| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.26 | 3.40 | -0.14 |
| Feb | 2.90 | 3.01 | -0.11 |
| Mar | 3.75 | 3.91 | -0.16 |
| Apr | 3.87 | 4.00 | -0.13 |
| May | 3.46 | 3.60 | -0.14 |
| Jun | 4.45 | 4.48 | -0.03 |
| Jul | 3.93 | 4.03 | -0.10 |
| Aug | 4.31 | 4.20 | 0.11 |
| Sep | 4.17 | 4.28 | -0.11 |
| Oct | 4.53 | 4.71 | -0.18 |
| Nov | 3.54 | 3.66 | -0.12 |
| Dec | 4.07 | 4.30 | -0.23 |
46.24 | 47.58 | -1.34 |