| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.43 | 4.32 | -0.89 |
| Feb | 3.23 | 4.18 | -0.95 |
| Mar | 3.90 | 4.59 | -0.69 |
| Apr | 3.86 | 4.45 | -0.59 |
| May | 3.70 | 4.20 | -0.50 |
| Jun | 4.35 | 4.87 | -0.52 |
| Jul | 4.69 | 5.03 | -0.34 |
| Aug | 4.73 | 4.66 | 0.07 |
| Sep | 4.16 | 4.24 | -0.08 |
| Oct | 3.64 | 2.91 | 0.73 |
| Nov | 3.20 | 3.53 | -0.33 |
| Dec | 3.55 | 4.78 | -1.23 |
46.44 | 51.76 | -5.32 |