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| Nominal start date | ECMWF | Météo-France | Met Office(a) | DWD | CMCC | NCEP | JMA | ECCC | Nominal start date | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| System 4 (system=4) | SEAS5 (system=5) | SEAS5 (system=51)(b) | System 5 (system=5) | System 6 (system=6) | System7 (system=7) | System8 (system=8) | GloSea5-GC2 (system=12) | GloSea5-GC2 (system=13) | GloSea5-GC2-LI (system=14) | GloSea5-GC2-LI (system=15) | GloSea6 (system=600) | GloSea6 (system=601) | GloSea6 | GloSea6 | GCFS2.0 (system=2) | GCFS2.1 (system=21) | SPSv3 (system=3) | SPSv3.5 (system=35) | CFSv2 (system=2) | CPS2 (system=2) | CPS3 (system=3) | GEM-NEMO (system=1) | CanCM4i (system=2) | GEM5-NEMO (system=3) | CanESM5.1p1bc (system=4) | GEM5.2-NEMO (system=5) | |||
| January |  |  | | | | | | (c) | (c) | (c) | (c) | (c) | (c) | (c) | * (c) | | | | | | | | | | | | * | * | January |
| February | | | | | | | | | | | | | | | | | | | | | | | | | | | | February | |
| March | | | | | | | | | | | | | | | | | | | | | | | | | | | | March | |
| April | | | | | | | | | | | | | | | | | | | | | | | | | | | | April | |
| May | | | | | | | | | | | | | | | | | | | | | | | | | | | | May | |
| June | | | | | | | | | | | | | | | | | | | | | | | | | | | | June | |
| July | | | | | | | | | | | | | | | | | | | | | | | | | | | | July | |
| August | | | | | | | | | | | | | | | | | | | | | | | | | | | | August | |
| September | | | | | | | | | | | | | | | | | | | | | | | | | | | | September | |
| October | | | | | | | | | | | | | | | | | | | | | | | | | | | | October | |
| November | | | | | | | | | | | | | | | | | | | | | | | | | | | | November | |
| December | | | | | | | | | | | | | | | | | | | | | | | | | | | | December | |
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