| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.93 | 3.05 | -0.12 |
| Feb | 2.59 | 2.67 | -0.08 |
| Mar | 3.54 | 3.70 | -0.16 |
| Apr | 3.38 | 3.36 | 0.02 |
| May | 4.07 | 4.27 | -0.20 |
| Jun | 4.50 | 4.56 | -0.06 |
| Jul | 4.02 | 4.11 | -0.09 |
| Aug | 3.91 | 3.76 | 0.15 |
| Sep | 4.34 | 4.39 | -0.05 |
| Oct | 3.53 | 3.75 | -0.22 |
| Nov | 3.28 | 3.33 | -0.05 |
| Dec | 3.24 | 3.48 | -0.24 |
43.33 | 44.43 | -1.10 |