| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.68 | 4.66 | 0.02 |
| Feb | 4.64 | 4.63 | 0.01 |
| Mar | 4.96 | 4.74 | 0.22 |
| Apr | 3.96 | 3.96 | 0.00 |
| May | 3.73 | 3.93 | -0.20 |
| Jun | 4.53 | 4.60 | -0.07 |
| Jul | 4.64 | 4.75 | -0.11 |
| Aug | 4.46 | 4.71 | -0.25 |
| Sep | 4.19 | 4.14 | 0.05 |
| Oct | 3.56 | 3.49 | 0.07 |
| Nov | 4.09 | 4.15 | -0.06 |
| Dec | 4.58 | 4.68 | -0.10 |
52.02 | 52.44 | -0.42 |