| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.01 | 3.09 | -0.08 |
| Feb | 2.43 | 2.45 | -0.02 |
| Mar | 3.53 | 3.48 | 0.05 |
| Apr | 4.91 | 4.97 | -0.06 |
| May | 5.00 | 4.74 | 0.26 |
| Jun | 4.93 | 4.86 | 0.07 |
| Jul | 4.27 | 4.25 | 0.02 |
| Aug | 3.19 | 3.17 | 0.02 |
| Sep | 3.41 | 3.36 | 0.05 |
| Oct | 3.69 | 3.63 | 0.06 |
| Nov | 3.70 | 3.70 | 0.00 |
| Dec | 3.03 | 3.11 | -0.08 |
45.10 | 44.81 | 0.29 |