| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.58 | 4.45 | 0.13 |
| Feb | 4.54 | 4.66 | -0.12 |
| Mar | 4.71 | 4.70 | 0.01 |
| Apr | 3.88 | 4.07 | -0.19 |
| May | 3.69 | 3.51 | 0.18 |
| Jun | 4.60 | 4.79 | -0.19 |
| Jul | 4.02 | 3.98 | 0.04 |
| Aug | 4.55 | 4.67 | -0.12 |
| Sep | 3.76 | 3.91 | -0.15 |
| Oct | 3.41 | 3.50 | -0.09 |
| Nov | 3.93 | 3.93 | 0.00 |
| Dec | 4.60 | 4.71 | -0.11 |
50.27 | 50.88 | -0.61 |