Massena, New York · field elev 222 ft
Density Altitude at Massena International-Richards Field (KMSS)
Massena International-Richards Field sits at 222 ft, and even a typical July afternoon (81 °F) only lifts density altitude to about 1,689 ft — heat still trims performance, but the field rarely turns high-and-hot.
Typical density altitude by month
| Month | Avg temp °F | DA at avg temp | Afternoon high °F | DA on a typical afternoon |
|---|---|---|---|---|
| January | 15.6 | −2,718 ft | 25.4 | −2,009 ft |
| February | 17.8 | −2,557 ft | 28.2 | −1,810 ft |
| March | 28.5 | −1,789 ft | 38.2 | −1,110 ft |
| April | 42.9 | −787 ft | 53.7 | −58 ft |
| May | 55.9 | 88 ft | 67.9 | 871 ft |
| June | 64.8 | 671 ft | 76.2 | 1,400 ft |
| July | 69.5 | 974 ft | 80.8 | 1,689 ft |
| August | 67.5 | 845 ft | 78.9 | 1,570 ft |
| September | 59.5 | 325 ft | 71.2 | 1,083 ft |
| October | 47.5 | −474 ft | 57.5 | 194 ft |
| November | 35.8 | −1,276 ft | 44.6 | −671 ft |
| December | 23.8 | −2,124 ft | 32.1 | −1,535 ft |
▲ above 5,000 ft · ⚠ above 8,000 ft. These are planning references at standard pressure and dry air — afternoon humidity and low pressure both push the real number higher. Run today's values below.
Run today’s numbers for KMSS
DENSITY ALTITUDE
Field elevation 222 ft — the air behaves like 1,702 ft.
- PRESSURE ALT
- 223 ft
- ISA DEVIATION
- —
- RULE-OF-THUMB DA
- —
- AIR DENSITY INDEX
- —
- AIR DENSITY
- —
- WATER · GRAINS/LB
- —
For training and reference · verify with official sources and your POH before flight · no tool on this site renders a go / no-go judgment
Nearby New York fields
- KPTD — Potsdam Municipal/Damon Field
Potsdam · elev 474 ft
- KMAL — Malone-Dufort
Malone · elev 790 ft
- KOGS — Ogdensburg International
Ogdensburg · elev 302 ft
- 1E8 — Degrasse Moores
Degrasse · elev 815 ft
- KSLK — Adirondack Regional
Saranac Lake · elev 1,663 ft
- KLKP — Lake Placid
Lake Placid · elev 1,747 ft
- KPBG — Plattsburgh International
Plattsburgh · elev 234 ft
- 1I1 — Marcy Field
Keene · elev 985 ft
Frequently asked questions
How high does density altitude get at KMSS in summer?
On a typical July afternoon — around 81 °F at the nearest NOAA normals station — density altitude at Massena International-Richards Field reaches roughly 1,689 ft at standard pressure. Hotter-than-normal days, low pressure, and humidity all push it higher, so run the day's actual numbers before flying.
What is the density altitude at KMSS on an average day?
It swings with the seasons: from roughly −2,718 ft at the coldest month's average temperature to about 974 ft at the warmest month's — all from a constant field elevation of 222 ft. The month-by-month table above carries the full year.
What is the field elevation of Massena International-Richards Field?
222 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KMSS (ICAO) / MSS (FAA), in Massena, New York.