| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.60 | 0.65 | -0.05 |
| Feb | 0.73 | 0.76 | -0.03 |
| Mar | 1.47 | 1.45 | 0.02 |
| Apr | 2.66 | 2.71 | -0.05 |
| May | 3.47 | 3.52 | -0.05 |
| Jun | 4.30 | 4.19 | 0.11 |
| Jul | 3.52 | 3.51 | 0.01 |
| Aug | 3.49 | 3.49 | 0.00 |
| Sep | 3.07 | 2.97 | 0.10 |
| Oct | 2.30 | 2.18 | 0.12 |
| Nov | 1.20 | 1.21 | -0.01 |
| Dec | 0.80 | 0.90 | -0.10 |
27.61 | 27.54 | 0.07 |