| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.47 | 3.11 | 0.36 |
| Feb | 2.98 | 2.74 | 0.24 |
| Mar | 3.83 | 3.50 | 0.33 |
| Apr | 3.81 | 3.62 | 0.19 |
| May | 3.73 | 3.52 | 0.21 |
| Jun | 3.91 | 3.94 | -0.03 |
| Jul | 4.77 | 4.10 | 0.67 |
| Aug | 3.97 | 3.61 | 0.36 |
| Sep | 3.63 | 3.41 | 0.22 |
| Oct | 2.99 | 2.56 | 0.43 |
| Nov | 3.16 | 2.76 | 0.40 |
| Dec | 3.60 | 3.20 | 0.40 |
43.85 | 40.07 | 3.78 |