Ársmeğaltöl fyrir stöğ 340 - Hjaltabakki
stöğ	 ár	  t	  tx	  txx	txxD1	  tn	 tnn	tnnD1	 rh	 r	 rx	rxD1	 p	 n	sun	 f
340	1968	  1.9	  5.4	 18.5	30-05	 -1.3	-19.6	01-04	NA	337.8	 20.4	05-03	1011.0	5.9	NA	 4.3
340	1969	  1.1	  4.7	 20.0	31-07	 -1.9	-24.3	10-03	NA	503.7	 18.6	05-03	1008.8	6.2	NA	 4.6
340	1970	  2.0	  5.2	 17.7	22-06	 -0.9	-20.9	08-01	NA	444.9	 19.5	09-10	1008.2	6.2	NA	 5.0
340	1971	  2.2	  5.4	 18.0	04-06	 -0.9	-20.9	30-01	NA	531.1	 21.1	13-07	1007.2	NA	NA	NA
340	1972	  3.8	  6.8	 18.1	28-08	  1.0	-14.4	15-02	NA	526.7	 21.3	24-09	1003.8	6.4	NA	 4.9
340	1973	  2.1	  5.3	 19.2	11-07	 -0.9	-17.0	18-11	NA	472.3	 15.4	31-10	1007.6	6.4	NA	 4.6
340	1974	  3.5	  6.6	 23.0	23-06	  0.6	-18.6	22-12	NA	435.2	 20.3	31-03	1003.8	6.2	NA	 4.2
340	1975	  2.3	  5.8	 19.0	25-05	 -0.6	-16.5	17-01	NA	552.2	 26.2	02-01	1006.8	6.2	NA	 4.4
340	1976	  3.3	  6.6	 19.0	06-07	  0.5	-19.5	12-01	NA	502.6	 17.3	17-02	1004.9	6.3	NA	 4.2
340	1977	  2.4	  5.7	 20.5	11-08	 -0.3	-21.0	19-12	NA	379.4	 18.0	28-08	1008.9	6.0	NA	 3.8
340	1978	  2.6	NA	NA	NA-NA	NA	NA	NA-NA	NA	427.6	 17.2	29-05	1006.7	6.1	NA	 3.9
340	1979	  1.0	  4.2	 17.0	13-08	 -1.9	-21.8	07-02	NA	334.3	 17.8	20-04	1006.5	6.0	NA	 4.2
340	1980	  2.8	NA	NA	NA-NA	NA	-17.0	19-12	NA	NA	NA	NA-NA	NA	6.1	NA	 4.3