| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.73 | 0.88 | -0.15 |
| Feb | 0.78 | 0.88 | -0.10 |
| Mar | 1.54 | 1.59 | -0.05 |
| Apr | 2.92 | 3.00 | -0.08 |
| May | 4.16 | 4.32 | -0.16 |
| Jun | 4.60 | 4.63 | -0.03 |
| Jul | 4.13 | 4.17 | -0.04 |
| Aug | 4.31 | 4.30 | 0.01 |
| Sep | 3.36 | 3.31 | 0.05 |
| Oct | 2.69 | 2.66 | 0.03 |
| Nov | 1.52 | 1.59 | -0.07 |
| Dec | 1.03 | 1.24 | -0.21 |
31.77 | 32.57 | -0.80 |