The Number of Comfortable Temperature Days Per Year: 10-29°C (50-85°F)

Map created by MyPerfectWeather.comThis map represents the “Number of Days with Comfortable Weather” across the United States. The comfortable weather criteria are defined as days where the high temperature is between 10°C (50°F) and 29°C (85°F), and the maximum dew point temperature is ≤ 18°C (65°F).

Key Features of the Map:

Color Scale: The map uses a gradient color scale ranging from purple (indicating the fewest comfortable days) to red (indicating the most comfortable days). Specifically:
- Purple/Blue Zones (0-100 days): Represent areas with few comfortable days.
- Green/Yellow Zones (100-300 days): Represent areas with a moderate number of comfortable days.
- Orange/Red Zones (300+ days): Represent areas with a high number of comfortable days.

Geographic Trends:

Pacific Northwest: “The PNW scores well, but this doesn’t take into account sun or rainy days!”
West Coast (South Oregon to Oxnard): “The west coast from south Oregon to Oxnard scores the best – 350+ days are comfortable.”
Southern California (Los Angeles/San Diego): “LA/SD has 280 nice days with inland areas lowering the score – but even the coast has some humid days.”
Southwest (elevation areas): “Elevation increases the number of nice days in the southwest.”
Hawaii: “Hawaii is humid for most of the year, ironically making it the 2nd worst state.”
Alaska: “Alaska ranks the worst of all states.”
South Texas: “South Texas has the highest heat indices in the mainland US.”
South Florida: “South Florida is humid for most of the year.”
Southeast (Upstate South Carolina and Charlotte area): “A southeast optimum band has good weather roughly from Sept-May, peaking at 280 nice days near Upstate SC & Charlotte.”
Northeast (Boston to Chicago): “A northeast optimum band from Boston to Chicago has nice summers but poor winters. Further north from here, the winters get significantly longer.”
Philadelphia Area: “A local minimum in Philly where neither winters nor summers are nice – but it’s on the edge so this would change with different thresholds.”
Central US: “The central US is further from moderating influences and so scores poorly.”