With the changing of the seasons, we are seeing a change in the weather patterns that is having a big effect on our diurnal temperature change. The diurnal temperature change is the fluctuation between the low and the high temperature for each day. There are many factors that influence the change. The low pressure trough that swung through on Monday evening allowed for much cooler air to arrive in our region. Right after the front passed, clearing started happening and last night we sat under cloudless skies. The combination of these two events is allowing for a big change between the lows and highs of the day. When this happens, it’s coats and jackets in the mornings and shorts and short sleeves in the afternoons. You will need the heaters in the cars on the way to work, and air conditioners on the way back home.
Our low for Medford today was 44, we are expecting to reach 76. That’s a 32 degree temperature flux throughout today. The Basin had 32 for a low in Klamath Falls, and will hit 66, which is a 34 degree change. The change will be even greater, at the end of the week, when we will stay about as cool in most locations and then get even warmer in the afternoons. Now, while 32-40 degrees in one day sounds like a lot. It could be much more pronounced. Had the trough that came through been stronger, we could see temperature changes that stretch 50-60 degrees in some locations!
We stay dry for a good while. The high pressure ridge should break down early next week, and hopefully we can get another round of moisture. Hopefully.
Meteorologist Seth Phillips