| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.74 | 0.90 | -0.16 |
| Feb | 0.78 | 0.89 | -0.11 |
| Mar | 1.55 | 1.62 | -0.07 |
| Apr | 2.93 | 3.01 | -0.08 |
| May | 4.17 | 4.27 | -0.10 |
| Jun | 4.63 | 4.57 | 0.06 |
| Jul | 4.12 | 4.22 | -0.10 |
| Aug | 4.36 | 4.36 | 0.00 |
| Sep | 3.36 | 3.32 | 0.04 |
| Oct | 2.66 | 2.67 | -0.01 |
| Nov | 1.53 | 1.62 | -0.09 |
| Dec | 1.03 | 1.25 | -0.22 |
31.86 | 32.70 | -0.84 |