| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.90 | 4.00 | -0.10 |
| Feb | 3.28 | 3.39 | -0.11 |
| Mar | 4.50 | 4.73 | -0.23 |
| Apr | 4.38 | 4.51 | -0.13 |
| May | 3.56 | 3.55 | 0.01 |
| Jun | 4.10 | 4.26 | -0.16 |
| Jul | 3.60 | 3.76 | -0.16 |
| Aug | 4.05 | 4.20 | -0.15 |
| Sep | 4.24 | 4.21 | 0.03 |
| Oct | 4.71 | 4.78 | -0.07 |
| Nov | 3.99 | 4.09 | -0.10 |
| Dec | 4.66 | 4.87 | -0.21 |
48.97 | 50.35 | -1.38 |