Frost Advisory
2026-10-31T09:00:00-07:00

* WHAT...Temperatures as low as 34 will result in frost formation. Temperatures may vary due to clearing or fog in localized areas. * WHERE...Portions of northwest and west central Washington. * WHEN...Until 9 AM PDT this morning. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. * ADDITIONAL DETAILS...The growing season officially ends on October 31, after which no further frost or freeze headlines will be issued.

Issaquah Creek Near Mouth Near Issaquah, Wa Historical Data

Historical Data


Streamflow Range


Date Average 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011
01-01 188.17
01-02 190.91
01-03 260.1
01-04 248.0
01-05 245.75
01-06 286.26
01-07 437.79
01-08 329.48
01-09 286.59
01-10 258.56
01-11 248.49
01-12 298.06
01-13 354.67
01-14 253.75
01-15 212.83
01-16 192.33
01-17 179.75
01-18 199.56
01-19 215.62
01-20 191.08
01-21 216.99
01-22 216.86
01-23 222.48
01-24 234.65
01-25 244.06
01-26 211.96
01-27 217.23
01-28 244.27
01-29 224.85
01-30 290.84
01-31 264.43
02-01 278.92
02-02 278.93
02-03 227.99
02-04 214.21
02-05 210.88
02-06 362.2
02-07 322.53
02-08 307.28
02-09 229.24
02-10 186.74
02-11 179.77
02-12 180.46
02-13 186.35
02-14 182.82
02-15 184.45
02-16 200.43
02-17 209.54
02-18 239.87
02-19 230.42
02-20 207.45
02-21 206.89
02-22 216.82
02-23 241.81
02-24 221.46
02-25 211.82
02-26 194.45
02-27 181.09
02-28 201.43
02-29 206.5
03-01 342.88
03-02 240.22
03-03 231.49
03-04 212.43
03-05 215.52
03-06 234.76
03-07 208.42
03-08 188.56
03-09 201.01
03-10 193.39
03-11 191.41
03-12 202.73
03-13 212.5
03-14 224.5
03-15 242.14
03-16 270.57
03-17 276.86
03-18 251.57
03-19 250.67
03-20 239.7
03-21 242.36
03-22 223.34
03-23 196.67
03-24 191.4
03-25 193.59
03-26 181.2
03-27 183.13
03-28 181.27
03-29 181.93
03-30 199.46
03-31 189.03
04-01 181.45
04-02 174.02
04-03 159.61
04-04 152.15
04-05 147.31
04-06 148.25
04-07 157.59
04-08 195.74
04-09 207.54
04-10 180.2
04-11 191.13
04-12 203.11
04-13 191.65
04-14 174.77
04-15 229.57
04-16 192.17
04-17 208.69
04-18 181.25
04-19 161.53
04-20 185.64
04-21 173.73
04-22 154.66
04-23 165.9
04-24 160.79
04-25 153.39
04-26 142.74
04-27 134.4
04-28 127.66
04-29 124.82
04-30 119.49
05-01 131.9
05-02 108.79
05-03 111.78
05-04 123.61
05-05 131.13
05-06 141.22
05-07 137.29
05-08 119.75
05-09 119.52
05-10 115.51
05-11 104.71
05-12 104.65
05-13 101.24
05-14 94.98
05-15 97.84
05-16 137.9
05-17 125.56
05-18 112.55
05-19 103.33
05-20 93.76
05-21 95.34
05-22 102.51
05-23 94.69
05-24 91.63
05-25 81.45
05-26 85.24
05-27 82.59
05-28 84.33
05-29 76.69
05-30 77.21
05-31 81.45
06-01 76.95
06-02 76.14
06-03 74.29
06-04 71.63
