| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.59 | 1.64 | -0.05 |
| Feb | 1.74 | 1.79 | -0.05 |
| Mar | 2.45 | 2.41 | 0.04 |
| Apr | 3.76 | 3.69 | 0.07 |
| May | 4.57 | 4.67 | -0.10 |
| Jun | 5.15 | 4.97 | 0.18 |
| Jul | 4.24 | 4.10 | 0.14 |
| Aug | 4.04 | 4.01 | 0.03 |
| Sep | 3.71 | 3.56 | 0.15 |
| Oct | 2.86 | 2.75 | 0.11 |
| Nov | 2.38 | 2.32 | 0.06 |
| Dec | 1.98 | 1.98 | 0.00 |
38.47 | 37.89 | 0.58 |