| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.43 | 3.61 | -0.18 |
| Feb | 3.22 | 3.31 | -0.09 |
| Mar | 4.41 | 4.51 | -0.10 |
| Apr | 5.26 | 5.12 | 0.14 |
| May | 5.27 | 5.28 | -0.01 |
| Jun | 4.59 | 4.75 | -0.16 |
| Jul | 4.10 | 4.13 | -0.03 |
| Aug | 3.54 | 3.27 | 0.27 |
| Sep | 3.74 | 3.62 | 0.12 |
| Oct | 3.32 | 3.50 | -0.18 |
| Nov | 3.66 | 3.78 | -0.12 |
| Dec | 3.93 | 4.10 | -0.17 |
48.47 | 48.98 | -0.51 |