| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.74 | 3.81 | -0.07 |
| Feb | 4.38 | 4.41 | -0.03 |
| Mar | 4.69 | 4.74 | -0.05 |
| Apr | 5.04 | 5.08 | -0.04 |
| May | 5.31 | 5.40 | -0.09 |
| Jun | 4.51 | 4.31 | 0.20 |
| Jul | 4.48 | 4.58 | -0.10 |
| Aug | 3.61 | 3.30 | 0.31 |
| Sep | 3.45 | 3.60 | -0.15 |
| Oct | 3.93 | 3.93 | 0.00 |
| Nov | 3.91 | 3.85 | 0.06 |
| Dec | 4.73 | 4.74 | -0.01 |
51.78 | 51.75 | 0.03 |