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Armagh Meteorological Record Formats for April 1958

The format of the meteorological readings has changed many times over the years but the readings for April 1958 can be interpreted using the following table. The Column number refers to the columns on the readings counted from left to right and the Contents refers to the instrument or measurement being recorded.

ColumnContents
First Reading
1 Date
2 Barometer
3 Attached thermometer
4 Dry
5 Wet
6 Wind direction
7 Wind force
8 Cloud amount
9 Cloud form
10 Weather at time of obs
11 Weather since last obs
12 Rain auto
13 Rain 8" check
14 Total (ins)
15 Rain (mm)
16 Visibility
Second Reading
1 Date
2 Barometer (mb)
3 Barometer (ins)
4 Attached thermometer
5 VP
6 Humidity percentage
7 Grass min
8 In ground temperature 1ft
9 In ground temperature 4ft
10 Cloud direction
11 State of ground
Third Reading
1 Date
2 Barometer
3 Attached thermometer
4 Dry
5 Wet
6 Wind Direction
7 Wind force
8 Cloud amount
9 Cloud form
10 Weather at time of obs
11 Weather since last obs
12 Max (corrected)
13 Min (corrected)
14 Grass min
Fourth Reading
1 Date
2 Barometer (mb)
3 Barometer (ins)
4 Attached thermometer
5 VP
6 Humidity percentage
7 Visibility
8 Daily sunshine
9 Total sunshine
10 Cloud direction
11 State of ground

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Instruments Used

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Last Revised: 31st July 2001
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