National Storms

Snow and rain totals for ZIP code 11780

St. James, NY

NOAA's National Snowfall Analysis shows no measurable snow at ZIP code 11780 (St. James, NY) so far this season (since October 1, 2026, through November 8, 2026). Last season (2025–26) it estimated 52.0 inches in all; the biggest day was 19.8 inches on February 23, 2026. Over the last 30 days, NOAA's MRMS analysis estimates 2.83 inches of rain and melted snow.

0.0″snow this season (2026–27)
0days with 1″+ snow this season
52.0″snow in 2025–26
2.83″rain, last 30 days

Pin: the Census center point of ZIP Code Tabulation Area 11780, in Suffolk County. Values are NOAA estimates for the grid cell under the pin. New York snowfall totals.

Snow load on roofs in ZIP 11780 right now

No snow on the ground

NOAA's snow model shows no snow on the ground here as of 1 a.m. EST on November 8, 2026.

This is an estimate of the snow, not an inspection of any roof. Whether a roof can carry it depends on its design snow load, its age and condition, and how the snow has drifted. Your local building department can tell you the design snow load for your address, and a licensed structural engineer or roofing contractor can look at the roof itself.

Snow load for ZIP 11780 · snow load calculator

Last 14 days

24 hours ending (12:00 UTC)Estimated snowEstimated rain
November 8, 20260″0″
November 7, 20260″0.94″
November 6, 20260″0.19″
November 5, 20260″0″
November 4, 20260″0″
November 3, 20260″0″
November 2, 20260″0″
November 1, 20260″0″
October 31, 20260″0″
October 30, 20260″0″
October 29, 20260″0″
October 28, 20260″0″
October 27, 20260″0″
October 26, 20260″0″
Oct 2025: 0Nov 2025: 0Dec 2025: 12.5Jan 2026: 14.5Feb 2026: 24.7Mar 2026: 0.3Apr 2026: 0May 2026: 0Jun 2026: 0Jul 2026: 0Aug 2026: 0Sep 2026: 0Oct 2026: 0Nov 2026: 0Oct 2025Dec 2025Feb 2026Apr 2026Jun 2026Aug 2026Oct 2026max 24.7
Estimated snowfall by month, inches (ZIP code 11780 (St. James, NY))

Source: National Storms (nationalstorms.com), CC BY 4.0, data from the NOAA NOHRSC National Snowfall Analysis.

Snow by season

Season (Oct 1 – Sep 30)Total snowDays with 1″+Biggest day
2025–2652.0″919.8″ on Feb 23, 2026

Biggest snow days since October 2025

24 hours endingEstimated snow
February 23, 202619.8″
January 26, 202610.9″
December 27, 20255.3″
December 14, 20253.9″
December 15, 20253.1″
January 19, 20261.4″
February 26, 20261.4″
February 25, 20261.2″
January 25, 20261.1″

Rain and melted snow by month

MonthEstimated precipitationEstimated snow
Nov 20261.13″0.0″
Oct 20261.98″0.0″
Sep 20269.00″0.0″
Aug 20266.48″0.0″
Jul 20267.14″0.0″
Jun 20261.65″0.0″
May 20264.35″0.0″
Apr 20261.94″0.0″
Mar 20264.97″0.3″
Feb 20263.10″24.7″
Jan 20263.26″14.5″
Dec 20254.39″12.5″
Nov 20251.65″0.0″
Oct 20255.28″0.0″

Wettest days since October 2025

24 hours endingEstimated rain
August 21, 20263.08″
October 31, 20252.34″
September 28, 20262.10″
July 29, 20262.01″
September 27, 20261.92″
October 13, 20251.69″
January 26, 20261.68″
July 7, 20261.61″
March 6, 20261.56″
February 23, 20261.53″

Spotter snow reports near 11780

184 measured snowfall reports within 10 miles since October 2025, on 14 days. The largest was 31.0 inches at Central Islip, NY (9.2 miles away), reported to NWS OKX for February 24, 2026. Below: the largest report each day, next to NOAA's 24-hour estimate for 11780.

