| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.50 | 4.44 | 0.06 |
| Feb | 4.42 | 4.39 | 0.03 |
| Mar | 4.65 | 4.59 | 0.06 |
| Apr | 3.61 | 3.52 | 0.09 |
| May | 3.49 | 3.23 | 0.26 |
| Jun | 4.74 | 4.65 | 0.09 |
| Jul | 4.08 | 4.21 | -0.13 |
| Aug | 4.78 | 4.48 | 0.30 |
| Sep | 3.85 | 3.87 | -0.02 |
| Oct | 3.20 | 3.28 | -0.08 |
| Nov | 3.68 | 3.67 | 0.01 |
| Dec | 4.68 | 4.68 | 0.00 |
49.68 | 49.01 | 0.67 |