HISTORICAL AND FORECAST WEATHER DATA FILES

Note: You will only be able to access the data files included in your subscription package.
If data files are not updated here, check our mirror site at http://www.frontierweatherbackup.com/weatherdata2.html
U.S. Composite Historical and Forecast Degree Day Data

Population Weighted
Natural Gas Heating Weighted
Oil Heating Weighted
Daily U.S. Population Weighted Weather Data
• 1970-2011 | Old Mthd #2 | Old Mthd #1
• 1996-Forecast | Old Mthd #2 | Old Mthd #1
• Last 15 + 15 day forecast | Old Mthd #2 | Old Mthd #1
• Last 3 months + 9 month forecast

Daily State Population Weighted Weather Data
• 1971-2011 (8 MB zip file)
• 1/1/2010 to 15 day forecast
• Last 15 + 15 day forecast
• State Population Data

Monthly State Population Weighted Weather Data
• 1971-current plus 9 month forecast
• 2010-current plus 9 month forecast

Daily Power Region Degree Day Averages
Map of Power Regions
Year to Date Power Region Averages
Last 15 days/Next 15 Days
Last 10 weeks/Next 15 Days
Power Region Forecast from 1 Week Ago

Monthly Power Region Degree Day Averages
1971 through 9 Month Forecast
Last Year through 9 Month Forecast

Click here to view data file links in previous format

Daily U.S. Gas Weighted Degree Day Averages
1970-2011 | Mthd #3 | Old Mthd #2 | Old Mthd #1
1996-Forecast | Mthd #3 | Old Mthd #2 | Old Mthd #1
Last 15 + 15 Day Forecast | Mthd #3 | Old Mthd #2 | Old Mthd #1
Last 3 months + 9 month forecast | Mthd #3

Daily Census Region Degree Day Averages
1970-2011
1996-Forecast | alternate format | Old Methodology #1
Last 15 + 15 Day Forecast | alternate format
Last 3 months + 9 month forecast | alternate format

Daily Gas Region Degree Day Averages
1970-2011 | Old Methodology #2
1996-Forecast | alternate format | Old Methodology #2
Last 15 + 15 Day Forecast | alternate format
Last 3 months + 9 month forecast | alternate format

Monthly U.S. Degree Day Totals
U.S. 1970-2011 | Methodology #3
U.S. 1996-current plus 9 month forecast | Methodology #3

Monthly Census Region Degree Day Totals
Census Region 1970-2011
Census Region 1996-current plus 9 month forecast

Monthly Gas Region Degree Day Totals
Gas Region 1970-2011
Gas Region 1996-current plus 9 month forecast
Daily U.S. Oil Weighted Avgs
• 1970-2010
• 1996-Present
• Forecast

PADD I Averages
• 1996-Present
• Last 10 and Forecast

PADD I State Averages
• 1996-Present
• Last 10 and Forecast

NOAA Data Files
Weekly Data
• CDD Pop Weighted
• HDD Pop Weighted

Monthly Data
• CDD Pop Weighted
• HDD Pop Weighted

Archived Data
• Recent Data
• 1997-current

City Specific Historical and Forecast Daily Temperature & Degree Day Data

Historical Daily Weather Data
Date Range
U.S. Max/Min Data
U.S. with HDDs/CDDs
U.S. with Max/Min/Avg/DDs/Dewpoint/Wind/MSLP/Precip
37 U.S. City Subset
Subset w/ DDs
Canadian Data
Yesterday
.txt
.txt
.txt
.txt
Last 10 Days
.txt
.txt
.txt
.txt
.txt
.txt
Last 30 Days
.txt
.txt
2010-Current
.txt
.txt
.txt
.txt
1996-2010
.txt (.zip)
.txt (.zip)
.txt (.zip)
1971-2010
.txt (.zip)
Historical Monthly Weather Data
2010-Current
.txt
.txt
1971-Current
.txt
.txt

Climatology Data
• 1971-2000 Daily Normals          • 1971-2000 Monthly Normals          • 1981-2010 Daily Normals          • 1981-2010 Monthly Normals

15 Day Forecast Data
Long Range Forecast Data
U.S. Cities Only

• 10 Day Vertical
• 10 Day Horizontal
• 15 Day Vertical
• 15 Day Horizontal
U.S. & Canadian Cities

• 15 Day Vertical
  (by fcst day, not date)

