Weather Forecast Graphs for South Carolina Charleston County Twenty One Mile School (historical)
Graph For Precipitation (inches) - South Carolina Charleston County Twenty One Mile School (historical)
Graph For Snowfall (inches) - South Carolina Charleston County Twenty One Mile School (historical)
Graph For UV Index - South Carolina Charleston County Twenty One Mile School (historical)
Air Quality Index
Other Air Quality Data
- Carbon Monoxide (CO): 279, 273, 263, 262, 272, 289, 319, 373, 439, 481, 482, 459, 428, 386, 335, 299, 292, 299, 303, 295, 284, 271, 254, 236, 226, 230, 243, 258, 273, 289, 308, 328, 349, 378, 428, 486, 511, 474, 405, 356, 356, 375, 380, 351, 307, 274, 265, 267, 270, 265, 262, 278, 333, 406, 456, 463, 446, 423, 397, 365, 334, 302, 271, 255, 269, 298, 317, 314, 302, 287, 269, 249, 240, 254, 279, 295, 289, 273, 264, 271, 284, 292, 291, 285, 275, 255, 230, 219, 235, 264, 282, 277, 262, 249, 243, 239, 238, 237, 238, 232, 226, 222, 218, 212, 204, 197, 189, 181, 176 µg/m³
- Carbon Dioxide (CO₂): 450, 452, 454, 457, 462, 468, 475, 486, 499, 506, 506, 500, 492, 480, 466, 455, 451, 449, 449, 448, 448, 448, 448, 449, 451, 453, 456, 460, 464, 469, 474, 478, 482, 488, 501, 515, 520, 505, 480, 460, 453, 451, 450, 448, 447, 447, 449, 453, 457, 461, 466, 473, 485, 500, 511, 515, 514, 511, 507, 501, 492, 479, 463, 452, 448, 448, 449, 448, 448, 449, 451, 454, 458, 462, 467, 470, 470, 470, 469, 470, 471, 472, 473, 475, 473, 466, 457, 450, 448, 448, 448, 447, 445, 445, 448, 453, 455, 456, 455 ppm
Marine Data
Other Marine Data
- Wave Direction Dominant: 116, 135, 130, 137, 144, 140, 172°
- Wave Period Max: 7.4, 8.3, 8.35, 7.7, 7.7, 7.7, 8.8 s
- Wind Wave Height Max: 0.1, 0.1, 0.04, 0.02, 0.6, 0.62, 0.66 m
Flood Risk
Other Flood Data
- River Discharge: 0.47, 0.41, 0.41, 0.37, 0.37, 0.37, 0.37 m³/s