliding 31-day rainfall during September at Long Island Mac Arthur Airport is gradually increasing, starting the month at 3.2 inches, when it rarely exceeds 5.8 inches or falls below 1.1 inches, and ending the month at 3.6 inches, when it rarely exceeds 6.0 inches or falls below 1.3 inches. All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , by Jean Meeus. HEADS UP: Blockbuster snowstorm could take shape in Northeast next week. Get the monthly weather forecast for Long Island, ME, including daily high/low, historical averages, to help you plan ahead. The Old Farmer's Almanac Long Range Weather Forecast for the Atlantic Corridor Region. The average daily incident shortwave solar energy at Long Island Mac Arthur Airport is decreasing during September, falling by 1.2 kWh, from 5.6 kWh to 4.3 kWh, over the course of the month. — Pat Cavlin (@pcavlin) September 3, 2019 “You think it might happen in the midwest but not on Long Island. We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. The growing season at Long Island Mac Arthur Airport typically lasts for 6.9 months (209 days), from around April 7 to around November 2, rarely starting before March 21 or after April 23, and rarely ending before October 15 or after November 19. The month of September at Long Island Mac Arthur Airport is reliably fully within the growing season. Snow showers early, with a steadier snow developing late in the day. Get the monthly weather forecast for New York, NY, including daily high/low, historical averages, to help you plan ahead. The horizontal axis is the day, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day. The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day). The National Weather Service Forecast Office in New York, NY provides official forecasts and warnings for New York City, Long Island, the Lower Hudson Valley of New York, Northeastern New Jersey, Southern Connecticut and the surrounding Coastal Waters. The percentage of time spent in various temperature bands. The lowest chance of overcast or mostly cloudy conditions is 36% on September 22. NE 17 mph. The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average liquid-equivalent snowfall. Long Island Mac Arthur Airport is located near a large body of water (e.g., ocean, sea, or large lake). Winds NNW at 20 to 30 mph. Shortwave radiation includes visible light and ultraviolet radiation. The figure below presents a compact representation of key lunar data for September 2020. The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. Daily high temperatures decrease by 9°F, from 78°F to 69°F, rarely falling below 61°F or exceeding 85°F. Over the course of September at Long Island Mac Arthur Airport, the length of the day is rapidly decreasing. Marine Weather and Tides Orient, NY Version 3.4 NOTICE ... 9/4/2019 Fixed the weather maps due to NOAA moving them. For reference, on July 20, the hottest day of the year, temperatures at Long Island Mac Arthur Airport typically range from 68°F to 82°F, while on January 30, the coldest day of the year, they range from 25°F to 38°F. ... Long Island Sound, New York Current EDIT Help One Week of Data. Lower dew points feel drier and higher dew points feel more humid. Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations. Winds NE at 15 to 25 mph. The chance that a given day will be muggy at Long Island Mac Arthur Airport is very rapidly decreasing during September, falling from 33% to 11% over the course of the month. The number of hours during which the Sun is visible (black line). Sept. 4, 2019 [Want to get New York Today by email? The Long Island fall run continues with stripers to 41-pounds, black sea bass to 6 … The latest sunset is 7:23 PM on September 1 and the earliest sunset is 49 minutes earlier at 6:35 PM on September 30. High 33F. This report illustrates the typical weather at Long Island Mac Arthur Airport, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016. Long Island Extended Forecast with high and low temperatures. 33°. When available, historical temperature and dew point measurements are taken directly from this weather station. The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. The month of September at Long Island Mac Arthur Airport experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 37% throughout the month. Hi/Low, RealFeel®, precip, radar, & everything you need to be ready for the day, commute, and weekend! Showing: All Year January February March April May June July August September October November December Time zones for airports and weather stations are provided by AskGeo.com . ... 2020-2021 Long Range Weather Forecast for Staten Island, NY . The average hourly temperature, color coded into bands. Wind Advisory in effect until Monday, 4:00 AM EST. ... a meteorologist at the National Weather Service on Long Island: big waves, gusty wind and a bit of rain. Be prepared with the most accurate 10-day forecast for Riverhead, NY with highs, lows, chance of precipitation from The Weather Channel and Weather.com These records are obtained from NOAA's Integrated Surface Hourly data set, falling back on ICAO METAR records as required. The earliest sunrise of the month at Long Island Mac Arthur Airport is 6:19 AM on September 1 and the latest sunrise is 29 minutes later at 6:48 AM on September 30. The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands. As for a place to stay, I would recommend Sea Crest. For reference, on August 1, the muggiest day of the year, there are muggy conditions 57% of the time, while on January 1, the least muggy day of the year, there are muggy conditions 0% of the time. Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC. The label associated with each bar indicates the date and time that the phase is obtained, and the companion time labels indicate the rise and set times of the Moon for the nearest time interval in which the moon is above the horizon. A series of tables gives data by year for temperature, precipitation and snowfall. Get AccuWeather alerts as they happen with our browser notifications. 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