| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.83 | 2.57 | 0.26 |
| Feb | 2.49 | 2.29 | 0.20 |
| Mar | 3.12 | 3.05 | 0.07 |
| Apr | 3.37 | 3.32 | 0.05 |
| May | 3.60 | 3.31 | 0.29 |
| Jun | 4.28 | 4.27 | 0.01 |
| Jul | 4.13 | 3.98 | 0.15 |
| Aug | 4.10 | 4.08 | 0.02 |
| Sep | 3.93 | 3.73 | 0.20 |
| Oct | 4.16 | 4.16 | 0.00 |
| Nov | 2.95 | 2.90 | 0.05 |
| Dec | 3.51 | 3.41 | 0.10 |
42.47 | 41.07 | 1.40 |