| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.51 | 3.66 | -0.15 |
| Feb | 3.33 | 3.35 | -0.02 |
| Mar | 4.28 | 4.47 | -0.19 |
| Apr | 4.07 | 4.21 | -0.14 |
| May | 3.60 | 3.55 | 0.05 |
| Jun | 4.03 | 4.05 | -0.02 |
| Jul | 3.53 | 3.61 | -0.08 |
| Aug | 3.59 | 3.69 | -0.10 |
| Sep | 3.81 | 3.74 | 0.07 |
| Oct | 4.64 | 4.69 | -0.05 |
| Nov | 3.79 | 3.88 | -0.09 |
| Dec | 4.56 | 4.70 | -0.14 |
46.74 | 47.60 | -0.86 |