| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.63 | 4.51 | 0.12 |
| Feb | 4.60 | 4.59 | 0.01 |
| Mar | 4.88 | 4.74 | 0.14 |
| Apr | 3.67 | 3.82 | -0.15 |
| May | 3.56 | 3.60 | -0.04 |
| Jun | 4.48 | 4.60 | -0.12 |
| Jul | 4.20 | 4.52 | -0.32 |
| Aug | 4.78 | 4.57 | 0.21 |
| Sep | 3.93 | 3.87 | 0.06 |
| Oct | 3.35 | 3.40 | -0.05 |
| Nov | 3.83 | 3.90 | -0.07 |
| Dec | 4.56 | 4.56 | 0.00 |
50.47 | 50.68 | -0.21 |