• Tmp,DDs,RH,HI/WCI,Pcp

• Listing of Forecast Cities

• Monthly Temp Anomaly Forecasts
• Monthly Temp Anomaly Forecasts (vertical list)
• Monthly Forecast w/ DDs

• 9 Month U.S. Daily Pop Weighted DDs
• 9 Month U.S. Daily Gas Weighted Degree Days
• 9 Month Regional Daily Pop Weighted DDs
• 9 Month Regional Daily Pop Weighted DDs (alt format)

• 40 Site 6 Mo Daily HDD Fcst (xls)
• 40 Site 6 Mo Daily HDD Fcst (txt)
• 3 Site 6 Mo Daily HDD Fcst (xls)
• 3 Site 6 Mo Daily HDD Fcst (txt)
• 182 Site 9 Mo Daily Temp/DD Fcsts
• 182 Site Last 3/Next 9 Month Temp/DD Fcsts

City Specific Forecast Model Data Files

Raw GFS model Temperature output for U.S. and Global locations
00Z GFS model run
06Z GFS model run
12Z GFS model run
18Z GFS model run
Adjusted
Days 9-15
U.S./Canada (Alt Format)
Global Cities (Alt Format)
U.S./Canada (Alt Format)
Global Cities (Alt Format)
U.S./Canada (Alt Format)
Global Cities (Alt Format)
U.S./Canada (Alt Format)
Global Cities (Alt Format)
These files adjust the temperatures during days 9-15 to account for the decrease in model resolution.
No Days
9-15
Adustment
U.S./Canada (Alt Format)
Global Cities (Alt Format)
U.S./Canada (Alt Format)
Global Cities (Alt Format)
U.S./Canada (Alt Format)
Global Cities (Alt Format)
U.S./Canada (Alt Format)
Global Cities (Alt Format)
No adjustment is made to the temperatures during days 9-15 to account for the decrease in model resolution in these files.
Only Daily Anomalies
U.S./Canada (Alt Format)
U.S./Canada (Alt Format)
U.S./Canada (Alt Format)
U.S./Canada (Alt Format)
These anomaly files calculate the anomalies based on the average of the temperature anomalies at each observation time, and will match the model anomaly maps on the website. These may be slightly more accurate as the model climatology the anomalies are calculated from is not based on the average of high and low temperatures, but rather is just the average at each 6 hour time interval that model data is available for. The previous sets of files calculate the anomaly based on the average of the high and low temperature.

Raw GFS ENSEMBLE model Temperature output for U.S. and Global locations
00Z GFS Ensemble run
06Z GFS Ensemble run
12Z GFS Ensemble run
18Z GFS Ensemble run
Daily Max/Min/Anomaly Forecasts
U.S./Canada (Alt Format)
Global Cities (Alt Format)
U.S./Canada (Alt Format)
Global Cities (Alt Format)
U.S./Canada (Alt Format)
Global Cities (Alt Format)
U.S./Canada (Alt Format)
Global Cities (Alt Format)
No days 9-15 adjusment is needed with the ensemble model files as the model resolution remains constant throughout the 15 day period.
Only Daily Anomalies
U.S./Canada
Global Cities
U.S./Canada
Global Cities
U.S./Canada
Global Cities
U.S./Canada
Global Cities
These anomaly files calculate the anomalies based on the average of the temperature anomalies at each observation time, and will match the model anomaly maps on the website. These may be slightly more accurate as the model climatology the anomalies are calculated from is not based on the average of high and low temperatures, but rather is just the average at each 6 hour time interval that model data is available for. The previous sets of files calculate the anomaly based on the average of the high and low temperature.
All forecast high an low data is based on a 6Z to 6Z time frame. That is approximately midnight to midnight for U.S. locations, but will vary for international locations. We may eventually try to bin cities together by time zone so all locations are local midnight to midnight. Note that the Global files are about 10 MB each, and contain forecasts for more than 8000 locations. A file listing all the global locations will be posted soon. The U.S./Canadian locations are the same as in the other forecast and historical files.

Raw ECMWF & ECMWF ENSEMBLE model Temperature output for U.S. and Global locations
00Z ECMWF run
00Z ECMWF Ensemble run
12Z ECMWF run
12Z ECMWF Ensemble run
Daily 850 mb Temp Anomalies
U.S./Canada (Alt Format)
U.S./Canada (Alt Format)
U.S./Canada (Alt Format)
U.S./Canada (Alt Format)
These files are of 850 mb (~5000 ft for areas near sea level) temperature anomalies in degrees Fahrenheit. These anomalies may differ from those at the surface. Daily average surface anomalies may be about 70% as large as those at 850mb on average. Daily anomalies are for the 6Z to 6Z time period each day.

