| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.70 | 0.68 | 0.02 |
| Feb | 0.75 | 0.75 | 0.00 |
| Mar | 1.36 | 1.38 | -0.02 |
| Apr | 2.35 | 2.42 | -0.07 |
| May | 3.46 | 3.46 | 0.00 |
| Jun | 4.43 | 4.43 | 0.00 |
| Jul | 4.35 | 4.29 | 0.06 |
| Aug | 3.72 | 3.70 | 0.02 |
| Sep | 3.02 | 2.91 | 0.11 |
| Oct | 2.76 | 2.74 | 0.02 |
| Nov | 1.31 | 1.30 | 0.01 |
| Dec | 0.91 | 0.95 | -0.04 |
29.12 | 29.01 | 0.11 |