Giskað á meðalhita einstakra mánaða 1816:

STOD	JAN	FEB	MAR	APR	MAI	JUN	JUL	AGU	SEP	OKT	NOV	DES	AR	NAFN
1	-3.7	-2.7	-1.1	1.6	6.8	9.8	9.7	9.4	6.0	4.5	-2.3	-1.4	3.05	Reykjavík
178	-5.0	-4.6	-3.1	-0.6	5.8	8.9	8.9	8.8	5.3	4.0	-2.1	-1.6	2.06	Stykkishólmur