| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.35 | 3.47 | -0.12 |
| Feb | 2.66 | 2.79 | -0.13 |
| Mar | 3.61 | 3.64 | -0.03 |
| Apr | 4.93 | 5.01 | -0.08 |
| May | 5.06 | 5.14 | -0.08 |
| Jun | 4.92 | 5.24 | -0.32 |
| Jul | 4.50 | 4.64 | -0.14 |
| Aug | 3.43 | 3.25 | 0.18 |
| Sep | 3.48 | 3.64 | -0.16 |
| Oct | 3.63 | 3.69 | -0.06 |
| Nov | 3.86 | 3.91 | -0.05 |
| Dec | 3.24 | 3.44 | -0.20 |
46.67 | 47.86 | -1.19 |