| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.05 | 3.97 | 0.08 |
| Feb | 4.45 | 4.49 | -0.04 |
| Mar | 4.67 | 4.80 | -0.13 |
| Apr | 5.03 | 5.01 | 0.02 |
| May | 5.27 | 5.40 | -0.13 |
| Jun | 4.20 | 4.20 | 0.00 |
| Jul | 4.33 | 4.52 | -0.19 |
| Aug | 3.71 | 3.61 | 0.10 |
| Sep | 3.63 | 3.75 | -0.12 |
| Oct | 3.78 | 3.72 | 0.06 |
| Nov | 3.74 | 3.73 | 0.01 |
| Dec | 4.78 | 4.75 | 0.03 |
51.64 | 51.95 | -0.31 |