1980 04 - daily  - mean of ECMWF ERA-40 daily air temperature at 2m (k); A.P.Barrett, CU
BasinID	Name	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
0	Pan Arctic	259.6	259.1	259.0	259.0	258.8	258.9	260.5	261.8	262.6	263.0	263.6	264.8	265.4	265.4	265.5	265.3	265.5	266.3	267.5	268.4	268.7	269.1	269.9	270.0	270.3	270.9	271.4	271.4	271.3	271.1	-9999.0
34	Hudson Bay	269.8	269.3	268.3	268.9	266.6	263.3	264.3	265.5	268.0	269.5	269.8	271.0	273.1	273.7	269.4	269.6	272.9	275.8	276.6	277.7	279.0	276.9	275.6	278.0	279.1	279.8	280.6	283.0	284.7	284.8	-9999.0
36	Hudson Strait	264.0	263.3	264.5	257.2	261.5	258.8	254.0	255.3	256.0	258.4	262.8	265.4	263.8	267.8	267.4	256.4	256.4	262.0	257.9	263.6	264.9	269.1	272.6	270.4	273.5	269.9	267.8	270.5	271.9	269.6	-9999.0
98	Bering Strait	267.4	268.0	267.9	267.4	266.1	264.9	264.7	265.3	265.2	264.9	265.0	265.5	265.6	267.1	266.6	265.6	265.6	266.2	267.4	266.5	267.7	269.2	269.2	269.1	270.2	272.3	272.3	272.0	272.2	271.9	-9999.0
128	Arctic subocean	239.2	239.3	238.9	239.7	242.5	245.9	247.2	246.5	245.5	245.5	244.9	243.5	242.6	243.8	247.4	249.6	249.4	248.6	247.1	246.9	247.3	247.2	247.7	248.4	249.2	249.1	249.5	252.4	254.6	255.1	-9999.0
130	Chukchi Sea	260.9	262.4	261.9	262.6	260.1	256.7	254.5	254.2	255.3	255.0	255.1	255.1	255.5	259.2	260.4	260.2	260.0	259.7	260.0	260.4	262.2	262.1	263.4	265.0	264.9	265.5	266.5	266.6	266.9	265.5	-9999.0
132	Beaufort Sea	268.2	268.8	270.8	267.2	262.4	261.2	264.1	267.1	266.6	267.2	268.6	272.2	273.4	269.2	272.6	272.2	274.0	273.4	274.1	273.3	270.9	273.0	276.9	275.1	276.2	277.9	280.5	279.9	279.8	277.0	-9999.0
134	Arctic Archipelago	251.8	247.6	246.4	245.3	245.2	246.1	248.9	250.6	250.7	248.9	249.5	252.8	252.9	248.0	248.4	250.3	252.3	254.2	254.2	256.4	257.0	254.4	255.4	256.0	256.5	260.7	260.5	260.6	262.0	263.7	-9999.0
136	Foxe Basin	257.7	258.5	254.1	248.9	246.2	253.9	260.1	257.8	256.3	255.7	252.2	247.1	248.1	249.6	247.8	246.5	248.7	251.8	251.3	251.2	256.2	263.9	260.7	259.2	260.0	258.8	261.4	257.7	256.8	258.3	-9999.0
138	Baffin Bay	242.6	243.8	245.0	246.8	247.9	249.4	251.1	253.8	251.1	248.8	245.6	242.9	242.6	243.1	243.7	246.3	243.8	243.0	245.6	246.4	244.1	246.7	251.0	251.8	250.2	249.1	250.5	250.2	249.9	250.3	-9999.0
139	South Greenland	251.8	250.9	253.8	254.9	256.7	255.1	259.3	257.7	254.7	252.3	251.7	250.6	250.8	251.2	253.5	256.9	254.6	253.0	259.0	259.5	253.5	253.9	258.6	259.5	254.8	255.6	256.4	255.5	256.1	256.1	-9999.0
140	Greenland Sea	238.8	239.1	239.0	240.5	242.3	245.2	246.8	247.4	245.8	245.2	244.1	242.9	242.7	246.2	247.9	248.5	246.5	244.9	245.7	249.4	246.1	245.2	248.3	248.9	248.8	248.6	251.2	256.1	255.8	256.8	-9999.0
142	Norwegian Sea	271.3	273.4	273.5	272.4	274.9	276.2	274.3	272.6	270.5	271.8	272.9	274.9	275.6	276.3	276.8	276.6	276.0	274.0	272.4	273.4	274.0	275.1	276.7	273.0	273.6	275.9	278.0	277.7	277.6	277.0	-9999.0
144	Barents Sea	263.3	263.7	265.5	267.5	268.3	269.2	270.8	271.7	271.6	270.5	270.4	270.8	270.1	267.6	266.5	267.7	271.4	274.1	273.9	274.6	276.6	276.7	276.9	279.1	278.8	276.9	275.5	272.1	271.3	271.0	-9999.0
146	Kara Sea	261.7	259.4	257.5	258.0	259.7	261.5	263.5	265.7	267.5	268.2	269.1	270.2	271.2	272.5	272.9	271.3	269.3	269.7	271.4	272.8	274.4	275.5	276.4	275.8	275.7	275.6	275.8	274.7	273.1	271.7	-9999.0
148	Laptev Sea	251.8	253.2	253.7	254.0	253.2	253.2	254.5	255.8	257.5	259.2	260.7	263.1	262.9	262.7	263.4	264.5	265.3	266.2	267.6	267.9	267.5	267.6	267.0	267.2	268.4	269.0	269.1	269.3	269.6	271.1	-9999.0
150	East Siberian Sea	246.8	247.4	249.3	250.1	250.5	252.4	253.2	253.2	252.8	253.2	255.0	257.1	256.4	257.5	258.1	256.4	256.1	256.0	256.3	258.8	259.9	259.2	258.1	256.5	257.7	259.6	260.7	261.9	262.0	263.7	-9999.0
152	Gulf of Alaska	273.9	274.1	273.9	274.1	273.8	273.7	273.3	273.5	273.0	273.3	274.2	273.8	272.5	271.8	271.2	271.9	272.1	272.9	273.8	273.9	273.5	273.2	272.7	272.4	274.7	276.3	274.8	275.5	274.7	274.9	-9999.0
154	Southeast Bering Sea	274.6	273.6	275.2	275.6	274.6	273.6	273.6	274.0	274.6	274.5	272.4	270.6	273.1	272.4	271.2	271.7	272.7	273.7	273.0	271.0	274.4	274.6	274.2	274.1	274.8	277.0	277.7	278.1	277.3	277.5	-9999.0