| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.69 | 4.76 | -0.07 |
| Feb | 4.01 | 4.07 | -0.06 |
| Mar | 4.78 | 4.92 | -0.14 |
| Apr | 4.55 | 4.71 | -0.16 |
| May | 4.51 | 4.80 | -0.29 |
| Jun | 4.45 | 4.82 | -0.37 |
| Jul | 4.77 | 5.04 | -0.27 |
| Aug | 4.60 | 5.29 | -0.69 |
| Sep | 4.76 | 4.77 | -0.01 |
| Oct | 4.15 | 4.19 | -0.04 |
| Nov | 4.20 | 4.34 | -0.14 |
| Dec | 4.95 | 5.28 | -0.33 |
54.42 | 56.99 | -2.57 |