| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.90 | 0.91 | -0.01 |
| Feb | 0.87 | 0.83 | 0.04 |
| Mar | 1.67 | 1.58 | 0.09 |
| Apr | 2.91 | 2.86 | 0.05 |
| May | 4.19 | 4.13 | 0.06 |
| Jun | 5.22 | 5.04 | 0.18 |
| Jul | 4.14 | 4.34 | -0.20 |
| Aug | 4.45 | 4.66 | -0.21 |
| Sep | 3.40 | 3.48 | -0.08 |
| Oct | 2.76 | 2.69 | 0.07 |
| Nov | 1.71 | 1.57 | 0.14 |
| Dec | 1.18 | 1.16 | 0.02 |
33.40 | 33.25 | 0.15 |