Climate twins of Grand Terrace, CA
These are the US cities whose 12-month climate pattern most closely matches Grand Terrace's. Each "twin" must be at least 140 miles away to avoid trivial near-neighbor matches. Similarity is computed across all 24 monthly metrics (12 average temperatures + 12 average precipitations), normalized so temperature and precipitation contribute equally.
Side-by-side: Grand Terrace vs its climate twin
Top match: Newman, CA
| Month | Grand Terrace | Newman | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 69.5°F | 44.2°F | 2.11 in | 60.1°F | 38.2°F | 2.66 in |
| February | 69.9°F | 44.8°F | 2.45 in | 66.6°F | 40.8°F | 2.23 in |
| March | 72.3°F | 46.9°F | 1.54 in | 73.0°F | 43.6°F | 1.76 in |
| April | 75.1°F | 49.9°F | 0.57 in | 79.7°F | 46.3°F | 0.71 in |
| May | 80.4°F | 54.8°F | 0.29 in | 88.0°F | 52.1°F | 0.45 in |
| June | 87.4°F | 58.4°F | 0.08 in | 95.7°F | 57.5°F | 0.07 in |
| July | 94.1°F | 62.9°F | 0.03 in | 100.0°F | 61.6°F | 0.00 in |
| August | 96.6°F | 63.7°F | 0.03 in | 98.2°F | 60.4°F | 0.00 in |
| September | 93.4°F | 60.8°F | 0.23 in | 94.9°F | 57.3°F | 0.04 in |
| October | 81.9°F | 54.8°F | 0.40 in | 85.1°F | 50.0°F | 0.59 in |
| November | 76.1°F | 47.4°F | 0.68 in | 70.7°F | 42.4°F | 1.06 in |
| December | 69.1°F | 43.2°F | 1.51 in | 60.4°F | 37.8°F | 2.14 in |
How this is computed
Each city is represented by a 24-dimensional vector: 12 monthly average temperatures and 12 monthly average precipitations. Each dimension is z-score normalized across the population of US cities, so that temperature variance and precipitation variance contribute proportionally. Distance between cities is Euclidean. We filter out cities within 2° latitude/longitude (~140 miles) so that "twins" mean climatically similar but geographically distinct — not just the neighboring town. Full methodology →