Jamestown, Tennessee · field elev 1,694 ft
Density Altitude at Jamestown Municipal (2A1)
Jamestown Municipal sits at 1,694 ft, and even a typical July afternoon (84 °F) only lifts density altitude to about 3,702 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 | 34.7 | 483 ft | 44.6 | 1,156 ft |
| February | 37.9 | 702 ft | 48.6 | 1,424 ft |
| March | 46.0 | 1,250 ft | 57.8 | 2,029 ft |
| April | 54.8 | 1,833 ft | 67.5 | 2,654 ft |
| May | 63.6 | 2,404 ft | 74.7 | 3,108 ft |
| June | 71.1 | 2,882 ft | 81.8 | 3,548 ft |
| July | 74.1 | 3,070 ft | 84.3 | 3,702 ft |
| August | 73.5 | 3,033 ft | 84.0 | 3,684 ft |
| September | 67.0 | 2,622 ft | 78.1 | 3,320 ft |
| October | 56.2 | 1,925 ft | 68.8 | 2,736 ft |
| November | 45.6 | 1,224 ft | 57.3 | 1,997 ft |
| December | 38.2 | 723 ft | 48.0 | 1,384 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 2A1
DENSITY ALTITUDE
Field elevation 1,694 ft — the air behaves like 3,684 ft.
- PRESSURE ALT
- 1,695 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 Tennessee fields
- 8A3 — Livingston Municipal
Livingston · elev 1,372 ft
- KSCX — Scott Municipal
Oneida · elev 1,545 ft
- KCSV — Crossville Meml-Whitson Field
Crossville · elev 1,882 ft
- KRKW — Rockwood Municipal
Rockwood · elev 1,664 ft
- KSRB — Upper Cumberland Regional
Sparta · elev 1,025 ft
- 1A7 — Jackson County
Gainesboro · elev 517 ft
- KJAU — Colonel Tommy C Stiner Airfield
Jacksboro · elev 1,180 ft
- 0A3 — Smithville Municipal
Smithville · elev 1,084 ft
Frequently asked questions
How high does density altitude get at 2A1 in summer?
On a typical July afternoon — around 84 °F at the nearest NOAA normals station — density altitude at Jamestown Municipal reaches roughly 3,702 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 2A1 on an average day?
It swings with the seasons: from roughly 483 ft at the coldest month's average temperature to about 3,070 ft at the warmest month's — all from a constant field elevation of 1,694 ft. The month-by-month table above carries the full year.
What is the field elevation of Jamestown Municipal?
1,694 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 2A1 (FAA), in Jamestown, Tennessee.