Station: Portland Airport  

  Atmospheric Gas Attenuation - ITU Rec 676-11   ----------------- dB/100km -----------------
Date Time Temp RH % AH g/m3 Dew Point Wind Direction Speed kph Gust kph Barometer mB Rainfall Since 9am 24GHz 47GHz 76GHz 122GHz 134GHz 241GHz
21/09 04:20 9 78 6.88 5.4 24 35 1020.9 2.2 16.1 24.8 35.5 92.8 81.8 279.5
21/09 04:10 9.1 77 6.83 5.3 26 41 1020.7 2.2 16.0 24.6 35.2 92.1 81.0 276.8
21/09 04:00 9.5 71 6.46 4.5 24 32 1020.4 2.2 15.2 23.9 33.6 87.7 75.7 258.4
21/09 03:50 9.5 73 6.65 4.9 24 33 1020.3 2.2 15.6 24.2 34.3 89.7 78.2 267.0
21/09 03:40 9.1 74 6.57 4.7 20 37 1020.3 2.2 15.4 24.2 34.2 89.3 77.5 264.7
21/09 03:30 9.2 74 6.61 4.8 24 39 1020.3 2.2 15.5 24.2 34.3 89.6 78.0 266.2
21/09 03:20 9.1 81 7.19 6 24 37 1020.2 2.2 16.8 25.2 36.7 95.9 85.7 293.5
21/09 03:10 9.3 82 7.37 6.4 28 43 1020.1 2.2 17.2 25.4 37.3 97.6 87.9 301.2
21/09 03:00 9.5 80 7.28 6.2 20 35 1019.9 2.2 17.0 25.2 36.8 96.4 86.5 296.1
21/09 02:50 9.8 80 7.42 6.5 26 41 1019.9 2.2 17.2 25.4 37.3 97.5 88.0 301.5
21/09 02:40 9.8 79 7.33 6.3 24 35 1019.9 2.2 17.0 25.2 36.9 96.6 86.8 297.3
21/09 02:30 9.7 74 6.82 5.3 26 39 1019.8 2.2 16.0 24.4 34.9 91.2 80.2 274.0
21/09 02:20 9.5 74 6.74 5.1 22 33 1019.7 2.2 15.8 24.3 34.7 90.6 79.3 271.0
21/09 02:10 9.1 80 7.1 5.8 22 33 1019.7 2.2 16.6 25.0 36.3 94.9 84.5 289.1
21/09 02:00 9.1 82 7.28 6.2 28 41 1019.7 2.2 17.0 25.3 37.0 96.9 86.9 297.6
21/09 01:50 9.6 85 7.79 7.2 28 43 1019.6 2.2 18.0 26.0 38.9 101.8 93.2 319.8
21/09 01:40 9.7 81 7.47 6.6 24 35 1019.6 2.2 17.4 25.5 37.5 98.2 88.8 304.2
21/09 01:30 9.8 75 6.96 5.6 22 33 1019.4 2.2 16.3 24.6 35.4 92.5 81.9 280.0
21/09 01:20 9.7 74 6.82 5.3 24 35 1019.3 2.2 16.0 24.4 34.9 91.1 80.1 273.9
21/09 01:10 9.9 74 6.91 5.5 28 35 1019.1 2.2 16.1 24.5 35.1 91.9 81.1 277.3
21/09 01:00 9.6 77 7.06 5.8 28 43 1019 2.2 16.5 24.8 35.9 93.8 83.4 285.3
21/09 00:50 10.1 75 7.09 5.9 30 41 1018.9 2.2 16.5 24.7 35.8 93.5 83.2 284.8
21/09 00:40 10.1 77 7.28 6.3 33 41 1018.7 2.2 16.9 25.0 36.5 95.5 85.7 293.6
21/09 00:30 10.5 72 6.98 5.7 37 50 1018.5 2.2 16.3 24.4 35.1 91.8 81.3 278.2
21/09 00:20 10.4 72 6.94 5.6 30 41 1018.4 2.2 16.2 24.4 35.0 91.5 80.9 276.7
21/09 00:10 10.3 71 6.8 5.3 30 46 1018.2 2.2 15.9 24.2 34.5 90.1 79.2 270.7
21/09 00:00 10.5 70 6.79 5.3 33 46 1018.1 2.2 15.9 24.1 34.4 89.8 78.8 269.5
20/09 23:50 10.5 74 7.18 6.1 30 43 1017.9 2.2 16.7 24.7 35.9 93.9 83.9 287.3
20/09 23:40 10.5 77 7.47 6.6 32 44 1017.9 2.2 17.3 25.2 37.1 97.0 87.8 300.7
20/09 23:30 10.7 76 7.47 6.6 33 43 1017.6 2.2 17.3 25.1 36.9 96.7 87.5 299.9
20/09 23:20 10.7 76 7.47 6.6 32 46 1017.7 2.2 17.3 25.1 36.9 96.7 87.5 299.9
20/09 23:10 10.8 79 7.81 7.3 33 48 1017.5 2.2 18.0 25.6 38.3 100.3 91.9 315.3
