Weather in United States

• All Year
• Winter
• Spring
• Summer
• Autumn

Yearly weather

Calculations are based on the last 8 years of historical weather data.

Temperatures

• Houston and Miami generally experience the warmest temperatures year-round, with Miami remaining fairly stable while Houston sees a significant increase in summer highs

• In contrast, Boston and Chicago exhibit much cooler climates, particularly in winter months, with Boston showing the lowest temperature ranges overall

• Interestingly, cities like Los Angeles and San Francisco maintain mild temperatures throughout the year, distinctly cooler than Texas cities but warmer than the northeastern U.S

• during winter.

Conditions

• Los Angeles consistently stands out with the highest total sun hours throughout the year, particularly from April to July, where it often exceeds 10 hours per day with negligible precipitation.

• In contrast, Miami and Boston typically have lower sun hours and higher precipitation levels during the summer months, with Miami experiencing significant rainfall in June and October, while Boston sees substantial precipitation in September and December.

• Houston and Dallas also show a pattern of high sun hours, especially in mid-summer, but they tend to experience fluctuating precipitation levels, notably in November and April. Overall, cities in the southeastern U.S., like Atlanta and Miami, appear to have a more variable balance of sun and precipitation compared to the more consistently sunny and dry conditions of Los Angeles.

Astronomy

• Cities in the northern part of the U.S., such as Boston, New York, and Chicago, tend to have earlier sunrises and longer day lengths in June compared to those in the southern region like Miami and Houston. Notably, Boston experiences the earliest sunrise in June at 5:08 AM and the shortest day length in December at just 9:08 hours.

• In contrast, cities like Miami have a comparatively shorter maximum day length of 13 hours and 43 minutes in June. Additionally, while Houston sees the latest sunset at 8:22 PM in June, Miami's latest sunset is slightly earlier at 8:13 PM in July, highlighting variations even among cities situated in the same latitude range.