| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.72 | 1.72 | 0.00 |
| Feb | 1.71 | 1.72 | -0.01 |
| Mar | 2.43 | 2.30 | 0.13 |
| Apr | 3.54 | 3.53 | 0.01 |
| May | 4.74 | 4.64 | 0.10 |
| Jun | 4.99 | 4.84 | 0.15 |
| Jul | 4.02 | 4.04 | -0.02 |
| Aug | 3.88 | 3.84 | 0.04 |
| Sep | 3.47 | 3.41 | 0.06 |
| Oct | 2.92 | 2.91 | 0.01 |
| Nov | 2.40 | 2.37 | 0.03 |
| Dec | 1.99 | 1.99 | 0.00 |
37.81 | 37.31 | 0.50 |