Raw GFS model Precipitation and Snowfall output for U.S. and Global locations
00Z GFS run
06Z GFS run
12Z GFS run
18Z GFS run
Daily Precipitation Totals
U.S./Canada (Alt Format)
Global (Alt Format)
U.S./Canada (Alt Format)
Global (Alt Format)
U.S./Canada (Alt Format)
Global (Alt Format)
U.S./Canada (Alt Format)
Global (Alt Format)
Daily Snowfall Totals
U.S./Canada (Alt Format)
Global (Alt Format)
U.S./Canada (Alt Format)
Global (Alt Format)
U.S./Canada (Alt Format)
Global (Alt Format)
U.S./Canada (Alt Format)
Global (Alt Format)

Raw NAM and HIRES CONUS NAM model Snowfall output for U.S. locations
00Z GFS run
06Z GFS run
12Z GFS run
18Z GFS run
NAM Daily Snowfall
U.S./Canada (Alt Format)
U.S./Canada (Alt Format)
U.S./Canada (Alt Format)
U.S./Canada (Alt Format)
HIRES NAM Daily Snowfall
U.S./Canada (Alt Format)
U.S./Canada (Alt Format)
U.S./Canada (Alt Format)
U.S./Canada (Alt Format)

Composite Data Files
Individual Ensemble Member Data Files
*90 day bias correction applied to ensemble forecasts
Extended 15 Day GFS MOS Temperature Data Files
00Z
Runs
GFS_C00
GFS_P01
GFS_P02
GFS_P03
GFS_P04
GFS_P05
GFS_P06
GFS_P07
GFS_P08
GFS_P09
GFS_P10
GFS_P11
GFS_P12
GFS_P13
GFS_P14
GFS_P15
GFS_P16
GFS_P17
GFS_P18
GFS_P19
GFS_P20
12Z
Runs
GFS_C00
GFS_P01
GFS_P02
GFS_P03
GFS_P04
GFS_P05
GFS_P06
GFS_P07
GFS_P08
GFS_P09
GFS_P10
GFS_P11
GFS_P12
GFS_P13
GFS_P14
GFS_P15
GFS_P16
GFS_P17
GFS_P18
GFS_P19
GFS_P20

8 Day GFS Ensemble MOS Only Data Files
00z
Runs
GFS_C00
GFS_P01
GFS_P02
GFS_P03
GFS_P04
GFS_P05
GFS_P06
GFS_P07
GFS_P08
GFS_P09
GFS_P10
GFS_P11
GFS_P12
GFS_P13
GFS_P14
GFS_P15
GFS_P16
GFS_P17
GFS_P18
GFS_P19
GFS_P20
Other Model Data Files

Operational 00Z GFS MOS Data
Operational 12Z GFS MOS Data
Operational 00Z NAM MOS Data
Operational 12Z NAM MOS Data

00Z model files are currently updated around 4AM CT and 12Z model files around 4PM CT. Model data files are composed of ensemble MOS data for the first 7 days, a blend of ensemble MOS and bias corrected 2 meter max/min temperautres for day 8 and then 2 meter max/min temperatures interpolated from the raw gridded model data with a bias correction scheme applied for days 9-15. Precipitation values for all days are interpolated directly from the gridded model data files. NWS forecasts are interpolated from the NDFD database.
City Specific Historical and Forecast Hourly Weather Data

Yesterday's Data
Last 3 Days
Last 7 Days
Last 30 Days
• Yesterday's Data for 98 Sites
• Yesterday's Data for ~320 Sites
• Last 3 Days for 98 Sites
• Last 3 Days for ~320 Sites
• Last 7 Days for 98 Sites
• Last 7 Days for ~320 Sites
• Last 30 Days for 98 Sites
• Daily Hourly Avgs for 320 Sites

