Moist Air - Weight of Water Vapor

Weight of water vapor in air. Grains of moisture per pound of dry air at standard atmospheric pressure at relative humidity ranging 10-90%.

Temperature (°C)	Relative Humidity 10%	Relative Humidity 20%	Relative Humidity 30%	Relative Humidity 40%	Relative Humidity 50%	Relative Humidity 60%	Relative Humidity 70%	Relative Humidity 80%	Relative Humidity 90%
-1	3	5	7	9	12	14	17	19	21
4	4	7	11	14	18	22	26	29	33
10	6	10	14	20	26	32	38	42	48
16	8	16	22	30	39	48	54	62	70
21	11	21	34	44	55	66	78	88	100
27	16	30	46	62	78	92	108	125	140
32	21	42	65	85	108	128	152	173	190
38	29	58	87	116	147	176	208

Temperature (°C)	Relative Humidity 10%	Relative Humidity 20%	Relative Humidity 30%	Relative Humidity 40%	Relative Humidity 50%	Relative Humidity 60%	Relative Humidity 70%	Relative Humidity 80%	Relative Humidity 90%
-1	0.0004	0.0007	0.001	0.0013	0.0017	0.002	0.0024	0.0027	0.003
4	0.0006	0.001	0.0016	0.002	0.0026	0.0031	0.0037	0.0041	0.0047
10	0.0009	0.0014	0.002	0.0029	0.0037	0.0046	0.0054	0.006	0.0069
16	0.0011	0.0023	0.0031	0.0043	0.0056	0.0069	0.0077	0.0089	0.01
21	0.0016	0.003	0.0049	0.0063	0.0079	0.0094	0.0112	0.0126	0.0143
27	0.0023	0.0043	0.0066	0.0089	0.0112	0.0132	0.0154	0.0179	0.02
32	0.003	0.006	0.0093	0.0122	0.0154	0.0183	0.0217	0.0247	0.0272
38	0.0041	0.0083	0.0124	0.0166	0.021	0.0252	0.0297