| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.78 | 0.75 | 0.03 |
| Feb | 0.80 | 0.79 | 0.01 |
| Mar | 1.55 | 1.43 | 0.12 |
| Apr | 2.80 | 2.79 | 0.01 |
| May | 4.12 | 4.02 | 0.10 |
| Jun | 4.26 | 4.34 | -0.08 |
| Jul | 4.35 | 4.26 | 0.09 |
| Aug | 4.00 | 4.06 | -0.06 |
| Sep | 3.27 | 3.28 | -0.01 |
| Oct | 2.88 | 2.92 | -0.04 |
| Nov | 1.61 | 1.60 | 0.01 |
| Dec | 1.11 | 1.13 | -0.02 |
31.53 | 31.37 | 0.16 |