Wx Chez Butternut

Legend

Gray/Light Background: night/day, using the astronomical definition of sunrise and sunset (upper edge of sun's disk on the horizon). Intermediate area marks civil twilight (center of sun 6° below the horizon).
Temperature: the dark line is today's temperature, the lighter one is yesterday's.
Dewpoint: the choppy blue Woodstock chatter lines indicate dewpoint in degrees F.
Wind Speed: The circle at top left is wind speed and direction over the last hour. Speed is on a linear scale: calm is at center, 12 mph is about halfway from center to circle's edge, and the edge itself is 25 mph. Bright green means recent data (last 3 minutes), darker means older data.
Max Wind Speed: The blueish lines coming from the top indicate maximum wind speed. They change color at 10, 20, and 30 mph.
Pressure: the faint line at bottom shows atmospheric pressure. No units: it's just there for seeing trends.

Station:	Davis Vantage Vue, installed September 2010.
Location:	7-foot pole on top of white metal roof
Software:	Data collection by wview. This page, and the graph above, custom-written by Ed using that data. Host is a Raspberry Pi 2 running Debian Linux.
Other Links:	Los Alamos Airport Weather Conventional wview plots for this weather station. CWOP plots Site data analysis