| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.02 | 4.05 | -0.03 |
| Feb | 3.54 | 3.50 | 0.04 |
| Mar | 4.87 | 5.05 | -0.18 |
| Apr | 4.48 | 4.59 | -0.11 |
| May | 3.52 | 3.45 | 0.07 |
| Jun | 4.02 | 4.02 | 0.00 |
| Jul | 3.36 | 3.32 | 0.04 |
| Aug | 3.91 | 3.85 | 0.06 |
| Sep | 4.13 | 4.07 | 0.06 |
| Oct | 4.76 | 4.71 | 0.05 |
| Nov | 4.27 | 4.19 | 0.08 |
| Dec | 4.89 | 4.94 | -0.05 |
49.77 | 49.74 | 0.03 |