| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.69 | 0.77 | -0.08 |
| Feb | 0.81 | 0.86 | -0.05 |
| Mar | 1.43 | 1.55 | -0.12 |
| Apr | 2.75 | 2.85 | -0.10 |
| May | 4.05 | 4.14 | -0.09 |
| Jun | 4.44 | 4.38 | 0.06 |
| Jul | 4.02 | 4.24 | -0.22 |
| Aug | 3.99 | 4.00 | -0.01 |
| Sep | 3.23 | 3.29 | -0.06 |
| Oct | 2.71 | 2.74 | -0.03 |
| Nov | 1.47 | 1.58 | -0.11 |
| Dec | 1.00 | 1.13 | -0.13 |
30.59 | 31.53 | -0.94 |