| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.61 | 1.63 | -0.02 |
| Feb | 1.22 | 1.14 | 0.08 |
| Mar | 1.77 | 1.74 | 0.03 |
| Apr | 2.87 | 2.88 | -0.01 |
| May | 3.22 | 3.24 | -0.02 |
| Jun | 3.53 | 3.41 | 0.12 |
| Jul | 3.42 | 3.16 | 0.26 |
| Aug | 3.20 | 3.06 | 0.14 |
| Sep | 3.29 | 3.21 | 0.08 |
| Oct | 3.33 | 3.32 | 0.01 |
| Nov | 2.23 | 2.24 | -0.01 |
| Dec | 1.89 | 1.80 | 0.09 |
31.58 | 30.83 | 0.75 |