| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.67 | 1.66 | 0.01 |
| Feb | 1.64 | 1.61 | 0.03 |
| Mar | 2.01 | 1.94 | 0.07 |
| Apr | 3.67 | 3.68 | -0.01 |
| May | 4.00 | 3.99 | 0.01 |
| Jun | 4.60 | 4.64 | -0.04 |
| Jul | 3.78 | 3.70 | 0.08 |
| Aug | 3.76 | 3.82 | -0.06 |
| Sep | 3.31 | 3.23 | 0.08 |
| Oct | 2.87 | 2.81 | 0.06 |
| Nov | 2.17 | 2.15 | 0.02 |
| Dec | 1.86 | 1.91 | -0.05 |
35.34 | 35.14 | 0.20 |