โจ Meteorological Observations
GEOLOGICAL SURVEY OFFICE, DUNEDIN.
METEOROLOGICAL OBSERVATIONS.
SEPTEMBER, 1862. ALTITUDE ABOVE SEA, 350 FEET.
OBSERVATION AT 9 A.M.
| Date. Sept. 1862. | Thermometers. | Barometer. | Direction of Wind. | State of Sky. |
|---|---|---|---|---|
| Shade. Max. & Min. | Exposed to Sun. | Attached. | ||
| Dry. | Wet. | Max. | Min. | |
| Monday 1 | 48.3 | 43.3 | 52.5 | 38.0 |
| Tuesday 2 | 45.8 | 43.8 | 56.3 | 40.0 |
| Wednesday 3 | 43.8 | 36.3 | 50.0 | 34.0 |
| Thursday 4 | 40.0 | 39.1 | 45.0 | 37.0 |
| Friday 5 | 43.7 | 39.2 | 50.1 | 36.0 |
| Saturday 6 | 42.8 | 38.0 | 51.5 | 34.0 |
| Sunday 7 | 39.2 | 35.8 | 42.0 | 32.0 |
| Monday 8 | 51.0 | 49.8 | N.E. | 57.8 |
| Tuesday 9 | 48.0 | 42.0 | 51.0 | 38.0 |
| Wednesday 10 | 42.8 | 38.0 | 48.0 | 34.0 |
| Thursday 11 | 38.0 | 36.5 | 45.0 | 33.0 |
| Friday 12 | 40.0 | 39.0 | 48.5 | 35.0 |
| Saturday 13 | 48.0 | 43.0 | 59.0 | 35.5 |
| Sunday 14 | 52.0 | 49.0 | 62.0 | 45.0 |
SELF-REGISTERING INSTRUMENTS.---OBSERVATIONS AT 9 A.M. FOR 24 HOURS PREVIOUS.
| Date. Sept. 1862. | Max. Temp. Shade. | Min. Temp. Shade. | Max. Temp. Grass. | Min. Temp. Grass. | Max. Solar Radn. | Min. Solar Radn. | Max. Temp. in Sun. | Rain fall. | Amount of Rain. | Pressure of Wind on square foot. | Ozone. |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Deg. | Deg. | Deg. | Deg. | Deg. | Deg. | Deg. | Inches | Inches. | Lbs. | No. | |
| Monday 1 | 57 | 37 | 49 | 27 | 72 | 49 | 75 | 0.00 | .15 | 0.3 | 1 |
| Tuesday 2 | 53 | 42 | 48 | 37 | 53 | 44 | 73 | 0.07 | .15 | 5 | 3 |
| Wednesday 3 | 51 | 38 | 44 | 27 | 73 | 47 | 67 | 0.16 | .12 | 15 | 6 |
| Thursday 4 | 47 | 38 | 38 | 28 | 64 | 51 | 63 | .00 | .01 | 01 | 2 |
| Friday 5 | 50 | 39 | 44 | 32 | 80 | 53 | 73 | .01 | .01 | .0 | 1 |
| Saturday 6 | 52 | 38 | 47 | 30 | 74 | 52 | 75 | .08 | .08 | 3 | 5 |
| Sunday 7 | 47 | 33 | 42 | 23 | 65 | 47 | 62 | .00 | .00 | .0 | 0 |
| Monday 8 | 62 | 44 | 53 | 34 | 86 | 61 | 91 | .20 | .16 | .1 | 10 |
| Tuesday 9 | 55 | 39 | 48 | 32 | 80 | 59 | 83 | .04 | .09 | 1 | 7 |
| Wednesday 10 | 52 | 36 | 43 | 29 | 76 | 54 | 74 | .00 | .06 | .2 | 4 |
| Thursday 11 | 51 | 33 | 40 | 26 | 82 | 58 | 72 | .03 | .07 | .0 | 7 |
| Friday 12 | 52 | 36 | 43 | 29 | 84 | 64 | 80 | .01 | .05 | .0 | 6 |
| Saturday 13 | 59 | 40 | 51 | 33 | 95 | 73 | 85 | .12 | .15 | 15 | 7 |
| Sunday 14 | 64 | 46 | 56 | 39 | 102 | 74 | 93 | .09 | .20 | 8 | 5 |
ABSTRACT FOR THE MONTH.
- Mean Temperature at 10 a.m. ... ... Deg. 58.8 Fah.
- Mean Atmospheric pressure at 10 a.m. ... ... 29.764 inches
- Mean Temperature in shade ... ... Deg. 48.2 Fah.
- Mean daily range of Temperature in shade ... ... 18.4 ,
- Mean daily range between the extreme temperature of night and day ... ... 45.3 ,
- Mean humidity of Atmosphere saturation = 100 ... ... 68
- Mean amount of ozone (according to Moffatโs scale of 1 to 10) ... ... 5.2
- Mean pressure of wind on square feet ... ... 0.098 lbs.
- Total rain fall ... ... 1.215 inches
- Total evaporation ... ... 2.40 ,
- Temperature of soil on 15th at 2 feet below the surface ... ... 45.5 ,
- ,, ,, at 3 feet ... ... 45.1 ,
- ,, on 30th at 2 feet below the surface ... ... 48.5 ,
- ,, ,, at 3 feet ... ... 47.5 ,
The mean Temperature for the month is higher than the average for the corresponding month (March), in any part of the British Islands. Thusโ
Dunedin (at 350 feet above the sea) ... ... Deg. 48.2
Cork, the highest in Britain ... ... 48.0
London, altitude 50 feet ... ... 42.5
Edinburgh, altitude 220 feet ... ... 40.5
The average rain fall during the month of March, in London, has been exceeded by .04 inch.
Mr. Ross has kindly furnished his observations for the month, in time for comparison with those taken at this office.
His mean temperature for the month corresponding with that given above is 43.0, showing a decrease of 5 degrees due to the difference of altitude between the two stations.
The daily range of temperature in shade is 20 degrees, showing an excess of nearly 2 degrees over that experienced in Town.
The rain fall according to his observation is greater than that in Dunedin by .825 of an inch.
Dunedin, October 1st, 1862.
JAMES HECTOR
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โจ LLM interpretation of page content
๐ Meteorological Observations for September 1862
๐ Education, Culture & Science1 October 1862
Weather, Temperature, Barometer, Wind, Rainfall, Dunedin
- James Hector, Submitted meteorological observations
- JAMES HECTOR
Otago Provincial Gazette 1862, No 210