| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.51 | 3.59 | -0.08 |
| Feb | 2.81 | 2.87 | -0.06 |
| Mar | 4.21 | 4.12 | 0.09 |
| Apr | 3.61 | 3.62 | -0.01 |
| May | 3.57 | 3.67 | -0.10 |
| Jun | 4.45 | 4.34 | 0.11 |
| Jul | 4.73 | 4.72 | 0.01 |
| Aug | 4.54 | 4.60 | -0.06 |
| Sep | 4.76 | 5.21 | -0.45 |
| Oct | 3.44 | 3.45 | -0.01 |
| Nov | 3.38 | 3.36 | 0.02 |
| Dec | 3.53 | 3.55 | -0.02 |
46.54 | 47.10 | -0.56 |