ABSTRACT OF METEOROLOGICAL OBSERVATIONS TAKEN AT DUNEDIN, OTAGO, NEW ZEALAND, FOR THE YEAR 1866.

LATITUDE, 45° 52' 11" S. LONGITUDE, 170° 31' 7" E. ALTITUDE ABOVE SEA LEVEL, 550 FEET.

| 1866. | ATMOSPHERIC PRESSURE. From the 9.30 A.M., 4.30 P.M., and 9.30 P.M. Observations. | | | | | | TEMPERATURE From Self-Registering Instruments, Fahl Scale, at 9.30 A.M. | | | | | | | | | RAIN. (9.30 A.M.) | | | WIND. (At 9.30 A.M.) | | | | | | CLOUDS | REMARKS. |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MONTHS | Barometer (Air and Aqueous Vapour) | Elastic Force of Vapour | Highest Reading on. | Lowest Reading on. | Approximate Range for Month | Mean Maximum for Month | Mean Minimum for Month | Mean Temperature for Month | Maximum for Month | Date. | Minimum for Month | Date. | Mean Daily Range for Month | Between Maximum and Minimum for Month | Maximum. | Date. | Minimum. | Date. | Mean Temperature from 9.30 A.M. to 9.30 P.M. Computed from Dew Point, Humidity, and Solar Radiation, =100 Observations. | No. 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. | | | |
| | Inches | Inches | Inches | Inches | Inch. | ° | ° | ° | ° | | ° | | ° | ° | ° | | ° | | ° | | Inches. | Inch. | | N. | N.E. | E. | S.E. | S. | S.W. | W. | N.W. | Calm. | 0=clear; 5=5; 10=overcast. | |
| February | 29.872 | .309 | 30.370 | 29.206 | 1.164 | 66.0 | 49.0 | 57.5 | 86.0 | 9 | 40.0 | 27 | 17.0 | 46.0 | 109 | 874 | 28 | 65 | 836 | 20 | 45.8 | 70.0 | 21 | 4.911 | 1.670 | 20 | 1 | 6 | 1 | 2 | 2 | 1 | 9 | 2 | 7 | 185 | 6 | High wind from SW on 14th. Fog prevailed on 4th and 24th. |
| March | 29.958 | .352 | 30.372 | 29.597 | 0.775 | 66.0 | 50.2 | 58.1 | 77.0 | 2 | 42.0 | 27 | 15.8 | 35.0 | 105 | 670 | 12 | 50 | 1938 | 16 | 49.3 | 75.2 | 16 | 3.932 | 1.034 | 14 | 0 | 4 | 3 | 0 | 3 | 1 | 9 | 1 | 7 | 128 | 6 | Great storm of wind and rain on the 20th from SW. Aurora Australis seen on 21st. |
| April | 30.067 | .291 | 30.551 | 29.502 | 1.049 | 62.0 | 45.8 | 53.9 | 74.0 | 28 | 36.0 | 31 | 16.1 | 38.0 | 96 | 2163 | 31 | 49 | 2730 | 31 | 44.5 | 72.9 | 13 | 1.762 | 0.430 | 16 | 4 | 3 | 2 | 0 | 1 | 2 | 12 | 1 | 6 | 190 | 5 | Lunar halo seen on 31st. High winds occurred on 22nd and 23rd from W. Hail fell on 22nd. Fog prevailed on 15th. |
| May | 29.892 | .252 | 30.380 | 29.089 | 1.291 | 59.0 | 42.6 | 50.8 | 74.0 | 14 | 34.0 | 8 | 16.4 | 40.0 | 89 | 1761 | 30 | 45 | 1329 | 7 | 40.5 | 70.9 | 17 | 0.732 | 0.130 | 17 | 1 | 2 | 1 | 0 | 1 | 5 | 12 | 2 | 6 | 206 | 5 | Lunar halo seen on 27th. Great storm on 18th from W. Gale on 25th from W. Hail fell on 7th. Fog prevailed on 31st and 24th. |
