| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.02 | 2.79 | 0.23 |
| Feb | 2.55 | 2.42 | 0.13 |
| Mar | 3.40 | 3.19 | 0.21 |
| Apr | 3.66 | 3.46 | 0.20 |
| May | 3.98 | 3.79 | 0.19 |
| Jun | 4.21 | 3.94 | 0.27 |
| Jul | 4.15 | 4.09 | 0.06 |
| Aug | 3.76 | 3.90 | -0.14 |
| Sep | 4.07 | 3.88 | 0.19 |
| Oct | 3.29 | 3.08 | 0.21 |
| Nov | 3.10 | 3.11 | -0.01 |
| Dec | 3.20 | 2.99 | 0.21 |
42.39 | 40.64 | 1.75 |