| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.68 | 0.76 | -0.08 |
| Feb | 0.80 | 0.86 | -0.06 |
| Mar | 1.42 | 1.55 | -0.13 |
| Apr | 2.71 | 2.84 | -0.13 |
| May | 4.05 | 4.13 | -0.08 |
| Jun | 4.36 | 4.37 | -0.01 |
| Jul | 4.05 | 4.22 | -0.17 |
| Aug | 3.95 | 4.00 | -0.05 |
| Sep | 3.20 | 3.27 | -0.07 |
| Oct | 2.74 | 2.74 | 0.00 |
| Nov | 1.48 | 1.57 | -0.09 |
| Dec | 0.98 | 1.12 | -0.14 |
30.42 | 31.43 | -1.01 |