Jökull - 01.12.1971, Page 10

TABLE 2.
Frequency of wind direction. Probability of a day with precipitation. Probability of a day with
fog. Probability of a day with precipitation for a single wind direction. Total amounts of pre-
cipitation. Mean cloudiness.
1967 Wind frequency (%).
Period N NE E SE S SW W NW Variable direction Total
July 3—31 20.7 3.4 6.9 10.3 13.8 20.7 24.2 100
August 1—18 — — 5.6 16.7 11.1 33.3 22.2 — 11.1 100
Observation period 12.8 2.1 2.1 10.6 10.6 21.3 8.5 12.8 19.2 100
1967 Probability of a day with precipitation (%).
Period N NE E SE S SW W NW Variable direction Total
July 3-31 17.2 3.4 3.4 3.4 17.2 17.2 61.8
August 1—18 - — 0 5.6 11.1 22.2 11.1 — 0 50.0
Observation period 10.6 - 0 4.3 6.4 10.6 4.3 16.0 10.6 57.4
1967 Probability of a day with fog (%).
Period N NE E SE S SW W NW Variable direction Total
July 3—31 10.3 3.4 3.4 0 10.3 17.2 44.6
August 1—18 - - 0 0 5.6 5.6 0 — 0 11.2
Observation period 6.4 - 0 2.1 4.3 2.1 0 6.4 10.6 31.9
1967 Probability of precipitation for single wincl direction.
Period N NE E SE s SW W NW Variable direction
July 3-31 83 50 30 25 _ 83 71
August 1—18 — — 0 33 100 67 50 — 0
Observation period 83 - - 40 60 50 50 83 71
6 JÖKULL 21. ÁR