Overview Realtime Historical Map View
Dense Fog Advisory
2026-11-01T10:00:00-08:00

* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...In Oregon, East Central Willamette Valley, East Portland Metro, Inner Portland Metro, Lower Columbia River, Tualatin Valley, and West Central Willamette Valley. In Washington, Cowlitz County Lowlands, East Clark County Lowlands, Inner Vancouver Metro, and North Clark County Lowlands. * WHEN...From 1 AM to 10 AM PST Sunday. * IMPACTS...Low visibility could make driving conditions hazardous.

Silver Creek At Silverton, Oreg. Historical Data

Historical Data


Streamflow Range


Date Average 2020 2019 2018 2017 2016 2015
01-01 229.33
01-02 243.33
01-03 214.5
01-04 193.33
01-05 204.0
01-06 207.67
01-07 352.5
01-08 285.0
01-09 386.0
01-10 252.33
01-11 349.0
01-12 464.0
01-13 425.0
01-14 388.0
01-15 298.33
01-16 332.0
01-17 299.5
01-18 370.5
01-19 385.0
01-20 464.25
01-21 378.5
01-22 422.5
01-23 420.0
01-24 562.5
01-25 588.67
01-26 524.33
01-27 425.0
01-28 516.0
01-29 606.25
01-30 604.5
01-31 451.0
02-01 382.67
02-02 387.0
02-03 329.5
02-04 318.5
02-05 257.33
02-06 287.0
02-07 286.33
02-08 284.0
02-09 283.67
02-10 250.67
02-11 217.0
02-12 326.5
02-13 313.0
02-14 282.0
02-15 402.67
02-16 393.0
02-17 444.5
02-18 476.0
02-19 377.0
02-20 342.33
02-21 302.0
02-22 255.33
02-23 240.0
02-24 260.67
02-25 391.0
02-26 224.0
02-27 207.67
02-28 220.33
02-29 212.0
03-01 199.0
03-02 199.33
03-03 191.93
03-04 172.67
03-05 166.27
03-06 225.0
03-07 202.33
03-08 192.0
03-09 184.67
03-10 203.47
03-11 187.9
03-12 187.23
03-13 213.77
03-14 291.23
03-15 364.0
03-16 353.4
03-17 333.07
03-18 296.07
03-19 371.73
03-20 341.9
03-21 365.93
03-22 434.67
03-23 324.55
03-24 319.18
03-25 393.0
03-26 356.0
03-27 382.5
03-28 248.0
03-29 373.0
03-30 418.5
03-31 480.33
04-01 397.75
04-02 353.0
04-03 327.0
04-04 286.75
04-05 288.5
04-06 303.0
04-07 362.0
04-08 467.0
04-09 166.5
04-10 392.25
04-11 383.5
04-12 398.5
04-13 330.0
04-14 303.25
04-15 284.33
04-16 258.67
04-17 238.0
04-18 226.23
04-19 201.0
04-20 199.9
04-21 162.93
04-22 147.68
04-23 151.75
04-24 154.75
04-25 275.93
04-26 260.75
04-27 312.05
04-28 299.25
04-29 230.0
04-30 203.72
05-01 181.38
05-02 97.2
05-03 116.33
05-04 133.53
05-05 127.55
05-06 122.35
05-07 110.38
05-08 73.5
05-09 90.7
05-10 85.0
05-11 78.2
05-12 89.33
05-13 94.85
05-14 65.0
05-15 93.9
05-16 255.35
05-17 228.0
05-18 183.82
05-19 169.25
05-20 147.18
05-21 134.22
05-22 160.2
05-23 137.93
05-24 122.17
05-25 107.17
05-26 105.95
05-27 94.7
05-28 87.3
05-29 78.65
05-30 72.38
05-31 76.7
06-01 66.0
06-02 63.13
06-03 58.48