06-05 69.55
06-06 79.36
06-07 72.71
06-08 70.74
06-09 73.37
06-10 97.09
06-11 83.86
06-12 78.38
06-13 75.53
06-14 83.79
06-15 70.55
06-16 86.58
06-17 70.59
06-18 69.96
06-19 75.05
06-20 69.87
06-21 71.19
06-22 63.96
06-23 65.6
06-24 67.62
06-25 67.72
06-26 60.14
06-27 58.36
06-28 57.94
06-29 55.53
06-30 52.33
07-01 50.66
07-02 49.12
07-03 48.72
07-04 49.82
07-05 45.57
07-06 43.87
07-07 43.07
07-08 42.61
07-09 39.94
07-10 40.91
07-11 42.42
07-12 38.53
07-13 40.21
07-14 38.16
07-15 36.28
07-16 35.28
07-17 36.06
07-18 37.2
07-19 35.49
07-20 33.88
07-21 34.35
07-22 33.41
07-23 33.12
07-24 36.16
07-25 33.07
07-26 31.99
07-27 29.99
07-28 29.17
07-29 27.96
07-30 27.42
07-31 26.69
08-01 26.93
08-02 26.16
08-03 27.09
08-04 26.23
08-05 25.34
08-06 24.93
08-07 25.66
08-08 25.74
08-09 25.85
08-10 25.81
08-11 25.04
08-12 25.51
08-13 24.67
08-14 26.06
08-15 24.23
08-16 26.18
08-17 23.65
08-18 22.82
08-19 22.79
08-20 22.16
08-21 22.05
08-22 22.46
08-23 23.14
08-24 23.45
08-25 21.73
08-26 21.59
08-27 21.94
08-28 21.89
08-29 24.72
08-30 31.96
08-31 26.01
09-01 26.33
09-02 23.62
09-03 25.29
09-04 25.16
09-05 25.72
09-06 25.89
09-07 26.99
09-08 24.6
09-09 23.82
09-10 25.29
09-11 23.21
09-12 22.77
09-13 22.98
09-14 26.47
09-15 23.87
09-16 25.72
09-17 26.93
09-18 32.15
09-19 32.69
09-20 34.57
09-21 28.06
09-22 26.2
09-23 29.06
09-24 33.09
09-25 33.18
09-26 39.73
09-27 36.04
09-28 39.69
09-29 56.54
09-30 51.42
10-01 65.79
10-02 44.97
10-03 42.02
10-04 35.94
10-05 32.29
10-06 35.25
10-07 34.37
10-08 35.17
10-09 42.99
10-10 50.35
10-11 42.84
10-12 51.4
10-13 43.56
10-14 49.23
10-15 51.78
10-16 47.81
10-17 52.72
10-18 47.61
10-19 55.8
10-20 83.66
10-21 81.59
10-22 123.82
10-23 104.22
10-24 77.21
10-25 77.03
10-26 84.46
10-27 95.64
10-28 88.04
10-29 154.32
10-30 98.97
10-31 128.04
11-01 108.06
11-02 116.43
11-03 114.95
11-04 110.44
11-05 139.09
11-06 148.97
11-07 156.54
11-08 149.74
11-09 117.54
11-10 120.87
11-11 104.14
11-12 130.97
11-13 195.35
11-14 226.44
11-15 207.33
11-16 186.99
11-17 131.58
11-18 136.92
11-19 145.4
11-20 171.98
11-21 144.01
11-22 161.75
11-23 161.33
11-24 205.89
11-25 160.71
11-26 185.12
11-27 185.99
11-28 201.57
11-29 212.81
11-30 169.12
12-01 169.86
12-02 151.76
12-03 173.85
12-04 158.5
12-05 178.23
12-06 269.82
12-07 200.59
12-08 219.95
12-09 299.93
12-10 257.08
12-11 354.78
12-12 282.85
12-13 201.59
12-14 180.0
12-15 158.09
12-16 181.49
12-17 229.59
12-18 195.88
12-19 239.82
12-20 274.55
12-21 370.15
12-22 326.02
12-23 282.79
12-24 284.0
12-25 287.85
12-26 231.7
12-27 231.08
12-28 260.64
12-29 221.92
12-30 231.45
12-31 205.92

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index