| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.45 | 1.51 | -0.06 |
| Feb | 1.52 | 1.58 | -0.06 |
| Mar | 2.19 | 2.19 | 0.00 |
| Apr | 3.78 | 3.93 | -0.15 |
| May | 4.23 | 4.43 | -0.20 |
| Jun | 5.52 | 5.47 | 0.05 |
| Jul | 4.56 | 4.49 | 0.07 |
| Aug | 4.14 | 4.25 | -0.11 |
| Sep | 3.64 | 3.55 | 0.09 |
| Oct | 2.91 | 2.90 | 0.01 |
| Nov | 2.27 | 2.27 | 0.00 |
| Dec | 1.67 | 1.75 | -0.08 |
37.88 | 38.32 | -0.44 |