| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.47 | 3.39 | 0.08 |
| Feb | 2.82 | 2.78 | 0.04 |
| Mar | 3.85 | 3.79 | 0.06 |
| Apr | 3.86 | 3.93 | -0.07 |
| May | 4.18 | 4.33 | -0.15 |
| Jun | 4.53 | 4.27 | 0.26 |
| Jul | 4.25 | 4.00 | 0.25 |
| Aug | 3.51 | 3.57 | -0.06 |
| Sep | 4.41 | 4.30 | 0.11 |
| Oct | 3.42 | 3.39 | 0.03 |
| Nov | 3.59 | 3.60 | -0.01 |
| Dec | 3.63 | 3.61 | 0.02 |
45.52 | 44.96 | 0.56 |