| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.45 | 3.60 | -0.15 |
| Feb | 2.76 | 2.96 | -0.20 |
| Mar | 3.99 | 4.18 | -0.19 |
| Apr | 3.93 | 4.03 | -0.10 |
| May | 4.00 | 4.06 | -0.06 |
| Jun | 4.56 | 4.71 | -0.15 |
| Jul | 4.65 | 4.66 | -0.01 |
| Aug | 4.47 | 4.60 | -0.13 |
| Sep | 4.39 | 4.46 | -0.07 |
| Oct | 4.34 | 4.36 | -0.02 |
| Nov | 3.50 | 3.57 | -0.07 |
| Dec | 4.31 | 4.43 | -0.12 |
48.35 | 49.62 | -1.27 |