***Official 2025 Weather Thread***

[Turn2]

Actually, for the most part, all the thunderstorms have been in the night all summer. This summer overall has been mild. We’ve been conditioned to think 88 and humid is unbearable.

GDD since May 1 are running about 150-200 above normal for most of the state. Factor in the humidity and it's a stinker.

 

[awd4cy]

I’ve come to realize that the amount of stress you have about rain and storms is directly proportional to whether you have to be concerned about water in your home. If you are up on a hill with no history of water coming in, evening thunderstorms are nice to fall asleep to. If you’ve ever had water in your basement, that leads to a sleepless night. And I can see why this summer is getting old.

That’s fair and completely understandable. Agree, Water in the basement is and awful stress to worry about all the time.

 

[awd4cy]

GDD since May 1 are running about 150-200 above normal for most of the state. Factor in the humidity and it's a stinker.

That’s interesting. Maybe night time temps have been above normal?

 

[Turn2]

That’s interesting. Maybe night time temps have been above normal?

High humidity means warmer nights, so that's likely true.

 

[Kinch]

My thermometer had 125 heat index. Wonder if the Amish ice houses are all melted.

 

[cydnote]

High humidity means warmer nights, so that's likely true.

I would think more GDD's are accumulated when the lows are higher than normal. The calculation for corn GDD does not factor in anything below 50 degrees nor above 86 degrees, so in order to accumulate more units, the lows for the day need to remain high so that the daily average temp remains high. Corn growth doesn't benefit from temps above 86, or lows below 50 so whether the nights are 87 or 107 make no difference when calculating GGD other than increasing the low for the following day if it remains hotter overnight.

Edited for clarity

 

[SayMyName]

I would think more GDD's are accumulated when the lows are higher than normal. The calculation for corn GDD does not factor in anything below 50 degrees nor above 86 degrees, so in order to accumulate more units, the lows for the day need to remain high so that the daily average temp remains high. Corn growth doesn't benefit from temps above 86, or lows below 50 so whether the nights are 87 or 107 make no difference other than increasing the low for the following day if it remains hotter overnight.

 

[Turn2]

Corn growth doesn't benefit from temps above 86, or lows below 50 so whether the nights are 87 or 107 make no difference other than increasing the low for the following day if it remains hotter overnight.

Corn respiration continues after sunset, at greater expense to the plant at warmer temps. All things being equal, dryer years and environments with cool nights have a yield advantage over warm nights.

 

[FinalFourCy]

That’s interesting. Maybe night time temps have been above normal?

That’s been the biggest thing

It certainly hadn’t been cool, just some good spells above normal, but the biggest thing is the daily lows have been nearly southern like

 

[Turn2]

That’s been the biggest thing

It certainly hadn’t been cool, just some good spells above normal, but the biggest thing is the daily lows have been nearly southern like

You're not going to see your overnight low drop below the dew point. Dew points today are flirting with 80 and above on my side of town. That hasn't exactly been rare this summer.

 

[madguy30]

That’s interesting. Maybe night time temps have been above normal?

I would guess so.

Even August I think averages in the 50s at night and it's been in the 70s often.

I'll take the blame since I was looking forward to the nights cooling off.

 

[awd4cy]

I would guess so.

Even August I think averages in the 50s at night and it's been in the 70s often.

I'll take the blame since I was looking forward to the nights cooling off.

For Des Moines the average low on the 1st is 66.5. By the 31st the average is still 61.7. September is when the average low is in the 50s.

 

[2122]

Rinse. Repeat. My grass is so long, it's hopeless at this point. I can't ever get to it between rains and the busyness of life.

Rent-A-Goat

 

[madguy30]

For Des Moines the average low on the 1st is 66.5. By the 31st the average is still 61.7. September is when the average low is in the 50s.

I'm talking about of Madison/southern WI which is like 81/57 for the month in a general search.

Kinda interesting it's that much difference.

 

[simply1]

Erin went from tropical storm to cat 5 in 24 hours! Hopefully path keeps it offshore.

 

[cycloner29]

Put down grass seed last Sunday. It’s already up!

 

[Cyched]

Erin went from tropical storm to cat 5 in 24 hours! Hopefully path keeps it offshore.

View attachment 154325

Latest path shows it threading the needle off shore. As long as there’s no unexpected change in direction

 

[mkadl]

Before and after pics of my neighbors new 60 x 100 machine shed erected on Thursday and Friday. It got breezy here yesterday afternoon. (southern Black Hawk Co)
View attachment 154315View attachment 154316View attachment 154317

I sold post frame buildings for 23 years. It is really a susceptible time for post frame construction, with no doors. There are many possible reasons that could contibute and aggregate, that lead this to happening. The wind is #1.

 

[wxman1]

Posting from Wrigley because the Cubs are bowing it again.

 

[Hoggins]

Just got back from the lake and apparently it hailed at our house yesterday. Based off how the garden looks, I believe it. No serious damage but 1.9 inches of rain in an hour with hail will beat up pumpkins