| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.83 | 0.81 | 0.02 |
| Feb | 0.87 | 0.88 | -0.01 |
| Mar | 1.46 | 1.48 | -0.02 |
| Apr | 2.68 | 2.77 | -0.09 |
| May | 3.59 | 3.75 | -0.16 |
| Jun | 4.13 | 4.24 | -0.11 |
| Jul | 4.09 | 4.28 | -0.19 |
| Aug | 3.80 | 3.93 | -0.13 |
| Sep | 3.59 | 3.56 | 0.03 |
| Oct | 3.05 | 3.08 | -0.03 |
| Nov | 1.65 | 1.65 | 0.00 |
| Dec | 1.20 | 1.25 | -0.05 |
30.94 | 31.68 | -0.74 |