Weather data at Quailhaven is gathered once a day for my convenience. During
standard time it's 5 PM to 5 PM for a 24 Hr time frame. During
daylight savings time it's 6 PM to 6 PM. Because
of this you might see some differences when comparing records at other sites.
Temperature, High and Low data, is gathered by a
Maximum / Minimum Thermometer. It is monitored through the day and
data updated as needed. It is measured and recorded on the Fahrenheit scale.
Rain fall data is gathered at about 5 PM / 6PM
daily for the preceding 24 Hours. During severe freezing conditions
the gauge is removed to avoid damage. It is then replaced after
temperatures warm. It is measured and recorded in inches.
Snow fall is
only a small number days out of the year. Depth of snow fall is stored
in the
Location Data Notes.
(See
Previous Months,
archived records, for older Location Data Notes.) Other unusually weather events are
noted in these notes.
Barometric pressure for the day is read at about 5 PM / 6 PM daily. It
is measured and recorded in Inches of Mercury. I do
monitor it during the day but the reading is not averaged. The same is
true for barometric movement.
Measurement and
record keeping started on November 12, 2005. Some previous rain fall
data, for the year of 2005, is courtesy of a neighbor near Quailhaven.
I compare
my readings to a National Weather Service reporting station a few miles
away. This helps verify my weather data measurements and fill in any missing data when I am away.
When I take my readings it is not in fractional
numbers. The data base uses lookup tables and calculations to arrive at
the metric conversion values. This may create a fractional number.
The displayed number is rounded off from
the actual whole number. Adding these rounded off values may not exactly sum in metric
as displayed. The data base uses the full value, not rounded off, in creating the
sum.
These are the formulas I use for converting from:
Fahrenheit to Celsius is (5/9)*(deg F-32) = Celsius.
Inches to Centimeters is (In*2.54) = Centimeters.
Inches of Mercury, In Hg, to Millibars is (33.8640325989891*In Hg)= Mb.
|
