| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.87 | 2.84 | 0.03 |
| Feb | 2.22 | 2.25 | -0.03 |
| Mar | 2.70 | 2.80 | -0.10 |
| Apr | 2.50 | 2.63 | -0.13 |
| May | 2.80 | 2.74 | 0.06 |
| Jun | 7.26 | 7.40 | -0.14 |
| Jul | 8.36 | 8.08 | 0.28 |
| Aug | 9.17 | 9.17 | 0.00 |
| Sep | 6.47 | 7.18 | -0.71 |
| Oct | 2.59 | 2.57 | 0.02 |
| Nov | 1.65 | 1.70 | -0.05 |
| Dec | 2.51 | 2.42 | 0.09 |
51.10 | 51.78 | -0.68 |