| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.80 | 2.75 | 0.05 |
| Feb | 2.56 | 2.60 | -0.04 |
| Mar | 3.89 | 3.81 | 0.08 |
| Apr | 4.89 | 4.51 | 0.38 |
| May | 5.78 | 5.86 | -0.08 |
| Jun | 4.65 | 4.44 | 0.21 |
| Jul | 3.77 | 3.67 | 0.10 |
| Aug | 3.66 | 3.85 | -0.19 |
| Sep | 4.50 | 4.42 | 0.08 |
| Oct | 4.27 | 4.16 | 0.11 |
| Nov | 3.91 | 3.59 | 0.32 |
| Dec | 3.56 | 3.37 | 0.19 |
48.24 | 47.03 | 1.21 |