Climate twins of St. Nazianz, WI

These are the US cities whose 12-month climate pattern most closely matches St. Nazianz'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: St. Nazianz vs its climate twin

Top match: Necedah, WI

Month St. Nazianz Necedah
High Low Precip High Low Precip
January 25.6°F 9.9°F 1.48 in 26.2°F 6.0°F 1.15 in
February 29.4°F 12.2°F 1.29 in 31.5°F 9.4°F 1.03 in
March 40.9°F 22.4°F 1.92 in 44.2°F 19.9°F 1.76 in
April 54.4°F 33.7°F 3.07 in 58.7°F 31.4°F 3.22 in
May 67.4°F 45.4°F 3.78 in 70.9°F 43.6°F 3.92 in
June 77.3°F 55.9°F 4.74 in 79.6°F 53.2°F 5.13 in
July 81.6°F 60.5°F 3.91 in 83.6°F 57.5°F 4.47 in
August 79.6°F 58.8°F 3.60 in 81.1°F 55.7°F 3.97 in
September 72.5°F 50.7°F 3.31 in 73.6°F 47.6°F 3.32 in
October 58.6°F 39.3°F 2.98 in 60.1°F 35.8°F 2.73 in
November 43.9°F 28.1°F 2.10 in 43.6°F 23.8°F 1.87 in
December 31.3°F 17.4°F 1.67 in 30.9°F 12.4°F 1.51 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 →