National Storms

Snow and rain totals for ZIP code 13637

Calcium, NY

NOAA's National Snowfall Analysis shows no measurable snow at ZIP code 13637 (Calcium, NY) so far this season (since October 1, 2026, through November 7, 2026). Last season (2025–26) it estimated 118.3 inches in all; the biggest day was 12.2 inches on January 1, 2026. Over the last 30 days, NOAA's MRMS analysis estimates 1.74 inches of rain and melted snow.

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

Pin: the Census center point of ZIP Code Tabulation Area 13637, in Jefferson County. Values are NOAA estimates for the grid cell under the pin. New York snowfall totals.

Last 14 days

24 hours ending (12:00 UTC)Estimated snowEstimated rain
November 7, 20260″0″
November 6, 20260″0″
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″0.17″
October 29, 20260″0″
October 28, 20260″0″
October 27, 20260″0″
October 26, 20260″0″
October 25, 20260″0″
Oct 2025: 0Nov 2025: 4.8Dec 2025: 21Jan 2026: 68.9Feb 2026: 14Mar 2026: 8.4Apr 2026: 1.2May 2026: 0Jun 2026: 0Jul 2026: 0Aug 2026: 0Sep 2026: 0Oct 2026: 0Oct 2025Dec 2025Feb 2026Apr 2026Jun 2026Aug 2026Oct 2026max 68.9
Estimated snowfall by month, inches (ZIP code 13637 (Calcium, 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
2025–26118.3″3012.2″ on Jan 1, 2026

Biggest snow days since October 2025

24 hours endingEstimated snow
January 1, 202612.2″
January 21, 202611.6″
January 26, 20269.7″
January 28, 20268.8″
December 8, 20256.2″
January 20, 20264.8″
January 29, 20264.3″
December 27, 20253.2″
February 12, 20263.0″
January 22, 20262.9″

Rain and melted snow by month

MonthEstimated precipitationEstimated snow
Oct 20263.53″0.0″
Sep 20262.85″0.0″
Aug 20264.23″0.0″
Jul 20264.78″0.0″
Jun 20264.40″0.0″
May 20263.03″0.0″
Apr 20265.88″1.2″
Mar 20264.20″8.4″
Feb 20262.46″14.0″
Jan 20266.07″68.9″
Dec 20254.55″21.0″
Nov 20254.93″4.8″
Oct 20254.82″0.0″

Wettest days since October 2025

24 hours endingEstimated rain
October 31, 20251.94″
June 15, 20261.85″
July 30, 20261.24″
February 21, 20261.06″
September 1, 20261.06″
July 1, 20261.05″
August 3, 20261.04″
April 15, 20261.00″
April 30, 20260.98″
September 3, 20260.93″

Spotter snow reports near 13637

30 measured snowfall reports within 10 miles since October 2025, on 17 days. The largest was 12.9 inches at Watertown, NY (9.8 miles away), reported to NWS BUF for January 29, 2026. Below: the largest report each day, next to NOAA's 24-hour estimate for 13637.

Day (ending 11 a.m. EST)Largest reportWhereTimeReported toNOAA estimate here
Apr 7, 20261.8″2 NW Deferiet, NY, 7.3 mi Apr 7, 8:00 a.m. EDTNWS BUF, Co-op observer1.1″
Mar 17, 20263.5″2 NW Deferiet, NY, 7.3 mi Mar 17, 8:00 a.m. EDTNWS BUF, Co-op observer0.9″
Feb 12, 20264.9″ (3 reports)2 NW Deferiet, NY, 7.3 mi Feb 12, 8:00 a.m. ESTNWS BUF, Co-op observer3.0″
Feb 4, 20264.7″Watertown, NY, 9.8 mi Feb 3, 7:00 p.m. ESTNWS BUF, Trained spotter2.9″
Jan 29, 202612.9″ (3 reports)Watertown, NY, 9.8 mi Jan 29, 7:30 a.m. ESTNWS BUF, Trained spotter4.3″
Jan 28, 20269.7″ (4 reports)Watertown, NY, 9.8 mi Jan 27, 7:28 p.m. ESTNWS BUF, Trained spotter8.8″
Jan 27, 20269.7″ (2 reports)Watertown, NY, 9.8 mi Jan 26, 2:45 p.m. ESTNWS BUF, Trained spotter1.8″
Jan 26, 20269.0″ (2 reports)1 S Calcium, NY, 5.8 mi Jan 26, 6:45 a.m. ESTNWS BUF, Trained spotter9.7″
Jan 23, 20267.0″1 S Calcium, NY, 5.8 mi Jan 22, 7:00 p.m. ESTNWS BUF, Trained spotter2.3″
Jan 22, 20261.5″2 NW Deferiet, NY, 7.3 mi Jan 22, 8:00 a.m. ESTNWS BUF, Co-op observer2.9″
Jan 21, 20269.0″ (4 reports)Philadelphia, NY, 7.3 mi Jan 21, 8:00 a.m. ESTNWS BUF, Public11.6″
Jan 15, 20261.5″Fort Drum, NY, 7.3 mi Jan 15, 8:00 a.m. ESTNWS BUF, Co-op observer1.7″
Jan 6, 20263.4″2 NW Deferiet, NY, 7.3 mi Jan 6, 8:00 a.m. ESTNWS BUF, Co-op observer2.8″
Jan 1, 20265.0″1 ESE Calcium, NY, 5.2 mi Dec 31, 4:25 p.m. ESTNWS BUF, Trained spotter12.2″
Dec 30, 20252.0″2 NW Deferiet, NY, 7.3 mi Dec 30, 8:00 a.m. ESTNWS BUF, Co-op observer1.6″
Dec 11, 20253.7″2 NW Deferiet, NY, 7.3 mi Dec 11, 8:00 a.m. ESTNWS BUF, Co-op observer2.2″
Dec 8, 20256.2″ (2 reports)Watertown, NY, 9.8 mi Dec 7, 3:45 p.m. ESTNWS BUF, Trained spotter6.2″

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.

Look up another ZIP code

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.

Hail check for any US address

Every day since October 2019 that radar estimated hail near the address, free.

Guide: How to check if it hailed at your address · Free hail alerts by email · As you type, the text is sent to Google to suggest addresses.