Nevada design temperatures
Outdoor heating and cooling design conditions for 8 Nevada weather stations. Choose the station nearest to you in distance and elevation, and check whether your building department specifies its own values.
| Station | Elevation | 99.6 % heating | 99 % heating | 1 % cooling / MCWB | 0.4 % cooling / MCWB | Use it |
|---|---|---|---|---|---|---|
| ElkoWMO 725825 · 1973–1996 | 5,135 ft | −4 °F | 2 °F | 93 / 59 °F | 95 / 60 °F | Load calculator |
| Ely/Yelland FieldWMO 724860 · 1973–1996 | 6,263 ft | −5 °F | 0 °F | 88 / 56 °F | 90 / 57 °F | Load calculator |
| Las Vegas/McCarranWMO 723860 · 1973–1996 | 2,179 ft | 29 °F | 32 °F | 106 / 66 °F | 109 / 67 °F | Load calculator |
| Mercury/Desert RockWMO 723870 · 1978–1996 | 3,311 ft | 25 °F | 28 °F | 101 / 65 °F | 103 / 65 °F | Load calculator |
| Nellis AFBWMO 723865 · 1967–1996 | 1,870 ft | 27 °F | 30 °F | 107 / 68 °F | 109 / 68 °F | Load calculator |
| Reno/Cannon IntlWMO 724880 · 1973–1996 | 4,400 ft | 10 °F | 15 °F | 93 / 60 °F | 95 / 61 °F | Load calculator |
| TonopahWMO 724855 · 1973–1996 | 5,427 ft | 8 °F | 13 °F | 93 / 58 °F | 95 / 59 °F | Load calculator |
| WinnemuccaWMO 725830 · 1973–1996 | 4,315 ft | 2 °F | 8 °F | 95 / 60 °F | 98 / 62 °F | Load calculator |
Using these values
- Heat-loss calculations for homes commonly use the 99 % heating value, and cooling loads the 1 % dry bulb with its mean coincident wet bulb (MCWB). The 99.6 % and 0.4 % values are more conservative.
- “Load calculator” opens the heating and cooling load calculator with that station’s 99 % and 1 % temperatures and its design moisture difference (outdoor air at the 1 % condition versus 75 °F, 50 % RH indoors, at the station’s elevation).
- Source: U.S. Air Force Combat Climatology Center and NOAA National Climatic Data Center, Engineering Weather Data (1999; public domain). Each station’s period of record is shown under its name; they end by 1996, and the climate has warmed since, so check local requirements before relying on a value for a permit.