ABSTRACT OF METEOROLOGICAL OBSERVATIONS TAKEN AT DUNEDIN, OTAGO, NEW ZEALAND, FOR THE YEAR 1875, DAILY, AT 9.0 A.M. N.Z. MEAN TIME

LATITUDE, 45 DEG. 52 MIN. 12 SEC. S. LONGITUDE, 170 DEG. 32 MIN. 37 SEC. E. ALTITUDE ABOVE SEA LEVEL, 500 FEET. DISTANCE FROM SEA, 3 MILES.

| 1875 MONTHS | ATMOSPHERIC PRESSURE. Mean for MONTH. | | | | | TEMPERATURE. From Self-Registering Instruments, Fah. Scale. | | | | | | | | | EXPOSED THERMOMETERS. | | | | | MEAN DEW POINT. | MEAN HUMIDITY Saturation = 100. | RAIN. | | | | WIND. (At 9 a.m.) | | | | | | | | | | | | 0 = CLEAR SKY; 10 = OVERCAST CLOUDS. | REMARKS. | 1875 |
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| | Barometer (Air & Aqueous Vapour.) | Elastic force of Vapour. | Highest Reading. | Date. | Lowest Reading. | Date. | Approximate Range for Month. | Mean Maximum for Month. | Mean Minimum for Month. | Mean Temperature for Month. | Mean Daily Range for Month. | Maximum for Month. | Date. | Minimum for Month. | Date. | Extreme Range for Month. | Mean Temp. of Evap. for Month. | Maximum in Sun's Rays. | Date. | Minimum on Grass. | Date. | Mean for Month. | | | Number of Days on which rain fell. | Amount Collected. | Greatest Rainfall in one day. | Date. | Number of days on which it blew from each point. | | | | | | | | | Mean Velocity in miles per day. | Greatest Velocity in miles for one Day. | Date. | | | |
| | in. | in. | in. | | in. | | in. | ° | ° | ° | ° | ° | | ° | | ° | ° | ° | | ° | | ° | | | | in. | in. | | N. | N.E. | E. | S.E. | S. | S.W. | W. | N.W. | Calms. | | | | | | |
| Jan. | 29.533 | .385 | 29.935 | 10 | 29.014 | 24 | 0.921 | 66.3 | 50.3 | 58.3 | 16.0 | 72 | 7 | 42 | 5 | 30 | 54.9 | 159 | 30 | 136 | 33 | 24.45 | 51.8 | 89.0 | 14 | 3.790 | 1.000 | 2 | 5 | 5 | 4 | 2 | 8 | 2 | 2 | 0 | 3 | 116 | 345 | 25 | 6 | High wind on 24th from S.W. Heavy rain on 2nd. Thunder storm on 24th. | January |
| Feb. | 29.774 | .371 | 30.070 | 12 | 29.314 | 17 | 0.756 | 66.2 | 49.7 | 58.4 | 16.5 | 82 | 11 | 38 | 28 | 44 | 54.4 | 161 | 11 | 138 | 37 | 28.46 | 50.8 | 76.0 | 9 | 1.288 | 0.384 | 24 | 5 | 2 | 0 | 1 | 7 | 10 | 0 | 0 | 3 | 145 | 465 | 19 | 6 | High winds on 11th, 18th, and 19th, from S.W. Hail on 27th. Aurora on 27th. | Feb. |
| March | 29.792 | .324 | 30.340 | 10 | 28.917 | 21 | 1.423 | 64.1 | 47.7 | 55.9 | 16.4 | 72 | 11 | 35 | 23 | 37 | 51.8 | 144 | 3 | 122 | 33 | 23.43 | 47.9 | 75.3 | 10 | 1.910 | 0.680 | 14 | 5 | 3 | 1 | 0 | 0 | 4 | 6 | 1 | 11 | 135 | 485 | 22 | 5 | High wind on 21st from S.W. Lightning on 21st. | March |
| April | 29.996 | .342 | 30.446 | 8 | 29.484 | 30 | 0.962 | 60.4 | 47.2 | 53.8 | 13.2 | 72 | 13 | 37 | 25 | 35 | 51.1 | 122 | 2 | 100 | 33 | 25.44 | 48.5 | 81.9 | 8 | 1.910 | 0.720 | 23 | 0 | 6 | 1 | 2 | 3 | 1 | 4 | 0 | 13 | 143 | 370 | 25 | 5 | Fine with light showers. Atmospheric pressure high. | April |
| May | 29.628 | .265 | 29.993 | 7 | 28.896 | 16 | 1.097 | 51.8 | 41.1 | 46.5 | 10.6 | 62 | 1 | 33 | 3 | 29 | 44.3 | 106 | 1 | 83 | 30 | 18.37 | 41.8 | 84.6 | 15 | 6.770 | 1.030 | 4 | 0 | 8 | 0 | 1 | 0 | 10 | 5 | 0 | 7 | 204 | 365 | 4 | 7 | High winds on 4th and 20th from S.W. Hail on 1st and 26th. Snow on 1st. Thunder on 1st. | May |
| June | 29.795 | .233 | 30.360 | 9 | 29.095 | 30 | 1.265 | 48.0 | 38.5 | 43.3 | 9.5 | 58 | 28 | 32 | 20 | 26 | 41.1 | 89 | 16 | 70 | 23 | 20.37 | 38.5 | 82.7 | 9 | 1.810 | 0.610 | 5 | 0 | 6 | 0 | 0 | 0 | 6 | 9 | 0 | 9 | 112 | 440 | 5 | 5 | High wind on 5th. Snow fell on 5th. Solar spots frequent. | June |
