| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.49 | 3.48 | 0.01 |
| Feb | 2.82 | 2.76 | 0.06 |
| Mar | 4.09 | 4.14 | -0.05 |
| Apr | 3.72 | 3.77 | -0.05 |
| May | 4.12 | 3.97 | 0.15 |
| Jun | 4.46 | 4.45 | 0.01 |
| Jul | 5.00 | 4.91 | 0.09 |
| Aug | 4.53 | 4.56 | -0.03 |
| Sep | 4.24 | 4.11 | 0.13 |
| Oct | 4.32 | 4.16 | 0.16 |
| Nov | 3.23 | 3.27 | -0.04 |
| Dec | 4.21 | 4.17 | 0.04 |
48.23 | 47.75 | 0.48 |