| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.52 | 0.55 | -0.03 |
| Feb | 0.78 | 0.74 | 0.04 |
| Mar | 1.39 | 1.38 | 0.01 |
| Apr | 2.90 | 2.88 | 0.02 |
| May | 3.71 | 3.79 | -0.08 |
| Jun | 4.09 | 4.19 | -0.10 |
| Jul | 3.00 | 3.16 | -0.16 |
| Aug | 3.38 | 3.23 | 0.15 |
| Sep | 2.86 | 2.86 | 0.00 |
| Oct | 2.24 | 2.30 | -0.06 |
| Nov | 1.15 | 1.13 | 0.02 |
| Dec | 0.79 | 0.80 | -0.01 |
26.81 | 27.01 | -0.20 |