1973 04 - daily  - mean of NCEP mean Daily Air temperature at 2 m, degK.
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	261.1	260.6	260.2	260.6	260.6	260.6	261.1	261.9	262.8	263.3	263.3	263.4	263.0	263.4	264.4	264.4	264.5	265.0	264.5	264.2	264.4	264.4	264.3	264.9	265.6	266.3	266.6	266.9	267.6	268.5	-9999.0
34	Hudson Bay	267.6	266.9	265.7	265.2	264.3	262.1	259.2	259.2	261.5	264.8	265.0	265.8	267.4	267.6	266.7	266.1	267.8	269.0	269.4	269.9	271.3	271.0	269.3	268.4	268.3	268.9	269.5	269.6	269.4	270.1	-9999.0
36	Hudson Strait	258.6	258.4	257.9	261.6	262.4	266.5	265.2	262.0	260.9	260.6	259.5	262.3	257.1	261.7	261.6	261.1	260.1	264.5	263.0	261.5	261.1	261.1	266.6	270.8	272.7	272.9	270.7	271.7	276.7	273.2	-9999.0
98	Bering Strait	260.1	259.6	262.7	262.7	263.6	265.7	267.3	267.4	268.5	265.4	263.9	264.4	265.4	265.9	265.9	263.5	262.5	262.7	262.9	265.4	267.8	265.8	263.6	263.9	263.9	265.3	264.9	264.1	264.9	267.1	-9999.0
128	Arctic subocean	242.0	242.7	241.6	243.3	244.8	244.9	241.7	242.7	243.2	244.7	246.1	248.0	248.4	249.5	251.3	247.6	248.7	246.4	246.1	245.8	246.2	249.0	247.8	248.7	248.2	249.7	250.3	251.4	254.8	258.7	-9999.0
130	Chukchi Sea	257.7	255.2	253.8	258.7	264.0	266.9	268.1	265.1	263.1	261.4	257.9	259.9	262.0	261.3	258.6	257.0	254.6	254.1	256.0	259.5	261.0	259.7	256.9	256.2	255.9	255.7	255.8	257.4	257.7	260.2	-9999.0
132	Beaufort Sea	265.0	265.3	266.7	267.1	263.1	260.7	263.2	267.1	269.7	269.6	269.1	267.6	265.5	263.9	265.4	265.1	263.5	264.0	265.6	266.4	268.1	268.3	267.1	266.0	266.8	269.7	271.8	270.6	270.1	272.2	-9999.0
134	Arctic Archipelago	245.8	248.8	251.4	251.9	249.3	248.5	250.3	250.3	252.3	252.1	252.7	254.0	252.1	252.8	252.7	251.6	252.0	251.2	252.2	254.9	257.4	257.5	257.4	256.1	255.2	255.9	257.8	259.4	262.1	263.6	-9999.0
136	Foxe Basin	245.0	244.9	248.4	249.5	248.3	246.2	246.6	249.9	252.8	257.5	259.9	257.7	255.4	255.1	253.9	253.5	252.2	254.0	257.1	254.5	252.9	257.3	258.3	259.6	260.4	262.6	265.8	268.3	267.0	269.2	-9999.0
138	Baffin Bay	239.8	239.3	239.4	240.3	240.2	241.5	243.8	243.0	245.3	252.0	252.6	252.4	252.7	255.6	255.9	253.6	252.4	252.4	248.6	246.6	248.4	247.5	247.8	250.6	250.2	247.1	248.4	255.5	258.9	257.5	-9999.0
139	South Greenland	247.7	245.4	246.9	248.0	248.4	253.8	262.3	267.9	267.2	266.0	267.7	266.7	261.9	258.5	256.9	254.3	257.3	261.1	258.2	256.1	256.7	260.1	263.4	264.2	265.9	263.9	260.6	261.7	262.5	263.1	-9999.0
140	Greenland Sea	238.5	237.4	236.8	241.5	244.1	243.7	247.2	246.8	246.0	251.3	254.0	251.7	251.0	251.5	249.6	248.7	245.9	249.9	249.0	246.5	247.6	248.3	248.0	249.7	251.5	249.6	249.2	252.1	255.4	255.1	-9999.0
142	Norwegian Sea	273.7	272.6	271.2	271.9	272.4	273.1	272.8	272.3	270.8	270.4	271.7	272.0	272.9	273.3	272.5	273.6	274.3	273.9	273.7	273.0	273.1	274.1	273.8	274.2	273.0	270.4	270.1	271.6	273.8	273.5	-9999.0
144	Barents Sea	270.7	271.2	271.8	271.8	271.3	271.6	272.6	275.2	272.2	271.5	272.1	273.5	273.4	273.2	274.2	271.5	271.8	273.2	273.5	271.0	268.0	266.3	265.7	265.7	268.1	272.5	274.0	273.8	274.9	273.2	-9999.0
146	Kara Sea	267.8	266.7	266.1	267.2	268.0	268.0	267.0	266.9	267.7	268.2	267.6	267.4	267.2	268.2	271.4	273.4	273.0	271.4	269.9	268.1	267.1	265.6	265.7	267.5	269.1	269.0	268.2	267.9	269.7	272.3	-9999.0
148	Laptev Sea	259.9	258.1	254.6	253.7	254.1	254.3	254.8	256.5	257.5	256.7	256.8	256.7	256.9	257.8	259.6	259.3	259.5	260.4	259.3	260.2	260.5	262.1	263.5	263.9	264.3	266.6	268.6	268.6	266.6	266.0	-9999.0
150	East Siberian Sea	250.2	252.2	251.3	251.0	252.7	252.1	253.1	252.9	252.3	253.3	254.4	254.5	254.5	254.4	253.9	258.7	261.3	264.2	265.6	265.4	264.0	267.6	267.6	266.8	267.2	265.4	265.5	265.8	264.6	263.8	-9999.0
152	Gulf of Alaska	267.5	269.5	270.0	268.4	266.8	268.9	271.6	272.8	272.0	270.6	269.4	269.7	270.2	271.8	271.2	269.1	268.6	268.2	267.8	269.2	271.7	270.0	267.1	269.5	269.3	271.3	270.0	269.0	271.5	273.6	-9999.0
154	Southeast Bering Sea	264.3	265.4	264.4	265.4	271.0	272.2	270.7	271.6	271.8	271.4	271.8	273.1	272.9	272.2	270.7	269.7	270.2	269.4	267.0	268.2	269.3	268.4	268.2	267.4	267.9	265.7	263.9	264.0	271.7	271.0	-9999.0