Events

Snowfall

42 snowfall reports are on file.

Snowfall is graded storm by storm, not as part of the daily temperature board. A forecast range such as 4–8 inches keeps both ends. The absolute error uses the midpoint. A hit is an observation inside the inclusive range. Station snowfall below is the daily snow element for the scored airports. A forecast range is shown when a source has published one.

Snow and ice events

A storm that is still going is listed first. The damage map keeps National Weather Service snow and ice reports inside that event's search area.

The storm. Tropical cyclones, severe outbreaks, floods, and snow and ice are listed when they are on file. Invests and test storms are not listed. SpanThe first and last dates on file for this storm.
Sierra Nevada and Intermountain West snow Damage map Oct 31, 2026 – Nov 1, 2026
The forecast source this row scores. Where this snow or severe report applies. CallThe forecast this row checks. The technical name is the call. The forecast range. A single number is a range whose ends are equal. ObservedThe observation this forecast is checked against. Midpoint errorDistance from what happened to the middle of the forecast range. A hit inside the range can be 0. The technical name is midpoint error. HitYes when what happened is inside the forecast range, including the ends.
ACIS Caribou, Caribou Municipal Airport (KCAR) Snowfall — trace — —
ACIS Fairbanks, Fairbanks International Airport (PAFA) Snowfall — trace — —
ACIS Fairbanks, Fairbanks International Airport (PAFA) Snowfall — 0.3 in — —
ACIS Fairbanks, Fairbanks International Airport (PAFA) Snowfall — 0.3 in — —
ACIS Topeka, Philip Billard Municipal Airport (KTOP) Snowfall — trace — —
ACIS Fairbanks, Fairbanks International Airport (PAFA) Snowfall — trace — —
ACIS Fairbanks, Fairbanks International Airport (PAFA) Snowfall — trace — —
ACIS Fairbanks, Fairbanks International Airport (PAFA) Snowfall — 5.4 in — —
ACIS Duluth International Airport (KDLH) Snowfall — trace — —
ACIS Fairbanks, Fairbanks International Airport (PAFA) Snowfall — 0.3 in — —
ACIS Fairbanks, Fairbanks International Airport (PAFA) Snowfall — trace — —
ACIS Great Falls, Great Falls International Airport (KGTF) Snowfall — 3.2 in — —
ACIS Helena Regional Airport (KHLN) Snowfall — 1 in — —
ACIS El Paso, El Paso International Airport (KELP) Snowfall — trace — —
ACIS Fairbanks, Fairbanks International Airport (PAFA) Snowfall — trace — —
ACIS Anchorage, Ted Stevens Anchorage International Airport (PANC) Snowfall — 0.5 in — —
ACIS Fairbanks, Fairbanks International Airport (PAFA) Snowfall — 1.2 in — —
ACIS Anchorage, Ted Stevens Anchorage International Airport (PANC) Snowfall — 0.3 in — —
ACIS Fairbanks, Fairbanks International Airport (PAFA) Snowfall — 2.8 in — —
ACIS Fairbanks, Fairbanks International Airport (PAFA) Snowfall — 2.1 in — —
ACIS Caribou, Caribou Municipal Airport (KCAR) Snowfall — 0.3 in — —
ACIS Cheyenne, Cheyenne Airport (KCYS) Snowfall — trace — —
ACIS Fairbanks, Fairbanks International Airport (PAFA) Snowfall — trace — —
ACIS Fairbanks, Fairbanks International Airport (PAFA) Snowfall — trace — —
ACIS Caribou, Caribou Municipal Airport (KCAR) Snowfall — 0.3 in — —
ACIS Topeka, Philip Billard Municipal Airport (KTOP) Snowfall — trace — —
ACIS Anchorage, Ted Stevens Anchorage International Airport (PANC) Snowfall — trace — —
ACIS Great Falls, Great Falls International Airport (KGTF) Snowfall — 0.3 in — —
ACIS Billings, Billings Logan International Airport (KBIL) Snowfall — trace — —
ACIS Great Falls, Great Falls International Airport (KGTF) Snowfall — 9.3 in — —
ACIS Billings, Billings Logan International Airport (KBIL) Snowfall — trace — —
ACIS Missoula, Missoula International Airport (KMSO) Snowfall — trace — —
ACIS Fairbanks, Fairbanks International Airport (PAFA) Snowfall — trace — —
ACIS Great Falls, Great Falls International Airport (KGTF) Snowfall — 6.4 in — —
ACIS Helena Regional Airport (KHLN) Snowfall — 1.9 in — —
ACIS Fairbanks, Fairbanks International Airport (PAFA) Snowfall — trace — —
ACIS Fairbanks, Fairbanks International Airport (PAFA) Snowfall — trace — —
ACIS Fairbanks, Fairbanks International Airport (PAFA) Snowfall — trace — —
ACIS Anchorage, Ted Stevens Anchorage International Airport (PANC) Snowfall — trace — —
ACIS Fairbanks, Fairbanks International Airport (PAFA) Snowfall — trace — —
ACIS Anchorage, Ted Stevens Anchorage International Airport (PANC) Snowfall — 0.1 in — —
ACIS Fairbanks, Fairbanks International Airport (PAFA) Snowfall — 0.1 in — —

Daily snowfall is the snow element from RCC-ACIS for the scored airports (NWS and COOP stations; CoCoRaHS is included only where that gauge is the ACIS station). A trace is shown and a zero is omitted. The NOHRSC national gridded snowfall analysis ingests ASOS, COOP, CoCoRaHS, FAA, and NWS spotter reports; this card uses the station element instead of sampling that grid. ACIS is a free service of the NOAA Regional Climate Centers (https://www.rcc-acis.org/). Please credit the Regional Climate Centers. NOAA snowfall analyses are U.S. government work and in the public domain (17 U.S.C. § 105).