| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.60 | 3.30 | 0.30 |
| Feb | 2.50 | 2.16 | 0.34 |
| Mar | 3.01 | 2.74 | 0.27 |
| Apr | 2.18 | 1.85 | 0.33 |
| May | 2.37 | 2.19 | 0.18 |
| Jun | 2.43 | 2.15 | 0.28 |
| Jul | 0.95 | 0.85 | 0.10 |
| Aug | 0.80 | 0.72 | 0.08 |
| Sep | 1.31 | 1.13 | 0.18 |
| Oct | 2.61 | 2.21 | 0.40 |
| Nov | 3.86 | 3.22 | 0.64 |
| Dec | 4.08 | 3.56 | 0.52 |
29.70 | 26.08 | 3.62 |