Yearly weather

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

Weather Score #

Heat Seeker Score is a composite score designed for those who crave hot, sunny weather with minimal rainfall. It prioritizes high temperatures and abundant sunshine.

Perfect for sun worshippers, beach lovers, and those seeking warm, dry climates for outdoor activities and relaxation.

Formula optimized for hot weather enthusiasts who prefer temperatures above 25°C (77°F) with maximum sun exposure and minimal precipitation.

Key factors in the calculation:

High temperatures: Favors locations with warm to hot daily highs
Abundant sunshine: Rewards areas with maximum daylight hours
Low precipitation: Penalizes frequent rain and wet conditions
Warm nights: Considers comfortable evening temperatures

Temperatures #

St. Louis experiences a wide range of temperatures throughout the year.
July and August are the hottest months, with average highs exceeding 30°C, which can be uncomfortable.
December, January, and February can be uncomfortably cold, with average lows dipping below freezing.
April, May, September and October have the most comfortable temperatures.

Maximum Temperatures

Minimum Temperatures

Maximum/minimum temperature averages are computed by averaging the max/min temperature of each day for a given period.

Conditions #

In St. Louis, total sun hours exhibit a clear upward trend from January, peaking in June and July with around 8.0 to 8.6 hours of sunshine.
Conversely, precipitation levels are generally lower during the summer months, particularly in June and July, suggesting a drier period that contrasts with the wetter spring months, especially in April.

Sunny Weather

Period	St. Louis
Jan	3.3 hours/day
Feb	3.8 hours/day
Mar	4.3 hours/day
Apr	5.0 hours/day
May	6.3 hours/day
Jun	8.6 hours/day
Jul	8.0 hours/day
Aug	7.5 hours/day
Sep	7.6 hours/day
Oct	6.1 hours/day
Nov	5.1 hours/day
Dec	3.6 hours/day
Average	5.8 hours/day

Sun hours are computed from the number of hours of direct sunlight. The length of the day can affect these measurements; for example, northern cities have longer days in summer.

Precipitation Levels

Average amount of precipitation that falls in a form of a rain, snow, sleet or hail.

Wind Speed

Humidity

Daylight Hours #

In St. Louis, the earliest sunrise occurs in June at 5:37 AM, while the latest is at 7:15 AM in January, indicating significant variation depending on the time of year. The latest sunset is also in June at 8:26 PM, contrasting sharply with the earliest sunset in December at 4:41 PM.
The shortest day, lasting only 9 hours and 30 minutes, takes place in December, whereas the longest day stretches to 14 hours and 48 minutes in June. This pattern reflects typical seasonal changes, with longer days in summer and shorter days in winter.

Sunrise Time

Sunrise times are output in the local timezone of each place.

Sunset Time

Sunset times are output in the local timezone of each place.

Useful Day Length

Discards daylight hours before 7 AM. In places that are located to the west of the timezone, the sun rises and sets later compared to the cities that are located to the east. This means that the useful day length is longer in the cities located to the west of the time zone.

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