Page:Palestine Exploration Fund - Quarterly Statement for 1894.djvu/64

44 Also from the table it appears that in June rain fell on one day in the years 1885 and 1888, and that in August it fell on one day in the year 1890.

From the numbers in the last column of Table III (see p. 39), showing the average number of days of rain, it appears that January has the greatest number, 12, and the next in order are February and December, each 10, then in order March, 8, November, 6, April, 5, and May and October 2 each.

The sum at the foot of each column shows the number of days of rain in that year; the numbers vary from 36 in the year 1864 to 73 in the year 1890. By taking the means of the first half, viz., from 1861 to 1876, the average value is 52, and of the second half, viz., from 1877 to 1892, the average value is 58. The mean number of days for the whole period is 55.

November, 1893.



numbers in column 1 of this table show the highest reading of the barometer in each month; of these the highest appear in the winter, and the lowest in the summer months; the maximum for the year is 27·668 inches in January. In column 2 the lowest in each month are shown; the minimum is 26·997 inches in April. The range of readings in the year was 0·671 inch. The numbers in the 3rd column show the extreme range of readings in each month; the smallest, 0·144 inch, is in August, and the largest, 0·531 inch, in January. The numbers in the 4th column show the mean monthly pressure of the atmosphere; the highest, 27·486 inches, is in December, and the lowest, 27·285 inches, in July. The mean pressure for the year was 27·380 inches; at Sarona the mean pressure for the year was 29·859 inches.

The highest temperature of the air in each month is shown in column 5. The highest in the year was 105° on both the 6th and 9th of August; at Sarona the maximum temperature on these days was 88° and 89° respectively. The first day in the year the temperature reached 90° was on May 29th, and the temperature reached or exceeded 90° on two other days in this month. In June there were 8 days when the temperature reached or exceeded 90°; in July, on 7 days; in August, on 10 days; in September, on 1 day; and in October, on 4 days. Therefore the temperature reached or exceeded 90° on 33 days in the year. At Sarona the temperature reached 90° as early as April 13th, and reached or exceeded 90­­­° on only 14 days in the year; the highest in the year at Sarona,