| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.73 | 2.06 | -0.33 |
| Feb | 1.58 | 1.88 | -0.30 |
| Mar | 1.21 | 1.63 | -0.42 |
| Apr | 1.04 | 1.10 | -0.06 |
| May | 1.07 | 1.22 | -0.15 |
| Jun | 0.53 | 0.69 | -0.16 |
| Jul | 1.91 | 1.86 | 0.05 |
| Aug | 2.20 | 2.26 | -0.06 |
| Sep | 2.13 | 2.31 | -0.18 |
| Oct | 1.64 | 1.59 | 0.05 |
| Nov | 1.37 | 1.50 | -0.13 |
| Dec | 1.50 | 1.71 | -0.21 |
17.91 | 19.81 | -1.90 |