| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.22 | 3.35 | -0.13 |
| Feb | 2.65 | 2.78 | -0.13 |
| Mar | 3.66 | 3.86 | -0.20 |
| Apr | 4.49 | 4.65 | -0.16 |
| May | 4.75 | 4.91 | -0.16 |
| Jun | 4.58 | 4.63 | -0.05 |
| Jul | 3.99 | 3.99 | 0.00 |
| Aug | 3.34 | 3.17 | 0.17 |
| Sep | 3.10 | 3.16 | -0.06 |
| Oct | 3.19 | 3.17 | 0.02 |
| Nov | 3.09 | 3.18 | -0.09 |
| Dec | 3.32 | 3.53 | -0.21 |
43.38 | 44.38 | -1.00 |