I googled your link and it's used by multiple sites for average temps. They are all failing just like yours. Sometimes they don't use DNS and will just use an IP address which is what you are showing. Here is the Whois information for the ip address you posted. You may be able to email the contact and ask what's up with your link:
OrgName: Naval Research Laboratory
OrgID: NRL-1
Address: Stennis Space Center
City: Stennis Space Center
StateProv: MS
PostalCode: 39529
Country: US
NetRange: 128.160.0.0 - 128.160.255.255
CIDR: 128.160.0.0/16
NetName: SSCNET
NetHandle: NET-128-160-0-0-1
Parent: NET-128-0-0-0-0
NetType: Direct Assignment
NameServer: DNS1.NRLSSC.NAVY.MIL
NameServer: DNS2.NRLSSC.NAVY.MIL
Comment:
RegDate: 1986-09-24
Updated: 2004-12-20
TechHandle: KOD1-ARIN
TechName: Davis, Keith O.
TechPhone: +1-228-688-4250
TechEmail:
KEITH.DAVIS@nrlssc.navy.mil
OrgTechHandle: AHO19-ARIN
OrgTechName: Hornberger, Amy
OrgTechPhone: +1-228-688-4827
OrgTechEmail:
amy.hornberger@nrlssc.navy.mil