| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.02 | 2.95 | 0.07 |
| Feb | 2.57 | 2.54 | 0.03 |
| Mar | 3.10 | 3.14 | -0.04 |
| Apr | 3.51 | 3.50 | 0.01 |
| May | 3.50 | 3.66 | -0.16 |
| Jun | 4.16 | 4.07 | 0.09 |
| Jul | 3.92 | 3.81 | 0.11 |
| Aug | 3.85 | 3.78 | 0.07 |
| Sep | 3.58 | 3.53 | 0.05 |
| Oct | 4.49 | 4.79 | -0.30 |
| Nov | 3.27 | 3.42 | -0.15 |
| Dec | 3.64 | 3.88 | -0.24 |
42.61 | 43.07 | -0.46 |