| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.71 | 0.67 | 0.04 |
| Feb | 0.79 | 0.74 | 0.05 |
| Mar | 1.50 | 1.42 | 0.08 |
| Apr | 2.58 | 2.60 | -0.02 |
| May | 3.85 | 3.80 | 0.05 |
| Jun | 4.15 | 4.21 | -0.06 |
| Jul | 4.13 | 4.04 | 0.09 |
| Aug | 3.87 | 3.88 | -0.01 |
| Sep | 3.04 | 2.94 | 0.10 |
| Oct | 2.73 | 2.69 | 0.04 |
| Nov | 1.42 | 1.36 | 0.06 |
| Dec | 0.92 | 0.93 | -0.01 |
29.69 | 29.28 | 0.41 |