| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.78 | 0.77 | 0.01 |
| Feb | 0.82 | 0.87 | -0.05 |
| Mar | 1.43 | 1.50 | -0.07 |
| Apr | 2.62 | 2.70 | -0.08 |
| May | 3.66 | 3.63 | 0.03 |
| Jun | 4.47 | 4.44 | 0.03 |
| Jul | 4.42 | 4.57 | -0.15 |
| Aug | 3.94 | 4.06 | -0.12 |
| Sep | 3.28 | 3.38 | -0.10 |
| Oct | 3.02 | 3.08 | -0.06 |
| Nov | 1.60 | 1.60 | 0.00 |
| Dec | 1.11 | 1.20 | -0.09 |
31.15 | 31.80 | -0.65 |