| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.49 | 3.70 | -0.21 |
| Feb | 3.24 | 3.22 | 0.02 |
| Mar | 3.57 | 3.75 | -0.18 |
| Apr | 2.87 | 2.99 | -0.12 |
| May | 3.04 | 3.19 | -0.15 |
| Jun | 4.14 | 4.25 | -0.11 |
| Jul | 4.11 | 4.48 | -0.37 |
| Aug | 4.64 | 4.75 | -0.11 |
| Sep | 3.81 | 3.95 | -0.14 |
| Oct | 3.22 | 3.33 | -0.11 |
| Nov | 2.86 | 2.94 | -0.08 |
| Dec | 3.60 | 3.80 | -0.20 |
42.59 | 44.35 | -1.76 |