1 On average, dogs have two cycles a year. 2  The estrus cycle lasts on average 12-21 days, but maybe be as short as a few days to four weeks. 3  The estrus period length varies widely between breeds and individual dogs. 4  The length of a cycle varies widely, even for dogs of the same breed. The estrus cycle lasts on average 12-21 days, but maybe be as short as a few days to four weeks. 2  The estrus period length varies widely between breeds and individual dogs. 3  The length of a cycle varies widely, even for dogs of the same breed. 4  If in doubt, assume the longer end of the range for the cycle length.
In most years, Salt Lake City averages a daily maximum temperature for April that's between 58 and 66 degrees Fahrenheit (14 to 19 degrees Celsius). The minimum temperature usually falls between 37 and 42 Â°F (3 to 6 Â°C). The days at Salt Lake City continue to warm steadily during April.
Salt Lake City features large variations in temperatures between seasons. During summer, there are an average of 56 days per year with temperatures of at least 90 Â°F (32.2 Â°C), 23 days of at least 95 Â°F (35 Â°C), and 5 days of 100 Â°F (37.8 Â°C). However, average daytime July humidity is only 22%.