Fort Collins/Loveland, Colorado · field elev 5,020 ft
Density Altitude at Northern Colorado Regional (KFNL)
From a field elevation of 5,020 ft, a typical July afternoon at Northern Colorado Regional (89 °F) raises density altitude to about 7,996 ft — solidly into the range where performance charts deserve a close read.
Typical density altitude by month
| Month | Avg temp °F | DA at avg temp | Afternoon high °F | DA on a typical afternoon |
|---|---|---|---|---|
| January | 28.4 | 4,190 ft | 43.9 | 5,223 ft ▲ |
| February | 30.8 | 4,352 ft | 46.2 | 5,373 ft ▲ |
| March | 39.5 | 4,934 ft | 56.1 | 6,009 ft ▲ |
| April | 46.5 | 5,392 ft | 62.4 | 6,406 ft ▲ |
| May | 55.4 | 5,965 ft | 71.0 | 6,939 ft ▲ |
| June | 66.0 | 6,630 ft | 82.7 | 7,646 ft ▲ |
| July | 71.9 | 6,994 ft | 88.6 | 7,996 ft ▲ |
| August | 69.8 | 6,865 ft | 86.7 | 7,884 ft ▲ |
| September | 61.5 | 6,350 ft | 78.9 | 7,419 ft ▲ |
| October | 48.7 | 5,535 ft | 65.2 | 6,581 ft ▲ |
| November | 37.0 | 4,768 ft | 52.8 | 5,799 ft ▲ |
| December | 28.5 | 4,196 ft | 43.6 | 5,203 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 KFNL
DENSITY ALTITUDE high DA
Field elevation 5,020 ft — the air behaves like 8,020 ft.
- PRESSURE ALT
- 5,022 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 Colorado fields
- KGXY — Greeley-Weld County
Greeley · elev 4,697 ft
- KLMO — Vance Brand
Longmont · elev 5,055 ft
- 11V — Easton/Valley View
Greeley · elev 4,820 ft
- 18V — Platte Valley Airpark
Hudson · elev 4,965 ft
- KEIK — Erie Municipal
Erie · elev 5,119 ft
- KBDU — Boulder Municipal
Boulder · elev 5,288 ft
- KBJC — Rocky Mountain Metro
Denver · elev 5,673 ft
- KDEN — Denver International
Denver · elev 5,434 ft
Frequently asked questions
How high does density altitude get at KFNL in summer?
On a typical July afternoon — around 89 °F at the nearest NOAA normals station — density altitude at Northern Colorado Regional reaches roughly 7,996 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 KFNL on an average day?
It swings with the seasons: from roughly 4,190 ft at the coldest month's average temperature to about 6,994 ft at the warmest month's — all from a constant field elevation of 5,020 ft. The month-by-month table above carries the full year.
What is the field elevation of Northern Colorado Regional?
5,020 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KFNL (ICAO) / FNL (FAA), in Fort Collins/Loveland, Colorado.