| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.78 | 0.99 | -0.21 |
| Feb | 0.79 | 0.95 | -0.16 |
| Mar | 1.65 | 1.78 | -0.13 |
| Apr | 2.92 | 3.14 | -0.22 |
| May | 4.15 | 4.27 | -0.12 |
| Jun | 4.62 | 4.93 | -0.31 |
| Jul | 4.21 | 4.33 | -0.12 |
| Aug | 4.62 | 4.41 | 0.21 |
| Sep | 3.35 | 3.36 | -0.01 |
| Oct | 2.76 | 2.96 | -0.20 |
| Nov | 1.60 | 1.73 | -0.13 |
| Dec | 1.13 | 1.36 | -0.23 |
32.58 | 34.21 | -1.63 |