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This graph shows the recorded temperature for the last 12 hours. The temperature sensor is housed in a radiation shield, which helps give more accurate readings. The temperature sensor is location about 40 feet in the air, which may result in warm readings during nights with good radiational cooling.

Stated Tolerances of Temperature Sensor:

Outside Temperature: ± 1° F at -50, -15, 0, 40, 80, 140° F (± 0.5° C at -45, -26, -18, 4, 27, and 60° C)

Secondary Temperature and Humidity snesors. Location of station is at 1 foot above ground level. This allows for both a cross-check with the roof-top measurements, as well as for sensing of surface temperature inversions.

Stated Tolerance of Wireless Temp/Hum Sensor:

Resolution: 1° F
Outside Temperature: ± 1° F under 110° , ± 2° F over 110° F
Update Interval: 12 secs or less
+2°F Error at Solar Noon (@1040W/m2, 2mph wind)

Secondary Humidity sensor. Located one foot off the ground.

Stated Tolerance of Humidity 2 Sensor:
Outside Humidity: ± 3%
Update Interval < 1minute

This graph gives the current wind speed at 40 feet in the air. Increasing winds often herald a change in weather, or a large storm nearby. The location of the wind cups is sheltered from the North, and unsheltered to the South. This may result in lower readings for Northern winds.

Stated Tolerances of Anemometer:

: ± 5% at 6, 12, 25, 40, and 75 mph

This graph shows, if any, the amount of rain received over the last 12 hours.

Rain Fall Measurement Tolerance:

± 4% plus one tip (0.01")

This graph shows you the total rainfall for the current rain event. A rain event can span several days, so this graph only resets a day or so after the rain stops.

Rain Fall Measurement Tolerance:

± 4% plus one tip (0.01")

This graph shows the Barometer over the last 3 days. Rapid changes of Barometric pressure is indicative of bad weather approaching. Pressure usually falls when a storm is approaching, and generally increasing after the storm passes. The Barometric sensor is located in the server room, and is about 30 feet above Sea Level. Uses data from the console indoors.

Stated Tolerance of Barometer:

± 0.05" Hg

This graph gives you a plot of the recorded temperature over the last 3 days. Rapid changes in Temperature usually mean frontal passage- including Sea Breeze fronts. The diurnal variation in temperature is usually quite apparent in this graph. Uses sensor 1.

Stated Tolerances of Temperature Sensor:

Outside Temperature: ± 1° F at -50, -15, 0, 40, 80, 140° F (± 0.5° C at -45, -26, -18, 4, 27, and 60° C)

This graph shows the Dew Point over the last three days. If you look carefully, you may see patterns in this graph based on the other Meteorological graphs. Uses sensor 1.

Stated Tolerance of Moisture Sensor:

Outside Humidity: ± 3%

The three-day rainfall graph shows the amount of rain by time period over the last 3 days. It is interesting to look at the correlation between Temperature, Wind Direction, Barometric Pressure and Rain Fall.

Rain Fall Measurement Tolerance:

± 4% plus one tip (0.01")