1958 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	259.8	260.1	259.6	259.8	260.2	261.0	261.3	262.1	262.1	262.4	263.0	264.0	264.1	263.9	263.6	263.7	264.0	263.8	263.3	263.1	263.0	263.2	263.2	263.3	264.4	265.1	264.7	264.8	265.9	265.9	-9999.0
34	Hudson Bay	269.5	269.7	269.0	268.5	268.5	268.4	268.0	267.8	269.2	268.0	266.3	268.4	272.0	273.3	271.5	269.8	270.4	272.2	272.5	272.1	271.2	270.4	269.8	268.5	268.6	270.0	269.6	266.6	268.0	268.0	-9999.0
36	Hudson Strait	261.5	266.7	269.5	266.3	255.5	254.9	262.2	264.0	264.1	263.5	261.9	254.7	261.6	266.5	269.5	268.1	257.7	262.3	260.1	259.2	261.4	262.9	264.3	261.8	262.0	259.2	266.0	270.3	269.4	267.8	-9999.0
98	Bering Strait	264.0	263.9	262.4	263.3	262.3	264.5	262.7	260.3	262.1	264.0	265.4	266.2	264.3	264.9	264.6	263.5	262.0	263.0	261.1	263.7	262.4	265.1	268.8	269.7	270.5	272.2	271.5	271.6	269.2	270.0	-9999.0
128	Arctic subocean	240.3	241.9	239.9	235.9	236.3	236.7	238.3	242.0	239.3	243.2	242.9	244.8	245.6	248.8	246.3	245.8	249.8	249.8	245.9	245.5	245.6	245.9	249.2	248.5	247.7	248.3	250.4	253.1	256.0	257.1	-9999.0
130	Chukchi Sea	257.3	258.7	258.9	258.2	259.3	259.1	257.9	258.4	260.0	258.9	259.2	259.1	258.4	256.7	257.0	256.0	255.0	256.4	260.6	262.6	259.0	265.1	268.3	269.9	272.4	273.1	272.5	269.0	266.1	263.8	-9999.0
132	Beaufort Sea	262.9	262.8	264.9	265.7	265.1	265.0	266.3	265.9	264.7	264.3	266.8	270.2	268.9	266.2	266.0	266.5	266.5	267.9	267.4	267.8	267.3	267.0	267.7	268.1	269.6	271.2	269.5	271.9	270.5	266.2	-9999.0
134	Arctic Archipelago	246.1	245.1	244.4	250.4	253.3	250.5	246.9	248.9	248.8	247.8	250.9	250.5	248.5	248.6	247.8	247.1	251.3	255.9	257.4	258.3	256.8	252.5	255.3	258.7	257.1	251.6	252.4	255.8	257.7	255.3	-9999.0
136	Foxe Basin	251.6	254.1	253.7	252.6	253.0	257.8	259.3	252.3	253.3	254.6	246.9	246.8	247.7	250.5	252.6	249.7	247.7	251.0	255.6	254.8	258.4	256.3	252.0	254.3	258.0	256.5	256.2	258.1	252.5	262.5	-9999.0
138	Baffin Bay	251.4	244.8	242.1	241.6	245.5	247.6	250.3	252.2	245.5	247.5	251.5	253.9	248.3	247.3	252.2	253.1	256.1	245.2	241.8	245.8	248.2	248.2	245.2	246.3	250.3	252.4	254.6	253.3	259.3	255.5	-9999.0
139	South Greenland	261.1	258.1	259.9	263.3	263.9	264.5	264.2	264.1	264.5	263.5	261.5	259.1	254.7	255.5	258.8	261.7	260.3	255.4	255.9	258.4	261.4	261.3	256.3	256.7	258.8	259.7	259.8	261.2	261.4	262.6	-9999.0
140	Greenland Sea	247.8	251.2	245.1	245.0	244.6	247.2	245.7	251.2	248.7	244.8	250.5	251.0	249.7	250.6	250.1	252.9	259.2	257.7	253.0	255.0	256.9	258.8	257.7	255.0	257.3	257.4	257.9	259.1	260.9	261.2	-9999.0
142	Norwegian Sea	270.6	271.3	272.6	271.8	272.0	270.3	269.9	269.2	268.7	270.7	273.3	274.4	273.5	274.6	273.5	273.0	271.7	272.4	273.6	274.1	274.3	273.8	272.8	273.9	274.4	274.3	275.4	275.6	276.1	275.4	-9999.0
144	Barents Sea	265.5	268.0	269.5	270.6	269.8	269.5	270.2	267.9	266.6	267.6	268.0	266.3	268.7	266.0	263.8	267.5	269.3	266.5	267.8	265.5	264.4	266.2	266.9	267.7	268.9	270.7	272.2	272.8	273.6	274.2	-9999.0
146	Kara Sea	260.6	260.6	258.9	258.3	260.1	262.1	262.6	265.3	265.9	266.5	267.1	269.1	268.5	267.2	267.9	267.1	266.4	265.8	265.0	263.8	264.4	264.9	264.4	263.9	265.1	265.2	263.6	263.1	264.7	265.6	-9999.0
148	Laptev Sea	254.0	255.2	255.8	255.1	254.9	256.0	256.9	257.2	256.4	257.9	259.0	260.4	261.9	262.8	259.7	261.5	263.2	262.4	260.7	260.0	258.2	258.0	260.0	261.3	263.0	263.9	263.2	263.0	265.9	266.7	-9999.0
150	East Siberian Sea	251.5	253.3	252.9	252.3	253.4	253.3	253.6	255.4	258.3	257.8	256.5	255.7	257.4	257.5	258.5	258.7	258.1	259.5	261.7	258.5	260.8	261.0	256.8	254.4	256.2	258.1	260.7	263.3	263.3	263.5	-9999.0
152	Gulf of Alaska	273.2	272.5	270.5	270.9	270.2	272.1	271.2	270.1	270.2	271.6	272.9	271.8	269.3	271.2	271.4	270.5	270.0	267.9	267.6	267.4	267.5	268.6	271.7	271.8	271.6	274.6	274.9	273.3	273.1	274.1	-9999.0
154	Southeast Bering Sea	270.6	269.2	269.5	271.6	271.4	273.3	271.8	269.1	269.5	271.8	270.9	270.2	268.9	270.4	270.6	268.5	267.3	264.3	266.1	269.6	266.7	273.0	273.9	273.7	274.8	277.0	274.9	273.8	272.8	273.6	-9999.0