| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.59 | 3.27 | 0.32 |
| Feb | 3.05 | 2.92 | 0.13 |
| Mar | 3.88 | 3.58 | 0.30 |
| Apr | 3.93 | 3.73 | 0.20 |
| May | 3.87 | 3.49 | 0.38 |
| Jun | 3.94 | 3.48 | 0.46 |
| Jul | 4.67 | 3.98 | 0.69 |
| Aug | 4.15 | 3.71 | 0.44 |
| Sep | 3.78 | 3.68 | 0.10 |
| Oct | 3.06 | 2.75 | 0.31 |
| Nov | 3.24 | 2.97 | 0.27 |
| Dec | 3.64 | 3.44 | 0.20 |
44.80 | 41.00 | 3.80 |