| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.21 | 3.05 | 0.16 |
| Feb | 2.49 | 2.51 | -0.02 |
| Mar | 3.48 | 3.50 | -0.02 |
| Apr | 4.56 | 4.71 | -0.15 |
| May | 4.99 | 5.00 | -0.01 |
| Jun | 4.92 | 5.08 | -0.16 |
| Jul | 4.24 | 4.20 | 0.04 |
| Aug | 3.60 | 3.36 | 0.24 |
| Sep | 3.15 | 3.11 | 0.04 |
| Oct | 3.25 | 3.08 | 0.17 |
| Nov | 3.53 | 3.50 | 0.03 |
| Dec | 3.20 | 3.21 | -0.01 |
44.62 | 44.31 | 0.31 |