20/09 23:00 11.2 77 7.81 7.3 35 50 1017.1 2.2 18.0 25.5 38.1 99.7 91.4 313.6
20/09 22:50 11.2 79 8.01 7.7 35 50 1017.1 2.2 18.4 25.8 38.9 101.9 94.1 323.0
20/09 22:40 11.1 80 8.06 7.8 30 39 1017 2.2 18.6 25.9 39.1 102.6 94.9 325.7
20/09 22:30 11.2 81 8.21 8.1 30 43 1016.7 2.2 18.9 26.1 39.7 104.0 96.7 332.3
20/09 22:20 11 81 8.11 7.9 30 44 1016.7 2.2 18.7 26.0 39.4 103.2 95.6 328.4
20/09 22:10 11.4 78 8.01 7.7 35 54 1016.5 2.2 18.4 25.8 38.7 101.6 93.8 322.0
20/09 22:00 11.4 83 8.52 8.6 32 46 1016.4 2.2 19.5 26.6 40.8 107.1 100.7 346.1
20/09 21:50 11.6 83 8.63 8.8 33 48 1016.2 2.2 19.8 26.7 41.2 108.1 101.9 350.4
20/09 21:40 11.7 83 8.68 8.9 33 46 1015.9 2.2 19.9 26.7 41.3 108.5 102.4 352.3
20/09 21:30 11.8 86 9.05 9.5 35 50 1015.6 2.2 20.7 27.3 42.8 112.4 107.3 369.5
20/09 21:20 11.8 91 9.58 10.4 32 44 1015.6 2.2 21.8 28.2 45.1 118.4 114.7 395.4
20/09 21:10 11.6 90 9.36 10 33 46 1015.3 2.2 21.3 27.9 44.2 116.2 111.9 385.5
20/09 21:00 11.6 94 9.77 10.7 33 46 1015 2.2 22.2 28.6 46.0 120.8 117.7 405.6
20/09 20:50 11.6 96 9.98 11 37 48 1015.1 2 22.7 29.0 46.9 123.3 120.7 416.1
20/09 20:40 11.6 96 9.98 11 41 63 1014.8 2 22.7 29.0 46.9 123.2 120.7 416.0
20/09 20:30 13 94 10.66 12.1 39 57 1014.2 1.4 24.1 29.7 48.9 128.8 128.1 442.1
20/09 20:20 13.2 93 10.68 12.1 35 52 1014.1 1 24.1 29.6 48.9 128.7 128.0 442.0
20/09 20:10 13.3 93 10.75 12.2 35 48 1013.9 1 24.2 29.7 49.1 129.3 128.8 444.8
20/09 20:00 13.1 93 10.61 12 32 43 1013.7 1 23.9 29.5 48.6 128.0 127.1 438.9
20/09 19:50 12.9 94 10.6 12 35 48 1013.5 1 23.9 29.6 48.7 128.2 127.3 439.5
20/09 19:40 13.1 96 10.96 12.5 37 57 1013.4 1 24.7 30.1 50.2 132.1 132.2 456.4
20/09 19:30 13.1 96 10.96 12.5 35 50 1013.3 1 24.7 30.1 50.2 132.1 132.1 456.4
20/09 19:20 13 94 10.66 12.1 39 54 1013 1 24.1 29.6 48.9 128.7 128.0 441.7
20/09 19:10 13.2 93 10.68 12.1 35 52 1012.9 1 24.1 29.6 48.8 128.6 127.9 441.5
20/09 19:00 13 93 10.55 11.9 37 48 1012.7 1 23.8 29.4 48.4 127.4 126.3 436.1
20/09 18:50 12.7 96 10.69 12.1 41 54 1012.6 1 24.1 29.8 49.2 129.5 128.9 444.8
20/09 18:40 12.7 96 10.69 12.1 43 69 1012.5 1 24.1 29.8 49.2 129.5 128.8 444.8
20/09 18:30 13.5 95 11.11 12.7 37 50 1012.2 0.4 25.0 30.2 50.5 133.0 133.5 461.2
20/09 18:20 13.5 96 11.23 12.9 37 57 1012 0.4 25.3 30.4 51.0 134.4 135.2 467.2
20/09 18:10 13.6 93 10.95 12.5 39 52 1011.8 0.4 24.6 29.9 49.7 130.9 131.0 452.4
20/09 18:00 13.8 91 10.84 12.4 39 61 1011.5 0 24.4 29.6 49.1 129.2 129.0 445.6
20/09 17:50 13.9 89 10.67 12.1 41 61 1011.2 0 24.0 29.3 48.3 127.1 126.4 436.5
20/09 17:40 14.1 90 10.92 12.5 41 57 1011.2 0 24.6 29.6 49.2 129.6 129.6 447.7
20/09 17:30 13.9 91 10.91 12.5 41 57 1010.9 0 24.5 29.7 49.3 129.8 129.8 448.3