Day (ending 11 a.m. EST)Largest reportWhereTimeReported toNOAA estimate here
Feb 26, 20262.8″ (2 reports)Centereach, NY, 5.6 mi Feb 25, 11:15 a.m. ESTNWS OKX, NWS employee1.4″
Feb 25, 20263.1″ (6 reports)1 N Smithtown, NY, 2.9 mi Feb 25, 10:30 a.m. ESTNWS OKX, Trained spotter1.2″
Feb 24, 202631.0″ (10 reports)Central Islip, NY, 9.2 mi Feb 23, 1:40 p.m. ESTNWS OKX, Trained spotter0.6″
Feb 23, 202627.0″ (35 reports)Central Islip, NY, 9.2 mi Feb 23, 8:11 a.m. ESTNWS OKX, Trained spotter19.8″
Feb 16, 20262.0″1 SSW Nesconset, NY, 5.6 mi Feb 16, 9:30 a.m. ESTNWS OKX, CoCoRaHS0.9″
Jan 26, 202613.5″ (51 reports)1 NW Setauket-East Seta, NY, 3.8 mi Jan 25, 5:30 p.m. ESTNWS OKX, Public10.9″
Jan 25, 20264.0″ (9 reports)1 SW East Northport, NY, 8.7 mi Jan 25, 10:54 a.m. ESTNWS OKX, Trained spotter1.1″
Jan 19, 20263.0″ (5 reports)1 SE Commack, NY, 7.5 mi Jan 19, 1:50 a.m. ESTNWS OKX, Public1.4″
Jan 4, 20260.5″Mount Sinai, NY, 8.2 mi Jan 4, 9:30 a.m. ESTNWS OKX, Public0.3″
Dec 28, 20256.6″ (2 reports)Islip Airport, NY, 9.2 mi Dec 27, 1:00 p.m. ESTNWS OKX, Official NWS obs0.0″
Dec 27, 20257.0″ (38 reports)Mount Sinai, NY, 8.1 mi Dec 27, 8:00 a.m. ESTNWS OKX, Co-op observer5.3″
Dec 24, 20250.3″2 S Commack, NY, 8.4 mi Dec 23, 3:00 p.m. ESTNWS OKX, Public0.2″
Dec 15, 20258.5″ (14 reports)2 S Commack, NY, 8.4 mi Dec 14, 12:53 p.m. ESTNWS OKX, Public3.1″
Dec 14, 20256.0″ (9 reports)Mount Sinai, NY, 8.2 mi Dec 14, 10:30 a.m. ESTNWS OKX, Public3.9″

Spotter reports: National Weather Service Local Storm Reports (LSRs): measurements sent to NWS offices by trained storm spotters, CoCoRaHS and co-op observers, NWS staff, the public and others, archived by the Iowa Environmental Mesonet (Iowa State University). Reports are what each observer measured at one spot, often a storm total so far, and the NWS doesn't quality-check every one. Exact repeats count once.

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Sources

Snow: NOAA National Operational Hydrologic Remote Sensing Center (NOHRSC), National Snowfall Analysis (version 2.1), 24-hour totals on a 0.04° grid (about 4 km). NOHRSC builds it from NWS, CoCoRaHS and other snowfall reports, radar and gauge precipitation (Stage IV) and model snow-to-liquid ratios. Rain: NOAA MRMS multi-sensor 24-hour precipitation (radar adjusted to rain gauges, about 1 km), from the Iowa Environmental Mesonet archive; it is total liquid, so it includes melted snow and sleet. Places: US Census Bureau ZIP Code Tabulation Areas (2024 Gazetteer internal points) and city centers. Each value is the estimate for the grid cell that contains the ZIP code's or city's center point, not a measurement at your house. NOAA reruns recent analyses as late reports arrive, so the last few days can change slightly. These are our own summaries of public NOAA data; NOAA has not reviewed them.

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