1981 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	263.8	263.3	263.1	262.2	261.8	262.2	262.9	263.1	263.2	263.1	263.0	262.9	263.1	264.1	265.6	266.8	267.4	267.8	268.2	268.4	268.8	269.3	270.5	271.1	271.0	270.8	270.5	270.1	269.7	270.1	-9999.0
34	Hudson Bay	268.0	268.0	267.0	266.1	267.0	269.6	268.7	268.9	268.6	268.2	267.1	267.4	266.6	264.1	265.6	269.5	267.1	265.7	266.0	266.6	269.1	270.6	272.4	273.9	274.8	275.6	276.2	275.8	275.0	274.6	-9999.0
36	Hudson Strait	255.4	262.4	258.7	257.2	254.2	258.3	262.0	261.2	262.2	263.9	263.7	263.0	263.1	269.1	257.0	252.0	255.0	253.6	258.0	260.0	260.7	267.9	273.7	272.9	272.5	270.4	270.1	270.4	271.6	272.1	-9999.0
98	Bering Strait	265.4	266.9	265.5	264.2	263.9	263.1	266.2	265.3	265.0	265.0	266.2	266.4	265.3	263.8	263.9	264.4	264.6	265.8	268.8	269.5	271.0	271.0	271.1	271.4	272.2	272.6	272.7	273.0	273.5	274.1	-9999.0
128	Arctic subocean	242.9	245.0	244.3	244.1	242.4	241.1	241.4	242.9	245.4	243.5	243.1	244.2	246.5	247.1	246.0	247.0	247.4	250.0	255.3	254.0	254.1	254.9	256.8	253.9	253.6	254.4	255.2	255.6	255.8	256.8	-9999.0
130	Chukchi Sea	262.5	264.6	263.0	261.0	258.1	258.2	260.2	261.8	259.6	263.0	267.5	267.1	266.0	263.9	262.3	262.7	262.5	263.5	264.0	264.2	263.4	263.5	262.8	262.8	264.3	266.1	266.2	269.5	270.8	271.9	-9999.0
132	Beaufort Sea	265.9	267.0	267.7	267.5	268.3	267.5	265.8	265.0	264.3	262.0	259.4	257.3	257.0	259.0	261.5	261.7	262.7	263.2	267.0	272.8	273.3	272.0	273.2	274.1	273.1	272.7	273.2	274.3	274.7	275.7	-9999.0
134	Arctic Archipelago	247.4	246.5	247.9	249.2	250.2	251.0	250.4	251.4	252.2	251.1	248.5	246.3	246.0	248.4	248.9	248.5	249.6	252.0	253.8	255.7	255.9	256.3	258.6	261.6	264.5	264.8	264.2	263.9	264.2	265.8	-9999.0
136	Foxe Basin	245.6	244.7	248.7	250.1	250.2	250.7	251.8	249.8	249.2	251.2	253.5	256.3	254.6	251.9	251.8	251.5	251.9	251.0	251.3	253.9	260.4	262.9	266.3	269.6	270.1	268.2	266.5	264.8	264.5	265.1	-9999.0
138	Baffin Bay	245.5	246.6	245.6	243.9	244.3	242.6	241.2	240.1	240.6	239.1	238.5	239.5	240.9	244.1	251.1	252.3	255.8	257.1	252.5	249.3	252.5	259.0	259.6	256.8	254.6	253.4	252.9	253.6	254.9	256.8	-9999.0
139	South Greenland	252.9	253.0	255.6	258.9	259.4	255.5	253.1	251.3	251.0	248.9	248.2	250.1	252.0	255.4	262.3	262.3	263.4	263.5	260.1	262.7	265.0	264.7	263.3	262.8	262.6	262.0	263.3	262.2	261.2	260.9	-9999.0
140	Greenland Sea	245.9	245.4	248.1	246.4	246.4	244.6	244.6	245.5	245.7	243.2	243.2	243.8	242.3	242.8	251.8	253.1	253.8	257.4	254.2	250.2	249.7	252.9	257.4	255.2	251.0	248.7	248.3	248.9	249.3	250.7	-9999.0
142	Norwegian Sea	275.3	276.0	275.7	274.4	274.4	274.7	275.5	274.6	274.7	277.2	275.9	275.2	273.1	274.2	273.5	272.9	274.3	273.9	273.7	273.1	268.7	268.1	268.6	268.9	269.3	270.1	269.8	269.5	269.8	272.0	-9999.0
144	Barents Sea	267.3	269.4	272.2	268.5	266.6	270.2	270.3	265.6	261.7	263.1	268.1	267.1	267.1	268.0	265.9	265.7	266.5	269.5	270.2	270.5	269.7	269.4	267.8	266.2	266.3	267.8	267.9	269.9	273.4	274.5	-9999.0
146	Kara Sea	268.8	267.1	265.8	265.0	265.1	265.9	268.6	271.3	272.5	272.6	272.1	272.0	271.9	272.3	273.3	274.6	275.0	274.9	275.9	275.0	274.4	274.5	276.5	277.1	276.1	274.7	273.3	273.0	272.2	272.9	-9999.0
148	Laptev Sea	266.2	264.0	263.3	260.7	257.1	256.7	258.1	258.9	260.1	261.5	262.2	262.4	263.4	266.2	268.7	271.0	273.0	273.3	271.2	269.2	269.4	269.5	270.1	272.0	272.3	272.6	273.0	268.8	266.0	266.1	-9999.0
150	East Siberian Sea	259.5	257.7	258.8	259.6	260.0	259.8	258.2	254.0	252.3	252.2	254.0	255.1	256.9	262.3	264.7	265.6	265.5	266.5	267.1	266.6	265.1	264.1	264.6	265.1	265.9	265.9	265.3	267.8	268.0	265.1	-9999.0
152	Gulf of Alaska	270.1	270.7	269.7	268.9	268.7	268.0	269.2	269.7	269.1	267.2	266.4	266.9	268.7	268.1	267.6	268.1	269.1	270.8	273.1	273.9	274.1	274.3	274.1	273.8	274.1	273.9	274.2	275.2	275.2	276.2	-9999.0
154	Southeast Bering Sea	272.9	272.6	272.0	271.0	270.3	272.4	273.4	272.4	273.3	273.5	274.4	274.1	273.4	270.6	269.0	270.1	272.7	275.3	276.7	276.6	277.1	276.4	275.9	274.4	275.9	276.8	276.3	276.6	276.2	277.7	-9999.0