| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.10 | 3.08 | 0.02 |
| Feb | 2.71 | 2.65 | 0.06 |
| Mar | 3.27 | 3.20 | 0.07 |
| Apr | 3.62 | 3.64 | -0.02 |
| May | 3.95 | 4.00 | -0.05 |
| Jun | 4.88 | 4.59 | 0.29 |
| Jul | 4.78 | 4.76 | 0.02 |
| Aug | 4.36 | 4.29 | 0.07 |
| Sep | 3.85 | 3.47 | 0.38 |
| Oct | 4.72 | 4.42 | 0.30 |
| Nov | 3.44 | 3.22 | 0.22 |
| Dec | 3.74 | 3.76 | -0.02 |
46.42 | 45.08 | 1.34 |