On average, nighttime temperatures tend to be cooler than in the daytime. The STM bus network consists of 203 daytime and 23 nighttime routes. Originally serials were broadcast as 15-minute installments each weekday in daytime slots. Common symptoms include loud snoring, restless sleep, and sleepiness during the daytime. This means they thermoregulate during the daytime and forage at night. Gorillas construct nests for daytime and night use. She covered the news of the day across the network's daytime and primetime programming. Sunlight is the term used for the Sun's starlight observed during daytime. Thunderstorm activity happens mostly during the daytime. Summers are warm to hot and sunny with average daytime maximum temperatures of . Thanks to its daytime and primetime schedules, CBS prospered in the 1930s. Modafinil and armodafinil may be effective for daytime sleepiness. They are also active during the daytime. Winters are warm with daytime highs often between . Summers are generally warm, averaging at with daytime temperatures of .