| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 5.90 | 5.77 | 0.13 |
| Feb | 4.22 | 4.00 | 0.22 |
| Mar | 3.88 | 3.73 | 0.15 |
| Apr | 2.53 | 2.38 | 0.15 |
| May | 1.55 | 1.51 | 0.04 |
| Jun | 0.75 | 0.71 | 0.04 |
| Jul | 0.30 | 0.28 | 0.02 |
| Aug | 0.29 | 0.24 | 0.05 |
| Sep | 0.56 | 0.55 | 0.01 |
| Oct | 2.08 | 2.02 | 0.06 |
| Nov | 4.75 | 4.58 | 0.17 |
| Dec | 6.97 | 6.92 | 0.05 |
33.78 | 32.69 | 1.09 |