| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.67 | 3.72 | -0.05 |
| Feb | 3.21 | 3.22 | -0.01 |
| Mar | 3.99 | 4.12 | -0.13 |
| Apr | 3.70 | 3.64 | 0.06 |
| May | 3.54 | 3.47 | 0.07 |
| Jun | 4.13 | 4.16 | -0.03 |
| Jul | 3.71 | 3.72 | -0.01 |
| Aug | 4.19 | 4.05 | 0.14 |
| Sep | 3.66 | 3.74 | -0.08 |
| Oct | 3.18 | 3.17 | 0.01 |
| Nov | 3.32 | 3.35 | -0.03 |
| Dec | 3.71 | 3.81 | -0.10 |
44.01 | 44.17 | -0.16 |