| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.76 | 1.73 | 0.03 |
| Feb | 1.82 | 1.96 | -0.14 |
| Mar | 3.35 | 3.32 | 0.03 |
| Apr | 4.46 | 4.16 | 0.30 |
| May | 5.69 | 5.88 | -0.19 |
| Jun | 4.61 | 4.49 | 0.12 |
| Jul | 3.72 | 3.69 | 0.03 |
| Aug | 3.43 | 3.58 | -0.15 |
| Sep | 4.00 | 3.88 | 0.12 |
| Oct | 3.72 | 3.66 | 0.06 |
| Nov | 3.00 | 2.82 | 0.18 |
| Dec | 2.49 | 2.50 | -0.01 |
42.05 | 41.67 | 0.38 |