The secret humidor of Chase Field

Posted: Updated:
Chase Field has a humidor like the one at Coors Field, and our Royal Norman really wants to see it. Baseballs have been stored in a humidor at Coors Field since 2002. (AP) Chase Field has a humidor like the one at Coors Field, and our Royal Norman really wants to see it. Baseballs have been stored in a humidor at Coors Field since 2002. (AP)
(3TV/CBS 5) -

I want to see a humidor. Not just any humidor, but the humidor reportedly being used at Chase Field to alter game baseballs. But I can’t see it. It’s a secret, for now.

The Diamondbacks aren’t doing any media on it. When I called, my pitch was, "I’m not the media. I’m a meteorologist." That didn’t work.

Someday I suspect we’ll get to see it and it probably will be much like the man behind curtain -- interesting, but not that interesting.

[READ MORE: Eye on the ball: Humidor debuts in Diamondbacks opener]

The Colorado Rockies humidor is not a secret. Here’s a picture with the fellow who invented Colorado’s humidor.

And here’s another where players actually got to sit in it.


Who knows why the big secret. At least one-third of the PCL minor league teams are using humidors because of the big elevation differences in the West.

But perhaps its because the D-backs started, then stopped the program last summer when Major League Baseball said it had to be in place for an entire season.

Nevertheless, it is going to impact the game you see at Chase Field.

[RELATED: What's new at Chase Field]

The balls, we’re told, will be kept at 70 degrees and 50 percent humidity making it “soggier” than a baseball sitting out at Chase Field when it’s 100 degrees and the humidity is at 20 percent.

The baseball will be slightly heavier and with have a slightly rougher surface. Both will add resistance meaning the ball won’t travel as far as, say, a 2017 baseball at Chase Field. Also, that slightly rougher “feel” could help pitchers with their grip.

[SPECIAL SECTION: Arizona Diamondbacks]


Last year, Chase was the third “easiest” ballpark to score runs. It probably won’t be that high this year. In fact, one of the experts on baseball physics says the change will be great. Alan Nathan from the University of Illinois predicts a reduction in home runs of 25 percent to 50 percent. Wow. Here’s a link to his article, which is pretty in depth.

Above: Alan Nathan at Fenway Park.

Last year there were 312 home runs hit at Chase Field. Care to guess how many will be hit this year?

And hey D-backs, let the meteorologist take a look at your humidor someday. It’s my two favorite things -- weather and baseball -- in one. You'll make a weatherman happy.

[MORE: Weather blog]


Click/tap here to download the free azfamily mobile app.

Copyright 2018 KPHO/KTVK (KPHO Broadcasting Corporation). All rights reserved.


  • Arizona's Family Weather BlogMore>>

  • The 5 best things about the Arizona monsoon

    The 5 best things about the Arizona monsoon

    Thursday, June 14 2018 4:10 PM EDT2018-06-14 20:10:51 GMT
    (Source: 3TV/CBS 5)(Source: 3TV/CBS 5)
    (Source: 3TV/CBS 5)(Source: 3TV/CBS 5)

    Five Best Things About the Monsoon  It's that time of the year again! The Arizona Monsoon starts Friday and boy are we excited. Here are the top five best things about the monsoon in Arizona.  

    More >

    Five Best Things About the Monsoon  It's that time of the year again! The Arizona Monsoon starts Friday and boy are we excited. Here are the top five best things about the monsoon in Arizona.  

    More >
  • Get excited! Monsoon hints rumbling to our south

    Get excited! Monsoon hints rumbling to our south

    Wednesday, June 6 2018 5:17 PM EDT2018-06-06 21:17:38 GMT
    (Source: 3TV/CBS 5)(Source: 3TV/CBS 5)
    (Source: 3TV/CBS 5)(Source: 3TV/CBS 5)

    This week, storms started to fire over the Sierra Madre, the mountain range on the western side of the Mexican plateau. 

    More >

    This week, storms started to fire over the Sierra Madre, the mountain range on the western side of the Mexican plateau. 

    More >
  • Heat Warnings: What you need to know

    Heat Warnings: What you need to know

    Tuesday, June 5 2018 7:24 PM EDT2018-06-05 23:24:25 GMT

    Arizona's notorious summer heat has arrived. We hit 110 degrees for the first time this year earlier this week, and more toasty temps are in the forecast.

    More >

    Arizona's notorious summer heat has arrived. We hit 110 degrees for the first time this year earlier this week, and more toasty temps are in the forecast.  

    More >
  • Featured VideoMore>>

  • Parents of Apache Junction teen left in ICU after fatal I-40 wrong-way crash speak out

    Parents of Apache Junction teen left in ICU after fatal I-40 wrong-way crash speak out

    Tuesday, June 19 2018 9:59 AM EDT2018-06-19 13:59:26 GMT
    When her parents got there, they couldn’t believe how bad of shape 16-year-old Meckensy Toro was in. (Source: 3TV/CBS 5)When her parents got there, they couldn’t believe how bad of shape 16-year-old Meckensy Toro was in. (Source: 3TV/CBS 5)
    (Source: 3TV/CBS 5)(Source: 3TV/CBS 5)

    Last week, 16-year-old Meckensy Toro celebrated her birthday, and this week, she's celebrating being alive in the ICU, because this past Saturday was almost her last.

    More >

    Last week, 16-year-old Meckensy Toro celebrated her birthday, and this week, she's celebrating being alive in the ICU, because this past Saturday was almost her last.

    More >
  • Shipping mix-up means 2 special children get needed wheelchairs

    Shipping mix-up means 2 special children get needed wheelchairs

    Tuesday, June 19 2018 9:58 AM EDT2018-06-19 13:58:56 GMT
    Parker and Jacqueline now both have wheelchairs to get around thanks to a shipping mix-up. (Source: 3TV/CBS 5)Parker and Jacqueline now both have wheelchairs to get around thanks to a shipping mix-up. (Source: 3TV/CBS 5)
    Parker and Jacqueline now both have wheelchairs to get around thanks to a shipping mix-up. (Source: 3TV/CBS 5)Parker and Jacqueline now both have wheelchairs to get around thanks to a shipping mix-up. (Source: 3TV/CBS 5)

    A missing wheelchair is returned, and now a second child has a chair, too, thanks to a shipping mix-up.

    More >

    A missing wheelchair is returned, and now a second child has a chair, too, thanks to a shipping mix-up.

    More >
  • Tax refund missing due to 'one digit off'

    Tax refund missing due to 'one digit off'

    Tuesday, June 19 2018 9:58 AM EDT2018-06-19 13:58:44 GMT
    Cristina Allen said she messed up putting in her bank account when filing her taxes and now she doesn't have her refund. (Source: 3TV/CBS 5)Cristina Allen said she messed up putting in her bank account when filing her taxes and now she doesn't have her refund. (Source: 3TV/CBS 5)
    Cristina Allen said she messed up putting in her bank account when filing her taxes and now she doesn't have her refund. (Source: 3TV/CBS 5)Cristina Allen said she messed up putting in her bank account when filing her taxes and now she doesn't have her refund. (Source: 3TV/CBS 5)

    An Arizona taxpayer typed in the wrong bank account number and didn't receive her tax refund.

    More >

    An Arizona taxpayer typed in the wrong bank account number and didn't receive her tax refund.

    More >