Snow totals Mauna Loa, HI
As of October 8, 2026, Mauna Loa has recorded no snowfall for the 2026-27 season. The normal amount of snow that would have fallen by this date is 0.0 inches, while the full-season average for the city is 1.2 inches. The reading is a station observation from Mauna Loa Slope Obs 39 in the GHCN-Daily network. NOAA quality-checks the reading.
as of
Data from Mauna Loa Slope Obs 39, with records back to 1955. 12 percent of days since 1955 carry a reading, and the 2021-22 season reached 70 percent.
Most recent snowfall
2026-27 has produced no measurable snow at this station so far.
How much snow did Mauna Loa get?
| Snowfall to date | 0.0 inches | 2026-27 |
|---|---|---|
| Normal to date | 0.0 inches | 1991-2020 normal through October 8, 2026 |
| Snow days | 0 | days with measurable snowfall |
| Biggest day | n/a | |
| Last snow day | n/a | |
| Season average | 1.2 inches | 7 seasons on record |
In Mauna Loa, the median first measurable snow lands on January 31, GHCN-Daily records show. The earliest date on record is December 5 and the latest is February 15, a span that starts in 1955.
Mauna Loa snow season totals
| Season | Snowfall | Snow days |
|---|---|---|
| 2021-22 | 0.0 inches | 0 |
| 2020-21 | 2.0 inches | 2 |
| 2019-20 | 0.1 inches | 1 |
| 2018-19 | 0.7 inches | 1 |
| 2017-18 | 0.1 inches | 1 |
| 1959-60 | 0.2 inches | 1 |
| 1958-59 | 5.0 inches | 2 |
Station observations from GHCN-Daily, with a 1 to 3 day lag and quality checks.
Snowfall days at each threshold in Mauna Loa
| Season | 1+ in. | 3+ in. | 5+ in. | 10+ in. |
|---|---|---|---|---|
| 2021-22 | 0 | 0 | 0 | 0 |
| 2020-21 | 2 | 0 | 0 | 0 |
| 2019-20 | 0 | 0 | 0 | 0 |
| 2018-19 | 0 | 0 | 0 | 0 |
| 2017-18 | 0 | 0 | 0 | 0 |
| 1959-60 | 0 | 0 | 0 | 0 |
| 1958-59 | 1 | 1 | 0 | 0 |
| Average | 0.4 | 0.1 | 0.0 | 0.0 |
A day counts when its snowfall total meets or passes the column amount, from Mauna Loa Slope Obs 39 records in GHCN-Daily. The final row averages all 7 complete seasons, running from 1955 onward.
All-time snowfall records
| Biggest day | 4.5 inches | Dec 5, 1958 |
|---|---|---|
| Snowiest season | 5.0 inches | 1958-59 |
| Least snowy season | 0.0 inches | 2021-22 |
| Average season | 1.2 inches | 7 seasons on record |
| Record begins | 1955 | 3,230 daily readings |
Monthly snowfall normals
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Inches | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.6 |
Normals, the 1991-2020 average, come from NCEI.
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