City Specific 30 Day Hourly Data Files (All Times are Local Standard Time)
• Last 30 Days KABQ
• Last 30 Days KACY
• Last 30 Days KATL
• Last 30 Days KAUS
• Last 30 Days KBDL
• Last 30 Days KBHM
• Last 30 Days KBIL
• Last 30 Days KBIS
• Last 30 Days KBNA
• Last 30 Days KBOI
• Last 30 Days KBOS
• Last 30 Days KBTV
• Last 30 Days KBUF
• Last 30 Days KBUR
• Last 30 Days KBWI
• Last 30 Days KCAE
• Last 30 Days KCLE
• Last 30 Days KCLT
• Last 30 Days KCMH
• Last 30 Days KCQT
• Last 30 Days KCVG
• Last 30 Days KDCA
• Last 30 Days KDEN
• Last 30 Days KDFW
• Last 30 Days KDSM
• Last 30 Days KDTW
• Last 30 Days KEVV
• Last 30 Days KEWR
• Last 30 Days KGEG
• Last 30 Days KGTF
• Last 30 Days KIAH
• Last 30 Days KICT
• Last 30 Days KIND
• Last 30 Days KIPT
• Last 30 Days KJAN
• Last 30 Days KJAX
• Last 30 Days KLAS
• Last 30 Days KLAX
• Last 30 Days KLGA
• Last 30 Days KLIT
• Last 30 Days KMCI
• Last 30 Days KMCO
• Last 30 Days KMDT
• Last 30 Days KMEM
• Last 30 Days KMFR
• Last 30 Days KMGM
• Last 30 Days KMSN
• Last 30 Days KMSP
• Last 30 Days KMSY
• Last 30 Days KOKC
• Last 30 Days KOMA
• Last 30 Days KORD
• Last 30 Days KPDX
• Last 30 Days KPHL
• Last 30 Days KPHX
• Last 30 Days KPIA
• Last 30 Days KPIT
• Last 30 Days KRDU
• Last 30 Days KRIC
• Last 30 Days KRIV
• Last 30 Days KSAC
• Last 30 Days KSAT
• Last 30 Days KSDF
• Last 30 Days KSEA
• Last 30 Days KSFO
• Last 30 Days KSHV
• Last 30 Days KSLC
• Last 30 Days KSTL
• Last 30 Days KTUL
• Last 30 Days KTUS

City Specific 7 Day Hourly Forecast Files (All Times are Local Standard Time)
• 7-Day Fcsts 259 Sites
• 7-Day Fcsts Daily Hourly Averages
• Most Recent Observation (320 Sites)

• ABQ: Data | Graph
• ACY: Data | Graph
• ATL: Data | Graph
• AUS: Data | Graph
• BDL: Data | Graph
• BHM: Data | Graph
• BIL: Data | Graph
• BIS: Data | Graph
• BNA: Data | Graph
• BOI: Data | Graph
• BOS: Data | Graph
• BTV: Data | Graph
• BUF: Data | Graph
• BUR: Data | Graph
• BWI: Data | Graph
• CAE: Data | Graph
• CLE: Data | Graph
• CLT: Data | Graph
• CMH: Data | Graph
• CQT: Data | Graph
• CVG: Data | Graph
• DCA: Data | Graph
• DEN: Data | Graph
• DFW: Data | Graph
• DSM: Data | Graph
• DTW: Data | Graph
• EVV: Data | Graph
• EWR: Data | Graph
• GEG: Data | Graph
• GTF: Data | Graph
• IAH: Data | Graph
• ICT: Data | Graph
• IND: Data | Graph
• IPT: Data | Graph
• JAN: Data | Graph
• JAX: Data | Graph
• LAS: Data | Graph
• LAX: Data | Graph
• LGA: Data | Graph
• LIT: Data | Graph
• MCI: Data | Graph
• MCO: Data | Graph
• MDT: Data | Graph
• MEM: Data | Graph
• MFR: Data | Graph
• MGM: Data | Graph
• MSN: Data | Graph
• MSP: Data | Graph
• MSY: Data | Graph
• OKC: Data | Graph
• OMA: Data | Graph
• ORD: Data | Graph
• PDX: Data | Graph
• PHL: Data | Graph
• PHX: Data | Graph
• PIA: Data | Graph
• PIT: Data | Graph
• RDU: Data | Graph
• RIC: Data | Graph
• RIV: Data | Graph
• SAC: Data | Graph
• SAT: Data | Graph
• SDF: Data | Graph
• SEA: Data | Graph
• SFO: Data | Graph
• SHV: Data | Graph
• SLC: Data | Graph
• STL: Data | Graph
• TUL: Data | Graph
• TUS: Data | Graph