| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.63 | 3.50 | 0.13 |
| Feb | 3.78 | 3.94 | -0.16 |
| Mar | 5.11 | 5.14 | -0.03 |
| Apr | 5.29 | 5.18 | 0.11 |
| May | 5.42 | 5.49 | -0.07 |
| Jun | 3.45 | 3.42 | 0.03 |
| Jul | 3.80 | 3.59 | 0.21 |
| Aug | 3.77 | 3.88 | -0.11 |
| Sep | 3.61 | 3.61 | 0.00 |
| Oct | 4.05 | 4.00 | 0.05 |
| Nov | 4.90 | 4.67 | 0.23 |
| Dec | 4.60 | 4.59 | 0.01 |
51.41 | 51.01 | 0.40 |