| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.90 | 0.95 | -0.05 |
| Feb | 0.87 | 0.81 | 0.06 |
| Mar | 1.03 | 1.08 | -0.05 |
| Apr | 1.95 | 1.99 | -0.04 |
| May | 3.00 | 3.08 | -0.08 |
| Jun | 4.04 | 4.00 | 0.04 |
| Jul | 3.94 | 3.91 | 0.03 |
| Aug | 3.24 | 3.14 | 0.10 |
| Sep | 3.54 | 3.56 | -0.02 |
| Oct | 2.74 | 2.60 | 0.14 |
| Nov | 1.58 | 1.45 | 0.13 |
| Dec | 1.17 | 1.14 | 0.03 |
28.00 | 27.71 | 0.29 |