Skip to content
WeatherTotals

Islip snow in 2020-21

Islip recorded 33.5 inches of snow in 2020-21, against a 1991-2020 normal of 31.8 inches. Measurable snow, at 0.1 inch or more, fell on 14 days at Islip Long Island MacArthur Airport, and the largest single fall was 10.3 inches on Feb 1, 2021. The total was 1.7 inches above the 1991-2020 normal, 5% above normal. In the station record, the season ranks 25th snowiest among 63 complete seasons, with data from 1963.

Earlier season: 2019-20Later season: 2021-22Back to the Islip snow page

Islip snow in 2020-21

Islip snow in 2020-21
Season total33.5 inches2020-21
1991-2020 normal31.8 inchesNormals, the 1991-2020 average, come from NCEI.
Departure vs normal+1.7 inches (+5%)105% of normal
Season rank25th of 63Complete seasons, snowiest first, record from 1963
Measurable days14
Largest day10.3 inches

Snow by month in 2020-21

Measured total1991-2020 normal
Monthly snow totals for 2020-21. Dark bars show measured amounts, light bars show the 1991-2020 normal for comparison.

Every measurable snow day in 2020-21

Every measurable snow day in 2020-21: Islip
DateSnowfall
0.4 inches
1.4 inches
3.9 inches
1.8 inches
6.4 inches
0.4 inches
0.3 inches
10.3 inches
0.8 inches
0.1 inches
0.2 inches
0.1 inches
1.7 inches
5.7 inches

The readings come from Islip Long Island MacArthur Airport, a GHCN-Daily station whose record begins in 1963. Station observations from GHCN-Daily, with a 1 to 3 day lag and quality checks.

Under 17 U.S.C. 105, no copyright attaches to the government-produced figures on this page, including reports, alerts, station observations, and normals, which were created by the National Weather Service and other NOAA offices. The notice that 17 U.S.C. 403 requires appears in this sentence. It does not imply endorsement by or affiliation with those agencies. See: Data sources and attribution.