| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.78 | 0.98 | -0.20 |
| Feb | 0.78 | 0.94 | -0.16 |
| Mar | 1.63 | 1.76 | -0.13 |
| Apr | 2.93 | 3.12 | -0.19 |
| May | 4.17 | 4.18 | -0.01 |
| Jun | 4.59 | 4.80 | -0.21 |
| Jul | 4.25 | 4.27 | -0.02 |
| Aug | 4.59 | 4.38 | 0.21 |
| Sep | 3.36 | 3.26 | 0.10 |
| Oct | 2.72 | 2.87 | -0.15 |
| Nov | 1.58 | 1.74 | -0.16 |
| Dec | 1.13 | 1.33 | -0.20 |
32.51 | 33.63 | -1.12 |