| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.21 | 3.04 | 0.17 |
| Feb | 2.52 | 2.44 | 0.08 |
| Mar | 3.25 | 3.11 | 0.14 |
| Apr | 3.51 | 3.40 | 0.11 |
| May | 4.53 | 4.52 | 0.01 |
| Jun | 4.53 | 4.36 | 0.17 |
| Jul | 2.58 | 2.54 | 0.04 |
| Aug | 3.30 | 3.09 | 0.21 |
| Sep | 4.01 | 3.66 | 0.35 |
| Oct | 4.80 | 4.36 | 0.44 |
| Nov | 3.50 | 3.49 | 0.01 |
| Dec | 3.05 | 3.05 | 0.00 |
42.79 | 41.06 | 1.73 |