| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.71 | 0.67 | 0.04 |
| Feb | 0.93 | 0.92 | 0.01 |
| Mar | 1.60 | 1.55 | 0.05 |
| Apr | 2.45 | 2.46 | -0.01 |
| May | 4.60 | 4.42 | 0.18 |
| Jun | 3.95 | 4.09 | -0.14 |
| Jul | 4.20 | 4.12 | 0.08 |
| Aug | 3.64 | 3.76 | -0.12 |
| Sep | 2.69 | 2.62 | 0.07 |
| Oct | 2.07 | 1.93 | 0.14 |
| Nov | 1.15 | 1.22 | -0.07 |
| Dec | 1.06 | 1.02 | 0.04 |
29.05 | 28.78 | 0.27 |