| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.47 | 3.68 | -0.21 |
| Feb | 3.55 | 3.74 | -0.19 |
| Mar | 4.72 | 4.80 | -0.08 |
| Apr | 5.22 | 5.35 | -0.13 |
| May | 5.16 | 5.19 | -0.03 |
| Jun | 3.85 | 3.51 | 0.34 |
| Jul | 4.14 | 4.09 | 0.05 |
| Aug | 3.16 | 2.93 | 0.23 |
| Sep | 3.27 | 3.40 | -0.13 |
| Oct | 3.67 | 3.96 | -0.29 |
| Nov | 4.48 | 4.58 | -0.10 |
| Dec | 4.22 | 4.31 | -0.09 |
48.91 | 49.54 | -0.63 |