Veðráttan - 02.12.1972, Side 13

1972
VEÐRÁTTAN
Ársyfirlit
Jíiðar. Hiti. Temperature Hakastig %. Rel. humidity %
Kl. Hour 3 6 9 12 15 18 21 24 Mðlt. Mean 3 6 9 12 15 18 21 24 Mðlt. Mean
I 1.7 1.6 1.6 1.9 1.7 1.8 1.6 1.7 1.7
II 1.2 1.1 1.1 1.7 2.0 1.5 1.2 1.4 1.4 — —
III 0.5 0.4 0.8 1.8 2.3 1.6 1.1 0.8 1.2
IV 1.0 0.8 2.3 3.5 4.3 3.4 2.0 1.2 2.3
V 4.9 5.1 7.2 8.7 9.3 8.8 7.3 6.0 7.1 — — 77 80
VI 5.9 6.0 8.9 10.4 11.4 10.9 9.1 7.3 8.7 — — 76 — — 81
VII 8.0 7.9 9.5 10.8 11.7 11.7 9.8 8.5 9.7 — — 85 — 86
VIII 6.9 6.4 8.4 10.5 11.3 11.1 9.1 7.8 8.9 81 82
IX 6.3 5.8 6.9 8.4 9.5 8.8 7.0 6.5 7.4 — — 91 91
X 2.6 2.3 2.6 3.9 4.5 3.6 2.7 2.7 3.1 — — 90 — 90
XI -1.6 -1.6 -1.5 -1.2 -0.8 -1.5 -1.5 -1.5 -1.4
XII 0.2 0.4 0.6 0.7 0.7 0.6 0.6 0.5 0.5
Ár Year 3.1 3.0 4.0 5.1 5.6 5.2 4.2 3.6 4.2
Hiti. Temperature Bakastig %. Rel. humidity %
Kl. Hour 3 6 9 12 15 18 21 24 Mðlt. Mean 3 6 9 12 15 18 21 24 Mðlt. Mean
I 1.9 1.8 1.9 1.9 2.1 1.6 1.9 1.8 1.8
II 1.3 1.3 1.5 1.9 2.5 1.8 1.4 1.7 1.7
III 0.7 0.7 0.7 1.9 2.5 1.9 1.2 1.1 1.3
IV 1.5 1.2 2.4 4.2 4.9 4.2 2.9 1.9 2.9
V 6.2 5.9 7.4 9.4 9.6 8.9 7.8 6.9 7.8
VI 6.5 6.5 9.1 10.6 11.1 10.6 9.8 8.1 9.0
VII 8.5 8.2 9.4 10.9 11.4 11.1 10.4 9.0 9.9
VIII 7.1 6.7 8.5 10.3 11.0 10.8 9.1 8.0 8.9
IX 6.4 6.0 6.9 8.6 9.4 8.9 7.7 6.7 7.6
X 3.0 2.5 2.7 4.1 4.7 3.8 3.4 3.1 3.4
XI -1.1 -1.2 -1.2 -1.0 -0.8 -1.1 -1.6 -1.1 -1.1
XII 0.4 0.6 0.7 0.6 0.9 0.4 0.4 0.2 0.5
Ár Year 3.5 3.3 4.2 5.3 5.8 5.2 4.5 4.0 4.5 — — —
Keflavík. Hiti. Temperature Rakastig %. Rel. humidity %
Kl. Hour 3 6 9 12 15 18 21 24 Mðlt. Mean 3 6 9 12 15 18 21 24 Mðlt. Mean
I 2.9 2.8 2.7 2.9 3.1 2.9 2.8 2.8 2.9 88 86 85 85 84 86 87 89 86
II 2.3 2.3 2.2 2.5 3.2 2.5 2.4 2.5 2.5 88 87 ,87 86 85 88 87 88 87
III 1.6 1.6 1.8 2.7 3.0 2.9 1.8 1.8 2.1 81 84 83 81 78 77 81 80 80
IV 2.2 2.2 3.4 4.3 4.8 4.3 3.2 2.5 3.3 87 90 S3 83 79 80 87 89 85
V 5.9 6.0 7.4 8.5 9.0 8.6 7.5 6.6 7.4 84 84 77 73 71 75 79 84 78
VI 6.6 7.1 8.4 9.7 10.2 9.9 8.9 7.4 8.5 85 84 77 73 69 72 77 84 77
VII 8.6 8.7 9.5 10.4 10.7 10.5 9.6 8.8 9.6 90 91 87 82 81 80 85 89 85
VIII 7.9 7.9 8.9 9.9 10.5 10.5 9.4 8.4 9.2 86 85 81 74 74 75 83 86 80
IX 7.1 7.1 7.7 8.7 9.0 8.7 7.7 7.2 7.9 92 89 87 83 80 84 88 90 87
X 4.4 4.5 4.4 5.4 5.6 5.0 4.5 4.3 4.8 84 83 85 79 80 84 86 86 83
XI 0.4 0.4 0.6 0.8 1.1 0.7 0.7 0.6 0.7 82 81 78 80 77 82 84 82 81
XII 1.4 1.5 1.7 1.6 1.7 1.4 1.0 1.0 1.4 82 84 83 83 82 83 85 83 83
Ár Year 4.3 4.3 4.9 5.6 6.0 5.6 5.0 4.5 5.0 86 86 83 80 78 80 84 86 83
Meðalrakastig á hverjum athugunartíma er reiknað með fcví að taka hlutfallið milll meðalraka-
þrýstings og mettunarþrýstings við meðalhitastig athugunartimans. Rakastig mánaðarins er á sama
hátt miðað við hlutfall milli meðalrakaþrýstings í mánuðinum og mettunarþrýstings við meðalhita
mánaðarins. Ársmeðaltöl eru beln meðaltöl af rakastigum mánaðanna.
Relative humidity at fixed hours and mean monthly values are computed according to the for-
mula Ú = e/em ■ 100 where e and em stand for mean vapour pressure and saturation vapour pres-
sure at the respective mean temperature. Tlie yearly mean is arithmetic mean of the monthly values
for relative humidity.
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