| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.71 | 3.80 | -0.09 |
| Feb | 2.90 | 3.15 | -0.25 |
| Mar | 4.32 | 4.53 | -0.21 |
| Apr | 3.62 | 3.81 | -0.19 |
| May | 3.85 | 3.85 | 0.00 |
| Jun | 4.01 | 4.23 | -0.22 |
| Jul | 4.71 | 4.59 | 0.12 |
| Aug | 4.46 | 4.54 | -0.08 |
| Sep | 3.99 | 4.05 | -0.06 |
| Oct | 4.16 | 4.25 | -0.09 |
| Nov | 3.33 | 3.48 | -0.15 |
| Dec | 4.38 | 4.63 | -0.25 |
47.44 | 48.91 | -1.47 |