| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.63 | 0.62 | 0.01 |
| Feb | 0.80 | 0.76 | 0.04 |
| Mar | 1.42 | 1.41 | 0.01 |
| Apr | 2.72 | 2.71 | 0.01 |
| May | 3.75 | 3.72 | 0.03 |
| Jun | 4.55 | 4.45 | 0.10 |
| Jul | 3.63 | 3.47 | 0.16 |
| Aug | 3.49 | 3.37 | 0.12 |
| Sep | 3.09 | 3.09 | 0.00 |
| Oct | 2.20 | 2.16 | 0.04 |
| Nov | 1.13 | 1.06 | 0.07 |
| Dec | 0.85 | 0.88 | -0.03 |
28.26 | 27.70 | 0.56 |