| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.68 | 0.68 | 0.00 |
| Feb | 0.70 | 0.72 | -0.02 |
| Mar | 1.34 | 1.33 | 0.01 |
| Apr | 2.29 | 2.38 | -0.09 |
| May | 3.50 | 3.47 | 0.03 |
| Jun | 4.37 | 4.40 | -0.03 |
| Jul | 4.39 | 4.27 | 0.12 |
| Aug | 3.61 | 3.58 | 0.03 |
| Sep | 3.01 | 2.90 | 0.11 |
| Oct | 2.74 | 2.75 | -0.01 |
| Nov | 1.30 | 1.29 | 0.01 |
| Dec | 0.91 | 0.93 | -0.02 |
28.84 | 28.70 | 0.14 |