| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.90 | 0.91 | -0.01 |
| Feb | 1.00 | 0.99 | 0.01 |
| Mar | 1.87 | 1.89 | -0.02 |
| Apr | 3.34 | 3.14 | 0.20 |
| May | 4.50 | 4.29 | 0.21 |
| Jun | 5.44 | 5.13 | 0.31 |
| Jul | 4.53 | 4.60 | -0.07 |
| Aug | 4.75 | 4.45 | 0.30 |
| Sep | 3.64 | 3.65 | -0.01 |
| Oct | 2.55 | 2.44 | 0.11 |
| Nov | 1.73 | 1.62 | 0.11 |
| Dec | 1.20 | 1.24 | -0.04 |
35.45 | 34.35 | 1.10 |