8 H. MØLHOLM HANSEN 
TABLE 1. Climatic Conditions in Iceland. 
I. Berufjordur, East Iceland (64° 40’ N., 14° 15‘W., 18 m above sea level). 
II. The Vestmannaeyjar, South Iceland (63° 26° N., 20° 18’ W., 8 m above 
sea level). 
III. Stykkishölmur, West Iceland (65° 5‘ N., 22° 46’ W., 11 m above sea level). 
IV. Grimsey, North Iceland (66° 34‘ N., 18° 3‘ W., 2.5 m about sea level). 
V. Möörudalur, Highland Tracts (65° 19’ N., 15° 15’ W., about 480 m above 
sea level). 
The table has been compiled after Thoroddsen (the lowland stations), 
Thorkelsson (the preeipitation values for all stations), and Meteorolo- 
gisk Aarbog Part II, 1886—1916 (the highland station). The lowland 
stations comprise the years 1872—1906, the precipitation values cover 
an additional number of years. 
I 
II. 
7 > = - “| S| 5 $ 
Eu = 3 = = |» | aD Ta ' 
She) oe] Ba) "1 ee | 2 |? 2 Se 
Mean temperature of | > = = 
surface water in de- | | 
Press ESSEN FESTER 3.21 0.7| 0.4) 0.5|1.5|3.1/|4.3| 6.0| 6.6| 6.2| 4.3) 2:6) 13 
Mean temperature of | | 
Te ee Va 2.8 —1.2 + 1.5 +1.7 | 1.0 | 3.7 | 6.8 8.5 8.3 | 6.6 | 3.3| 1.1 +1.0 
Mean precipitation in | | | 
TE mere 1174| 128| 991 77| 83! 73| 67! 64| 82 | 126 ! 124 | 113 | 139 
Number of days with | | | 
precipitation’. 2. .....- 146) 15| 14) 12| 11] 10) 9| 10| 10| 13] 13) 14| 15 
Number of days with | | | | | 
SHON SEE ee ee 50 Silt wens ONE BI 23:04 » | 0.1| 0.5 3 6 7 
Number of days with | Rec | 
FODS een lets 1711 11) Ag) 11|.14| 17 | 19) 21) 18] 16) oe 
Number of days with | | | 
FOSS SEE, | 158] 24| 22] 25| 18| 10] 2| »| 03] 2| 13} 18] 24 
Number of days with | 
SACS rr eters) ests 8 1 1 1" 11'0.4.10.1|:0.2] 020.4) 4 1 1 
| | 
Mean temperature of | | | | 
surface water in de- | | | | 
Pres SEER 6.9| 4.1) 4.1! 4.5|6.1|7.7|9.5 110.9 10.8 | 9.1| 6.8 | 5.1| 41 
Mean temperature of | | | 
A er ata corey 5.1) 1.3) 1.3) 1.4 4.0 | 6.3 | 9.0 110.6 10.2 | 8.2| 5.1) 3.0! 12 
Mean preeipitation in | | | | 
RI ee 1354 | 150 | 123 | 118 | 94 | 80| 80| 77| 76 | 139 | 144 | 135 | 138 
Number of days with | | | 
precipitation ........ 207| 21| 18 pe | 17/ 15| 15| 15] 14] 18 | 19] 19] 19 
Number of days with | | | 
SNOW 27 EL TER 44); 9) 8 8| 4| 1102 » >| 0.3| 21 4 8 
Number of days with | | Kt: 
1062: bi, Tos ee eee | 49 2 2 2 | 3| 5| 8 8 6 2 <4 2 2 
Number of days with | | | | 
MORE Re 1091 20) 18! 17) 10) 3/0.1 >| 0.4) 1| "8 a3) 238 
Number of days with | | | | 
TA: SARA AT 251 Bile oa 3 2) 1105103103|. 2| Bae 
i | | 
