FourCastNet v2 (IFS init) (fourcastnet_ifs)
source aiwp · product FOUR · initial conditions from IFS · steps every 6 h to 240 h · initializations 0, 12 UTC.
Scores use the latest model version segment, FOUR_v200, starting 2026-08-28. Earlier days ran a different version of the model and are excluded rather than silently pooled into the same average.
These pages are always bilinear interpolation, the headline method. The nearest-node variant, and every other window/initialization/interpolation/variable combination, is published on each permanent link below — follow any number.
Daily maximum temperature — MAE °F by station
| Station | d0 | d1 | d2 | d3 | d4 | d5 | d6 | d7 | d8 | d9 | lead 1–9 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| KATL | — | 2.04-2.04 · n=2 | 3.84-3.84 · n=1 | — | — | — | — | — | — | — | |
| KAUS | — | 5.40-5.40 · n=2 | 4.78-4.78 · n=1 | — | — | — | — | — | — | — | |
| KBOS | — | 4.49-2.33 · n=2 | 6.85-6.85 · n=1 | — | — | — | — | — | — | — | |
| KDCA | — | 2.63-2.63 · n=2 | 2.09-2.09 · n=1 | — | — | — | — | — | — | — | |
| KDEN | — | 5.09-5.09 · n=2 | 3.61-3.61 · n=1 | — | — | — | — | — | — | — | |
| KDFW | — | 6.61-6.61 · n=2 | 5.05-5.05 · n=1 | — | — | — | — | — | — | — | |
| KEWR | — | 2.22-2.22 · n=2 | 2.01-2.01 · n=1 | — | — | — | — | — | — | — | |
| KIAH | — | 3.71-3.71 · n=2 | 3.46-3.46 · n=1 | — | — | — | — | — | — | — | |
| KLAS | — | 5.51-5.51 · n=2 | 3.23-3.23 · n=1 | — | — | — | — | — | — | — | |
| KLAX | — | 3.51-3.51 · n=2 | 2.68-2.68 · n=1 | — | — | — | — | — | — | — | |
| KMIA | — | 5.26-5.26 · n=2 | 5.24-5.24 · n=1 | — | — | — | — | — | — | — | |
| KMSP | — | 6.11-6.11 · n=2 | 6.66-6.66 · n=1 | — | — | — | — | — | — | — | |
| KMSY | — | 2.73-2.73 · n=2 | 1.49-1.49 · n=1 | — | — | — | — | — | — | — | |
| KNYC | — | 1.69+0.90 · n=2 | 0.44+0.44 · n=1 | — | — | — | — | — | — | — | |
| KOKC | — | 8.23-8.23 · n=2 | 7.67-7.67 · n=1 | — | — | — | — | — | — | — | |
| KORD | — | 2.02-2.02 · n=2 | 1.55-1.55 · n=1 | — | — | — | — | — | — | — | |
| KPHL | — | 3.09-3.09 · n=2 | 4.05-4.05 · n=1 | — | — | — | — | — | — | — | |
| KPHX | — | 9.86-9.86 · n=2 | 10.13-10.13 · n=1 | — | — | — | — | — | — | — | |
| KSAN | — | 2.57-2.57 · n=2 | 0.03-0.03 · n=1 | — | — | — | — | — | — | — | |
| KSAT | — | 3.72-3.72 · n=2 | 2.68-2.68 · n=1 | — | — | — | — | — | — | — | |
| KSEA | — | 2.65-2.65 · n=2 | 0.07-0.07 · n=1 | — | — | — | — | — | — | — | |
| KSFO | — | 2.34-2.34 · n=2 | 0.68-0.68 · n=1 | — | — | — | — | — | — | — | |
| KTTN | — | 2.39+0.21 · n=2 | 0.61-0.61 · n=1 | — | — | — | — | — | — | — |
Up to 2 of the scored days in this table carry a QC flag on the observation (a CLI value that disagreed with the hourly observations, or a fallback source). They are kept in the scores and counted here rather than dropped — see methodology.
+ model too warm · − model too cold · bias interval includes zero · ★ lowest MAE · = not distinguishable from the leader · ▼ significantly worse · n < 30 greyed and unranked · CI is a 95 % moving-block bootstrap interval.
