| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.74 | 0.74 | 0.00 |
| Feb | 0.88 | 0.91 | -0.03 |
| Mar | 1.70 | 1.64 | 0.06 |
| Apr | 3.08 | 3.10 | -0.02 |
| May | 4.68 | 4.60 | 0.08 |
| Jun | 4.80 | 4.87 | -0.07 |
| Jul | 3.35 | 3.23 | 0.12 |
| Aug | 3.88 | 3.75 | 0.13 |
| Sep | 3.01 | 3.06 | -0.05 |
| Oct | 2.33 | 2.26 | 0.07 |
| Nov | 1.35 | 1.27 | 0.08 |
| Dec | 1.14 | 1.19 | -0.05 |
30.94 | 30.62 | 0.32 |