| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.44 | 2.99 | 0.45 |
| Feb | 2.98 | 2.71 | 0.27 |
| Mar | 3.81 | 3.47 | 0.34 |
| Apr | 3.77 | 3.53 | 0.24 |
| May | 3.67 | 3.50 | 0.17 |
| Jun | 3.90 | 3.70 | 0.20 |
| Jul | 4.59 | 4.10 | 0.49 |
| Aug | 3.90 | 3.46 | 0.44 |
| Sep | 3.60 | 3.25 | 0.35 |
| Oct | 2.83 | 2.46 | 0.37 |
| Nov | 3.08 | 2.70 | 0.38 |
| Dec | 3.58 | 3.15 | 0.43 |
43.15 | 39.02 | 4.13 |