| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.51 | 4.51 | 0.00 |
| Feb | 4.42 | 4.45 | -0.03 |
| Mar | 4.60 | 4.57 | 0.03 |
| Apr | 3.66 | 3.66 | 0.00 |
| May | 3.48 | 3.42 | 0.06 |
| Jun | 4.77 | 4.73 | 0.04 |
| Jul | 4.11 | 4.21 | -0.10 |
| Aug | 4.71 | 4.50 | 0.21 |
| Sep | 3.86 | 3.95 | -0.09 |
| Oct | 3.24 | 3.35 | -0.11 |
| Nov | 3.68 | 3.77 | -0.09 |
| Dec | 4.63 | 4.75 | -0.12 |
49.67 | 49.87 | -0.20 |