| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.71 | 3.70 | 0.01 |
| Feb | 3.25 | 3.20 | 0.05 |
| Mar | 4.09 | 3.95 | 0.14 |
| Apr | 3.69 | 3.69 | 0.00 |
| May | 3.97 | 4.12 | -0.15 |
| Jun | 4.63 | 4.60 | 0.03 |
| Jul | 5.67 | 5.55 | 0.12 |
| Aug | 5.68 | 5.67 | 0.01 |
| Sep | 6.67 | 6.60 | 0.07 |
| Oct | 3.51 | 3.63 | -0.12 |
| Nov | 3.29 | 3.31 | -0.02 |
| Dec | 3.45 | 3.39 | 0.06 |
51.61 | 51.41 | 0.20 |