| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.23 | 4.17 | 0.06 |
| Feb | 4.70 | 4.63 | 0.07 |
| Mar | 4.98 | 4.94 | 0.04 |
| Apr | 4.95 | 4.92 | 0.03 |
| May | 5.12 | 5.30 | -0.18 |
| Jun | 4.32 | 4.27 | 0.05 |
| Jul | 4.47 | 4.50 | -0.03 |
| Aug | 3.71 | 3.56 | 0.15 |
| Sep | 3.87 | 3.88 | -0.01 |
| Oct | 3.60 | 3.54 | 0.06 |
| Nov | 3.73 | 3.79 | -0.06 |
| Dec | 4.90 | 4.95 | -0.05 |
52.58 | 52.45 | 0.13 |