Daily minimum temperature — MAE °F by station
| Station | d0 | d1 | d2 | d3 | d4 | d5 | d6 | d7 | d8 | d9 | lead 1–9 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| KATL | — | 0.99-0.87 · n=2 | 0.44+0.44 · n=1 | — | — | — | — | — | — | — | |
| KAUS | — | 4.11+4.11 · n=2 | 3.98+3.98 · n=1 | — | — | — | — | — | — | — | |
| KBOS | — | 2.54-1.00 · n=2 | 1.64-1.64 · n=1 | — | — | — | — | — | — | — | |
| KDCA | — | 0.31-0.31 · n=2 | 0.87+0.87 · n=1 | — | — | — | — | — | — | — | |
| KDEN | — | 2.63+2.63 · n=2 | 0.96+0.96 · n=1 | — | — | — | — | — | — | — | |
| KDFW | — | 1.30-1.30 · n=2 | 1.83-1.83 · n=1 | — | — | — | — | — | — | — | |
| KEWR | — | 2.16+2.16 · n=2 | 3.68+3.68 · n=1 | — | — | — | — | — | — | — | |
| KIAH | — | 1.71+1.71 · n=2 | 2.10+2.10 · n=1 | — | — | — | — | — | — | — | |
| KLAS | — | 5.68-5.68 · n=2 | 6.66-6.66 · n=1 | — | — | — | — | — | — | — | |
| KLAX | — | 1.88+1.88 · n=2 | 1.66+1.66 · n=1 | — | — | — | — | — | — | — | |
| KMIA | — | 3.22+2.78 · n=2 | 0.69+0.69 · n=1 | — | — | — | — | — | — | — | |
| KMSP | — | 1.89-1.89 · n=2 | 1.60-1.60 · n=1 | — | — | — | — | — | — | — | |
| KMSY | — | 1.98-0.11 · n=2 | 2.14-2.14 · n=1 | — | — | — | — | — | — | — | |
| KNYC | — | 2.04+0.31 · n=2 | 0.63+0.63 · n=1 | — | — | — | — | — | — | — | |
| KOKC | — | 2.63+2.63 · n=2 | 0.33+0.33 · n=1 | — | — | — | — | — | — | — | |
| KORD | — | 2.07+2.07 · n=2 | 2.32+2.32 · n=1 | — | — | — | — | — | — | — | |
| KPHL | — | 2.14+2.14 · n=2 | 4.78+4.78 · n=1 | — | — | — | — | — | — | — | |
| KPHX | — | 3.82-3.82 · n=2 | 5.16-5.16 · n=1 | — | — | — | — | — | — | — | |
| KSAN | — | 1.34+0.53 · n=2 | 0.73-0.73 · n=1 | — | — | — | — | — | — | — | |
| KSAT | — | 1.54-0.20 · n=2 | 1.48-1.48 · n=1 | — | — | — | — | — | — | — | |
| KSEA | — | 1.80+1.44 · n=2 | 0.47+0.47 · n=1 | — | — | — | — | — | — | — | |
| KSFO | — | 1.22-1.22 · n=2 | 0.81-0.81 · n=1 | — | — | — | — | — | — | — | |
| KTTN | — | 7.44+7.44 · n=2 | 10.54+10.54 · n=1 | — | — | — | — | — | — | — |
Up to 2 of the scored days in this table carry a QC flag on the observation (a CLI value that disagreed with the hourly observations, or a fallback source). They are kept in the scores and counted here rather than dropped — see methodology.
Month-by-month slices live on the canonical page: they do not depend on the window, initialization or interpolation selected here.
Source and licence
Where it comes from
aiwp · FOUR · IFS initial conditions
Steps every 6 h to 240 h; sampled at 00/06/12/18 UTC only.
Licence
NOAA/CIRA AIWP, U.S. Government work, public domain. Cite Radford et al. (2025), BAMS, doi:10.1175/BAMS-D-24-0057.1.
Post-processing
None. Raw grid values, bilinear (headline) or nearest-node interpolation, no MOS, no bias correction, no downscaling.
All scores as JSON scores_latest.csv daily_errors.csv.gz data & licences