| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.09 | 2.94 | 0.15 |
| Feb | 3.08 | 3.05 | 0.03 |
| Mar | 4.43 | 4.32 | 0.11 |
| Apr | 5.27 | 5.30 | -0.03 |
| May | 5.56 | 5.48 | 0.08 |
| Jun | 3.76 | 3.83 | -0.07 |
| Jul | 4.07 | 4.11 | -0.04 |
| Aug | 3.70 | 3.65 | 0.05 |
| Sep | 3.60 | 3.71 | -0.11 |
| Oct | 3.50 | 3.63 | -0.13 |
| Nov | 4.59 | 4.43 | 0.16 |
| Dec | 3.38 | 3.38 | 0.00 |
48.03 | 47.83 | 0.20 |