| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.35 | 3.46 | -0.11 |
| Feb | 3.16 | 3.27 | -0.11 |
| Mar | 4.13 | 4.21 | -0.08 |
| Apr | 3.99 | 4.01 | -0.02 |
| May | 3.68 | 3.54 | 0.14 |
| Jun | 4.17 | 4.11 | 0.06 |
| Jul | 3.66 | 3.65 | 0.01 |
| Aug | 3.75 | 3.74 | 0.01 |
| Sep | 3.87 | 3.78 | 0.09 |
| Oct | 4.67 | 4.76 | -0.09 |
| Nov | 3.80 | 3.68 | 0.12 |
| Dec | 4.26 | 4.47 | -0.21 |
46.49 | 46.68 | -0.19 |