1998 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	263.1	264.1	265.0	265.5	265.3	265.0	265.1	265.3	265.8	266.4	267.1	267.5	267.2	267.2	267.5	267.8	267.5	267.0	267.2	267.7	268.1	268.4	268.9	268.9	268.6	268.8	269.6	270.3	270.3	270.3	-9999.0
34	Hudson Bay	271.2	271.2	272.6	272.9	271.9	270.1	269.7	269.7	270.4	271.1	272.5	275.2	274.9	273.0	272.1	272.2	272.3	271.9	273.1	274.8	276.9	278.6	278.2	275.6	274.3	275.6	278.5	280.8	280.7	278.7	-9999.0
36	Hudson Strait	258.4	259.0	263.6	264.8	264.6	266.5	268.2	267.1	263.8	261.2	261.1	263.4	268.6	274.6	273.6	271.7	270.9	270.2	268.1	266.3	266.3	265.8	266.2	267.5	267.5	265.9	267.4	271.3	273.5	269.9	-9999.0
98	Bering Strait	263.6	264.7	265.9	268.2	267.4	267.7	268.6	268.5	268.7	270.2	270.2	270.3	269.9	270.3	271.3	270.6	270.9	272.1	271.7	271.2	270.8	271.5	272.6	273.6	272.4	269.9	269.9	270.0	268.6	268.8	-9999.0
128	Arctic subocean	247.9	250.2	248.7	246.0	249.0	250.0	250.3	249.4	249.5	249.7	251.1	252.3	252.7	252.6	253.2	252.8	251.5	251.9	251.1	253.9	255.9	256.2	257.3	255.8	255.1	255.1	256.3	257.7	255.6	256.0	-9999.0
130	Chukchi Sea	260.3	261.3	264.4	266.3	265.1	263.7	264.8	264.8	265.5	270.2	270.8	269.7	267.8	267.1	267.3	266.6	266.2	265.3	265.7	265.5	266.4	268.1	269.1	268.8	267.2	266.0	268.5	265.4	262.3	261.4	-9999.0
132	Beaufort Sea	267.9	269.2	271.0	271.6	271.5	272.8	273.9	272.9	271.6	270.4	270.4	270.4	270.2	272.0	274.8	276.5	277.2	277.4	278.2	276.9	276.3	275.9	276.2	275.8	273.8	272.3	273.3	275.4	277.5	276.9	-9999.0
134	Arctic Archipelago	250.8	251.8	253.5	254.8	254.7	255.4	254.9	254.2	256.4	258.5	260.0	259.4	258.7	259.9	260.1	261.6	263.6	263.8	264.7	264.1	263.9	264.2	263.4	264.1	265.2	265.3	264.4	263.1	262.1	262.9	-9999.0
136	Foxe Basin	251.8	251.1	252.1	252.6	253.4	258.2	260.9	262.4	261.9	258.3	256.8	256.8	260.9	260.3	256.3	255.9	256.0	257.6	256.9	257.7	257.2	256.6	257.2	258.1	259.2	261.1	266.0	268.8	266.8	266.9	-9999.0
138	Baffin Bay	252.9	256.9	253.0	249.8	248.9	247.4	249.0	252.6	257.3	258.4	260.6	261.6	260.7	258.7	255.5	250.3	248.6	248.3	250.4	253.3	254.9	254.7	255.5	255.9	255.8	256.0	254.7	254.0	256.2	259.4	-9999.0
139	South Greenland	261.1	262.5	261.1	259.4	257.9	256.8	256.1	259.1	262.5	263.3	264.3	265.4	266.2	264.7	263.4	261.6	256.5	255.8	259.9	261.7	261.0	260.8	261.3	261.6	260.7	261.1	260.7	259.7	260.8	263.1	-9999.0
140	Greenland Sea	252.9	258.9	258.9	252.2	249.8	247.6	249.3	248.7	250.5	250.2	250.0	253.2	255.6	256.0	254.7	251.0	248.7	249.0	252.5	255.1	254.3	254.1	254.9	253.7	253.0	252.6	252.4	251.7	251.9	255.1	-9999.0
142	Norwegian Sea	269.3	269.4	268.9	270.5	270.6	269.7	268.8	267.2	266.8	266.2	267.2	268.0	268.2	269.6	270.4	272.1	274.4	274.2	273.9	274.1	275.2	276.5	277.9	278.4	278.7	278.1	277.6	276.8	276.6	277.2	-9999.0
144	Barents Sea	257.8	258.6	260.8	262.6	266.2	267.7	266.2	266.0	265.1	264.4	264.0	262.5	262.9	262.8	263.0	263.8	264.0	263.2	267.5	272.1	273.9	273.1	273.2	273.6	273.3	273.3	274.5	272.3	268.5	268.7	-9999.0
146	Kara Sea	267.9	269.6	269.1	267.9	267.3	268.3	268.5	268.4	269.3	271.0	271.3	270.7	268.8	268.7	269.5	270.6	269.4	268.1	266.5	266.7	267.5	268.1	269.2	269.4	269.9	270.6	271.6	273.7	274.3	273.9	-9999.0
148	Laptev Sea	258.8	259.4	262.2	266.8	266.8	263.0	263.3	263.9	263.0	263.2	265.1	265.5	266.0	265.9	266.3	267.3	267.9	266.6	266.3	266.2	265.7	265.4	265.7	266.2	266.1	266.3	266.8	266.1	266.7	267.6	-9999.0
150	East Siberian Sea	252.1	250.5	251.6	253.4	254.2	255.7	255.6	255.1	255.9	256.5	256.6	257.0	257.5	258.6	258.8	259.2	260.9	261.2	260.2	259.5	259.3	258.3	259.0	260.8	262.2	262.7	261.9	261.7	259.9	258.7	-9999.0
152	Gulf of Alaska	270.5	270.3	271.0	272.2	271.8	272.8	272.1	271.7	271.7	271.6	271.4	271.2	271.6	272.2	273.5	274.1	274.6	274.9	274.1	273.2	273.5	273.5	273.9	274.5	275.4	274.4	274.9	273.0	272.4	273.8	-9999.0
154	Southeast Bering Sea	271.2	270.6	274.4	272.6	271.8	269.9	269.1	270.4	273.8	274.7	272.6	272.6	275.1	275.8	275.0	274.7	276.3	276.6	275.8	274.4	274.6	274.6	276.7	277.5	278.6	278.1	277.5	271.6	270.2	272.6	-9999.0