20/09 17:20 13.7 93 11.01 12.6 44 63 1010.8 0 24.8 29.9 49.9 131.3 131.6 454.4
20/09 17:10 13.9 94 11.27 13 43 63 1010.7 0 25.3 30.3 50.9 134.0 135.0 466.3
20/09 17:00 14.6 88 11.01 12.6 48 65 1010.6 0 24.7 29.6 49.3 129.8 130.0 449.1
20/09 16:50 15.4 80 10.51 12 43 57 1010.3 0 23.6 28.5 46.6 122.7 121.6 420.0
20/09 16:40 15.3 80 10.45 11.9 39 59 1010.2 0 23.5 28.4 46.4 122.2 121.0 417.7
20/09 16:30 15.7 77 10.3 11.7 41 61 1010.2 0 23.1 28.0 45.6 119.9 118.3 408.3
20/09 16:20 15.8 76 10.23 11.6 43 65 1010.1 0 23.0 27.8 45.2 119.0 117.2 404.5
20/09 16:10 16.1 76 10.42 11.9 44 67 1010 0 23.4 28.1 45.8 120.6 119.3 411.9
20/09 16:00 15.9 74 10.02 11.3 52 76 1009.7 0 22.5 27.4 44.3 116.5 114.1 393.9
20/09 15:50 16 72 9.81 11 54 82 1009.5 0 22.1 27.1 43.4 114.0 111.2 383.5
20/09 15:40 16.6 74 10.45 12 48 70 1009.5 0 23.4 27.9 45.6 120.1 118.9 410.5
20/09 15:30 16.4 77 10.75 12.4 46 67 1009.6 0 24.1 28.5 47.0 123.8 123.3 425.9
20/09 15:20 16.8 77 11.01 12.7 50 69 1009.4 0 24.6 28.8 47.8 126.0 126.2 436.1
20/09 15:10 16.9 78 11.22 13 48 69 1009.2 0 25.0 29.1 48.6 128.2 128.9 445.6
20/09 15:00 16.8 77 11.01 12.7 52 70 1009.1 0 24.6 28.8 47.8 126.0 126.2 436.0
20/09 14:50 17.4 78 11.56 13.5 48 70 1009 0 25.7 29.5 49.8 131.1 132.7 459.0
20/09 14:40 17.2 76 11.13 12.9 54 70 1008.7 0 24.8 28.8 48.1 126.6 127.1 439.3
20/09 14:30 17.4 73 10.82 12.5 50 74 1008.6 0 24.1 28.3 46.6 122.8 122.5 423.4
20/09 14:20 17.4 73 10.82 12.5 52 70 1008.4 0 24.1 28.3 46.6 122.8 122.5 423.4
20/09 14:10 18.1 73 11.28 13.2 50 80 1008.3 0 25.1 28.8 48.1 126.8 127.6 441.3
20/09 14:00 18.2 68 10.57 12.2 50 70 1008.1 0 23.6 27.6 45.1 118.8 117.9 407.3
20/09 13:50 19 63 10.27 11.8 48 67 1007.8 0 22.9 26.8 43.5 114.4 112.7 389.4
20/09 13:40 20.7 56 10.08 11.6 46 61 1007.8 0 22.4 26.0 41.8 110.0 107.9 372.7
20/09 13:30 21.4 51 9.56 10.9 48 69 1007.6 0 21.3 25.0 39.5 103.8 100.5 346.8
20/09 13:20 22 46 8.93 9.9 50 82 1007.6 0 19.9 23.9 36.9 96.9 92.1 317.7
20/09 13:10 22.4 43 8.54 9.2 46 74 1007.5 0 19.1 23.3 35.3 92.7 87.1 300.0
20/09 13:00 22.9 40 8.17 8.6 48 82 1007.2 0 18.3 22.6 33.8 88.6 82.3 283.1
20/09 12:50 23.4 37 7.78 7.9 46 70 1007.1 0 17.4 21.9 32.3 84.5 77.3 265.9
20/09 12:40 24 35 7.61 7.6 37 72 1007.1 0 17.1 21.6 31.4 82.4 74.9 257.4
20/09 12:30 23.5 36 7.61 7.6 39 56 1007.1 0 17.1 21.7 31.6 82.9 75.3 259.0
20/09 12:20 22.6 35 7.03 6.4 37 56 1007.3 0 15.9 21.1 30.0 78.6 69.7 239.2
20/09 12:10 22.5 36 7.19 6.7 35 56 1007.2 0 16.2 21.3 30.6 80.1 71.6 245.7
20/09 12:00 22.9 35 7.15 6.6 35 54 1006.9 0 16.1 21.2 30.3 79.3 70.8 242.9
20/09 11:50 22.4 36 7.15 6.6 33 48 1007 0 16.2 21.3 30.5 79.8 71.2 244.4

Last Refresh: 21-Sep-2026 04:02:30

Bureau of Meteorology