1999 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	261.6	263.0	263.7	264.0	264.5	265.0	264.9	264.7	264.5	264.5	265.2	266.9	268.1	268.0	267.4	267.0	267.0	267.1	267.2	267.5	268.0	268.9	269.7	270.1	270.0	269.7	269.4	269.4	269.8	270.5	-9999.0
34	Hudson Bay	264.3	266.3	269.2	269.4	270.1	272.4	274.3	274.5	273.3	272.3	272.4	273.5	276.3	275.2	272.9	271.9	273.3	274.4	274.3	273.5	273.1	272.5	274.1	277.7	278.3	277.8	278.3	277.0	276.8	277.0	-9999.0
36	Hudson Strait	256.6	257.6	257.3	259.0	264.4	264.8	265.8	267.8	268.6	268.2	266.9	266.7	267.4	267.8	271.6	271.1	271.4	270.5	268.8	271.1	271.0	270.4	270.4	268.3	267.7	267.6	267.8	270.6	273.5	271.7	-9999.0
98	Bering Strait	262.9	263.8	261.3	262.6	264.1	263.6	261.5	260.6	263.5	264.8	266.4	265.7	266.0	266.9	267.7	268.5	270.0	271.4	273.3	273.2	272.8	271.6	271.0	269.6	268.8	268.3	268.2	269.8	271.3	272.4	-9999.0
128	Arctic subocean	246.1	247.9	248.8	247.3	245.1	244.0	243.0	243.0	243.1	243.1	244.3	246.7	247.3	248.5	249.1	248.6	249.4	250.7	250.8	251.3	249.5	249.6	249.2	249.7	249.9	251.5	252.8	253.5	253.5	254.2	-9999.0
130	Chukchi Sea	253.3	254.9	254.7	257.9	262.0	261.3	258.3	256.9	259.7	261.3	258.3	257.0	258.5	257.8	260.5	262.2	265.6	264.6	263.4	262.7	262.3	263.8	263.4	262.2	262.3	261.7	262.5	266.6	269.8	271.0	-9999.0
132	Beaufort Sea	263.1	271.0	269.9	268.2	267.6	267.8	268.2	266.7	264.7	264.5	266.8	271.8	270.9	270.2	271.4	274.3	275.1	275.0	275.2	273.7	273.7	274.7	276.2	273.0	272.3	270.0	266.9	267.0	269.8	274.3	-9999.0
134	Arctic Archipelago	246.7	252.4	257.9	255.2	253.2	254.9	256.2	256.0	254.4	253.1	253.5	255.0	259.6	259.9	260.2	261.3	262.5	263.3	259.1	258.9	257.0	257.1	258.9	259.6	257.5	257.7	258.0	257.2	257.3	259.4	-9999.0
136	Foxe Basin	246.2	248.4	250.0	256.0	255.1	252.7	254.7	259.5	260.9	260.4	257.7	263.4	258.0	262.2	265.5	267.1	264.4	264.1	265.1	263.8	263.0	262.6	259.0	258.2	262.2	263.6	263.2	265.8	260.5	255.5	-9999.0
138	Baffin Bay	251.2	248.5	249.0	249.1	246.8	245.1	243.8	243.8	243.8	244.4	245.3	248.4	251.7	250.3	250.4	251.1	249.9	250.7	253.0	254.5	253.3	255.0	256.0	254.2	253.2	255.0	258.1	258.4	255.9	254.0	-9999.0
139	South Greenland	262.8	262.5	262.6	261.2	260.2	259.9	258.2	258.0	254.3	253.6	253.8	254.1	256.3	258.9	257.3	257.0	256.3	256.2	260.2	265.0	265.6	264.3	263.5	262.7	262.7	263.8	264.6	263.5	262.3	259.9	-9999.0
140	Greenland Sea	258.2	253.7	252.8	251.9	248.2	245.6	243.2	242.4	242.1	242.1	242.8	245.0	246.4	247.0	245.9	246.1	246.1	246.6	247.6	252.4	256.5	256.5	257.1	256.2	254.9	253.2	253.4	255.5	253.6	252.3	-9999.0
142	Norwegian Sea	275.9	275.5	273.2	272.2	273.1	275.8	275.4	273.9	275.2	273.5	271.6	270.7	271.2	272.4	274.7	274.5	275.0	273.6	274.9	275.6	276.4	277.4	277.2	277.1	278.2	278.5	277.4	276.8	273.7	273.7	-9999.0
144	Barents Sea	270.1	269.8	268.4	265.1	262.3	262.6	264.4	268.0	269.2	269.9	269.3	268.7	267.4	266.5	269.3	271.3	273.3	275.2	274.2	275.8	278.3	280.2	278.8	276.4	272.5	273.2	274.8	276.6	275.8	274.5	-9999.0
146	Kara Sea	267.2	267.0	267.4	269.1	271.2	271.2	270.1	269.5	270.5	271.2	272.6	273.6	273.4	272.9	270.5	268.4	267.7	267.2	266.9	266.9	268.8	271.3	272.1	273.5	274.2	273.4	272.6	271.9	273.1	274.3	-9999.0
148	Laptev Sea	256.6	259.2	260.7	261.9	263.0	264.8	265.1	263.4	261.9	260.9	261.5	265.7	269.6	269.4	269.1	267.2	264.8	264.1	264.5	264.6	264.5	265.8	266.9	267.6	268.5	269.3	268.3	268.4	268.1	268.7	-9999.0
150	East Siberian Sea	251.3	251.1	251.1	251.1	250.7	251.5	252.8	254.4	254.2	254.4	256.0	256.1	257.0	259.2	259.8	260.4	261.3	260.9	260.4	261.5	261.2	262.3	265.5	266.3	265.0	265.4	265.4	265.1	265.9	266.6	-9999.0
152	Gulf of Alaska	271.6	270.3	268.0	267.3	269.0	269.9	267.1	264.7	267.4	269.8	271.3	271.4	271.0	271.6	272.7	272.7	273.8	276.4	276.3	275.6	274.9	272.7	273.7	273.6	272.5	271.3	271.7	273.3	273.4	274.2	-9999.0
154	Southeast Bering Sea	270.6	264.0	267.8	271.3	272.3	268.6	262.5	266.7	270.6	272.2	271.9	269.0	266.0	266.2	266.3	272.2	275.1	277.1	277.7	277.2	276.0	274.7	274.8	270.8	271.2	272.0	272.3	274.2	275.3	273.9	-9999.0