| July | 29.702 | .223 | 30.145 | 28 | 29.233 | 12 | 0.912 | 48.2 | 37.7 | 42.9 | 10.4 | 57 | 31 | 32 | 25 | 25 | 40.3 | 107 | 31 | 78 | 28 | 4.34 | 37.3 | 80.8 | 17 | 1.883 | 0.340 | 12 | 0 | 3 | 0 | 1 | 0 | 5 | 13 | 0 | 9 | 240 | 630 | 7 | 6 | High winds on 6th, 12th, and 14th from S.W. Weather showery. | July |
| Aug. | 29.692 | .227 | 30.296 | 6 | 28.965 | 23 | 1.331 | 48.0 | 37.3 | 42.6 | 10.6 | 56 | 11 | 31 | 4 | 25 | 40.4 | 106 | 19 | 88 | 28 | 4.33 | 37.8 | 83.6 | 12 | 7.092 | 2.510 | 23 | 0 | 12 | 2 | 0 | 0 | 10 | 2 | 0 | 5 | 245 | 515 | 29 | 6 | High wind on 29th from S.W. Heavy rainfall on 23rd and 24th. Solar spots rare. | August |
| Sept. | 29.730 | .238 | 30.259 | 27 | 29.198 | 4 | 1.061 | 53.2 | 38.7 | 46.0 | 14.4 | 64 | 2 | 34 | 15 | 30 | 42.8 | 140 | 25 | 106 | 31 | 6.34 | 39.1 | 77.8 | 13 | 2.200 | 0.600 | 14 | 1 | 6 | 2 | 0 | 1 | 11 | 1 | 2 | 6 | 174 | 350 | 12 | 6 | Weather very changeable except from 5th to 15th, when it was very fine. | Sept. |
| Oct. | 29.543 | .270 | 29.829 | 14 | 29.127 | 20 | 0.702 | 56.8 | 41.8 | 49.3 | 15.0 | 66 | 8 | 32 | 3 | 34 | 45.8 | 136 | 28 | 118 | 29 | 3.38 | 42.3 | 76.9 | 14 | 3.088 | 0.800 | 26 | 0 | 7 | 2 | 0 | 3 | 11 | 1 | 1 | 6 | 176 | 470 | 13 | 7 | High winds from 9th to 14th from S.W. Thunder on 24th. Snow fell on 3rd and 11th. Hail on 2nd, 11th and 27th. Fog occurred on 24th and 25th. Large solar spot on 30th. | Oct. |
| Nov. | 29.483 | .294 | 29.868 | 30 | 29.051 | 4 | 0.817 | 56.7 | 43.6 | 50.1 | 13.1 | 71 | 14 | 39 | 2 | 32 | 49.0 | 155 | 17 | 122 | 36 | 25.41 | 44.5 | 81.8 | 18 | 5.502 | 1.750 | 23 | 1 | 9 | 1 | 1 | 8 | 4 | 0 | 0 | 6 | 169 | 430 | 28 | 7 | High wind on 24th from S.W. Heavy rain on 23rd. Atmospheric pressure low. | Nov. |
| Dec. | 29.677 | .364 | 30.161 | 21 | 29.064 | 8 | 1.097 | 65.8 | 49.3 | 57.5 | 16.5 | 81 | 31 | 43 | 19 | 38 | 53.7 | 162 | 31 | 134 | 37 | 4.44 | 50.2 | 76.9 | 18 | 5.388 | 1.858 | 31 | 1 | 8 | 4 | 1 | 6 | 6 | 0 | 0 | 5 | 121 | 530 | 1 | 5 | Thunder on 4th, 6th, 7th, 8th, and 30th. Fog on 28th. Heavy rain on 31st. | Dec. |
| Year | 29.695 | .295 | 30.446 | 8 | 28.896 | 16 | 1.550 | 57.1 | 43.6 | 50.4 | 13.5 | 82 | 11 | 31 | 4 | 51 | 47.5 | 162 | 31 | 108 | 23 | 20.40 | 44.2 | 80.6 | 157 | 42.632 | 2.510 | 23 | 18 | 75 | 17 | 9 | 36 | 80 | 43 | 4 | 83 | 165 | 630 | 7 | 6 | On 64 out of the 157 days on which rain fell the amount collected did not exceed one-tenth (0.1) of an inch. | Year |
| | | | | April | | May | | | | | | Feb. | | Aug. | | | Dec. | | | July | | | | | | | Aug. | | | | | | | | | | | | | July | | | |

Note.—The barometrical readings are corrected for index error, capillary action, and reduced to 32 deg. Fah. and sea level
The Thermometers are corrected for index errors, ascertained by comparison with a standard from Kew
The temperature of the dew point, the elastic force of vapour, and degrees of humidity are computed from the simultaneous observations of the wet and dry bulb thermometers
In reading the preceding table it should be borne in mind that all self-registering instruments are recorded at the morning observation, and therefore the results noted occurred during the preceding 24 hours.
HENRY SKEY, Observer.