National Storms

Snow and rain totals for ZIP code 80421

Park County, CO

NOAA's National Snowfall Analysis estimates 3.3 inches of snow at ZIP code 80421 (Park County, CO) this season (since October 1, 2026), through November 7, 2026. The most in one day was 1.8 inches, in the 24 hours ending November 5, 2026. Last season (2025–26) it estimated 75.7 inches in all; the biggest day was 9.5 inches on May 6, 2026. Over the last 30 days, NOAA's MRMS analysis estimates 1.73 inches of rain and melted snow.

3.3″snow this season (2026–27)
1days with 1″+ snow this season
75.7″snow in 2025–26
1.73″rain, last 30 days

Pin: the Census center point of ZIP Code Tabulation Area 80421, in Park County. Values are NOAA estimates for the grid cell under the pin. Colorado snowfall totals.

Last 14 days

24 hours ending (12:00 UTC)Estimated snowEstimated rain
November 7, 20260″0″
November 6, 20260″0″
November 5, 20261.8″0.15″
November 4, 20260″0″
November 3, 20260.1″0.12″
November 2, 20260″0.19″
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″0.09″
October 25, 20260.7″0.07″
Oct 2025: 0.4Nov 2025: 2.5Dec 2025: 13.7Jan 2026: 7Feb 2026: 7.5Mar 2026: 14.3Apr 2026: 7.5May 2026: 22.8Jun 2026: 0Jul 2026: 0Aug 2026: 0Sep 2026: 0Oct 2026: 1.4Nov 2026: 1.9Oct 2025Dec 2025Feb 2026Apr 2026Jun 2026Aug 2026Oct 2026max 22.8
Estimated snowfall by month, inches (ZIP code 80421 (Park County, CO))

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
2026–27 (so far)3.3″11.8″ on Nov 5, 2026
2025–2675.7″219.5″ on May 6, 2026

Biggest snow days since October 2025

24 hours endingEstimated snow
May 6, 20269.5″
March 7, 20268.6″
December 3, 20255.7″
May 1, 20264.9″
January 9, 20263.8″
February 27, 20263.4″
December 4, 20252.9″
April 18, 20262.8″
May 20, 20262.8″
April 15, 20262.5″

Rain and melted snow by month

MonthEstimated precipitationEstimated snow
Nov 20260.46″1.9″
Oct 20261.73″1.4″
Sep 20261.66″0.0″
Aug 20263.73″0.0″
Jul 20263.27″0.0″
Jun 20260.75″0.0″
May 20263.55″22.8″
Apr 20261.02″7.5″
Mar 20260.90″14.3″
Feb 20260.62″7.5″
Jan 20260.26″7.0″
Dec 20250.73″13.7″
Nov 20250.16″2.5″
Oct 20250.61″0.4″

Wettest days since October 2025

24 hours endingEstimated rain
July 18, 20260.70″
October 14, 20260.70″
August 13, 20260.62″
July 28, 20260.61″
May 6, 20260.52″
August 25, 20260.52″
May 28, 20260.50″
May 29, 20260.50″
July 25, 20260.50″

Spotter snow reports near 80421

29 measured snowfall reports within 10 miles since October 2025, on 14 days. The largest was 12.3 inches at 2 NNE Shaffers Crossing, CO (8.3 miles away), reported to NWS BOU for March 7, 2026. Below: the largest report each day, next to NOAA's 24-hour estimate for 80421.

Day (ending 11 a.m. EST)Largest reportWhereTimeReported toNOAA estimate here
May 7, 20269.5″ (2 reports)1 NNW Grant, CO, 9.5 mi May 7, 7:45 a.m. MDTNWS BOU, Co-op observer1.8″
May 6, 20268.5″ (2 reports)1 NNW Grant, CO, 9.5 mi May 6, 7:30 a.m. MDTNWS BOU, Co-op observer9.5″
Apr 18, 20264.9″ (2 reports)3 NNE Bailey, CO, 2.8 mi Apr 17, 5:50 p.m. MDTNWS BOU, Trained spotter2.8″
Mar 16, 20264.5″ (2 reports)2 NNE Shaffers Crossing, CO, 8.3 mi Mar 16, 7:00 a.m. MDTNWS BOU, CoCoRaHS1.0″
Mar 15, 20263.5″2 NNE Shaffers Crossing, CO, 8.3 mi Mar 15, 7:00 a.m. MDTNWS BOU, CoCoRaHS2.2″
Mar 7, 202612.3″ (4 reports)2 NNE Shaffers Crossing, CO, 8.3 mi Mar 7, 7:00 a.m. MSTNWS BOU, CoCoRaHS8.6″
Jan 26, 20261.0″ (2 reports)2 NNE Shaffers Crossing, CO, 8.3 mi Jan 26, 7:00 a.m. MSTNWS BOU, CoCoRaHS0.5″
Jan 19, 20260.3″ (2 reports)1 NNW Grant, CO, 9.5 mi Jan 19, 7:30 a.m. MSTNWS BOU, Co-op observer0.5″
Jan 9, 20266.0″ (2 reports)3 NNE Bailey, CO, 2.8 mi Jan 9, 8:49 a.m. MSTNWS BOU, Trained spotter3.8″
Dec 6, 20252.0″1 NNW Grant, CO, 9.5 mi Dec 6, 7:30 a.m. MSTNWS BOU, Co-op observer0.5″
Dec 4, 20259.1″ (3 reports)2 NNE Shaffers Crossing, CO, 8.3 mi Dec 4, 7:00 a.m. MSTNWS BOU, CoCoRaHS2.9″
Dec 3, 20257.2″ (2 reports)3 NNE Bailey, CO, 2.8 mi Dec 3, 7:51 a.m. MSTNWS BOU, Trained spotter5.7″
Dec 1, 20250.4″ (2 reports)2 NNE Shaffers Crossing, CO, 8.3 mi Dec 1, 7:00 a.m. MSTNWS BOU, CoCoRaHS0.7″
Nov 29, 20252.5″ (2 reports)1 NNW Grant, CO, 9.5 mi Nov 29, 7:30 a.m. MSTNWS BOU, Co-op observer0.7″

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.