Meanwhile Las Vegas has seen its wettest monsoon season in 10 years. It's helped keep most of their highs so far in August under 100. Only 5 days of 100+ degree highs so far through the first 15 days, a record. The record for the whole month is 17 set back in 1968, 1983, and 1984. Interesting one of PDX longest dry spells in 1984 also occurred last time Las Vegas tied this record.