06-04 54.95
06-05 46.28
06-06 43.72
06-07 46.58
06-08 38.98
06-09 52.6
06-10 72.12
06-11 71.08
06-12 59.42
06-13 54.16
06-14 58.2
06-15 67.9
06-16 107.02
06-17 98.62
06-18 79.64
06-19 73.58
06-20 69.52
06-21 64.38
06-22 57.97
06-23 53.95
06-24 48.85
06-25 45.17
06-26 42.05
06-27 41.58
06-28 45.35
06-29 42.05
06-30 38.6
07-01 37.02
07-02 34.88
07-03 33.63
07-04 32.4
07-05 28.3
07-06 27.32
07-07 28.63
07-08 20.37
07-09 19.33
07-10 23.4
07-11 28.4
07-12 23.1
07-13 21.23
07-14 18.9
07-15 17.63
07-16 16.55
07-17 16.05
07-18 17.9
07-19 16.0
07-20 15.77
07-21 15.07
07-22 14.57
07-23 14.02
07-24 13.24
07-25 14.48
07-26 13.73
07-27 12.6
07-28 12.02
07-29 11.48
07-30 11.32
07-31 10.84
08-01 10.67
08-02 9.04
08-03 10.58
08-04 11.57
08-05 11.2
08-06 11.15
08-07 10.6
08-08 10.57
08-09 11.75
08-10 11.52
08-11 12.34
08-12 11.76
08-13 9.64
08-14 9.07
08-15 9.06
08-16 9.43
08-17 8.84
08-18 24.83
08-19 8.37
08-20 8.08
08-21 7.96
08-22 7.54
08-23 7.72
08-24 8.09
08-25 8.01
08-26 7.68
08-27 7.73
08-28 7.6
08-29 7.86
08-30 7.86
08-31 7.87
09-01 7.78
09-02 7.82
09-03 7.85
09-04 7.87
09-05 7.97
09-06 8.3
09-07 8.0
09-08 8.18
09-09 8.51
09-10 11.58
09-11 12.65
09-12 10.63
09-13 8.17
09-14 8.97
09-15 9.02
09-16 16.96
09-17 13.76
09-18 14.9
09-19 27.37
09-20 19.07
09-21 46.01
09-22 23.55
09-23 19.45
09-24 19.6
09-25 18.52
09-26 17.17
09-27 15.88
09-28 14.98
09-29 14.72
09-30 14.17
10-01 16.53
10-02 15.33
10-03 15.6
10-04 17.17
10-05 15.77
10-06 50.6
10-07 33.02
10-08 65.65
10-09 40.3
10-10 40.3
10-11 40.5
10-12 39.08
10-13 49.88
10-14 113.66
10-15 151.94
10-16 265.4
10-17 137.37
10-18 252.77
10-19 219.01
10-20 270.67
10-21 324.0
10-22 382.23
10-23 306.95
10-24 245.7
10-25 149.55
10-26 70.9
10-27 96.02
10-28 102.6
10-29 114.2
10-30 90.08
10-31 174.97
11-01 103.03
11-02 103.9
11-03 135.0
11-04 92.14
11-05 87.16
11-06 209.57
11-07 137.85
11-08 150.43
11-09 137.1
11-10 125.75
11-11 125.33
11-12 120.15
11-13 115.2
11-14 141.66
11-15 183.42
11-16 317.9
11-17 270.2
11-18 289.1
11-19 241.9
11-20 171.22
11-21 243.7
11-22 205.62
11-23 154.3
11-24 186.97
11-25 205.28
11-26 297.08
11-27 329.85
11-28 322.45
11-29 322.96
11-30 243.86
12-01 251.06
12-02 221.2
12-03 243.6
12-04 213.3
12-05 274.1
12-06 185.95
12-07 233.26
12-08 522.96
12-09 164.97
12-10 394.86
12-11 387.56
12-12 479.94
12-13 275.5
12-14 250.67
12-15 211.22
12-16 277.5
12-17 117.35
12-18 907.17
12-19 559.83
12-20 245.33
12-21 420.0
12-22 481.0
12-23 373.5
12-24 318.0
12-25 376.25
12-26 343.67
12-27 301.33
12-28 200.5
12-29 178.5
12-30 247.0
12-31 258.9

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index