| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.70 | 0.74 | -0.04 |
| Feb | 0.80 | 0.85 | -0.05 |
| Mar | 1.45 | 1.56 | -0.11 |
| Apr | 2.68 | 2.73 | -0.05 |
| May | 4.02 | 4.04 | -0.02 |
| Jun | 4.32 | 4.24 | 0.08 |
| Jul | 4.18 | 4.16 | 0.02 |
| Aug | 3.93 | 4.00 | -0.07 |
| Sep | 3.19 | 3.17 | 0.02 |
| Oct | 2.76 | 2.77 | -0.01 |
| Nov | 1.48 | 1.57 | -0.09 |
| Dec | 1.00 | 1.06 | -0.06 |
30.51 | 30.89 | -0.38 |