Niwot SNOTEL

9,940 ftBoulder County, ColoradoNRCS site 663Updated Fri Oct 16, 4:00 AM MDT

SWE0.2″no median
Depth0″0″ 48 h
Temp19°19°–34° 48 h
Thu 15Past 48 hSnow water equivalent0.2″ now00.50.2″Snow depth0″ now-0.500.50″Air temperature19°F now20°30°32°19°FNow · Fri 4 AM
ThuPast 48 hSnow water equivalent0.2″ now00.50.2″Snow depth0″ now-0.500.50″Air temperature19°F now20°30°32°19°FNow · Fri 4 AM
Sat 10Sun 11Mon 12Tue 13Wed 14Thu 15Past 7 daysSnow water equivalent0.2″ now-0.500.50.2″Snow depth0″ now-0.500.50″Air temperature19°F now50°32°19°FNow · Fri 4 AM
SatSunMonTueWedThuPast 7 daysSnow water equivalent0.2″ now-0.500.50.2″Snow depth0″ now-0.500.50″Air temperature19°F now50°32°19°FNow · Fri 4 AM
0″5″10″OctNovDecJanFebMarAprMayJunJulMedian peak 15″ · Apr 190.2″ today
0″5″10″ONDJFMAMJJMedian peak 15″ · Apr 190.2″ today
<50%50–6970–8990–109110–129130–149150%+
0″2″8″16″32″+
0″6″24″48″100″+
Map
Open in the Vertex map

Next 3 days

The forecast for this station is on its way.

16-day outlook, three models

Snowpack vs. median

—%of the 1991–2020 median for today

Nearby SNOTEL stations

All Colorado
StationElevationDepth, 7 daysSWE% medianDepth48 h
University CampCO · 2 mi10,330 ft0.0″—1″+1″
SawtoothCO · 7 mi9,640 ft0.4″———
Lake EldoraCO · 7 mi9,700 ft1.4″—0″0″
High LonesomeCO · 11 mi10,630 ft0.1″—0″0″
Wild BasinCO · 12 mi9,410 ft0.0″0%0″0″
Copeland LakeCO · 12 mi8,570 ft0.0″—0″0″
Bear LakeCO · 20 mi9,490 ft0.4″—0″0″
Berthoud SummitCO · 20 mi11,300 ft0.3″—0″−1″

Station details

Elevation
9,940 ft
Location
40.0358°N, 105.5452°W
County
Boulder County, Colorado
Basin
St. Vrain · HUC 10190005
Network
NRCS SNOTEL · site 663
Station ID
663:CO:SNTL · SHEF NIWC2
Reporting since
October 1979
NWS forecast office
Denver/Boulder (BOU) discussion

Questions

What is snow water equivalent (SWE)?

SWE is the depth of water you would get by melting the whole snowpack. Fresh powder is often 5 to 10% water; old spring snow can be 40% or more.

How often does Niwot SNOTEL update?

The station reports every hour by radio telemetry to the USDA Natural Resources Conservation Service. This page refreshes each hour. Readings are provisional until NRCS quality control.

What does “% of median” mean?

It compares today’s SWE with the 1991–2020 median for the same calendar day at this station. Above 100% means more water in the snowpack than on a typical year’s same date.

Where is Niwot SNOTEL?

At 9,940 ft in Boulder County, Colorado (40.0358°N, 105.5452°W), in the St. Vrain basin.

How is the snow forecast made?

Vertex runs the HRRR, RRFS and GFS weather models at the station’s own elevation and carries the measured snowpack forward hour by hour. Treat it as guidance, and check your avalanche center’s forecast before heading out.