| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.53 | 4.51 | 0.02 |
| Feb | 4.43 | 4.48 | -0.05 |
| Mar | 4.60 | 4.62 | -0.02 |
| Apr | 3.65 | 3.67 | -0.02 |
| May | 3.54 | 3.45 | 0.09 |
| Jun | 4.71 | 4.86 | -0.15 |
| Jul | 4.06 | 4.29 | -0.23 |
| Aug | 4.79 | 4.57 | 0.22 |
| Sep | 3.89 | 3.94 | -0.05 |
| Oct | 3.26 | 3.35 | -0.09 |
| Nov | 3.73 | 3.80 | -0.07 |
| Dec | 4.60 | 4.74 | -0.14 |
49.79 | 50.28 | -0.49 |