| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.63 | 3.76 | -0.13 |
| Feb | 2.95 | 3.06 | -0.11 |
| Mar | 3.94 | 4.07 | -0.13 |
| Apr | 3.80 | 3.93 | -0.13 |
| May | 3.73 | 3.57 | 0.16 |
| Jun | 4.28 | 4.14 | 0.14 |
| Jul | 4.28 | 4.28 | 0.00 |
| Aug | 4.48 | 4.53 | -0.05 |
| Sep | 4.39 | 4.61 | -0.22 |
| Oct | 3.29 | 3.28 | 0.01 |
| Nov | 3.37 | 3.47 | -0.10 |
| Dec | 3.42 | 3.62 | -0.20 |
45.56 | 46.32 | -0.76 |