| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.28 | 3.15 | 0.13 |
| Feb | 2.72 | 2.63 | 0.09 |
| Mar | 2.91 | 3.05 | -0.14 |
| Apr | 3.60 | 3.57 | 0.03 |
| May | 4.29 | 4.25 | 0.04 |
| Jun | 5.03 | 4.79 | 0.24 |
| Jul | 4.99 | 4.72 | 0.27 |
| Aug | 5.01 | 4.67 | 0.34 |
| Sep | 4.09 | 3.92 | 0.17 |
| Oct | 4.75 | 4.55 | 0.20 |
| Nov | 3.56 | 3.45 | 0.11 |
| Dec | 3.83 | 3.69 | 0.14 |
48.06 | 46.44 | 1.62 |