Climate twins of Essex, IA
These are the US cities whose 12-month climate pattern most closely matches Essex'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: Essex vs its climate twin
Top match: Reynolds, NE
| Month | Essex | Reynolds | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 33.4°F | 13.7°F | 0.92 in | 36.1°F | 14.1°F | 0.77 in |
| February | 38.7°F | 18.0°F | 1.21 in | 41.1°F | 17.7°F | 0.96 in |
| March | 51.6°F | 29.3°F | 2.06 in | 53.1°F | 27.5°F | 1.70 in |
| April | 63.7°F | 39.9°F | 3.34 in | 63.8°F | 37.6°F | 2.96 in |
| May | 73.8°F | 52.5°F | 6.16 in | 73.6°F | 49.3°F | 5.10 in |
| June | 83.3°F | 63.1°F | 5.53 in | 83.8°F | 60.0°F | 5.00 in |
| July | 86.9°F | 66.7°F | 4.36 in | 88.4°F | 64.8°F | 4.33 in |
| August | 85.2°F | 64.0°F | 3.77 in | 86.4°F | 62.5°F | 3.55 in |
| September | 79.0°F | 54.5°F | 3.02 in | 79.5°F | 53.2°F | 3.10 in |
| October | 66.3°F | 41.6°F | 2.84 in | 66.9°F | 40.2°F | 2.39 in |
| November | 50.7°F | 29.4°F | 1.76 in | 52.0°F | 27.7°F | 1.45 in |
| December | 37.9°F | 19.1°F | 1.40 in | 39.8°F | 18.2°F | 1.08 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 →