| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.72 | 0.83 | -0.11 |
| Feb | 0.80 | 0.86 | -0.06 |
| Mar | 1.54 | 1.59 | -0.05 |
| Apr | 2.81 | 3.01 | -0.20 |
| May | 4.19 | 4.32 | -0.13 |
| Jun | 4.51 | 4.50 | 0.01 |
| Jul | 4.28 | 4.27 | 0.01 |
| Aug | 4.12 | 4.16 | -0.04 |
| Sep | 3.18 | 3.19 | -0.01 |
| Oct | 2.87 | 2.74 | 0.13 |
| Nov | 1.59 | 1.66 | -0.07 |
| Dec | 1.06 | 1.21 | -0.15 |
31.67 | 32.34 | -0.67 |