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.
Days of Hot Weather in Salt Lake City. Most summer days at Salt Lake City reach at least 90 Fahrenheit. But temperatures in the 100s F (over 38 Â°C) are not common. The city averages just 4 or 5 days a year when the thermometer reaches 100 degrees. Days per month in Salt Lake City of at least 70, 80 or 90 Â°F.