| June | 30.141 | .251 | 30.650 | 29.372 | 1.278 | 56.0 | 41.8 | 48.9 | 66.0 | 14 | 33.0 | 21 | 14.1 | 33.0 | 88 | 2389 | 26 | 49 | 1028 | 2 | 40.3 | 77.6 | 13 | 0.974 | 0.200 | 26 | 0 | 3 | 0 | 0 | 0 | 4 | 6 | 11 | 177 | 4 | High winds occurred on 1st from SW and W; on 2nd, 3rd, and 5th from W. Snow fell on 1st. Fog prevailed on 9th and 13th. Hail fell on 1st. |
| July | 29.920 | .213 | 30.593 | 28.820 | 1.773 | 53.2 | 38.5 | 45.9 | 61.0 | 19 | 32.0 | 11 | 14.7 | 29.0 | 73 | 2050 | 24 | 40 | 2727 | 24 | 36.1 | 73.9 | 11 | 1.707 | 0.350 | 10 | 1 | 5 | 0 | 0 | 0 | 2 | 15 | 7 | 6 | 326 | 5 | Gales occurred on 12th, 13th, and 22nd from W, and on 21st from NW. The lunar halo seen on 24th and 25th. Shooting stars seen frequently on 19th. Snow fell on 22nd. Thunderstorm on 29th. Fog on 5th and 22nd. |
| August | 30.069 | .210 | 30.529 | 29.312 | 1.217 | 49.0 | 36.7 | 42.3 | 63.0 | 9 | 30.0 | 24 | 11.3 | 33.0 | 70 | 948 | 19 | 38 | 923 | 16 | 35.7 | 65.8 | 18 | 2.856 | 1.140 | 18 | 1 | 7 | 0 | 0 | 1 | 2 | 7 | 1 | 12 | 143 | 5 | A gale occurred on 1st from SW and W. Lunar halo seen on 25th. Fog prevailed on 24th. |
| September | 29.997 | .223 | 30.592 | 29.252 | 1.340 | 53.8 | 39.2 | 46.4 | 62.0 | 28 | 32.0 | 18 | 14.5 | 30.0 | 85 | 2854 | 6 | 40 | 1026 | 21 | 37.4 | 75.2 | 15 | 1.800 | 0.720 | 13 | 3 | 0 | 0 | 0 | 0 | 0 | 14 | 4 | 2 | 1181 | 4 | Snow fell on 9th, 25th. |
| October | 29.888 | .218 | 30.352 | 29.003 | 1.349 | 56.0 | 41.8 | 48.0 | 70.0 | 3 | 35.0 | 9 | 14.0 | 35.0 | 88 | 1960 | 30 | 44 | 428 | 10 | 40.0 | 75.6 | 11 | 2.832 | 0.750 | 21 | 2 | 9 | 3 | 2 | 1 | 1 | 4 | 1 | 7 | 721 | 5 | A gale occurred on 8th from W. Fog prevailed on 6th and 14th. |
| November | 29.869 | .294 | 30.344 | 29.205 | 1.139 | 60.6 | 44.6 | 52.6 | 79.0 | 21 | 38.0 | 5 | 16.0 | 41.0 | 99 | 2156 | 4 | 56 | 1232 | 5 | 44.4 | 72.3 | 14 | 1.324 | 0.250 | 4 | 0 | 4 | 2 | 1 | 3 | 3 | 3 | 2 | 13 | 118 | 5 | Thunderstorms occurred on 24th, 25th, and 26th. Fog prevailed on 21st, 24th and 26th. |
| December | 30.253 | .311 | 30.284 | 29.340 | 0.944 | 61.3 | 46.2 | 53.7 | 80.0 | 4 | 37.0 | 5 | 15.7 | 43.0 | 100 | 3072 | 22 | 55 | 2832 | 4 | 45.8 | 78.5 | 21 | 1.951 | 0.390 | 20 | 0 | 9 | 1 | 1 | 4 | 1 | 8 | 1 | 5 | 155 | 7 | Lunar halo on 30th. High winds occurred from NW on 3rd, and from W on 20th, 21st, and 22nd. Fog occurred on 12th, 13th, 16th, 17th, 26th, 29th. Gale occurred on 31st from W. Lunar halo seen on 17th. Fog prevailed on 13th. |
| Year | 29.920 | .312 | 30.531 | 29.217 | 1.114 | 63.3 | 46.6 | 54.9 | 75.0 | 22 | 41.0 | 9 | 16.7 | 34.0 | 108 | 1654 | 6 | 49 | 1535 | 21 | 45.8 | 79.2 | 17 | 4.784 | 1.880 | 23 | 13 | 58 | 17 | 10 | 22 | 24 | 102 | 20 | 99 | 162 | 5 | |

Notes.—The barometrical readings are corrected for index error, capillary action, and reduced to 32° 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 degree 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.